



@article {3388,
	title = {The interactions between municipal socioeconomic status and age on hip fracture risk},
	journal = {Osteoporosis International},
	volume = {26},
	year = {2015},
	note = {Times Cited: 0},
	month = {2015},
	pages = {489-498},
	isbn = {0937-941X},
	url = {<Go to ISI>://WOS:000349018700008},
	author = {Oliveira, C.M. and Economou, T. and Bailey, T. and Mendona, D. and Pina, M.F.}
}
@article {3392,
	title = {Modulation of the inflammatory response to chitosan through M2 macrophage polarization using pro-resolution mediators},
	journal = {Biomaterials},
	volume = {37},
	year = {2015},
	note = {Times Cited: 0},
	month = {2015},
	pages = {116-123},
	isbn = {0142-9612},
	url = {<Go to ISI>://WOS:000346541100011},
	author = {Vasconcelos, Daniela P. and Costa, Madalena and Amaral, Isabel F. and Barbosa, Mario A. and Aguas, Artur P. and Barbosa, Judite N.}
}
@article {3295,
	title = {Adsorbed fibrinogen enhances production of bone- and angiogenic-related factors by monocytes/macrophages},
	journal = {Tissue Engineering - Part A},
	volume = {20},
	year = {2014},
	note = {Cited By (since 1996):1Export Date: 21 November 2014},
	month = {2014},
	pages = {250 - 263},
	abstract = {Macrophages are phagocytic cells with great importance in guiding multiple stages of inflammation and tissue repair. By producing a large number of biologically active molecules, they can affect the behavior of other cells and events, such as the foreign body response and angiogenesis. Since protein adsorption to biomaterials is crucial for the inflammatory process, we addressed the ability of the pro-inflammatory molecule fibrinogen (Fg) to modulate macrophage behavior toward tissue repair/regeneration. For this purpose, we used chitosan (Ch) as a substrate for Fg adsorption. Freshly isolated human monocytes were seeded on Ch substrates alone or previously adsorbed with Fg, and allowed to differentiate into macrophages for 10 days. Cell adhesion and morphology, formation of foreign body giant cells (FBGC), and secretion of a total of 80 cytokines and growth factors were evaluated. Both substrates showed similar numbers of adherent macrophages along differentiation as compared with RGD-coated surfaces, which were used as positive controls. Fg did not potentiate FBGC formation. In addition, actin cytoskeleton staining revealed the presence of punctuate F-actin with more elongated and interconnecting cells on Ch substrates. Antibody array screening and quantification of inflammation- and wound-healing-related factors indicated an overall reduction in Ch-based substrates versus RGD-coated surfaces. At late times, most inflammatory agents were down-regulated in the presence of Fg, in contrast to growth factor production, which was stimulated by Fg. Importantly, on Ch+Fg substrates, fully differentiated macrophages produced significant amounts of macrophage inflammatory protein-1delta (MIP-1δ), platelet-derived growth factor-BB, bone morphogenetic protein (BMP)-5, and BMP-7 compared with Ch alone. In addition, other important factors involved in bone homeostasis and wound healing, such as growth hormone, transforming growth factor-β3, and insulin-like growth factor-binding proteins, as well as several angiogenic mediators, including endocrine gland-derived vascular endothelial factor, fibroblast growth factor-7, and placental growth factor, were significantly promoted by Fg. This work provides a new perspective on the inflammatory response in the context of bone repair/regeneration mediated by a pro-inflammatory protein (Fg) adsorbed onto a biomaterial (Ch) that does not otherwise exhibit osteogenic properties. {\textcopyright} Copyright 2014, Mary Ann Liebert, Inc.},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84891526984\&partnerID=40\&md5=bf455ae8d2df37fe5c29d41156c8096a},
	author = {Maciel, J. and Oliveira, M.I. and Colton, E. and McNally, A.K. and Oliveira, C. and Anderson, J.M. and Barbosa, M.A.}
}
@article {3237,
	title = {Atomic force microscopy measurements reveal multiple bonds between Helicobacter pylori blood group antigen binding adhesin and Lewis b ligand},
	journal = {Journal of the Royal Society, Interface / the Royal Society},
	volume = {11},
	year = {2014},
	month = {2014},
	url = {<Go to ISI>://MEDLINE:25320070},
	author = {Parreira, P. and Shi, Q. and Magalhaes, A. and Reis, C.A. and Bugaytsova, J. and Boren, T. and Leckband, D. and Martins, M.C.L.}
}
@article {3246,
	title = {A biocomposite of collagen nanofibers and nanohydroxyapatite for bone regeneration},
	journal = {Biofabrication},
	volume = {6},
	year = {2014},
	month = {2014},
	url = {<Go to ISI>://WOS:000341823500015},
	author = {Ribeiro, Nilza and Sousa, Susana R. and van Blitterswijk, Clemens A. and Moroni, Lorenzo and Monteiro, Fernando J.}
}
@article {3275,
	title = {Biodistribution and pharmacokinetics of Dapivirine-loaded nanoparticles after vaginal delivery in mice},
	journal = {Pharmaceutical Research},
	volume = {31},
	year = {2014},
	note = {Cited By (since 1996):2Export Date: 21 November 2014},
	month = {2014},
	pages = {1834 - 1845},
	abstract = {Purpose: To assess the potential of polymeric nanoparticles (NPs) to affect the genital distribution and local and systemic pharmacokinetics (PK) of the anti-HIV microbicide drug candidate dapivirine after vaginal delivery. Methods: Dapivirine-loaded, poly(ethylene oxide)-coated poly(epsilon-caprolactone) (PEO-PCL) NPs were prepared by a nanoprecipitation method. Genital distribution of NPs and their ability to modify the PK of dapivirine up to 24 h was assessed after vaginal instillation in a female mouse model. Also, the safety of NPs upon daily administration for 14 days was assessed by histological analysis and chemokine/cytokine content in vaginal lavages. Results: PEO-PCL NPs (180-200 nm) were rapidly eliminated after administration but able to distribute throughout the vagina and lower uterus, and capable of tackling mucus and penetrate the epithelial lining. Nanocarriers modified the PK of dapivirine, with higher drug levels being recovered from vaginal lavages and vaginal/lower uterine tissues as compared to a drug suspension. Systemic drug exposure was reduced when NPs were used. Also, NPs were shown safe upon administration for 14 days. Conclusions: Dapivirine-loaded PEO-PCL NPs were able to provide likely favorable genital drug levels, thus attesting the potential value of using this vaginal drug delivery nanosystem in the context of HIV prophylaxis. {\textcopyright} 2014 Springer Science+Business Media New York.},
	keywords = {HIV/AIDS, microbicides, poly(ε-caprolactone), pre-exposure prophylaxis, vaginal drug delivery},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84904252215\&partnerID=40\&md5=e50091fa44bc3ac794251baa9e57d736},
	author = {Das Neves, J. and Ara{\'u}jo, F. and Andrade, F. and Amiji, M. and Bahia, M.F. and Sarmento, B.}
}
@article {3282,
	title = {Can artificial neural networks be used to predict the origin of ozone episodes?},
	journal = {Science of the Total Environment},
	volume = {488-489},
	year = {2014},
	note = {Export Date: 21 November 2014},
	month = {2014},
	pages = {197 - 207},
	abstract = {Tropospheric ozone is a secondary pollutant having a negative impact on health and environment. To control and minimize such impact the European Community established regulations to promote a clean air all over Europe. However, when an episode is related with natural mechanisms as Stratosphere-Troposphere Exchanges (STE), the benefits of an action plan to minimize precursor emissions are inefficient. Therefore, this work aims to develop a tool to identify the sources of ozone episodes in order to minimize misclassification and thus avoid the implementation of inappropriate air quality plans. For this purpose, an artificial neural network model - the Multilayer Perceptron - is used as a binary classifier of the source of an ozone episode. Long data series, between 2001 and 2010, considering the ozone precursors, 7Be activity and meteorological conditions were used. With this model, 2-7\% of a mean error was achieved, which is considered as a good generalization. Accuracy measures for imbalanced data are also discussed. The MCC values show a good performance of the model (0.65-0.92). Precision and F1-measure indicate that the model specifies a little better the rare class. Thus, the results demonstrate that such a tool can be used to help authorities in the management of ozone, namely when its thresholds are exceeded due natural causes, as the above mentioned STE. Therefore, the resources used to implement an action plan to minimize ozone precursors could be better managed avoiding the implementation of inappropriate measures. {\textcopyright} 2014 Elsevier B.V.},
	keywords = {artificial neural network, Classification, Human health, Ozone, Stratosphere, Troposphere},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84900308360\&partnerID=40\&md5=5bb79ec9cf75f45b1556274bf83ce812},
	author = {Fontes, T. and Silva, L.M. and Silva, M. P. and Barros, N. and Carvalho, A. C.}
}
@article {3325,
	title = {Collagen surface modified poly(ε-caprolactone) scaffolds with improved hydrophilicity and cell adhesion properties},
	journal = {Materials Letters},
	volume = {134},
	year = {2014},
	note = {Export Date: 21 November 2014},
	month = {2014},
	pages = {263 - 267},
	abstract = {Poly(ε-caprolactone) (PCL)/collagen scaffolds were produced using a four-step procedure comprising (i) the fabrication of PCL scaffolds through an additive bioextrusion system, (ii) the PCL surface modification using a plasma treatment, (iii) the acrylic acid (AAc) grafting by ultraviolet (UV) polymerization, and (iv) the immobilization of collagen into the scaffold surface through the carbodiimide chemistry. This procedure allowed the quick fabrication of highly porous scaffolds with interconnected pores, well-defined internal architecture and improved cell adhesion properties. The immobilization of collagen into the PCL surface led to a significant enhancement in the hydrophilicity, while the biological tests showed a further improvement in the adhesion of fibroblast cells. These results indicate that the collagen surface modification is an effective strategy to render the hydrophobic nature of PCL and overcome the limited cell interaction of 3D PCL scaffolds. {\textcopyright} 2014 Elsevier B.V.},
	keywords = {BioExtruder, Collagen, poly(ε-caprolactone), Scaffold, Surface modification},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84905669651\&partnerID=40\&md5=ebb38981b89fc93e5599a7592a37e134},
	author = {Sousa, I. and Mendes, A. and Pereira, R.F. and B{\'a}rtolo, P.J.}
}
@article {3400,
	title = {Complexity-loss in fetal heart rate dynamics during labor as a potential biomarker of acidemia},
	journal = {Early Human Development},
	volume = {90},
	year = {2014},
	note = {Times Cited: 1},
	month = {2014},
	pages = {67-71},
	isbn = {0378-3782},
	url = {<Go to ISI>://WOS:000331023300012},
	author = {Costa, Madalena D. and Schnettler, William T. and Amorim-Costa, Celia and Bernardes, Joao and Costa, Antonia and Goldberger, Ary L. and Ayres-de-Campos, Diogo}
}
@article {3274,
	title = {Crucial CD8+ T-lymphocyte cytotoxic role in amphotericin B nanospheres efficacy against experimental visceral leishmaniasis},
	journal = {Nanomedicine: Nanotechnology, Biology, and Medicine},
	volume = {10},
	year = {2014},
	note = {Export Date: 21 November 2014},
	month = {2014},
	pages = {1021 - 1030},
	abstract = {This work aims to develop poly(d,l-lactide-co-glycolide) (PLGA)-nanospheres containing amphotericin B (AmB) with suitable physicochemical properties and anti-parasitic activity for visceral leishmaniasis (VL) therapy. When compared with unloaded-PLGA-nanospheres, the AmB-loaded PLGA-nanospheres displayed an increased particle size without affecting the polydispersity and its negative surface charge. AmB stability in the PLGA-nanospheres was \&gt;90\% over 60-days at 30{\textdegree}C. The AmB-PLGA-nanospheres demonstrated significant in vitro and in vivo efficacy and preferential accumulation in the visceral organs. In addition, an immune-modulatory effect was observed in mice treated with AmB-PLGA-nanospheres, correlating with improved treatment efficacy. The in vitro cytotoxic response of the T-lymphocytes revealed that AmB-PLGA-nanospheres efficacy against VL infection was strictly due to the action of CD8+- but not CD4+-T lymphocytes. Overall, we demonstrate a crucial role for CD8+ cytotoxic T lymphocytes in the efficacy of AmB-PLGA nanospheres, which could represent a potent and affordable alternative for VL therapy. From the Clinical Editor: This study demonstrates a crucial role for CD8+ T lymphocytes in eliminating visceral leishmaniasis in a murine model by enhancing the cytotoxic efficacy of CD8+ T-cells via amphotericin-B-PLGA nanospheres, paving a way to a unique, potentially more potent and cost-effective therapeutic strategy. {\textcopyright} 2014 Elsevier Inc.},
	keywords = {Amphotericin B, Immune-modulation, Poly(d,l-lactide-co-glycolide) nanospheres, Visceral leishmaniasis},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84903548865\&partnerID=40\&md5=2258c0fa01cf6df10638a16d9368bed6},
	author = {Costa Lima, S.A. and Silvestre, R. and Barros, D. and Cunha, J. and Baltazar, M.T. and Dinis-Oliveira, R.J. and Cordeiro-da-Silva, A.}
}
@article {3312,
	title = {Development and evaluation of an algorithm for computer analysis of maternal heart rate during labor},
	journal = {Computers in Biology and Medicine},
	volume = {49},
	year = {2014},
	note = {Export Date: 21 November 2014},
	month = {2014},
	pages = {30 - 35},
	abstract = {Background: Maternal heart rate (MHR) recordings are morphologically similar and sometimes coincident with fetal heart rate (FHR) recordings and may be useful for maternal-fetal monitoring if appropriately interpreted. However, similarly to FHR, visual interpretation of MHR features may be poorly reproducible. Methods: A computer algorithm for on-line MHR analysis was developed based on a previously existing version for FHR analysis. Inter-observer and computer-observer agreement and reliability were assessed in 40 one-hour recordings obtained from 20 women during the last 2. h of labor. Agreement and reliability were evaluated for the detection of basal MHR, long-term variability (LTV), accelerations and decelerations, using proportions of agreement (PA) and Kappa statistic (K), with 95\% confidence intervals (95\% CI). Changes in MHR characteristics between the first and the second hour of the tracings were also evaluated. Results: There was a statistically significant inter-observer and computer-observer agreement and reliability in estimation of basal MHR, accelerations, decelerations and LTV, with PA values ranging from 0.72 (95\% CI: 0.62-0.79) to 1.00 (95\% CI: 0.99-1.00), and K values ranging from 0.44 (95\% CI: 0.28-0.60) to 0.89 (95\% CI: 0.82-0.96). Moreover, basal MHR, number of accelerations and LTV were significantly higher in the last hour of labor, when compared to the initial hour. Discussion: The developed algorithm for on-line computer analysis of MHR recordings provided good to excellent computer-observer agreement and reliability. Moreover, it allowed an objective detection of MHR changes associated with labor progression, providing more information about the interpretation of maternal-fetal monitoring during labor. {\textcopyright} 2014 Elsevier Ltd.},
	keywords = {Agreement, Cardiotocography, computer analysis, Fetal heart rate, Maternal heart rate, reliability},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84897934596\&partnerID=40\&md5=95b314c6374a68fedb313594f59fdcce},
	author = {Pinto, P. and Bernardes, J. and Costa-Santos, C. and Amorim-Costa, C. and Silva, M. and Ayres-de-Campos, D.}
}
@article {3409,
	title = {Differences between external and internal fetal heart rate monitoring during the second stage of labor: a prospective observational study},
	journal = {Journal of Perinatal Medicine},
	volume = {42},
	year = {2014},
	month = {2014},
	pages = {493-498},
	url = {<Go to ISI>://WOS:000338934800012},
	author = {Nunes, Ines and Ayres-de-Campos, Diogo and Costa-Santos, Cristina and Bernardes, Joao}
}
@article {3298,
	title = {Effect of cell density on mesenchymal stem cells aggregation in RGD-alginate 3D matrices under osteoinductive conditions},
	journal = {Macromolecular Bioscience},
	volume = {14},
	year = {2014},
	note = {Cited By (since 1996):1Export Date: 21 November 2014},
	month = {2014},
	pages = {759 - 771},
	abstract = {Cellular activities in 3D are differentially affected by several matrix-intrinsic and extrinsic factors. This study highlights the relevance of optimizing initial cell densities when establishing 3D cultures for specific applications. Independently of the entrapping density, MSCs cultured within RGD-alginate hydrogels showed steady-state levels of metabolic activity and were in a nearly non-proliferative state, but recovered "normal" activity levels when retrieved from 3D matrices and re-cultured as monolayers. Importantly, high-densities promoted the establishment of cell-cell contacts with formation of multicellular clusters stabilized by endogenous ECM, and also stimulated MSCs osteogenic differentiation. These MSC-ECM microtissues may be used as building blocks for tissue engineering. {\textcopyright} 2014 WILEY-VCH Verlag GmbH \& Co. KGaA, Weinheim.},
	keywords = {alginate hydrogels, encapsulation, Self-assembly, Tissue engineering},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84902536382\&partnerID=40\&md5=d6659c40247c561753aca566f938d788},
	author = {Maia, F.R. and Louren{\c c}o, A.H. and Granja, P.L. and Gon{\c c}alves, R.M. and Barrias, C.C.}
}
@article {3311,
	title = {The effect of hyaluronan-based delivery of stromal cell-derived factor-1 on the recruitment of MSCs in degenerating intervertebral discs},
	journal = {Biomaterials},
	volume = {35},
	year = {2014},
	note = {Export Date: 21 November 2014},
	month = {2014},
	pages = {8144 - 8153},
	abstract = {Intervertebral disc (IVD) degeneration is the leading cause of low back pain and disability in the active population. Transplantation of mesenchymal stem cells (MSCs) in a hydrogel carrier can induce regenerative effects in degenerated IVDs. Moreover, it was found that degenerative discs release chemoattractants effective in MSC recruitment. Based on these findings, we hypothesized that an injectable hydrogel that can enhance the number of migrated MSCs in the IVD and provide a suitable matrix for their survival and differentiation would be ideal. The purpose of this study was to evaluate the potential of a thermoreversible hyaluronan-poly(N-isopropylacrylamide) (HAP) hydrogel as chemoattractant delivery system to recruit human MSCs in degenerative IVDs. The results demonstrate that HAP hydrogels containing stromal cell derived factor-1 (SDF-1) significantly increased the number of MSCs migrating into nucleotomized discs compared with discs treated with only HAP or SDF-1 in solution. HAP hydrogels releasing SDF-1 enhanced both the number of recruited cells and their migration distance in the IVD tissue. Furthermore, this phenomenon was dependent on MSC donor age. In conclusion, HAP SDF-1 is effective for the recruitment of stem cells in the IVD, thus opening new possibilities for the development of regenerative therapies based on endogenous cell migration. {\textcopyright} 2014 Elsevier Ltd.},
	keywords = {Intervertebral disc, Mesenchymal Stem Cells, Recruitment, Stromal cell derived factor-1, Thermoreversible hyaluronan hydrogel},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84903746142\&partnerID=40\&md5=1366ab2e3399d0a363aab2e356bbdf96},
	author = {Pereira, C.L. and Gon{\c c}alves, R.M. and Peroglio, M. and Pattappa, G. and D{\textquoteright}Este, M. and Eglin, D. and Barbosa, M.A. and Alini, M. and Grad, S.}
}
@article {3403,
	title = {Engineering proteolytically-degradable artificial extracellular matrices},
	journal = {Progress in Polymer Science},
	volume = {39},
	year = {2014},
	note = {Times Cited: 0},
	month = {2014},
	pages = {2010-2029},
	isbn = {0079-6700},
	url = {<Go to ISI>://WOS:000347134000003},
	author = {Fonseca, Keila B. and Granja, Pedro L. and Barrias, Cristina C.}
}
@article {3287,
	title = {External uterine contractions signal analysis in relation to labor progression and dystocia},
	journal = {IFMBE Proceedings},
	volume = {41},
	year = {2014},
	note = {Export Date: 21 November 2014},
	month = {2014},
	pages = {555 - 558},
	abstract = {Labor dystocia is a major cause of operative delivery, which is associated with increased risks for both mother and fetus. We assessed linear and non-linear dynamics of external uterine contraction signals, in relation to labor progression and dystocia. Linear time domain, spectral and entropy methods were used to analyze external uterine contraction recordings obtained during the last two hours of labor, in 28 cases with normal and 27 cases with operative deliveries (forceps, vacuum or caesarean). Progression of labor was associated with a statistically significant increase in most linear time domain and spectral indices, both in normal and operative deliveries, whereas most entropy indices increased in normal deliveries, but did not change in operative deliveries. On the other hand, when compared with normal births, operative deliveries were associated with significantly increased entropy indices before the last hour of labor and significantly decreased (a probably associated) sympatho-vagal balance in the last hour of labor. Linear and non-linear analysis of external uterine contraction recordings may provide useful physiopathological and clinical information on the progression of labor and the diagnosis of dystocia. {\textcopyright} Springer International Publishing Switzerland 2014.},
	keywords = {Cardiotocography, Dystocia, entropy, External uterine contractions, Spectral analysis},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84891293956\&partnerID=40\&md5=2d53a97f6000b704bf67435b61662c09},
	author = {Gon{\c c}alves, H. and Pinto, P. and Ayres-de-Campos, D. and Bernardes, J.}
}
@article {3399,
	title = {Extracellular matrix stiffness and composition jointly regulate the induction of malignant phenotypes in mammary epithelium},
	journal = {Nature Materials},
	volume = {13},
	year = {2014},
	note = {Times Cited: 6},
	month = {2014},
	pages = {970-978},
	isbn = {1476-1122},
	url = {<Go to ISI>://WOS:000342743100018},
	author = {Chaudhuri, Ovijit and Koshy, Sandeep T. and Branco da Cunha, Cristiana and Shin, Jae-Won and Verbeke, Catia S. and Allison, Kimberly H. and Mooney, David J.}
}
@article {3288,
	title = {Fetal behavioral dynamics in cephalic versus breech presentations},
	journal = {Developmental Psychobiology},
	volume = {56},
	year = {2014},
	note = {Export Date: 21 November 2014},
	pages = {1595 - 1600},
	abstract = {Differences in fetal neurodevelopment can have important implications on future perceptual and learning capabilities. The aim of this study was to assess autonomic nervous system and complexity dynamics in fetal heart rate (FHR) tracings from 27 singleton fetuses in cephalic or breech presentations, matched for gestational age (37+3-40+4 weeks), weight, gender and outcome. Breeches exhibited significantly higher mean FHR and LF/(MF+HF) ratio, as well as lower entropy, denoting increased sympatho-vagal balance and decreased complexity, consistent with the occurrence of more active fetal behavioral states. These findings suggest that there are neurodevelopment differences between fetuses in cephalic and breech presentation.},
	keywords = {Breech presentation, Development, entropy, Fetal behavior, Heart rate, Spectral analysis},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84907881885\&partnerID=40\&md5=efdb9069ff9f41b3b0d0e85ee6b9abb1},
	author = {Gon{\c c}alves, H. and Ayres-de-Campos, D. and Bernardes, J.}
}
@article {3405,
	title = {Fetal Behavioral Dynamics in Cephalic Versus Breech Presentations},
	journal = {Developmental Psychobiology},
	volume = {56},
	year = {2014},
	month = {2014},
	pages = {1595-1600},
	url = {<Go to ISI>://WOS:000345303400014},
	author = {Goncalves, Hernani and Ayres-de-Campos, Diogo and Bernardes, Joao}
}
@article {3395,
	title = {Fetal QRS detection and heart rate estimation: a wavelet-based approach},
	journal = {Physiological Measurement},
	volume = {35},
	year = {2014},
	month = {2014},
	pages = {1723-1735},
	url = {<Go to ISI>://WOS:000343765300014},
	author = {Almeida, Rute and Goncalves, Hernani and Bernardes, Joao and Rocha, Ana Paula}
}
@article {3328,
	title = {Ganciclovir-resistant cytomegalovirus infection in renal transplantation},
	journal = {Clinical Kidney Journal},
	volume = {7},
	year = {2014},
	note = {Export Date: 21 November 2014},
	month = {2014},
	pages = {210 - 213},
	keywords = {cytomegalovirus infection, ganciclovir resistance},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84897409543\&partnerID=40\&md5=af3bc36958fba967d5c9f98953d03572},
	author = {Vaz, R. and Barros, F. and Tavares, I. and Bustorff, M. and Ferreira, I. and Pestana, M.}
}
@article {3305,
	title = {Human umbilical cord tissue-derived mesenchymal stromal cells attenuate remodeling after myocardial infarction by proangiogenic, antiapoptotic, and endogenous cell-activation mechanisms},
	journal = {Stem Cell Research and Therapy},
	volume = {5},
	year = {2014},
	note = {Cited By (since 1996):2Export Date: 21 November 2014},
	month = {2014},
	abstract = {Introduction. Among the plethora of cells under investigation to restore a functional myocardium, mesenchymal stromal cells (MSCs) have been granted considerable interest. However, whereas the beneficial effects of bone marrow MSCs (BM-MSCs) in the context of the diseased heart are widely reported, data are still scarce on MSCs from the umbilical cord matrix (UCM-MSCs). Herein we report on the effect of UCM-MSC transplantation to the infarcted murine heart, seconded by the dissection of the molecular mechanisms at play. Methods. Human umbilical cord tissue-derived MSCs (UCX{\textregistered}), obtained by using a proprietary technology developed by ECBio, were delivered via intramyocardial injection to C57BL/6 females subjected to permanent ligation of the left descending coronary artery. Moreover, medium produced by cultured UCX{\textregistered} preconditioned under normoxia (CM) or hypoxia (CMH) was collected for subsequent in vitro assays. Results: Evaluation of the effects upon intramyocardial transplantation shows that UCX{\textregistered} preserved cardiac function and attenuated cardiac remodeling subsequent to myocardial infarction (MI). UCX{\textregistered} further led to increased capillary density and decreased apoptosis in the injured tissue. In vitro, UCX{\textregistered}-conditioned medium displayed (a) proangiogenic activity by promoting the formation of capillary-like structures by human umbilical vein endothelial cells (HUVECs), and (b) antiapoptotic activity in HL-1 cardiomyocytes subjected to hypoxia. Moreover, in adult murine cardiac Sca- 1{\textsection}ssup{\textsection}+{\textsection}esup{\textsection} progenitor cells (CPCs), conditioned medium enhanced mitogenic activity while activating a gene program characteristic of cardiomyogenic differentiation. Conclusions: UCX{\textregistered} preserve cardiac function after intramyocardial transplantation in a MI murine model. The cardioprotective effects of UCX{\textregistered} were attributed to paracrine mechanisms that appear to enhance angiogenesis, limit the extent of the apoptosis, augment proliferation, and activate a pool of resident CPCs. Overall, these results suggest that UCX{\textregistered} should be considered an alternative cell source when designing new therapeutic approaches to treat MI. {\textcopyright} 2014 Nascimento et al.; licensee BioMed Central Ltd.},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84896713037\&partnerID=40\&md5=22fdca81d834ec78c8196552c3d250ae},
	author = {Nascimento, D.S. and Mosqueira, D. and Sousa, L.M. and Teixeira, M. and Filipe, M. and Resende, TP and Ara{\'u}jo, A.F. and Valente, M. and Almeida, J. and Martins, J.P. and Santos, J.M. and B{\'a}rcia, R.N. and Cruz, P. and Cruz, H. and Pinto-Do-{\'O}, P.}
}
@article {3296,
	title = {Hydrogel depots for local co-delivery of osteoinductive peptides and mesenchymal stem cells},
	journal = {Journal of Controlled Release},
	volume = {189},
	year = {2014},
	note = {Export Date: 21 November 2014},
	month = {2014},
	pages = {158 - 168},
	abstract = {The outcome of cell-based therapies can benefit from carefully designed cell carriers. A multifunctional injectable vehicle for the co-delivery of human mesenchymal stem cells (hMSCs) and osteoinductive peptides is proposed, to specifically direct hMSCs osteogenic differentiation. The osteogenic growth peptide (OGP) inspired the design of two peptides, where the bioactive portion of OGP was flanked by a protease-sensitive linker, or its scrambled sequence, to provide faster and slower release rates, respectively. Peptides were fully characterized and chemically grafted to alginate. Both OGP analogs released bioactive fragments in vitro, at different kinetics, which stimulated hMSCs proliferation and osteogenesis. hMSCs-laden OGP-alginate hydrogels were tested at an ectopic site in a xenograft mouse model. After 4 weeks, OGP-alginate hydrogels were more degraded and colonized by vascularized connective tissue than the control (without OGP). hMSCs were able to proliferate, migrate outward the hydrogels, produce endogenous extracellular matrix and mineralize it. Moreover, OGP-groups stimulated hMSCs osteogenesis, as compared with the control. Overall, the ability of the proposed platform to direct the fate of transplanted hMSCs in loco was demonstrated, and OGP-releasing hydrogels emerged as a potentially useful system to promote bone regeneration. {\textcopyright} 2014 Elsevier B.V.},
	keywords = {Bone Regeneration, Co-delivery systems, Guided differentiation, Injectable alginate hydrogels, Mesenchymal Stem Cells, Osteoinductive peptides},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84904318888\&partnerID=40\&md5=5f671d3584c3b7fc785ffaf40c2f0b1d},
	author = {Maia, F.R. and Barbosa, M. and Gomes, D.B. and Vale, N. and Gomes, P. and Granja, P.L. and Barrias, C.C.}
}
@booklet {3260,
	title = {Impact of 3-D printed PLA- and chitosan-based scaffolds on human monocyte/macrophage responses: Unraveling the effect of 3-D structures on inflammation},
	howpublished = {Acta Biomaterialia},
	volume = {10},
	year = {2014},
	note = {Cited By (since 1996):2Export Date: 21 November 2014},
	month = {2014},
	pages = {613 - 622},
	abstract = {Recent studies have pointed towards a decisive role of inflammation in triggering tissue repair and regeneration, while at the same time it is accepted that an exacerbated inflammatory response may lead to rejection of an implant. Within this context, understanding and having the capacity to regulate the inflammatory response elicited by 3-D scaffolds aimed for tissue regeneration is crucial. This work reports on the analysis of the cytokine profile of human monocytes/macrophages in contact with biodegradable 3-D scaffolds with different surface properties, architecture and controlled pore geometry, fabricated by 3-D printing technology. Fabrication processes were optimized to create four different 3-D platforms based on polylactic acid (PLA), PLA/calcium phosphate glass or chitosan. Cytokine secretion and cell morphology of human peripheral blood monocytes allowed to differentiate on the different matrices were analyzed. While all scaffolds supported monocyte/macrophage adhesion and stimulated cytokine production, striking differences between PLA-based and chitosan scaffolds were found, with chitosan eliciting increased secretion of tumor necrosis factor (TNF)-α, while PLA-based scaffolds induced higher production of interleukin (IL)-6, IL-12/23 and IL-10. Even though the material itself induced the biggest differences, the scaffold geometry also impacted on TNF-α and IL-12/23 production, with chitosan scaffolds having larger pores and wider angles leading to a higher secretion of these pro-inflammatory cytokines. These findings strengthen the appropriateness of these 3-D platforms to study modulation of macrophage responses by specific parameters (chemistry, topography, scaffold architecture). {\textcopyright} 2013 Acta Materialia Inc.},
	keywords = {3-D scaffolds, Human macrophages, Inflammation, Rapid prototyping, Tissue engineering},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84896505907\&partnerID=40\&md5=948f87b684be751bc6eb444e28ce6025},
	author = {Almeida, C.R. and Serra, T. and Oliveira, M.I. and Planell, J.A. and Barbosa, M.A. and Navarro, M.}
}
@article {3396,
	title = {Impact of the introduction of fetal central monitoring on hospital expenses with cardiotocographic paper},
	journal = {Journal of Obstetrics and Gynaecology},
	volume = {34},
	year = {2014},
	month = {2014},
	pages = {82-84},
	url = {<Go to ISI>://WOS:000328947300020},
	author = {Amorim-Costa, C. and Ayres-de-Campos, D. and Costa-Santos, C. and Bernardes, J.}
}
@article {3265,
	title = {Influence of nanohydroxyapatite surface properties on Staphylococcus epidermidis biofilm formation},
	journal = {Journal of Biomaterials Applications},
	volume = {28},
	year = {2014},
	note = {Cited By (since 1996):2Export Date: 21 November 2014},
	month = {2014},
	pages = {1325 - 1335},
	abstract = {Nanohydroxyapatite (nanoHA), due to its chemical properties, has appeared as an exceptionally promising bioceramic to be used as bone regeneration material. Staphylococcus epidermidis have emerged as major nosocomial pathogens associated with infections of implanted medical devices. In this work, the purpose was to study the influence of the nanoHA surface characteristics on S. epidermidis RP62A biofilm formation. Therefore, two different initial inoculum concentrations (Ci) were used in order to check if these would affect the biofilm formed on the nanoHA surfaces. Biofilm formation was followed by the enumeration of cultivable cells and by scanning electron microscopy. Surface topography, contact angle, total surface area and porosimetry of the biomaterials were studied and correlated with the biofilm data. The surface of nanoHA sintered at 830 (nanoHA830) showed to be more resistant to S. epidermidis attachment and accumulation than that of nanoHA sintered at 1000 (nanoHA1000). The biofilm formed on nanoHA830 presented differences in terms of structure, surface coverage and EPS production when compared to the one formed on nanoHA1000 surface. It was observed that topography and surface area of nanoHA surfaces had influence on the bacterial attachment and accumulation. Ci influenced bacteria attachment and accumulation on nanoHA surfaces over time. The choice of the initial inoculum concentration was relevant proving to have an effect on the extent of adherence thus being a critical point for human health if these materials are used in implantable devices. This study showed that the initial inoculum concentration and surface material properties determine the rate of microbial attachment to substrata and consequently are related to biofilm-associated infections in biomaterials. {\textcopyright} The Author(s) 2013 Reprints and permissions: sagepub.co.uk/journalsPermissions.nav.},
	keywords = {biofilm formation, biomaterial roughness, biomaterial surface area, Inoculum concentration, Nanohydroxyapatite},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84890640286\&partnerID=40\&md5=0f7d5eb37db34b3d0a1e4fb334846340},
	author = {Barros, J. and Grenho, L. and Manuel, C.M. and Ferreira, C. and Melo, L. and Nunes, O.C. and Monteiro, F.J. and Ferraz, M.P.}
}
@article {3268,
	title = {Influence of the stiffness of three-dimensional alginate/collagen-I interpenetrating networks on fibroblast biology},
	journal = {Biomaterials},
	volume = {35},
	year = {2014},
	note = {Export Date: 21 November 2014},
	month = {2014},
	pages = {8927 - 8936},
	abstract = {Wound dressing biomaterials are increasingly being designed to incorporate bioactive molecules to promote healing, but the impact of matrix mechanical properties on the biology of resident cells orchestrating skin repair and regeneration remains to be fully understood. This study investigated whether tuning the stiffness of a model wound dressing biomaterial could control the behavior of dermal fibroblasts. Fully interpenetrating networks (IPNs) of collagen-I and alginate were fabricated to enable gel stiffness to be tuned independently of gel architecture, polymer concentration or adhesion ligand density. Three-dimensional cultures of dermal fibroblasts encapsulated within matrices of different stiffness were shown to promote dramatically different cell morphologies, and enhanced stiffness resulted in upregulation of key-mediators of inflammation such as IL-10 and COX-2. These findings suggest that simply modulating the matrix mechanical properties of a given wound dressing biomaterial deposited at the wound site could regulate the progression of wound healing. {\textcopyright} 2014 Elsevier Ltd.},
	keywords = {ECM (extracellular matrix), Inflammation, Interpenetrating networks (IPNs), Mechanical properties, Wound dressing biomaterial, Wound healing},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84905723265\&partnerID=40\&md5=dc192cf150d9176075beca26ae5ded3f},
	author = {Branco da Cunha, C. and Klumpers, D.D. and Li, W.A. and Koshy, S.T. and Weaver, J.C. and Chaudhuri, O. and Granja, P.L. and Mooney, D.J.}
}
@article {3266,
	title = {Injectable alginate hydrogels for cell delivery in tissue engineering},
	journal = {Acta Biomaterialia},
	volume = {10},
	year = {2014},
	note = {Export Date: 21 November 2014},
	month = {2014},
	pages = {1646 - 1662},
	abstract = {Alginate hydrogels are extremely versatile and adaptable biomaterials, with great potential for use in biomedical applications. Their extracellular matrix-like features have been key factors for their choice as vehicles for cell delivery strategies aimed at tissue regeneration. A variety of strategies to decorate them with biofunctional moieties and to modulate their biophysical properties have been developed recently, which further allow their tailoring to the desired application. Additionally, their potential use as injectable materials offers several advantages over preformed scaffold-based approaches, namely: Easy incorporation of therapeutic agents, such as cells, under mild conditions; minimally invasive local delivery; and high contourability, which is essential for filling in irregular defects. Alginate hydrogels have already been explored as cell delivery systems to enhance regeneration in different tissues and organs. Here, the in vitro and in vivo potential of injectable alginate hydrogels to deliver cells in a targeted fashion is reviewed. In each example, the selected crosslinking approach, the cell type, the target tissue and the main findings of the study are highlighted. {\textcopyright} 2013 Acta Materialia Inc.},
	keywords = {Alginate, Cell delivery, Injectable, Regeneration, Tissue engineering},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84896403229\&partnerID=40\&md5=fd56573baeefa91edfc45ba61cf0573a},
	author = {Bidarra, S.J. and Barrias, C.C. and Granja, P.L.}
}
@article {3280,
	title = {Injectable MMP-sensitive alginate hydrogels as hMSC delivery systems},
	journal = {Biomacromolecules},
	volume = {15},
	year = {2014},
	note = {Cited By (since 1996):3Export Date: 21 November 2014},
	month = {2014},
	pages = {380 - 390},
	abstract = {Hydrogels with the potential to provide minimally invasive cell delivery represent a powerful tool for tissue-regeneration therapies. In this context, entrapped cells should be able to escape the matrix becoming more available to actively participate in the healing process. Here, we analyzed the performance of proteolytically degradable alginate hydrogels as vehicles for human mesenchymal stem cells (hMSC) transplantation. Alginate was modified with the matrix metalloproteinase (MMP)-sensitive peptide Pro-Val-Gly-Leu-Iso-Gly (PVGLIG), which did not promote dendritic cell maturation in vitro, neither free nor conjugated to alginate chains, indicating low immunogenicity. hMSC were entrapped within MMP-sensitive and MMP-insensitive alginate hydrogels, both containing cell-adhesion RGD peptides. Softer (2 wt \% alginate) and stiffer (4 wt \% alginate) matrices were tested. When embedded in a Matrigel layer, hMSC-laden MMP-sensitive alginate hydrogels promoted more extensive outward cell migration and invasion into the tissue mimic. In vivo, after 4 weeks of subcutaneous implantation in a xenograft mouse model, hMSC-laden MMP-sensitive alginate hydrogels showed higher degradation and host tissue invasion than their MMP-insensitive equivalents. In both cases, softer matrices degraded faster than stiffer ones. The transplanted hMSC were able to produce their own collagenous extracellular matrix, and were located not only inside the hydrogels, but also outside, integrated in the host tissue. In summary, injectable MMP-sensitive alginate hydrogels can act as localized depots of cells and confer protection to transplanted cells while facilitating tissue regeneration. {\textcopyright} 2013 American Chemical Society.},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84892606344\&partnerID=40\&md5=835c11a6460fa62bc6da4a189fd06b25},
	author = {Fonseca, K.B. and Gomes, D.B. and Lee, K. and Santos, S.G. and Sousa, A. and Silva, E.A. and Mooney, D.J. and Granja, P.L. and Barrias, C.C.}
}
@article {3397,
	title = {Kinetochore motors drive congression of peripheral polar chromosomes by overcoming random arm-ejection forces},
	journal = {Nature Cell Biology},
	volume = {16},
	year = {2014},
	note = {Times Cited: 0},
	month = {2014},
	pages = {1249-U259},
	isbn = {1465-7392},
	url = {<Go to ISI>://WOS:000345777300015},
	author = {Barisic, Marin and Aguiar, Paulo and Geley, Stephan and Maiato, Helder}
}
@article {3270,
	title = {Macrophages stimulate gastric and colorectal cancer invasion through EGFR Y 1086, c-Src, Erk1/2 and Akt phosphorylation and smallGTPase activity},
	journal = {Oncogene},
	volume = {33},
	year = {2014},
	note = {Cited By (since 1996):2Export Date: 21 November 2014},
	month = {2014},
	pages = {2123 - 2133},
	abstract = {The interactions between cancer cells and their microenvironment are crucial for malignant progression, as they modulate invasion-related activities. Tumor-associated macrophages are generally considered allies in the process of tumor progression in several types of cancer, although their role on gastric and colorectal carcinomas is still poorly understood. In this report, we studied the influence of primary human macrophages on gastric and colorectal cancer cells, considering invasion, motility/migration, proteolysis and activated intracellular signaling pathways. We demonstrated that macrophages stimulate cancer cell invasion, motility and migration, and that these effects depend on matrix metalloproteinase (MMP) activity and on the activation of epidermal growth factor receptor (EGFR) (at the residue Y 1086), PLC-γ (phospholipase C-gamma) and Gab1 (GRB2-associated binding protein-1), as evidenced by siRNA (small interference RNA) experiments. Epidermal growth factor (EGF)-immunodepletion impaired macrophage-mediated cancer cell invasion and motility, suggesting that EGF is the pro-invasive and pro-motile factor produced by macrophages. Macrophages also induced gastric and colorectal cancer cell phosphorylation of Akt, c-Src and ERK1/2, and led to an increase of RhoA and Cdc42 activity. Interestingly, whereas macrophage-mediated cancer cell c-Src and ERK1/2 phosphorylation occurred downstream EGFR activation, Akt phosphorylation seems to be a parallel event, taking place in an EGFR-independent manner. The involvement of EGF, EGFR-downstream signaling partners and MMPs in macrophage-mediated invasion provides novel insights into the molecular crosstalk established between cancer cells and macrophages, opening new perspectives for the design of new and more efficient therapeutic strategies to counteract cancer cell invasion. {\textcopyright} 2014 Macmillan Publishers Limited.},
	keywords = {cancer cell invasion, colon cancer, Gastric cancer, invasion-related signaling pathways, Macrophages, tumor microenvironment},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84899425243\&partnerID=40\&md5=beff5192ff42940c75fef8b48ebd3ae7},
	author = {Cardoso, A.P. and Pinto, M.L. and Pinto, A.T. and Oliveira, M.I. and Pinto, M.T. and Gon{\c c}alves, R. and Relvas, J.B. and Figueiredo, C. and Seruca, R. and Mantovani, A. and Mareel, M. and Barbosa, M.A. and Oliveira, M.J.}
}
@article {3304,
	title = {Mad2 checkpoint gene silencing using epidermal growth factor receptor-targeted chitosan nanoparticles in non-small cell lung cancer model},
	journal = {Molecular Pharmaceutics},
	volume = {11},
	year = {2014},
	note = {Export Date: 21 November 2014},
	month = {2014},
	pages = {3515 - 3527},
	abstract = {RNA interference has emerged as a powerful strategy in cancer therapy because it allows silencing of specific genes associated with tumor progression and resistance. Mad2 is an essential mitotic checkpoint component required for accurate chromosome segregation during mitosis, and its complete abolition leads to cell death. We have developed an epidermal growth factor receptor (EGFR)-targeted chitosan system for silencing the Mad2 gene as a strategy to efficiently induce cell death in EGFR overexpressing human A549 non-small cell lung cancer cells. Control and EGFR-targeted chitosan nanoparticles loaded with small interfering RNAs (siRNAs) against Mad2 were formulated and characterized for size, charge, morphology, and encapsulation efficiency. Qualitative and quantitative intracellular uptake studies by confocal imaging and flow cytometry, respectively, showed time-dependent enhanced and selective intracellular internalization of EGFR-targeted nanoparticles compared to nontargeted system. Targeted nanoparticles showed nearly complete depletion of Mad2 expression in A549 cells contrasting with the partial depletion in the nontargeted system. Accordingly, Mad2-silencing-induced apoptotic cell death was confirmed by cytotoxicity assay and flow cytometry. Our results demonstrate that EGFR-targeted chitosan loaded with Mad2 siRNAs is a potent delivery system for selective killing of cancer cells.},
	keywords = {chitosan nanoparticles, Epidermal growth factor receptor, Mad2 gene, non-small cell lung cancer, RNA interference, tumor targeting},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84908009342\&partnerID=40\&md5=bc0130ca0bcdb576b7de6801c3517e93},
	author = {Nascimento, A.V. and Singh, A. and Bousbaa, H. and Ferreira, D. and Sarmento, B. and Amiji, M.M.}
}
@article {3297,
	title = {Matrix-driven formation of mesenchymal stem cell-extracellular matrix microtissues on soft alginate hydrogels},
	journal = {Acta Biomaterialia},
	volume = {10},
	year = {2014},
	note = {Cited By (since 1996):2Export Date: 21 November 2014},
	month = {2014},
	pages = {3197 - 3208},
	abstract = {Mesenchymal stem cells (MSCs) can be made to rearrange into microtissues in response to specific matrix cues, a process that depends on a balance between cell-matrix and cell-cell interactions. The effect of such cues, and especially their interplay, is still not fully understood, particularly in three-dimensional (3-D) systems. Here, the behaviour of human MSCs cultured within hydrogel matrices with tailored stiffness and composition was evaluated. MSC aggregation occurred only in more compliant matrices (G' <= 120 Pa), when compared to stiffer ones, both in the presence and in the absence of matrix-bound arginine-glycine-aspartic acid cell-adhesion ligands (RGD; 0, 100 and 200 μM). Fibronectin assembly stabilized cell-cell contacts within aggregates, even in non-adhesive matrices. However, MSCs were able to substantially contract the artificial matrix only when RGD was present. Moreover, compliant matrices facilitated cell proliferation and provided an environment conducive for MSC osteogenic differentiation, even without RGD. Cell interactions with the original matrix became less important as time progressed, while the de novo-produced extracellular matrix became a more critical determinant of cell fate. These data provide further insights into the mechanisms by which MSCs sense their microenvironment to organize into tissues, and provide new clues to the design of cell-instructive 3-D matrices. {\textcopyright} 2014 Published by Elsevier Ltd. on behalf of Acta Materialia Inc.},
	keywords = {cell aggregation, Cell traction, Cell-matrix interactions, Hydrogels, Viscoelastic properties},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84901785690\&partnerID=40\&md5=3d3a11adce17a7f1be2a2bb5d4e51089},
	author = {Maia, F.R. and Fonseca, K.B. and Rodrigues, G. and Granja, P.L. and Barrias, C.C.}
}
@article {3422,
	title = {A Multicompartment Holder for Spinner Flasks Improves Expansion and Osteogenic Differentiation of Mesenchymal Stem Cells in Three-Dimensional Scaffolds},
	journal = {Tissue Engineering Part C-Methods},
	volume = {20},
	year = {2014},
	month = {2014},
	pages = {984-993},
	url = {<Go to ISI>://WOS:000345269800006},
	author = {Teixeira, Graciosa Q. and Barrias, Cristina C. and Lourenco, Ana H. and Goncalves, Raquel M.}
}
@article {3291,
	title = {Neonatal human dermal fibroblasts immobilized in RGD-alginate induce angiogenesis},
	journal = {Cell Transplantation},
	volume = {23},
	year = {2014},
	note = {Export Date: 21 November 2014},
	month = {2014},
	pages = {945 - 957},
	abstract = {Promoting angiogenesis in a damaged tissue is a major challenge for tissue regeneration. Recent findings in tissue engineering suggest that fibroblasts (FBs) play an important role in orchestrating the angiogenic process. Fibroblasts maintain the structural integrity of connective tissue by continuously secreting growth factors and extracellular matrix precursors, which are essential for endothelial cell (EC) adhesion and spreading, thus playing a crucial role in angiogenesis. We hypothesized that FBs immobilized in alginate gels grafted with the RGD peptidic sequence could influence the recruitment of ECs to improve vascularization. In this work, the modulation of immobilized human FBs within the 3D synthetic extracellular matrix was assessed. Experiments using cocultures of ECs and FBs in indirect contact as well as angiogenic assays were performed to assess the influence of FBs immobilized in RGD-alginate in ECs{\textquoteright} viability, stabilization, sprouting, and assembly into capillary-like structures. This study demonstrates the ability of FBs immobilized within RGD-alginate microspheres to modulate and support capillary-like structures{\textquoteright} assembly. These findings indicate that the microenvironment created by these stromal cells in the scaffold modulates capillary morphogenesis, thus stimulating angiogenesis in situ and can potentially be used in regenerative medicine in clinical scenarios where vascularization is essential. {\textcopyright} 2014 Cognizant Comm. Corp.},
	keywords = {Alginate, angiogenesis, Endothelial cells (ECs), Fibroblasts (FBs), RGD peptide: Injectable biomaterials},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84905231059\&partnerID=40\&md5=8ca92aea469585cbf168cb6fbad9d3ad},
	author = {Guerreiro, S.G. and Oliveira, M.J. and Barbosa, M.A. and Soares, R. and Granja, P.L.}
}
@article {3418,
	title = {A PEX7-Centered Perspective on the Peroxisomal Targeting Signal Type 2-Mediated Protein Import Pathway},
	journal = {Molecular and Cellular Biology},
	volume = {34},
	year = {2014},
	note = {Times Cited: 1Brites, Pedro/K-4231-2013; Azevedo, Jorge/A-4113-2008; Francisco, Tania/K-5545-2013; Rodrigues, Tony/K-1141-2014
Brites, Pedro/0000-0003-1754-1543; Azevedo, Jorge/0000-0001-7714-5302; Francisco, Tania/0000-0003-3571-5164; Rodrigues, Tony/0000-0003-2311-8258
},
	month = {2014},
	pages = {2917-2928},
	isbn = {0270-7306},
	url = {<Go to ISI>://WOS:000338874700012},
	author = {Rodrigues, Tony A. and Alencastre, Ines S. and Francisco, Tania and Brites, Pedro and Fransen, Marc and Grou, Claudia P. and Azevedo, Jorge E.}
}
@article {3316,
	title = {Poly(trimethylene carbonate-co-ε-caprolactone) promotes axonal growth},
	journal = {PLoS ONE},
	volume = {9},
	year = {2014},
	note = {Export Date: 21 November 2014},
	month = {2014},
	abstract = {Mammalian central nervous system (CNS) neurons do not regenerate after injury due to the inhibitory environment formed by the glial scar, largely constituted by myelin debris. The use of biomaterials to bridge the lesion area and the creation of an environment favoring axonal regeneration is an appealing approach, currently under investigation. This work aimed at assessing the suitability of three candidate polymers - poly(ε-caprolactone), poly(trimethylene carbonate-co-ε-caprolactone) (P(TMC-CL)) (11:89 mol\%) and poly(trimethylene carbonate) - with the final goal of using these materials in the development of conduits to promote spinal cord regeneration. Poly(L-lysine) (PLL) coated polymeric films were tested for neuronal cell adhesion and neurite outgrowth. At similar PLL film area coverage conditions, neuronal polarization and axonal elongation was significantly higher on P(TMC-CL) films. Furthermore, cortical neurons cultured on P(TMC-CL) were able to extend neurites even when seeded onto myelin. This effect was found to be mediated by the glycogen synthase kinase 3β (GSK3β) signaling pathway with impact on the collapsin response mediator protein 4 (CRMP4), suggesting that besides surface topography, nanomechanical properties were implicated in this process. The obtained results indicate P(TMC-CL) as a promising material for CNS regenerative applications as it promotes axonal growth, overcoming myelin inhibition. {\textcopyright} 2014 Rocha et al.},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84896121626\&partnerID=40\&md5=8f29642bf67ec86cf774379d7d92e7b0},
	author = {Rocha, D.N. and Brites, P. and Fonseca, C. and P{\^e}go, A.P.}
}
@article {3277,
	title = {Production, characterization and biocompatibility of marine collagen matrices from an alternative and sustainable source: The sea urchin Paracentrotus lividus},
	journal = {Marine Drugs},
	volume = {12},
	year = {2014},
	note = {Export Date: 21 November 2014},
	month = {2014},
	pages = {4912 - 4933},
	abstract = {Collagen has become a key-molecule in cell culture studies and in the tissue engineering field. Industrially, the principal sources of collagen are calf skin and bones which, however, could be associated to risks of serious disease transmission. In fact, collagen derived from alternative and riskless sources is required, and marine organisms are among the safest and recently exploited ones. Sea urchins possess a circular area of soft tissue surrounding the mouth, the peristomial membrane (PM), mainly composed by mammalian-like collagen. The PM of the edible sea urchin Paracentrotus lividus therefore represents a potential unexploited collagen source, easily obtainable as a food industry waste product. Our results demonstrate that it is possible to extract native collagen fibrils from the PM and produce suitable substrates for in vitro system. The obtained matrices appear as a homogeneous fibrillar network (mean fibril diameter 30-400 nm and < 2 μm) and display remarkable mechanical properties in term of stiffness (146 {\textpm} 48 MPa) and viscosity (60.98 {\textpm} 52.07 GPa{\textperiodcentered}s). In vitro tests with horse pbMSC show a good biocompatibility in terms of overall cell growth. The obtained results indicate that the sea urchin P. lividus can be a valuable low-cost collagen source for mechanically resistant biomedical devices.},
	keywords = {Biocompatibility, Collagen matrix, Mesenchimal stromal cells, Native fibril, Sea urchin collagen, Tissue regeneration},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84908025685\&partnerID=40\&md5=58774d56d0d60e6bc725ae6ecacaa068},
	author = {Di Benedetto, C. and Barbaglio, A. and Martinello, T. and Alongi, V. and Fassini, D. and Cullor{\`a}, E. and Patruno, M. and Bonasoro, F. and Barbosa, M.A. and Carnevali, M.D.C. and Sugni, M.}
}
@article {3267,
	title = {Rescue of wild-type E-cadherin expression from nonsense-mutated cancer cells by a suppressor-tRNA},
	journal = {European Journal of Human Genetics},
	volume = {22},
	year = {2014},
	note = {Export Date: 21 November 2014},
	month = {2014},
	pages = {1085 - 1092},
	abstract = {Hereditary diffuse gastric cancer (HDGC) syndrome, although rare, is highly penetrant at an early age, and is severe and incurable because of ineffective screening tools and therapy. Approximately 45\% of HDGC families carry germline CDH1/E-cadherin alterations, 20\% of which are nonsense leading to premature protein truncation. Prophylactic gastrectomy is the only recommended approach for all asymptomatic CDH1 mutation carriers. Suppressor-tRNAs can replace premature stop codons (PTCs) with a cognate amino acid, inducing readthrough and generating full-length proteins. The use of suppressor-tRNAs in HDGC patients could therefore constitute a less invasive therapeutic option for nonsense mutation carriers, delaying the development of gastric cancer. Our analysis revealed that 23/108 (21.3\%) of E-cadherin-mutant families carried nonsense mutations that could be potentially corrected by eight suppressor-tRNAs, and arginine was the most frequently affected amino acid. Using site-directed mutagenesis, we developed an arginine suppressor-tRNA vector to correct one HDGC nonsense mutation. E-cadherin-deficient cell lines were transfected with plasmids carrying simultaneously the suppressor-tRNA and wild-type or mutant CDH1 mini-genes. RT-PCR, western blot, immunofluorescence, flow cytometry and proximity ligation assay (PLA) were used to establish the model, and monitor mRNA and protein expression and function recovery from CDH1 vectors. Cells expressing a CDH1 mini-gene, carrying a nonsense mutation and the suppressor-tRNA, recovered full-length E-cadherin expression and its correct localization and incorporation into the adhesion complex. This is the first demonstration of functional recovery of a mutated causative gene in hereditary cancer by cognate amino acid replacement with suppressor-tRNAs. Of the HDGC families, 21.3\% are candidates for correction with suppressor-tRNAs to potentially delay cancer onset. {\textcopyright} 2014 Macmillan Publishers Limited. All rights reserved.},
	keywords = {hereditary diffuse gastric cancer (HDGC), nonsense suppression, Premature termination codon (PTC), Suppressor-tRNA},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84906269658\&partnerID=40\&md5=2feed844660a13385857a7e5d4470a2b},
	author = {Bordeira-Carri{\c c}o, R. and Ferreira, D. and Mateus, D.D. and Pinheiro, H. and P{\^e}go, A.P. and Santos, M.A.S. and Oliveira, C.}
}
@article {3254,
	title = {Resveratrol as a Natural Anti-Tumor Necrosis Factor-alpha Molecule: Implications to Dendritic Cells and Their Crosstalk with Mesenchymal Stromal Cells},
	journal = {Plos One},
	volume = {9},
	year = {2014},
	month = {2014},
	url = {<Go to ISI>://WOS:000332839300122},
	author = {Silva, Andreia M. and Oliveira, Marta I. and Sette, Laura and Almeida, Catarina R. and Oliveira, Maria J. and Barbosa, Mario A. and Santos, Susana G.}
}
@article {3327,
	title = {Role of protein environment and bioactive polymer grafting in the S. epidermidis response to titanium alloy for biomedical applications},
	journal = {Materials Science and Engineering C},
	volume = {45},
	year = {2014},
	note = {Export Date: 21 November 2014},
	month = {2014},
	pages = {176 - 183},
	abstract = {Joint implant-related infections, namely by Staphylococci, are a worldwide problem, whose consequences are dramatic. Various methods are studied to fight against these infections. Here, the proposed solution consists in grafting a bioactive polymer on joint implant surfaces in order to allow the control of the interactions with the living system. In this study, sodium styrene sulfonate, bearing sulfonate groups, was grafted on the surface of titanium alloys. Scanning Electron Microscopy, colorimetric method, Fourier-transformed infrared spectroscopy and contact angle measurements were applied to characterize the surfaces. Bacterial adhesion studies were studied on poly(sodium styrene sulfonate) grafted Ti6Al4V and Ti6Al4V surfaces previously adsorbed by proteins involved in the bacteria adhesion process. Fibrinogen and fibronectin were demonstrated to increase staphylococcal adhesion on Ti6Al4V surfaces. Ti6Al4V grafted sodium styrene sulfonate surfaces inhibited the adhesion of Staphylococcus epidermidis in 37\% and 13\% on pre-adsorbed surfaces with fibrinogen and fibronectin, respectively. The mechanism of the observed inhibiting bacteria adhesion properties is related to the differences of proteic conformations induced by poly(sodium styrene sulfonate) grafting.},
	keywords = {Bacterial adhesion, Bioactive polymer, Poly(sodium styrene sulfonate) (polyNaSS), Protein adsorption, Surface modification, Titanium alloy},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84907482809\&partnerID=40\&md5=21d4fdd30e05852f6b8ce9a0dcf846cf},
	author = {Vasconcelos, D.M. and Falentin-Daudr{\'e}, C. and Blanquaert, D. and Thomas, D. and Granja, P.L. and Migonney, V.}
}
@article {3315,
	title = {Role of sparc in bone remodeling and cancer-related bone metastasis},
	journal = {Journal of Cellular Biochemistry},
	volume = {115},
	year = {2014},
	note = {Export Date: 21 November 2014},
	month = {2014},
	pages = {17 - 26},
	abstract = {There is a growing socioeconomic recognition that clinical bone diseases such as bone infections, bone tumors and osteoporotic bone loss mainly associated with ageing, are major issues in today{\textquoteright}s society. SPARC (secreted protein, acidic and rich in cysteine), a matricellular glycoprotein, may be a promising therapeutic target for preventing or treating bone-related diseases. In fact, SPARC is associated with tissue remodeling, repair, development, cell turnover, bone mineralization and may also participate in growth and progression of tumors, namely cancer-related bone metastasis. Yet, the function of SPARC in such biological processes is poorly understood and controversial. The main objective of this work is to review the current knowledge related to the activity of SPARC in bone remodeling, tumorigenesis, and bone metastasis. Progress in understanding SPARC biology may provide novel strategies for bone regeneration and the development of anti-angiogenic, anti-proliferative, or counter-adhesive treatments specifically against bone metastasis. {\textcopyright} 2013 Wiley Periodicals, Inc. {\textcopyright} 2013 Wiley Periodicals, Inc.},
	keywords = {BONE METASTASIS, bone remodeling, SPARC, TUMORIGENESIS},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84887856025\&partnerID=40\&md5=bcb4dc43db0bb9be75051f4493c74d3d},
	author = {Ribeiro, N. and Sousa, S.R. and Brekken, R.A. and Monteiro, F.J.}
}
@article {3285,
	title = {Selective albumin-binding surfaces modified with a thrombin-inhibiting peptide},
	journal = {Acta Biomaterialia},
	volume = {10},
	year = {2014},
	note = {Export Date: 21 November 2014},
	month = {2014},
	pages = {1227 - 1237},
	abstract = {Blood-contacting medical devices have been associated with severe clinical complications, such as thrombus formation, triggered by the activation of the coagulation cascade due to the adsorption of certain plasma proteins on the surface of biomaterials. Hence, the coating of such surfaces with antithrombotic agents has been used to increase biomaterial haemocompatibility. Biomaterial-induced clotting may also be decreased by albumin adsorption from blood plasma in a selective and reversible way, since this protein is not involved in the coagulation cascade. In this context, this paper reports that the immobilization of the thrombin inhibitor D-Phe-Pro-D-Arg-D-Thr-CONH 2 (fPrt) onto nanostructured surfaces induces selective and reversible adsorption of albumin, delaying the clotting time when compared to peptide-free surfaces. fPrt, synthesized with two glycine residues attached to the N-terminus (GGfPrt), was covalently immobilized onto self-assembled monolayers (SAMs) having different ratios of carboxylate-hexa(ethylene glycol)- and tri(ethylene glycol)-terminated thiols (EG6-COOH/EG3) that were specifically designed to control GGfPrt orientation, exposure and density at the molecular level. In solution, GGfPrt was able to inactivate the enzymatic activity of thrombin and to delay plasma clotting time in a concentration-dependent way. After surface immobilization, and independently of its concentration, GGfPrt lost its selectivity to thrombin and its capacity to inhibit thrombin enzymatic activity against the chromogenic substrate n-p-tosyl-Gly-Pro-Arg-p-nitroanilide. Nevertheless, surfaces with low concentrations of GGfPrt could delay the capacity of adsorbed thrombin to cleave fibrinogen. In contrast, GGfPrt immobilized in high concentrations was found to induce the procoagulant activity of the adsorbed thrombin. However, all surfaces containing GGfPrt have a plasma clotting time similar to the negative control (empty polystyrene wells), showing resistance to coagulation, which is explained by its capacity to adsorb albumin in a selective and reversible way. This work opens new perspectives to the improvement of the haemocompatibility of blood-contacting medical devices. {\textcopyright} 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.},
	keywords = {Albumin, Blood compatibility, Clotting, Surface modification, Thrombin},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84895067841\&partnerID=40\&md5=8486186625f8f4f1cbc538bb3e34dd82},
	author = {Freitas, S.C. and Maia, S. and Figueiredo, A.C. and Gomes, P. and Pereira, P.J.B. and Barbosa, M.A. and Martins, M.C.L.}
}
@article {3398,
	title = {Splice-correcting oligonucleotides restore BTK function in X-linked agammaglobulinemia model},
	journal = {Journal of Clinical Investigation},
	volume = {124},
	year = {2014},
	note = {Bestas, Burcu Moreno, Pedro M. D. Blomberg, K. Emelie M. Mohammad, Dara K. Saleh, Amer F. Sutlu, Tolga Nordin, Joel Z. Guterstam, Peter Gustafsson, Manuela O. Kharazi, Shabnam Piatosa, Barbara Roberts, Thomas C. Behlke, Mark A. Wood, Matthew J. A. Gait, Michael J. Lundin, Karin E. El Andaloussi, Samir Mansson, Robert Berglof, Anna Wengel, Jesper Smith, C. I. Edvard},
	month = {2014},
	pages = {4067-4081},
	isbn = {0021-9738},
	url = {<Go to ISI>://WOS:000341168100038},
	author = {Bestas, B. and Moreno, P.M.D. and Blomberg, K. E. M. and Mohammad, D. K. and Saleh, A. F. and Sutlu, T. and Nordin, J. Z. and Guterstam, P. and Gustafsson, M. O. and Kharazi, S. and Piatosa, B. and Roberts, T. C. and Behlke, M. A. and Wood, M. J. A. and Gait, M. J. and Lundin, K.E. and El Andaloussi, S. and Mansson, R. and Berglof, A. and Wengel, J. and Smith, C.I.E.}
}
@article {3309,
	title = {What do Portuguese women prefer regarding vaginal products? Results from a cross-sectional web-based survey},
	journal = {Pharmaceutics},
	volume = {6},
	year = {2014},
	note = {Export Date: 21 November 2014},
	month = {2014},
	pages = {543 - 556},
	abstract = {Therapeutic outcomes of vaginal products depend not only on their ability to deliver drugs to or through the vagina but also on acceptability and correct use. Women{\textquoteright}s preferences, in turn, may vary according to age and cultural backgrounds. In this work, an anonymous online survey was completed by 2529 Portuguese women to assess their preferences for physical characteristics and mode of application of vaginal products, according to age. Additionally, intention to use and misconceptions about these issues were assessed. The majority of women of all age groups would use vaginal products to treat or prevent diseases, upon medical prescription. Women preferred vaginal products to be odorless and colorless gels, creams and ointments composed by natural origin drugs/excipients and applied by means of an applicator. Although the majority of women would prefer not to insert any product in the vagina, intention to use for self and recommendation to use for others was associated with previous experiences with vaginal products. General concerns and misconceptions related to use of vaginal products were rare. These data may contribute to the development of products that women are more prone to use.},
	keywords = {Acceptability, Vaginal dosage forms, Vaginal products, Women{\textquoteright}s preferences},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84908210757\&partnerID=40\&md5=5515e40e97ff157b0a5b4498557008ef},
	author = {Palmeira-de-Oliveira, R. and Duarte, P. and Palmeira-de-Oliveira, A. and Das Neves, J. and Amaral, M.H. and Breitenfeld, L. and Martinez-de-Oliveira, J.}
}
@article {3414,
	title = {What do portuguese women prefer regarding vaginal products? Results from a cross-sectional web-based survey},
	journal = {Pharmaceutics},
	volume = {6},
	year = {2014},
	note = {25337676},
	month = {2014},
	pages = {543-56},
	isbn = {1999-4923},
	url = {<Go to ISI>://MEDLINE:25337676},
	author = {Palmeira-de-Oliveira, Rita and Duarte, Paulo and Palmeira-de-Oliveira, Ana and das Neves, Jose and Amaral, Maria Helena and Breitenfeld, Luiza and Martinez-de-Oliveira, Jose}
}
@article {2759,
	title = {Adsorbed fibrinogen leads to improved bone regeneration and correlates with differences in the systemic immune response},
	journal = {Acta Biomaterialia},
	volume = {9},
	year = {2013},
	note = {Export Date: 23 May 2013Source: ScopusArticle in Press},
	month = {07/2013},
	pages = {7209-7217},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84876834487\&partnerID=40\&md5=2d00f0bc55f461c9c979548276f0e53d},
	author = {Santos, S.G. and Lamghari, M. and Almeida, C.R. and Oliveira, M.I. and Neves, N. and Ribeiro, A.C. and Barbosa, J.N. and Barros, R. and Maciel, J. and Martins, M.C.L. and Gon{\c c}alves, R.M. and Barbosa, M.A.}
}
@article {2871,
	title = {Advanced biofabrication strategies for skin regeneration and repair},
	journal = {Nanomedicine},
	volume = {8},
	year = {2013},
	note = {Cited By (since 1996):3Export Date: 12 December 2013Source: Scopus},
	month = {2013///},
	pages = {603 - 621},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84875943184\&partnerID=40\&md5=6ad3f1ffd0f6a7e567b16f0fd9b31121},
	author = {Pereira, R.F. and Barrias, C.C. and Granja, P.L. and Bartolo, P.J.}
}
@article {2800,
	title = {An overview of central fetal monitoring systems in labour},
	year = {2013},
	month = {2013},
	author = {Nunes, In{\^e}s and Ayres-de-Campos, Diogo and Figueiredo, Catarina and Bernardes, Jo{\~a}o \%@ 1619-3997}
}
@article {2846,
	title = {Assessing the physical-chemical properties and stability of dapivirine-loaded polymeric nanoparticles},
	journal = {International Journal of Pharmaceutics},
	volume = {456},
	year = {2013},
	note = {Export Date: 12 December 2013Source: Scopus},
	month = {2013///},
	pages = {307 - 314},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84884308158\&partnerID=40\&md5=52f91c19cbe922064bbdc786298301a0},
	author = {Das Neves, J. and Amiji, M. and Bahia, M.F. and Sarmento, B.}
}
@article {2835,
	title = {Bioengineered surfaces promote specific protein-glycan mediated binding of the gastric pathogen Helicobacter pylori},
	journal = {Acta Biomaterialia},
	volume = {9},
	year = {2013},
	note = {Export Date: 12 December 2013Source: Scopus},
	month = {2013///},
	pages = {8885 - 8893},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84885052038\&partnerID=40\&md5=0d17eb0f95d76eb18ea20ef7f33c8192},
	author = {Parreira, P. and Magalh{\~a}es, A. and Reis, C.A. and Bor{\'e}n, T. and Leckband, D. and Martins, M.C.L.}
}
@article {2888,
	title = {Characterization of human NLZ1/ZNF703 identifies conserved domains essential for proper subcellular localization and transcriptional repression},
	journal = {Journal of Cellular Biochemistry},
	volume = {114},
	year = {2013},
	note = {Export Date: 12 December 2013Source: Scopus},
	month = {2013///},
	pages = {120 - 133},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84869412286\&partnerID=40\&md5=e48a26e94d7ce0eddb65d8067fdc056c},
	author = {Pereira-Castro, I. and Costa, {\^A}.M.S. and Oliveira, M.J. and Barbosa, I. and Rocha, A.S. and Azevedo, L. and Da Costa, L.T.}
}
@article {2833,
	title = {Co-expression network analysis and genetic algorithms for gene prioritization in preeclampsia},
	journal = {BMC Medical Genomics},
	volume = {6},
	year = {2013},
	note = {Export Date: 12 December 2013Source: ScopusArt. No.: 51},
	month = {2013///},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84887314151\&partnerID=40\&md5=3daae7034430deb7d1e057fa432b236d},
	author = {Tejera, E. and Bernardes, J. and Rebelo, I.}
}
@article {2868,
	title = {Comparison of different methods of heart rate entropy analysis during acute anoxia superimposed on a chronic rat model of pulmonary hypertension},
	journal = {Medical Engineering and Physics},
	volume = {35},
	year = {2013},
	note = {Cited By (since 1996):1Export Date: 12 December 2013Source: Scopus},
	month = {2013///},
	pages = {559 - 568},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84877632838\&partnerID=40\&md5=05c9ef6d6fea4a96d6a63f1749251066},
	author = {Gon{\c c}alves, H. and Henriques-Coelho, T. and Rocha, A.P. and Louren{\c c}o, A.P. and Leite-Moreira, A. and Bernardes, J.}
}
@article {2860,
	title = {Comparison of real beat-to-beat signals with commercially available 4 Hz sampling on the evaluation of foetal heart rate variability},
	journal = {Medical and Biological Engineering and Computing},
	volume = {51},
	year = {2013},
	note = {Export Date: 12 December 2013Source: Scopus},
	month = {2013///},
	pages = {665 - 676},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84877784836\&partnerID=40\&md5=cfdde94007fba73e03e51da6af74b995},
	author = {Gon{\c c}alves, H. and Costa, A. and Ayres-de-Campos, D. and Costa-Santos, C. and Rocha, A.P. and Bernardes, J.}
}
@article {2878,
	title = {Development of bis-locked nucleic acid (bisLNA) oligonucleotides for efficient invasion of supercoiled duplex DNA},
	journal = {Nucleic Acids Research},
	volume = {41},
	year = {2013},
	note = {Cited By (since 1996):2Export Date: 12 December 2013Source: Scopus},
	month = {2013///},
	pages = {3257 - 3273},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84876401355\&partnerID=40\&md5=96078ee73fe175f8f962db91c20a8724},
	author = {Moreno, P.M.D. and Geny, S. and Pabon, Y.V. and Bergquist, H. and Zaghloul, E.M. and Rocha, C.S.J. and Oprea, I.I. and Bestas, B. and Andaloussi, S.E. and J{\o}rgensen, P.T. and Pedersen, E.B. and Lundin, K.E. and Zain, R. and Wengel, J. and Smith, C.I.E.}
}
@article {2880,
	title = {Endothelialization of chitosan porous conduits via immobilization of a recombinant fibronectin fragment (rhFNIII7-10)},
	journal = {Acta Biomaterialia},
	volume = {9},
	year = {2013},
	note = {Export Date: 12 December 2013Source: Scopus},
	month = {2013///},
	pages = {5643 - 5652},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84873199566\&partnerID=40\&md5=f548695261ada2fc57ece26bff1f45d0},
	author = {Amaral, I.F. and Neiva, I. and Ferreira da Silva, F. and Sousa, S.R. and Piloto, A.M. and Lopes, C.D.F. and Barbosa, M.A. and Kirkpatrick, C.J. and P{\^e}go, A.P.}
}
@article {2876,
	title = {Enzymatic, physicochemical and biological properties of MMP-sensitive alginate hydrogels},
	journal = {Soft Matter},
	volume = {9},
	year = {2013},
	note = {Cited By (since 1996):1Export Date: 12 December 2013Source: Scopus},
	month = {2013///},
	pages = {3283 - 3292},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84874428389\&partnerID=40\&md5=39d83a72fc608cc7f1c875e612421ff5},
	author = {Fonseca, K.B. and Maia, F.R. and Cruz, F.A. and Andrade, D. and Juliano, M.A. and Granja, P.L. and Barrias, C.C.}
}
@article {2776,
	title = {Fibrinogen promotes resorption of chitosan by human osteoclasts},
	journal = {Acta Biomaterialia},
	volume = {9},
	year = {2013},
	note = {Export Date: 23 May 2013Source: ScopusArticle in Press},
	month = {2013///},
	pages = {6553-6562},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84873739793\&partnerID=40\&md5=5114933c69d12bf99e9785aca23b3011},
	author = {Torres, A.L. and Santos, S.G. and Oliveira, M.I. and Barbosa, M.A.}
}
@article {2838,
	title = {Functionalization of biomaterials with small osteoinductive moieties},
	journal = {Acta Biomaterialia},
	volume = {9},
	year = {2013},
	note = {Export Date: 12 December 2013Source: Scopus},
	month = {2013///},
	pages = {8773 - 8789},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84885024380\&partnerID=40\&md5=a9ee12bc1c5789cd64861fd8201fc645},
	author = {Maia, F.R. and Bidarra, S.J. and Granja, P.L. and Barrias, C.C.}
}
@article {2861,
	title = {Gender-specific heart rate dynamics in severe intrauterine growth-restricted fetuses},
	journal = {Early Human Development},
	volume = {89},
	year = {2013},
	note = {Export Date: 12 December 2013Source: Scopus},
	month = {2013///},
	pages = {431 - 437},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84876735249\&partnerID=40\&md5=fb66d2a3f8a56a6f99cfe8008a3def01},
	author = {Gon{\c c}alves, H. and Bernardes, J. and Ayres-de-Campos, D.}
}
@article {2857,
	title = {In vitro and Ex Vivo evaluation of polymeric nanoparticles for vaginal and rectal delivery of the anti-HIV drug dapivirine},
	journal = {Molecular Pharmaceutics},
	volume = {10},
	year = {2013},
	note = {Cited By (since 1996):1Export Date: 12 December 2013Source: Scopus},
	month = {2013///},
	pages = {2793 - 2807},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84879736868\&partnerID=40\&md5=cd7771212c94b7031331e338743b05ed},
	author = {Das Neves, J. and Ara{\'u}jo, F. and Andrade, F. and Michiels, J. and Ari{\"e}n, K.K. and Vanham, G. and Amiji, M. and Bahia, M.F. and Sarmento, B.}
}
@article {2877,
	title = {Information-based measure of disagreement for more than two observers: A useful tool to compare the degree of observer disagreement},
	journal = {BMC Medical Research Methodology},
	volume = {13},
	year = {2013},
	note = {Export Date: 12 December 2013Source: ScopusArt. No.: 47},
	month = {2013///},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84875159444\&partnerID=40\&md5=c62818fbdde48aa73825e4780acb6f70},
	author = {Henriques, T. and Antunes, L. and Bernardes, J. and Matias, M. and Sato, D. and Costa-Santos, C.}
}
@article {2830,
	title = {Macrophage polarization following chitosan implantation},
	journal = {Biomaterials},
	volume = {34},
	year = {2013},
	note = {Export Date: 12 December 2013Source: Scopus},
	month = {2013///},
	pages = {9952 - 9959},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84885383515\&partnerID=40\&md5=a152c1c59bf410d725b5e4ce4eeed18f},
	author = {Vasconcelos, D.P. and Fonseca, A.C. and Costa, M. and Amaral, I.F. and Barbosa, M.A. and {\'A}guas, A.P. and Barbosa, J.N.}
}
@booklet {2867,
	title = {Macrophages stimulate gastric and colorectal cancer invasion through EGFR Y1086, c-Src, Erk1/2 and Akt phosphorylation and smallGTPase activity},
	howpublished = {Oncogene},
	year = {2013},
	note = {Cited By (since 1996):1Export Date: 12 December 2013Source: ScopusArticle in Press},
	month = {2013///},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84876908646\&partnerID=40\&md5=bcc2929bb93817db3dc0e3421c420722},
	author = {Cardoso, A.P. and Pinto, M.L. and Pinto, A.T. and Oliveira, M.I. and Pinto, M.T. and Gon{\c c}alves, R. and Relvas, J.B. and Figueiredo, C. and Seruca, R. and Mantovani, A. and Mareel, M. and Barbosa, M.A. and Oliveira, M.J.}
}
@article {2870,
	title = {A model for educational simulation of the effect of oxytocin on uterine contractions},
	journal = {Medical Engineering and Physics},
	volume = {35},
	year = {2013},
	note = {Cited By (since 1996):1Export Date: 12 December 2013Source: Scopus},
	month = {2013///},
	pages = {524 - 531},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84876114966\&partnerID=40\&md5=ac7aee56840fe71fcaaa1171d75e927c},
	author = {Lobo, M.F. and Bastos, L.F. and van Meurs, W.L. and Ayres-de-Campos, D.}
}
@article {2847,
	title = {Modulation of stability and mucoadhesive properties of chitosan microspheres for therapeutic gastric application},
	journal = {International Journal of Pharmaceutics},
	volume = {454},
	year = {2013},
	note = {Cited By (since 1996):1Export Date: 12 December 2013Source: Scopus},
	month = {2013///},
	pages = {116 - 124},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84884163785\&partnerID=40\&md5=1d040067777b023c63bb769260b66dcd},
	author = {Fernandes, M. and Gon{\c c}alves, I.C. and Nardecchia, S. and Amaral, I.F. and Barbosa, M.A. and Martins, M.C.L.}
}
@article {2850,
	title = {Month of birth and risk of multiple sclerosis in a Portuguese population},
	journal = {Clinical Neurology and Neurosurgery},
	volume = {115},
	year = {2013},
	note = {Export Date: 12 December 2013Source: Scopus},
	month = {2013///},
	pages = {1762 - 1765},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84887620107\&partnerID=40\&md5=15ae9457f2af413647269976084784df},
	author = {Barros, P. and De S{\'a}, J.M. and S{\'a}, M.J.}
}
@article {2843,
	title = {Neuropeptide y modulates fracture healing through Y1 receptor signaling},
	journal = {Journal of Orthopaedic Research},
	volume = {31},
	year = {2013},
	note = {Export Date: 12 December 2013Source: Scopus},
	month = {2013///},
	pages = {1570 - 1578},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84882886747\&partnerID=40\&md5=dd7576a200a42ce37ff5a98115fe9462},
	author = {Sousa, D.M. and McDonald, M.M. and Mikulec, K. and Peacock, L. and Herzog, H. and Lamghari, M. and Little, D.G. and Baldock, P.A.}
}
@article {2887,
	title = {An overview of central fetal monitoring systems in labour},
	journal = {Journal of Perinatal Medicine},
	volume = {41},
	year = {2013},
	note = {Cited By (since 1996):1Export Date: 12 December 2013Source: Scopus},
	month = {2013///},
	pages = {93 - 99},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84881633207\&partnerID=40\&md5=f9c824ddb554c46a92331e20852ef509},
	author = {Nunes, I. and Ayres-de-Campos, D. and Figueiredo, C. and Bernardes, J.}
}
@article {2852,
	title = {Should European perinatal indicators be revisited?},
	journal = {European Journal of Obstetrics Gynecology and Reproductive Biology},
	volume = {170},
	year = {2013},
	note = {Cited By (since 1996):2Export Date: 12 December 2013Source: Scopus},
	month = {2013///},
	pages = {85 - 89},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84883051720\&partnerID=40\&md5=3a02193e168ada76c4ca21d9ea20785b},
	author = {Santos, J.V. and Correia, C. and Cabral, F. and Bernardes, J. and Costa-Pereira, A. and Freitas, A.}
}
@article {2832,
	title = {The smart connective tissue of echinoderms: A materializing promise for biotech applications},
	journal = {Cahiers de Biologie Marine},
	volume = {54},
	year = {2013},
	note = {Export Date: 12 December 2013Source: Scopus},
	month = {2013///},
	pages = {713 - 720},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84888251812\&partnerID=40\&md5=da72fa98c41a55cd98f71fdaec4b8424},
	author = {Barbaglio, A. and Tricarico, S. and Di Benedetto, C. and Fassini, D. and Lima, A.P. and Ribeiro, A.R. and Ribeiro, C.C. and Sugni, M. and Bonasoro, F. and Wilkie, L. and Barbosa, M. and Candia Carnevali, M.D.}
}
@article {2831,
	title = {Sociodemographic determinants of prevalence and incidence of helicobacter pylori infection in portuguese adults},
	journal = {Helicobacter},
	volume = {18},
	year = {2013},
	note = {Export Date: 12 December 2013Source: Scopus},
	month = {2013///},
	pages = {413 - 422},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84886298522\&partnerID=40\&md5=460550c9c4474e105c93815a934c98ee},
	author = {Bastos, J. and Peleteiro, B. and Barros, R. and Alves, L. and Severo, M. and de F{\'a}tima Pina, M. and Pinto, H. and Carvalho, S. and Marinho, A. and Guimar{\~a}es, J.T. and Azevedo, A. and La Vecchia, C. and Barros, H. and Lunet, N.}
}
@article {2881,
	title = {Taking tissue adhesives to the future: From traditional synthetic to new biomimetic approaches},
	journal = {Biomaterials Science},
	volume = {1},
	year = {2013},
	note = {Cited By (since 1996):3Export Date: 12 December 2013Source: Scopus},
	month = {2013///},
	pages = {239 - 253},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84877753912\&partnerID=40\&md5=772c15e73287e3754da848ada5a0e296},
	author = {Br{\'e}, L.P. and Zheng, Y. and P{\^e}go, A.P. and Wang, W.}
}
@article {2796,
	title = {Taking tissue adhesives to the future: from traditional synthetic to new biomimetic approaches},
	volume = {1},
	year = {2013},
	month = {2013},
	pages = {239 - 253},
	publisher = {Royal Society of Chemistry},
	author = {Br{\'e}, L{\'\i}gia Pereira and Zheng, Yu and P{\^e}go, Ana Paula and Wang, Wenxin}
}
@booklet {2190,
	title = {Bioengineered surfaces to improve the blood compatibility of biomaterials through direct thrombin inactivation},
	howpublished = {Acta BiomaterialiaActa Biomater.},
	year = {2012},
	note = {Export Date: 21 November 2012Source: ScopusArticle in Pressdoi: 10.1016/j.actbio.2012.07.020Language of Original Document: EnglishCorrespondence Address: Martins, M.C.L.; INEB - Instituto de Engenharia Biom{\'e}dica, Universidade do Porto, Rua do Campo Alegre 823, 415email: cmartins@ineb.up.pt},
	month = {2012///},
	abstract = {Thrombus formation, due to thrombin generation, is a major problem affecting blood-contacting medical devices. This work aimed to develop a new strategy to improve the hemocompatibility of such devices by the immobilization of a naturally occurring thrombin inhibitor into a nanostructured surface. Boophilin, a direct thrombin inhibitor from the cattle tick Rhipicephalus microplus, was produced as a recombinant protein in Pichia pastoris. Boophilin was biotinylated and immobilized on biotin-terminated self-assembled monolayers (SAM) via neutravidin. In order to maintain its proteinase inhibitory capacity after surface immobilization, boophilin was biotinylated after the formation of a boophilin-thrombin complex to minimize the biotinylation of the residues involved in thrombin-boophilin interaction. The extent of boophilin biotinylation was determined using matrix-assisted laser desorption/ionization-time of flight/time of flight mass spectrometry. Boophilin immobilization and thrombin adsorption were quantified using quartz crystal microbalance with dissipation. Thrombin competitive adsorption from human serum was assessed using                        125I-thrombin. Thrombin inhibition and plasma clotting time were determined using spectrophotometric techniques. Boophilin-coated SAM were able to promote thrombin adsorption in a selective way, inhibiting most of its activity and delaying plasma coagulation in comparison with boophilin-free surfaces, demonstrating boophilin{\textquoteright}s potential to improve the hemocompatibility of biomaterials used in the production of blood-contacting devices. {\textcopyright} 2012 Acta Materialia Inc.
},
	keywords = {Coagulation, Hemocompatibility, Protein adsorption, Surface functionalization, Thrombin},
	isbn = {17427061 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84865246462\&partnerID=40\&md5=278b2e7d1427a6032eba9ecbd01c3872},
	author = {Freitas, S.C. and Cereija, T.B. and Figueiredo, A.C. and Os{\'o}rio, H. and Pereira, P.J.B. and Barbosa, M.A. and Martins, M.C.L.}
}
@article {2203,
	title = {Biosynthesis of highly pure poly-γ-glutamic acid for biomedical applications},
	journal = {Journal of Materials Science: Materials in MedicineJ. Mater. Sci. Mater. Med.},
	volume = {23},
	year = {2012},
	note = {Export Date: 21 November 2012Source: ScopusCODEN: JSMMEdoi: 10.1007/s10856-012-4639-xPubMed ID: 22532096Language of Original Document: EnglishCorrespondence Address: Pereira, C.L.; INEB-Instituto de Engenharia Biom{\'e}dica, Universidade Do Porto, Rua do Campo Alegre, 823, 4150-180 Porto, Portugal; email: Catarina.pereira@ineb.up.ptChemicals/CAS: chitosan, 9012-76-4; glutamic acid, 11070-68-1, 138-15-8, 56-86-0, 6899-05-4; polyglutamic acid, 24991-23-9, 25513-46-6; Biocompatible Materials; Polyglutamic Acid, 25513-46-6; poly(gamma-glutamic acid)References: Ratner, B.D., Hoffman, A.S., Shoen, F.J., Lemons, J.E., (2004) Natural Materials. Biomaterials Science-an Introduction to Materials in Medicine, , 2nd ed. San Diego, CA: Academic Press;Buescher, J.M., Margaritis, A., Microbial biosynthesis of polyglutamic acid biopolymer and applications in the biopharmaceutical, biomedical and food industries (2007) Critical Reviews in Biotechnology, 27 (1), pp. 1-19. , DOI 10.1080/07388550601166458, PII 773236840; 
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Lin, Y.-H., Chung, C.-K., Chen, C.-T., Liang, H.-F., Chen, S.-C., Sung, H.-W., Preparation of nanoparticles composed of chitosan/poly-γ-glutamic acid and evaluation of their permeability through Caco-2 cells (2005) Biomacromolecules, 6 (2), pp. 1104-1112. , DOI 10.1021/bm049312a; 
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},
	month = {2012///},
	pages = {1583 - 1591},
	abstract = {The remarkable properties of poly-aminoacids, mainly their biocompatibility and biodegradability, have prompted an increasing interest in these polymers for biomedical applications. Poly-γ-glutamic acid (γ-PGA) is one of the most interesting poly-aminoacids with potential applications as a biomaterial. Here we describe the production and characterization of γ-PGA by Bacillus subtilis natto. The γ-PGA was produced with low molecular weight (10-50 kDa), high purity grade (>99 \%) and a D-/L-glutamate ratio of 50-60/50-40 \%. To evaluate the feasibility of using this γ-PGA as a biomaterial, chitosan (Ch)/γ-PGA nanoparticles were prepared by the coacervation method at pH ranging from 3.0 to 5.0, with dimensions in the interval 214-221 nm with a poly-dispersion index of ca. 0.2. The high purity of γ-PGA produced by this method, which is firstly described here, renders this biopolymer suitable for biomedical applications. Moreover, the Ch/γ-PGA nanocomplexes developed in this investigation can be combined with biologically active substances for their delivery in the organism. The fact that the assembly between Ch and γ-PGA relies on electrostatic interactions enables addition of other molecules that can be released into the medium through changes from acidic to physiological pH, without loss in biological activity. {\textcopyright} Springer Science+Business Media, LLC 2012.},
	keywords = {Amino acids, animal cell, article, Bacillus subtilis, Bacillus subtilis natto, Bioactivity, Biocompatibility, Biocompatible Materials, biodegradability, Biodegradable polymers, Biodegradation, Biologically active substances, biomaterial, Biomedical applications, biomedicine, biosynthesis, chitosan, circular dichroism, complex formation, controlled study, dispersion, Electrophoresis, Polyacrylamide Gel, feasibility study, Functional polymers, gamma polyglutamic acid, Glutamic acid, High purity, Low molecular weight, Medical applications, molecular interaction, molecular weight, Nanocomplexes, nanoparticle, nonhuman, pH, Physiological pH, polyglutamic acid, Potential applications, priority journal, purification, Spectroscopy, Fourier Transform Infrared, static electricity, Stereoisomerism, unclassified drug},
	isbn = {09574530 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84863314791\&partnerID=40\&md5=d0d618bb2684c8e80e984cfe35f3eb77},
	author = {Pereira, C.L. and Antunes, J.C. and Gon{\c c}alves, R.M. and Ferreira-da-Silva, F. and Barbosa, M.A.}
}
@booklet {2176,
	title = {Brain delivery of camptothecin by means of solid lipid nanoparticles: Formulation design, in vitro and in vivo studies},
	howpublished = {International Journal of PharmaceuticsInt. J. Pharm.},
	volume = {439},
	year = {2012},
	note = {Export Date: 21 November 2012Source: ScopusArticle in PressCODEN: IJPHDdoi: 10.1016/j.ijpharm.2012.09.054Language of Original Document: EnglishCorrespondence Address: Martins, S.; Laboratory of Pharmaceutical Technology/Centre of Research in Pharmaceutical Sciences (LTF/CICF), Faemail: susana.martins@ff.up.pt},
	month = {2012///},
	pages = {49 - 62},
	abstract = {For the purpose of brain delivery upon intravenous injection, formulations of camptothecin-loaded solid lipid nanoparticles (SLN), prepared by hot high pressure homogenisation, were designed. Incorporation of camptothecin in the hydrophobic and acidic environment of SLN matrix was chosen to stabilise the lactone ring, which is essential for its antitumour activity, and for avoiding premature loss of drug on the way to target camptothecin to the brain.A multivariate approach was used to assess the influence of the qualitative and quantitative composition on the physicochemical properties of camptothecin-loaded SLN in comparison to plain SLN. Mean particle sizes of <=200. nm, homogenous size distributions and high encapsulation efficiencies (>90\%) were achieved for the most suitable formulations. In vitro release studies in plasma, showed a prolonged release profile of camptothecin from SLN, confirming the physical stability of the particles under physiological pH. A higher affinity of the SLN to the porcine brain capillary endothelial cells (BCEC) was shown in comparison to macrophages. MTT studies in BCEC revealed a moderate decrease in the cell viability of camptothecin, when incorporated in SLN compared to free camptothecin in solution. In vivo studies in rats showed that fluorescently labelled SLN were detected in the brain after i.v. administration. This study indicates that the camptothecin-loaded SLN are a promising drug brain delivery system worth to explore further for brain tumour therapy. {\textcopyright} 2012 Elsevier B.V.},
	keywords = {Brain capillary endothelial cells (BCEC), Brain delivery, Camptothecin, Multivariate analysis, Solid lipid nanoparticles (SLN), Surfactants},
	isbn = {03785173 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84867836553\&partnerID=40\&md5=74d025ee54b5f6569263167e0e4bcfd0},
	author = {Martins, S. and Tho, I. and Reimold, I. and Fricker, G. and Souto, E. and Ferreira, D. and Brandl, M.}
}
@article {2182,
	title = {Cancer syndromes and therapy by stop-codon readthrough},
	journal = {Trends in Molecular MedicineTrends Mol. Med.},
	volume = {18},
	year = {2012},
	note = {Export Date: 21 November 2012Source: ScopusCODEN: TMMRCdoi: 10.1016/j.molmed.2012.09.004Language of Original Document: EnglishCorrespondence Address: Oliveira, C.; Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP), 4200-465 Porto, Portugal; email: carlaol@ipatimup.ptReferences: Linde, L., Kerem, B., Introducing sense into nonsense in treatments of human genetic diseases (2008) Trends Genet., 24, pp. 552-563;Isken, O., Maquat, L.E., The multiple lives of NMD factors: balancing roles in gene and genome regulation (2008) Nat. Rev. Genet., 9, pp. 699-712; 
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Heier, C.R., DiDonato, C.J., Translational readthrough by the aminoglycoside geneticin (G418) modulates SMN stability in vitro and improves motor function in SMA mice in vivo (2009) Hum. Mol. Genet., 18, pp. 1310-1322; 
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Nudelman, I., Repairing faulty genes by aminoglycosides: development of new derivatives of geneticin (G418) with enhanced suppression of diseases-causing nonsense mutations (2010) Bioorg. Med. Chem., 18, pp. 3735-3746; 
Nudelman, I., Development of novel aminoglycoside (NB54) with reduced toxicity and enhanced suppression of disease-causing premature stop mutations (2009) J. Med. Chem., 52, pp. 2836-2845; 
Du, M., PTC124 is an orally bioavailable compound that promotes suppression of the human CFTR-G542X nonsense allele in a CF mouse model (2008) Proc. Natl. Acad. Sci. U.S.A., 105, pp. 2064-2069; 
Hirawat, S., Safety, tolerability, and pharmacokinetics of PTC124, a nonaminoglycoside nonsense mutation suppressor, following single- and multiple-dose administration to healthy male and female adult volunteers (2007) J. Clin. Pharmacol., 47, pp. 430-444; 
Teng, S., Readthrough of nonsense mutation W822X in the SCN5A gene can effectively restore expression of cardiac Na+ channels (2009) Cardiovasc. Res., 83, pp. 473-480; 
Diop, D., Aminoglycosides and other factors promoting stop codon readthrough in human cells (2007) C. R. Biol., 330, pp. 71-79; 
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Mintzer, M.A., Simanek, E.E., Nonviral vectors for gene delivery (2009) Chem. Rev., 109, pp. 259-302; 
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Keeling, K.M., Bedwell, D.M., Clinically relevant aminoglycosides can suppress disease-associated premature stop mutations in the IDUA and P53 cDNAs in a mammalian translation system (2002) J. Mol. Med. (Berl.), 80, pp. 367-376; 
Floquet, C., Rescue of non-sense mutated p53 tumor suppressor gene by aminoglycosides (2011) Nucleic Acids Res., 39, pp. 3350-3362; 
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Simon, A.J., The effect of gentamicin-induced readthrough on a novel premature termination codon of CD18 leukocyte adhesion deficiency patients (2010) PLoS ONE, 5, pp. e13659
},
	month = {2012///},
	pages = {667 - 678},
	abstract = {Several hereditary cancer syndromes are associated with nonsense mutations that create premature termination codons (PTC). Therapeutic strategies involving readthrough induction partially restore expression of proteins with normal function from nonsense-mutated genes, and small molecules such as aminoglycosides and PTC124 have exhibited promising results for treating patients with cystic fibrosis and Duchenne muscular dystrophy. Transgenic expression of suppressor-tRNAs and depleting translation termination factors are, among others, potential strategies for treating PTC-associated diseases. In this review, the potential of using readthrough strategies as a therapy for cancer syndromes is discussed, and we consider the effect of nonsense-mediated decay and other factors on readthrough efficiency. {\textcopyright} 2012 Elsevier Ltd.},
	keywords = {Aminoglycosides, Hereditary cancer syndromes, Nonsense-mediated decay (NMD), Nonsense-suppression, Premature termination codon (PTC), PTC124, Readthrough, Suppressor-tRNA},
	isbn = {14714914 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84868212770\&partnerID=40\&md5=93ff561cb7d1c818f78a88ec1555181e},
	author = {Bordeira-Carri{\c c}o, R. and P{\^e}go, A.P. and Santos, M. and Oliveira, C.}
}
@article {2180,
	title = {Chitosan drives anti-inflammatory macrophage polarisation and pro-inflammatory dendritic cell stimulation.},
	journal = {European cells \& materialsEur Cell Mater},
	volume = {24},
	year = {2012},
	note = {Export Date: 21 November 2012Source: ScopusPubMed ID: 22828991Language of Original Document: EnglishCorrespondence Address: Oliveira, M.I.Chemicals/CAS: chitosan, 9012-76-4; Antigens, CD86; Biocompatible Materials; Chitosan, 9012-76-4; Histocompatibility Antigens Class II; IL10 protein, human; Interleukin-10, 130068-27-8; Transforming Growth Factor beta1; Tumor Necrosis Factor-alpha},
	month = {2012///},
	pages = {136 - 152; discussion 152-153},
	abstract = {Macrophages and dendritic cells (DC) share the same precursor and play key roles in immunity. Modulation of their behaviour to achieve an optimal host response towards an implanted device is still a challenge. Here we compare the differentiation process and polarisation of these related cell populations and show that they exhibit different responses to chitosan (Ch), with human monocyte-derived macrophages polarising towards an anti-inflammatory phenotype while their DC counterparts display pro-inflammatory features. Macrophages and DC, whose interactions with biomaterials are frequently analysed using fully differentiated cells, were cultured directly on Ch films, rather than exposed to the polymer after complete differentiation. Ch was the sole stimulating factor and activated both macrophages and DC, without leading to significant T cell proliferation. After 10 d on Ch, macrophages significantly down-regulated expression of pro-inflammatory markers, CD86 and MHCII. Production of pro-inflammatory cytokines, particularly TNF-α, decreased with time for cells cultured on Ch, while anti-inflammatory IL-10 and TGF-β1, significantly increased. Altogether, these results suggest an M2c polarisation. Also, macrophage matrix metalloproteinase activity was augmented and cell motility was stimulated by Ch. Conversely, DC significantly enhanced CD86 expression, reduced IL-10 secretion and increased TNF-α and IL-1β levels. Our findings indicate that cells with a common precursor may display different responses, when challenged by the same biomaterial. Moreover, they help to further comprehend macrophage/DC interactions with Ch and the balance between pro- and anti-inflammatory signals associated with implant biomaterials. We propose that an overall pro-inflammatory reaction may hide the expression of anti-inflammatory cytokines, likely relevant for tissue repair/regeneration.},
	keywords = {antibody specificity, Antigens, CD86, article, Biocompatible Materials, biomaterial, biosynthesis, CD86 antigen, Cell culture, cell differentiation, cell motion, Cell Movement, Cells, Cultured, chitosan, cytology, dendritic cell, Dendritic Cells, drug effect, flow cytometry, Histocompatibility Antigens Class II, HLA antigen class 2, human, Humans, IL10 protein, human, immunology, interleukin 10, Interleukin-10, macrophage, Macrophages, metabolism, monocyte, Monocytes, Organ Specificity, transforming growth factor beta1, tumor necrosis factor alpha, Tumor Necrosis Factor-alpha},
	isbn = {14732262 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84868253478\&partnerID=40\&md5=5a496411709ccbe5d3d70de13b58b08a},
	author = {Oliveira, M.I. and Santos, S.G. and Oliveira, M.J. and Torres, A.L. and Barbosa, M.A.}
}
@article {2187,
	title = {The effect of adsorbed fibronectin and osteopontin on macrophage adhesion and morphology on hydrophilic and hydrophobic model surfaces},
	journal = {Acta BiomaterialiaActa Biomater.},
	volume = {8},
	year = {2012},
	note = {Export Date: 21 November 2012Source: Scopusdoi: 10.1016/j.actbio.2012.06.010Language of Original Document: EnglishCorrespondence Address: Barbosa, M.A.; INEB - Instituto de Engenharia Biom{\'e}dica, Universidade Do Porto, Rua do Campo Alegre, 823, 4150-180 Porto, Portugal; email: mbarbosa@ineb.up.ptChemicals/CAS: fibronectin, 86088-83-7; gold, 7440-57-5; osteopontin, 106441-73-0References: Anderson, J.M., Biological responses to materials (2001) Annu Rev Mater Res, 31, pp. 81-110;Horbett, T.A., Brash, J.L., Proteins at interfaces: Current issues and future prospects (1987) Proteins at Interfaces, pp. 1-33; 
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Wilson, C.J., Clegg, R.E., Leavesley, D.I., Pearcy, M.J., Mediation of biomaterial-cell interactions by adsorbed proteins: A review (2005) Tissue Eng, 11, pp. 1-18; 
Allen, L.T., Surface-induced changes in protein adsorption and implications for cellular phenotypic responses to surface interaction (2006) Biomaterials, 27, pp. 3096-3108; 
Kou, P.M., Babensee, J.E., Macrophage and dendritic cell phenotypic diversity in the context of biomaterials (2011) J Biomed Mater Res, 96, pp. 239-260; 
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Jenney, C.R., Anderson, J.M., Effects of surface-coupled polyethylene oxide on human macrophage adhesion and foreign body giant cell formation in vitro (1999) J Biomed Mater Res, 44, pp. 206-216; 
Jenney, C.R., Anderson, J.M., Alkylsilane-modified surfaces: Inhibition of human macrophage adhesion and foreign body giant cell formation (1999) J Biomed Mater Res, 46, pp. 11-21; 
Collier, T.O., Anderson, J.M., Protein and surface effects on monocyte and macrophage adhesion, maturation, and survival (2002) J Biomed Mater Res, 60, pp. 487-496; 
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Kao, W.J., Lee, D., Schense, J.C., Hubbell, J.A., Fibronectin modulates macrophage adhesion and FBGC formation: The role of RGD, PHSRN, and PRRARV domains (2001) J Biomed Mater Res, 55, pp. 79-88; 
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Barrias, C.C., Martins, M.C.L., Almeida-Porada, G., Barbosa, M.A., Granja, P.L., The correlation between the adsorption of adhesive proteins and cell behaviour on hydroxyl-methyl mixed self-assembled monolayers (2009) Biomaterials, 30, pp. 307-316; 
Martins, M.C., Fonseca, C., Barbosa, M.A., Ratner, B.D., Albumin adsorption on alkanethiols self-assembled monolayers on gold electrodes studied by chronopotentiometry (2003) Biomaterials, 24, pp. 3697-3706; 
Sivaraman, B., Fears, K.P., Latour, R.A., Investigation of the effects of surface chemistry and solution concentration on the conformation of adsorbed proteins using an improved circular dichroism method (2009) Langmuir, 25, pp. 3050-3056; 
MacIel, J., Martins, M.C.L., Barbosa, M.A., The stability of self-assembled monolayers with time and under biological conditions (2010) J Biomed Mater Res, 94, pp. 833-843; 
Martins, M.C., Ratner, B.D., Barbosa, M.A., Protein adsorption on mixtures of hydroxyl- and methyl-terminated alkanethiols self-assembled monolayers (2003) J Biomed Mater Res, 67, pp. 158-171; 
Gehanno, V., Freitas, P.P., Veloso, A., Ferrira, J., Almeida, B., Soasa, J.B., Ion beam deposition of Mn-Ir spin valves (1999) IEEE Trans Magn, 35, pp. 4361-4367; 
Martins, M.C.L., Curtin, S.A., Freitas, S.C., Salgueiro, P., Ratner, B.D., Barbosa, M.A., Molecularly designed surfaces for blood deheparinization using an immobilized heparin-binding peptide (2009) J Biomed Mater Res, 88, pp. 162-173; 
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Barrias, C.C., Martins, C.L., Miranda, C.S., Barbosa, M.A., Adsorption of a therapeutic enzyme to self-assembled monolayers: Effect of surface chemistry and solution pH on the amount and activity of adsorbed enzyme (2005) Biomaterials, 26, pp. 2695-2704; 
Goncalves, R., Martins, M.C.L., Oliveira, M.J., Almeida-Porada, G., Barbosa, M.A., Bioactivity of immobilized EGF on self-assembled monolayers: Optimization of the immobilization process (2010) J Biomed Mater Res, 94, pp. 576-585; 
(1993) Iodine-125. A Guide to Radioiodination Techniques, , Amersham Life Science Little Chalfont, UK: Amersham, International; 
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Stein, M.J., Weidner, T., McCrea, K., Castner, D.G., Ratner, B.D., Hydration of sulphobetaine and tetra(ethylene glycol)-terminated self-assembled monolayers studied by sum frequency generation vibrational spectroscopy (2009) J Phys Chem B, 113, pp. 11550-11556; 
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Liu, L., Chen, S., Giachelli, C.M., Ratner, B.D., Jiang, S., Controlling osteopontin orientation on surfaces to modulate endothelial cell adhesion (2005) J Biomed Mater Res, 74, pp. 23-31; 
Malmstrom, J., Christensen, B., Lovmand, J., Sorensen, E.S., Duch, M., Sutherland, D.S., Osteopontin presentation affects cell adhesion - Influence of underlying surface chemistry and nanopatterning of osteopontin (2010) J Biomed Mater Res, 95, pp. 518-530
},
	month = {2012///},
	pages = {3669 - 3677},
	abstract = {Macrophages play a crucial role in the host response to biomaterials. Here we investigated the effect of adsorbed fibronectin (FN) and osteopontin (OPN), two important proteins for tissue repair, on macrophage adhesion and morphology. Since cell-biomaterial interactions are modulated via proteins adsorbed onto biomaterial surfaces, FN and OPN were adsorbed on model self-assembled monolayers (SAMs) of alkanethiols on gold with different functional terminal groups (CH                        3, OH and tetra(ethylene-glycol)). The initial interaction of inflammatory cells with a biomaterial is crucial for the ensuing phases of an inflammatory reaction. For this reason short-term cultures of primary human macrophages were performed. To account for the competitive adsorption of other proteins serum was added to the culture medium and the effect compared with serum-free medium cultures. In the presence of serum hydrophilic surfaces increased macrophage adhesion. In particular, FN induced a higher cell density, while OPN tended to decrease it. In serum-free medium cell adhesion was greater on hydrophobic surfaces, except for OPN-coated SAMs. Importantly, FN no longer enhanced macrophage adhesion, while OPN maintained its inhibitory effect. Cell polarization studies indicated that macrophage morphology variations induced by surface chemistry are overcome by pre-adsorbed OPN. Taken together our results show that in the presence of serum macrophage adhesion is promoted by FN hydrophilic surfaces, but impaired on OPN-coated surfaces. The effects of inhibited macrophage adhesion on macrophage fusion, and its relevance to the initial stages of the inflammatory response to biomaterials are discussed. {\textcopyright} 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
},
	keywords = {alkane, article, biomaterial, Biomaterials, cell adhesion, cell density, cell interaction, cell structure, controlled study, culture medium, cytoskeleton, Fibronectin, functional group, gold, human, human cell, hydrophilicity, hydrophobicity, inflammatory cell, macrophage, Macrophages, nanomaterial, Osteopontin, priority journal, self assembled monolayer, Self-assembled monolayers, Tetra, thiol, tissue repair},
	isbn = {17427061 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84865455542\&partnerID=40\&md5=9d34fb780e9ce53b424143b0f3eefb97},
	author = {Maciel, J. and Oliveira, M.I. and Gonalves, R.M. and Barbosa, M.A.}
}
@article {2183,
	title = {The effect of octadecyl chain immobilization on the hemocompatibility of poly (2-hydroxyethyl methacrylate)},
	journal = {BiomaterialsBiomaterials},
	volume = {33},
	year = {2012},
	note = {Export Date: 21 November 2012Source: ScopusCODEN: BIMADdoi: 10.1016/j.biomaterials.2012.07.007Language of Original Document: EnglishCorrespondence Address: Sperling, C.; Max Bergmann Center of Biomaterials Dresden, Leibniz Institute of Polymer Research Dresden, Hohe Str. 6, 01069 Dresden, Germany; email: sperling@ipfdd.deChemicals/CAS: isocyanate, 71000-82-3, 75-13-8; polymacon, 25053-81-0, 25249-16-5, 98932-78-6References: Gorbet, M.B., Sefton, M.V., Biomaterial-associated thrombosis: roles of coagulation factors, complement, platelets and leukocytes (2004) Biomaterials, 25, pp. 5681-5703;Cao, L., Sukavaneshvar, S., Ratner, B.D., Horbett, T.A., Glow discharge plasma treatment of polyethylene tubing with tetraglyme results in ultralow fibrinogen adsorption and greatly reduced platelet adhesion (2006) J Biomed Mater Res A, 79, pp. 788-803; 
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},
	month = {2012///},
	pages = {7677 - 7685},
	abstract = {Albumin-scavenging surfaces decorated with n-alkyl chains represent an established strategy for blood-contacting applications. To evaluate this concept, a set of poly (2-hydroxyethyl methacrylate) (pHEMA) films modified with different amounts of octadecyl isocyanate (C18) was investigated in an in vitro hemocompatibility assay using freshly drawn human whole blood. In addition, the hydrogel materials were thoroughly characterized with respect to changes in wettability and elasticity, which accompanied the gradual chemical modification of pHEMA. An increase of the surface C18 content induced enhanced hydrophobicity and stiffness. Immobilization of C18 chains was found to substantially reduce the coagulation activation and the complement activation by the pHEMA films. Platelet adhesion and degranulation (PF4 release) were similar on the modified and the unmodified pHEMA. Platelet adhesion to pHEMA hydrogels was lower than the polytetrafluoroethylene reference. We conclude that the immobilization of octadecyl chains improved the hemocompatibility of pHEMA materials under conditions that might be encountered in low shear blood flow. {\textcopyright} 2012 Elsevier Ltd.},
	keywords = {Adhesion, Albumin, article, Biological materials, Biomaterials, Blood, Blood flow, Chemical modification, Coagulation, controlled study, Degranulation, Elasticity, Haemocompatibility, Hemocompatibility, human, hydrogel, in vitro study, In-vitro, isocyanate, Octadecyl, octadecyl isocyanate, PHEMA, Platelet adhesion, Platelets, Poly(2-hydroxyethyl methacrylate), PolyHEMA, polymacon, priority journal, Protein adsorption, thrombocyte adhesion, unclassified drug, wettability, Whole blood},
	isbn = {01429612 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84865188580\&partnerID=40\&md5=81a8750115106c3d6e9fa2de862d9f70},
	author = {Fischer, M. and Baptista, C.P. and Gon{\c c}alves, I.C. and Ratner, B.D. and Sperling, C. and Werner, C. and Martins, C.L. and Barbosa, M.A.}
}
@booklet {2179,
	title = {Endothelialization of chitosan porous conduits via immobilization of a recombinant fibronectin fragment (rhFNIII                    7-10)
},
	howpublished = {Acta BiomaterialiaActa Biomater.},
	year = {2012},
	note = {Export Date: 21 November 2012Source: ScopusArticle in Pressdoi: 10.1016/j.actbio.2012.10.029Language of Original Document: EnglishCorrespondence Address: Amaral, I.F.; INEB - Instituto de Engenharia Biom{\'e}dica, Universidade do Porto, Rua do Campo Alegre, 823, 41email: iamaral@ineb.up.pt},
	month = {2012///},
	abstract = {The present study aimed to develop a pre-endothelialized chitosan (CH) porous hollowed scaffold for application in spinal cord regenerative therapies. CH conduits with different degrees of acetylation (DA; 4\% and 15\%) were prepared, characterized (microstructure, porosity and water uptake) and functionalized with a recombinant fragment of human fibronectin (rhFNIII                        7-10). Immobilized rhFNIII 
                        7-10 was characterized in terms of amount ( 
                        125I-radiolabelling), exposure of cell-binding domains (immunofluorescence) and ability to mediate endothelial cell (EC) adhesion and cytoskeletal rearrangement. Functionalized conduits revealed a linear increase in immobilized rhFNIII 
                        7-10 with rhFNIII 
                        7-10 concentration, and, for the same concentration, higher amounts of rhFNIII 
                        7-10 on DA 4\% compared with DA 15\%. Moreover, rhFNIII 
                        7-10 concentrations as low as 5 and 20 μg ml 
},
	keywords = {Protein conformation, Protein radiolabelling, Spinal cord injury, Surface grafting, Three-dimensional scaffolds},
	isbn = {17427061 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84868680582\&partnerID=40\&md5=6599fd2565f4511b94e944978afc8073},
	author = {Amaral, I.F. and Neiva, I. and Ferreira da Silva, F. and Sousa, S.R. and Piloto, A.M. and Lopes, C.D.F. and Barbosa, M.A. and Kirkpatrick, C.J. and P{\^e}go, A.P.}
}
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},
	month = {2012///},
	pages = {261 - 271},
	abstract = {An exacerbated inflammatory response questions biomaterial biocompatibility, but on the other hand, inflammation has a central role in the regulation of tissue regeneration. Therefore, it may be argued that an {\textquoteright}ideal{\textquoteright} inflammatory response is crucial to achieve efficient tissue repair/regeneration. Natural killer (NK) cells, being one of the first populations arriving at an injury site, can have an important role in regulating bone repair/regeneration, particularly through interactions with mesenchymal stem/stromal cells (MSCs). Here, we studied how biomaterials designed to incorporate inflammatory signals affected NK cell behaviour and NK cell-MSC interactions. Adsorption of the pro-inflammatory molecule fibrinogen (Fg) to chitosan films led to a 1.5-fold increase in adhesion of peripheral blood human NK cells, without an increase in cytokine secretion. Most importantly, it was found that NK cells are capable of stimulating a threefold increase in human bone marrow MSC invasion, a key event taking place in tissue repair, but did not affect the expression of the differentiation marker alkaline phosphatase (ALP). Of significant importance, this NK cell-mediated MSC recruitment was modulated by Fg adsorption. Designing novel biomaterials leading to rational modulation of the inflammatory response is proposed as an alternative to current bone regeneration strategies. {\textcopyright} 2011 The Royal Society.},
	keywords = {Adhesion, Adsorption, alkaline phosphatase, article, Biocompatibility, biomaterial, Biomaterials, blood cell, Bone, bone marrow cell, Bone Regeneration, Bone repair, cell adhesion, Cell culture, cell differentiation, cell function, cell interaction, cell invasion, Cells, chitosan, Chitosan film, cytokine, Cytokine secretions, Differentiation markers, fibrinogen, gamma interferon, human, Human bone marrow, human cell, Inflammation, Inflammatory response, Mesenchymal Stem Cells, mesenchymal stroma cell, Mesenchymal stromal cells, natural killer cell, Natural killer cells, NK cells, ossification, Pathology, Peripheral blood, Phosphatases, protein expression, Tissue, Tissue regeneration, tissue repair},
	isbn = {17425689 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84856583891\&partnerID=40\&md5=8a6b58ebb9ee4c20099877008acde805},
	author = {Almeida, C.R. and Vasconcelos, D.P. and Gon{\c c}alves, R.M. and Barbosa, M.A.}
}
@article {2181,
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	journal = {Molecular PharmaceuticsMol. Pharm.},
	volume = {9},
	year = {2012},
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},
	month = {2012///},
	pages = {3347 - 3356},
	abstract = {The interaction with cervicovaginal mucus presents the potential to impact the performance of drug nanocarriers. These systems must migrate through this biological fluid in order to deliver their drug payload to the underlying mucosal surface. We studied the ability of dapivirine-loaded polycaprolactone (PCL)-based nanoparticles (NPs) to interact with a simulated vaginal fluid (SVF) incorporating mucin. Different surface modifiers were used to produce NPs with either negative (poloxamer 338 NF and sodium lauryl sulfate) or positive (cetyltrimethylammonium bromide) surface charge. Studies were performed using the mucin particle method, rheological measurements, and real-time multiple particle tracking. Results showed that SVF presented rheological properties similar to those of human cervicovaginal mucus. Analysis of NP transport indicated mild interactions with mucin and low adhesive potential. In general, negatively charged NPs underwent subdiffusive transport in SVF, i.e., hindered as compared to their diffusion in water, but faster than for positively charged NPs. These differences were increased when the pH of SVF was changed from 4.2 to 7.0. Diffusivity was 50- and 172-fold lower in SVF at pH 4.2 than in water for negatively charged and positively charged NPs, respectively. At pH 7.0, this decrease was around 20- and 385-fold, respectively. The estimated times required to cross a layer of SVF were equal to or lower than 1.7 h for negatively charged NPs, while for positively charged NPs these values were equal to or higher than 7 h. Overall, our results suggest that negatively charged PCL NPs may be suitable to be used as carriers in order to deliver dapivirine and potentially other antiretroviral drugs to the cervicovaginal mucosal lining. Also, they further reinforce the importance in characterizing the interactions of nanosystems with mucus fluids or surrogates when considering mucosal drug delivery. {\textcopyright} 2012 American Chemical Society.},
	keywords = {microbicides, mucin, mucoadhesion, mucosal drug delivery, particle tracking, rheology},
	isbn = {15438384 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84868526145\&partnerID=40\&md5=bd161f1b2ce30fba31c7a482dbe60b86},
	author = {Das Neves, J. and Rocha, C.M.R. and Gon{\c c}alves, M.P. and Carrier, R.L. and Amiji, M. and Bahia, M.F. and Sarmento, B.}
}
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	year = {2012},
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},
	month = {2012///},
	pages = {249 - 261},
	abstract = {Human mesenchymal stem cells (hMSCs) have an enormous potential for tissue engineering and cell-based therapies. With a potential of differentiation into multiple lineages and immune-suppression, these cells play a key role in tissue remodelling and regeneration. Here a method of hMSC recruitment is described, based on the incorporation of a chemokine in Chitosan (Ch)/ Poly(γ-glutamic acid) (γ-PGA) complexes. Ch is a nontoxic, cationic polysaccharide widely investigated. γ-PGA is a hydrophilic, non-toxic, biodegradable and negatively charged poly-amino acid. Ch and γ-PGA, being oppositely charged, can be combined through electrostatic interactions. These biocompatible structures can be used as carriers for active substances and can be easily modulated in order to control the delivery of drugs, proteins, DNA, etc. Using the layer-by-layer method, Ch and γ-PGA were assembled into polyelectrolyte multilayers films (PEMs) with thickness of 120 nm. The chemokine stromal-derived factor-1 (SDF-1) was incorporated in these complexes and was continuously released during 120 h. The method of SDF-1 incorporation is of crucial importance for polymers assembly into PEMs and for the release kinetics of this chemokine. The Ch/γ-PGA PEMs with SDF-1 were able to recruit hMSCs, increasing the cell migration up to 6 fold to a maximum of 16.2 {\textpm} 4.9 cells/mm                        2. The controlled release of SDF-1 would be of great therapeutic value in the process of hMSC homing to injured tissues. This is the first study suggesting Ch/γ-PGA PEMs as SDF-1 reservoirs to recruit hMSCs, describing an efficient method of chemokine incorporation that allows a sustained released up to 5 days and that can be easily scaled-up.
},
	keywords = {adsorption kinetics, article, artificial membrane, Biocompatible Materials, biomaterial, cell differentiation, cell migration, cell motion, Cell Movement, Cell recruitment, chemistry, Chemokine CXCL12, chitosan, controlled study, CXCL12 protein, human, cytology, drug adsorption, drug delivery system, Drug Delivery Systems, drug derivative, drug effect, ellipsometry, enzyme linked immunosorbent assay, human, human cell, human tissue, Humans, in vitro study, isotope labeling, Layer-by-layer, Membranes, Artificial, Mesenchymal stem cell, Mesenchymal Stem Cells, metabolism, methodology, poly(gamma glutamic acid), poly(gamma-glutamic acid), Poly(γ-glutamic acid), polyglutamic acid, Protein delivery, static electricity, stromal cell derived factor 1, sustained drug release},
	isbn = {14732262 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84864582297\&partnerID=40\&md5=2fe4a066582cc820d2a8f9dd64fde21b},
	author = {Gon{\c c}alves, R.M. and Antunes, J.C. and Barbosa, M.A.}
}
@article {2194,
	title = {A model for educational simulation of the evolution of uterine contractions during labor},
	journal = {Computer Methods and Programs in BiomedicineComput. Methods Programs Biomed.},
	volume = {107},
	year = {2012},
	note = {Export Date: 21 November 2012Source: ScopusCODEN: CMPBEdoi: 10.1016/j.cmpb.2011.09.016PubMed ID: 22047937Language of Original Document: EnglishCorrespondence Address: Bastos, L.F.; Campus da FEUP, Rua Dr. Roberto Frias, s/n, sala I305, 4200-465 Porto, Portugal; email: lbastos@fe.up.ptReferences: Curran, C.A., Intrapartum emergencies (2003) J. Obstet. Gynecol. Neonatal Nurs., 32 (6), pp. 802-813;Guise, J.-M., Anticipating and responding to obstetric emergencies (2007) Best Pract. Res. Clin. Obstet. Gynaecol., 21 (4), pp. 625-638; 
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},
	month = {2012///},
	pages = {242 - 247},
	abstract = {Electronic fetal monitoring remains an important tool in labor ward settings, providing continuous information on fetal heart rate and maternal uterine contractions. A prompt detection of abnormalities in these signals is essential for the timely resolution of situations that may put both mother and fetus at risk. Uterine contraction signals provide information that is important to evaluate the onset and progress of labor, as well as the significance of certain fetal heart rate abnormalities. We present a model for educational simulation of the spontaneous evolution of uterine contractions during labor, which combines a previously published signal generator with literature-based pre-programmed scripts for educationally relevant scenarios. This model is an essential component of a high-fidelity simulator of intrapartum emergencies, aimed to improve the competency of healthcare providers. Real and simulated tracings were presented to three independent clinical experts who judged simulated signals to be indistinguishable or negligibly different from real tracings. {\textcopyright} 2011 Elsevier Ireland Ltd.},
	keywords = {article, clinical competence, computer memory, computer program, Computer simulation, Computer-Assisted Instruction, controlled study, Educational simulations, Essential component, Female, Fetal heart rate, Fetal monitoring, Health care, Health care providers, High-fidelity simulators, Humans, labor, Labor and delivery, medical education, Medical educational simulation, Models, Biological, Neonatal monitoring, Obstetric Labor Complications, Obstetrics, Pregnancy, Script-controlled simulation, signal detection, Signal generators, Simulated signals, User-Computer Interface, Uterine activities, Uterine activity, Uterine Contraction, Uterine Monitoring, uterus contraction},
	isbn = {01692607 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84861989435\&partnerID=40\&md5=6b5099845e4592661e2f426170d9f8b9},
	author = {Bastos, L.F. and van Meurs, W. and Ayres-de-Campos, D.}
}
@article {2204,
	title = {Neuropeptide Y Y1 receptor antagonism increases bone mass in mice},
	journal = {BoneBone},
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	year = {2012},
	note = {Export Date: 21 November 2012Source: ScopusCODEN: BONEDdoi: 10.1016/j.bone.2012.03.020PubMed ID: 22484690Language of Original Document: EnglishCorrespondence Address: Herzog, H.; Neuroscience Research Program, Garvan Institute of Medical Research, 384 Victoria St, Darlinghurst, Sydney, NSW 2010, Australia; email: h.herzog@garvan.org.auChemicals/CAS: corticosterone, 50-22-6; glucose, 50-99-7, 84778-64-3; n2 diphenylacetyl n (4 ureidomethylbenzyl)argininamide, 191868-14-1, 217977-06-5; neuropeptide Y, 82785-45-3, 83589-17-7; Arginine, 74-79-3; BIBO 3304; Glucose, 50-99-7; Receptors, Neuropeptide Y; neuropeptide Y-Y1 receptorTradenames: bibo 3304References: Karaguzel, G., Holick, M.F., Diagnosis and treatment of osteopenia (2010) Rev Endocr Metab Disord, 11, pp. 237-251;Burge, R., Dawson-Hughes, B., Solomon, D.H., Wong, J.B., King, A., Tosteson, A., Incidence and economic burden of osteoporosis-related fractures in the United States, 2005-2025 (2007) J Bone Miner Res, 22, pp. 465-475; 
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Zhang, L., Bijker, M.S., Herzog, H., The neuropeptide Y system: pathophysiological and therapeutic implications in obesity and cancer (2011) Pharmacol Ther, 131, pp. 91-113; 
Yulyaningsih, E., Zhang, L., Herzog, H., Sainsbury, A., NPY receptors as potential targets for anti-obesity drug development (2011) Br J Pharmacol, 163, pp. 1170-1202; 
Wieland, H.A., Engel, W., Eberlein, W., Rudolf, K., Doods, H.N., Subtype selectivity of the novel nonpeptide neuropeptide Y Y1 receptor antagonist BIBO 3304 and its effect on feeding in rodents (1998) Br J Pharmacol, 125, pp. 549-555; 
Polidori, C., Ciccocioppo, R., Regoli, D., Massi, M., Neuropeptide Y receptor(s) mediating feeding in the rat: characterization with antagonists (2000) Peptides, 21, pp. 29-35; 
Dailey, M.J., Bartness, T.J., Appetitive and consummatory ingestive behaviors stimulated by PVH and perifornical area NPY injections (2009) Am J Physiol Regul Integr Comp Physiol, 296, pp. R877-R892; 
Zhang, L., Lee, N.J., Nguyen, A.D., Enriquez, R.F., Riepler, S.J., Stehrer, B., Additive actions of the cannabinoid and neuropeptide Y systems on adiposity and lipid oxidation (2010) Diabetes Obes Metab, 12, pp. 591-603; 
Matsuda, H., Brumovsky, P.R., Kopp, J., Pedrazzini, T., Hokfelt, T., Distribution of neuropeptide Y Y1 receptors in rodent peripheral tissues (2002) J Comp Neurol, 449, pp. 390-404; 
Baldock, P.A., Sainsbury, A., Allison, S., Lin, E.-J.D., Couzens, M., Boey, D., Hypothalamic control of bone formation: distinct actions of leptin and Y2 receptor pathways (2005) J Bone Miner Res, 20, pp. 1851-1857; 
Kushi, A., Sasai, H., Koizumi, H., Takeda, N., Yokoyama, M., Nakamura, M., Obesity and mild hyperinsulinemia found in neuropeptide Y-Y1 receptor-deficient mice (1998) Proc Natl Acad Sci U S A, 95, pp. 15659-15664; 
Kempna, P., Korner, M., Waser, B., Hofer, G., Nuoffer, J.M., Reubi, J.C., Neuropeptide Y modulates steroid production of human adrenal H295R cells through Y1 receptors (2010) Mol Cell Endocrinol, 314, pp. 101-109; 
Burcelin, R., Brunner, H., Seydoux, J., Thorensa, B., Pedrazzini, T., Increased insulin concentrations and glucose storage in neuropeptide Y Y1 receptor-deficient mice (2001) Peptides, 22, pp. 421-427; 
Buckwalter, J.A., Cooper, R.R., Bone structure and function (1987) Instr Course Lect, 36, pp. 27-48; 
El-Sherif, N., Turitto, G., Electrolyte disorders and arrhythmogenesis (2011) Cardiol J, 18, pp. 233-245; 
Amano, S., Arai, M., Goto, S., Togari, A., Inhibitory effect of NPY on isoprenaline-induced osteoclastogenesis in mouse bone marrow cells (2007) Biochim Biophys Acta, 1770, pp. 966-973; 
Wheway, J., Mackay, C.R., Newton, R.A., Sainsbury, A., Boey, D., Herzog, H., A fundamental bimodal role for neuropeptide Y1 receptor in the immune system (2005) J Exp Med, 202, pp. 1527-1538; 
Datta, H.K., Ng, W.F., Walker, J.A., Tuck, S.P., Varanasi, S.S., The cell biology of bone metabolism (2008) J Clin Pathol, 61, pp. 577-587; 
Bedoui, S., Kawamura, N., Straub, R.H., Pabst, R., Yamamura, T., von H{\"o}rsten, S., Relevance of neuropeptide Y for the neuroimmune crosstalk (2003) J Neuroimmunol, 134, pp. 1-11; 
Allison, S.J., Baldock, P.A., Enriquez, R.F., Lin, E., During, M., Gardiner, E.M., Critical interplay between neuropeptide Y and sex steroid pathways in bone and adipose tissue homeostasis (2009) J Bone Miner Res, 24, pp. 294-304; 
Frolik, C.A., Black, E.C., Cain, R.L., Satterwhite, J.H., Brown-Augsburger, P.L., Sato, M., Anabolic and catabolic bone effects of human parathyroid hormone (1-34) are predicted by duration of hormone exposure (2003) Bone, 33, pp. 372-379; 
Vahle, J.L., Long, G.G., Sandusky, G., Westmore, M., Ma, Y.L., Sato, M., Bone neoplasms in F344 rats given teriparatide [rhPTH(1-34)] are dependent on duration of treatment and dose (2004) Toxicol Pathol, 32, pp. 426-438
},
	month = {2012///},
	pages = {8 - 16},
	abstract = {The neuropeptide Y system has emerged as one of the major neural signalling pathways regulating bone homeostasis. Absence of Y1 receptor signalling from bone forming osteoblasts is responsible for an enhancement on bone mass in mice, suggesting that pharmacological blockade of Y1 receptors may offer a novel anabolic treatment option for improving bone mass. Here we show that oral administration of the selective Y1 receptor antagonist BIBO3304 for 8. weeks dose-dependently increases bone mass in mice. Histomorphometric analysis revealed a significant 1.5-fold increase in cancellous bone volume in the femora of mice treated with BIBO3304. Furthermore, bone microarchitecture was improved, with greater trabecular number and trabecular thickness. This increase in bone mass was associated with a significant increase in bone anabolic activity of osteoblasts and, interestingly, was evident despite a coincident increase in bone resorption, as evidenced by an increase in the number of the osteolytic osteoclasts. Changes were also evident in cortical bone, with a significant increase in periosteal mineral apposition rate. Importantly, no adverse extra-skeletal side effects were observed through Y1 receptor antagonism over the 8-week treatment period, with no effects of even the higher BIBO3304 dose on body weight, adiposity, energy metabolism or circulating corticosterone levels. Taken together, this work describes the first NPY-based anabolic treatment for improving bone mass, and highlights the therapeutic potential of blocking Y1 receptor signalling for the prevention of, or recovery from, degenerative skeletal diseases. {\textcopyright} 2012 Elsevier Inc.},
	keywords = {animal experiment, animal tissue, Animals, Arginine, article, body weight, Bone Density, bone mass, bone metabolism, bone strength, cancellous bone, controlled study, cortical bone, corticosterone, corticosterone blood level, dose response, Dose-Response Relationship, Drug, drug effect, drug mechanism, drug megadose, energy metabolism, femur, food intake, glucose, glucose homeostasis, Homeostasis, male, Mice, Mice, Inbred C57BL, morphometrics, mouse, n2 diphenylacetyl n (4 ureidomethylbenzyl)argininamide, neuropeptide Y, Neuropeptide yY, nonhuman, obesity, Oral drug administration, osteoblast, osteoclast activity, Osteogenesis, osteolysis, Osteopenia, Receptors, Neuropeptide Y, signal transduction, trabecular bone, Y1 receptor antagonism},
	isbn = {87563282 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84859915620\&partnerID=40\&md5=29596d34bad3cbf751d1cbfadb63abb9},
	author = {Sousa, D.M. and Baldock, P.A. and Enriquez, R.F. and Zhang, L. and Sainsbury, A. and Lamghari, M. and Herzog, H.}
}
@article {2208,
	title = {Poor reliability of visual analysis of fetal heart rate tracings: What should be done about it?},
	journal = {American Journal of Obstetrics and GynecologyAm. J. Obstet. Gynecol.},
	volume = {206},
	year = {2012},
	note = {Export Date: 21 November 2012Source: ScopusCODEN: AJOGAdoi: 10.1016/j.ajog.2012.02.027PubMed ID: 22425405Language of Original Document: EnglishCorrespondence Address: Bernardes, J.; Institute of Biomedical Engineering, University of Porto, S. Joao Hospital, Porto, Portugal; email: jbernardes59@gmail.comReferences: Blackwell, S.C., Grobman, W.A., Antoniewicz, L., Hutchinson, M., Gyamfi Bannerman, C., Interobserver and intraobserver reliability of the NICHD 3-Tier fetal heart rate interpretation system (2011) Am J Obstet Gynecol, 205, pp. 378e1-378e5;Bernardes, J., Ayres-De-Campos, D., The persistent challenge of foetal heart rate monitoring (2010) Curr Opin Obstet Gynecol, 22, pp. 104-109; 
Ayres-De-Campos, D., Bernardes, J., Twenty-five years after the FIGO guidelines for the use of fetal monitoring: Time for a simplified approach? (2010) Int J Gynaecol Obstet, 110, pp. 1-6. , FIGO Subcommittee; 
Pehrson, C., Sorensen, J.L., Amer-W{\r a}hlin, I., Evaluation and impact of cardiotocography training programmes: A systematic review (2011) BJOG, 118, pp. 926-935
},
	month = {2012///},
	pages = { - },
	keywords = {accuracy, Cardiotocography, clinical decision making, clinical practice, computer analysis, fetus blood sampling, fetus electrocardiography, fetus heart rate, Heart Rate, Fetal, human, Humans, letter, medical education, metabolic acidosis, newborn disease, priority journal, reliability, visual acuity},
	isbn = {00029378 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84861573254\&partnerID=40\&md5=2d68d4ec0e762adf745a8b7b433023bf},
	author = {Bernardes, J. and Ayres-de-Campos, D.}
}
@article {2234,
	title = {Bone marrow-derived endothelial progenitors expressing delta-like 4 (Dll4) regulate tumor angiogenesis},
	journal = {PLoS ONEPLoS ONE},
	volume = {6},
	year = {2011},
	note = {Cited By (since 1996): 8Export Date: 21 November 2012Source: ScopusArt. No.: e18323doi: 10.1371/journal.pone.0018323Language of Original Document: EnglishCorrespondence Address: Dias, S.; Angiogenesis Laboratory, CIPM/Portuguese Institute of Oncology, Lisbon, Portugal; email: sergidias@ipolisboa.min-saude.ptChemicals/CAS: fibronectin, 86088-83-7; vasculotropin, 127464-60-2; DLL4 protein, mouse; Intracellular Signaling Peptides and Proteins; Membrane ProteinsReferences: Asahara, T., Masuda, H., Takahashi, T., Kalka, C., Pastore, C., Bone marrow origin of endothelial progenitor cells responsible for postnatal vasculogenesis in physiological and pathological neovascularization (1999) Circ Res, 85, pp. 221-228;Rafii, S., Lyden, D., Benezra, R., Hattori, K., Heissig, B., Vascular and haematopoietic stem cells: Novel targets for anti-angiogenesis therapy? (2002) Nat Rev Cancer, 2, pp. 826-835. , Review; 
Lyden, D., Hattori, K., Dias, S., Costa, C., Blaikie, P., Impaired recruitment of bone-marrow-derived endothelial and hematopoietic precursor cells blocks tumor angiogenesis and growth (2001) Nat Med, 7, pp. 1194-1201; 
Larrivee, B., Niessen, K., Pollet, I., Corbel, S.Y., Long, M., Minimal contribution of marrow-derived endothelial precursors to tumor vasculature (2005) J Immunol, 175, pp. 2890-2899; 
Peters, B.A., Diaz, L.A., Polyak, K., Meszler, L., Romans, K., Contribution of bone marrow-derived endothelial cells to human tumor vasculature (2005) Nat Med, 11, pp. 261-262; 
Pasquier, E., Dias, S., Endothelial progenitor cells: Hope beyond controversy (2010) Curr Cancer Drug Targets, 10 (8), pp. 914-921; 
Dudley, A.C., Udagawa, T., Melero-Martin, J.M., Shih, S.C., Curatolo, A., Bone marrow is a reservoir for proangiogenic myelomonocytic cells but not endothelial cells in spontaneous tumors (2010) Blood, 116 (17), pp. 2267-2271; 
Krebs, L.T., Xue, Y., Norton, C.R., Shutter, J.R., Maguire, M., Notch signaling is essential for vascular morphogenesis in mice (2000) Genes Dev, 14, pp. 1343-1352; 
Uyttendaele, H., Ho, J., Rossant, J., Kitajewski, J., Vascular patterning defects associated with expression of activated Notch4 in embryonic endothelium (2001) Proc Natl Acad Sci U S A, 98, pp. 5643-5648; 
Duarte, A., Hirashima, M., Benedito, R., Trindade, A., Diniz, P., Dosage-sensitive requirement for mouse Dll4 in artery development (2004) Genes Dev, 18, pp. 2474-2478; 
Gale, N.W., Dominguez, M.G., Noguera, I., Pan, L., Hughes, V., Haploinsufficiency of delta-like 4 ligand results in embryonic lethality due to major defects in arterial and vascular development (2004) Proc Natl Acad Sci U S A, 101, pp. 15949-15954; 
Carmeliet, P., Ferreira, V., Breier, G., Pollefeyt, S., Kieckens, L., Abnormal blood vessel development and lethality in embryos lacking a single VEGF allele (1996) Nature, 380, pp. 435-439; 
Mailhos, C., Modlich, U., Lewis, J., Harris, A., Bicknell, R., Delta4, an endothelial specific notch ligand expressed at sites of physiological and tumor angiogenesis (2001) Differentiation, 69, pp. 135-144; 
Oliner, J., Min, H., Leal, J., Yu, D., Rao, S., Suppression of angiogenesis and tumor growth by selective inhibition of angiopoietin-2 (2004) Cancer Cell, 6, pp. 507-516; 
Patel, N.S., Li, J.L., Generali, D., Poulsom, R., Cranston, D.W., Up-regulation of delta-like 4 ligand in human tumor vasculature and the role of basal expression in endothelial cell function (2005) Cancer Res, 65, pp. 8690-8697; 
Williams, C.K., Li, J.L., Murga, M., Harris, A.L., Tosato, G., Up-regulation of the Notch ligand Delta-like 4 inhibits VEGF-induced endothelial cell function (2006) Blood, 107, pp. 931-939; 
Caiado, F., Real, C., Carvalho, T., Dias, S., Notch pathway modulation on bone marrow-derived vascular precursor cells regulates their angiogenic and wound healing potential (2008) PLoS One, 3, pp. e3752; 
Escudier, B., Eisen, T., Stadler, W.M., Szczylik, C., Oudard, S., Sorafenib in advanced clear-cell renal-cell carcinoma (2007) N Engl J Med, 356, pp. 125-134; 
Llovet, J.M., Ricci, S., Mazzaferro, V., Hilgard, P., Gane, E., Sorafenib in advanced hepatocellular carcinoma (2008) N Engl J Med, 359, pp. 378-390; 
Motzer, R.J., Bukowski, R.M., Targeted therapy for metastatic renal cell carcinoma (2006) J Clin Oncol, 24, pp. 5601-5608; 
Bergers, G., Hanahan, D., Modes of resistance to anti-angiogenic therapy (2008) Nat Rev Cancer, 8, pp. 592-603; 
Verheul, H.M., Pinedo, H.M., Possible molecular mechanisms involved in the toxicity of angiogenesis inhibition (2007) Nat Rev Cancer, 7, pp. 475-485; 
Noguera-Troise, I., Daly, C., Papadopoulos, N.J., Coetzee, S., Boland, P., Blockade of Dll4 inhibits tumour growth by promoting non-productive angiogenesis (2006) Nature, 444, pp. 1032-1037; 
Ridgway, J., Zhang, G., Wu, Y., Stawicki, S., Liang, W.C., Inhibition of Dll4 signalling inhibits tumour growth by deregulating angiogenesis (2006) Nature, 444, pp. 1083-1087; 
Moore, M.A., Hattori, K., Heissig, B., Shieh, J.H., Dias, S., Mobilization of endothelial and hematopoietic stem and progenitor cells by adenovector-mediated elevation of serum levels of SDF-1, VEGF, and angiopoietin-1 (2001) Ann N Y Acad Sci, 938, pp. 36-45. , discussion 45-37; 
Yamaguchi, J., Kusano, K.F., Masuo, O., Kawamoto, A., Silver, M., Stromal cell-derived factor-1 effects on ex vivo expanded endothelial progenitor cell recruitment for ischemic neovascularization (2003) Circulation, 107, pp. 1322-1328; 
Leslie, J.D., Ariza-McNaughton, L., Bermange, A.L., McAdow, R., Johnson, S.L., Endothelial signalling by the Notch ligand Delta-like 4 restricts angiogenesis (2007) Development, 134, pp. 839-844; 
Trindade, A., Kumar, S.R., Scehnet, J.S., Lopes-da-Costa, L., Becker, J., Overexpression of delta-like 4 induces arterialization and attenuates vessel formation in developing mouse embryos (2008) Blood, 112, pp. 1720-1729; 
Huang, M.T., Mason, J.C., Birdsey, G.M., Amsellem, V., Gerwin, N., Endothelial intercellular adhesion molecule (ICAM)-2 regulates angiogenesis (2005) Blood, 106, pp. 1636-1643; 
Deutsch, U., Schlaeger, T.M., Dehouck, B., Doring, A., Tauber, S., Inducible endothelial cell-specific gene expression in transgenic mouse embryos and adult mice (2008) Exp Cell Res, 314, pp. 1202-1216; 
Dias, S., Thomas, H., Balkwill, F., Multiple molecular and cellular changes associated with tumour stasis and regression during IL-12 therapy of a murine breast cancer model (1998) Int J Cancer, 75 (1), pp. 151-157; 
Scott, K.A., Holdsworth, H., Balkwill, F.R., Dias, S., Exploiting changes in the tumour microenvironment with sequential cytokine and matrix metalloprotease inhibitor treatment in a murine breast cancer model (2000) Br J Cancer, 83 (11), pp. 1538-1543
},
	month = {2011///},
	abstract = {Neo-blood vessel growth (angiogenesis), which may involve the activation of pre-existing endothelial cells (EC) and/or the recruitment of bone marrow-derived vascular precursor cells (BM-VPC), is essential for tumor growth. Molecularly, besides the well established roles for Vascular endothelial growth factor (VEGF), recent findings show the Notch signalling pathway, in particular the ligand Delta-like 4 (Dll4), is also essential for adequate tumor angiogenesis; Dll4 inhibition results in impaired, non-functional, angiogenesis and reduced tumor growth. However, the role of BM-VPC in the setting of Notch pathway modulation was not addressed and is the subject of the present report. Here we show that SDF-1 and VEGF, which are produced by tumors, increase Dll4 expression on recruited BM-VPC. Mechanistically, BM-VPC activated, in a Dll4-dependent manner, a transcriptional program on mature EC suggestive of EC activation and stabilization. BM-VPC induced ICAM-2 and Fibronectin expression on EC, an effect that was blocked by a Dll4-specific neutralizing antibody. In vivo, transplantation of BM-VPC with decreased Dll4 into tumor-bearing mice resulted in the formation of microvessels with decreased pericyte coverage and reduced fibronectin expression. Consequently, transplantation of BM-VPC with decreased Dll4 resulted in impaired tumor angiogenesis, increased tumor hypoxia and apoptosis, and decreased tumor growth. Taken together, our data suggests that Dll4 expression by BM-VPC affects their communication with tumor vessel endothelial cells, thereby modulating tumor angiogenesis by affecting vascular stability. {\textcopyright} 2011 Real et al.},
	keywords = {angiogenesis, animal, animal cell, animal tissue, Animals, apoptosis, article, blood vessel, Blood Vessels, bone marrow, bone marrow cell, Bone Marrow Cells, cell activation, Cell Line, Tumor, cell proliferation, controlled study, cytology, delta like 4 protein, DLL4 protein, mouse, Endothelial Cells, endothelium cell, Female, Fibronectin, gene expression, gene expression regulation, genetics, human, human cell, Humans, hypoxia, in vitro study, in vivo study, intercellular adhesion molecule 2, Intracellular Signaling Peptides and Proteins, membrane protein, Membrane Proteins, metabolism, Mice, mouse, Mus, neoplasm, Neoplasms, neovascularization (pathology), Neovascularization, Pathologic, neutralizing antibody, nonhuman, Notch receptor, Pathology, pericyte, protein expression, signal peptide, solid tumor, stem cell, stem cell transplantation, Stem cells, stromal cell derived factor 1, tumor cell line, tumor growth, unclassified drug, vascularization, vasculotropin},
	isbn = {19326203 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-79953685607\&partnerID=40\&md5=60a33b7d91c1502050bc560303255881},
	author = {Real, C. and Rem{\'e}dio, L. and Caiado, F. and Igreja, C. and Borges, C. and Trindade, A. and Pinto-Do-{\'O}, P. and Yagita, H. and Duarte, A. and Dias, S.}
}
@article {2230,
	title = {Complexity and categorical analysis may improve the interpretation of agreement studies using continuous variables},
	journal = {Journal of Evaluation in Clinical PracticeJ. Eval. Clin. Pract.},
	volume = {17},
	year = {2011},
	note = {Cited By (since 1996): 2Export Date: 21 November 2012Source: ScopusCODEN: JECPFdoi: 10.1111/j.1365-2753.2011.01668.xPubMed ID: 21489051Language of Original Document: EnglishCorrespondence Address: Costa-Santos, C.; Department of Biostatistics and Medical Informatics, Faculty of Medicine, University of Porto, Al. Prof. Hern{\^a}ni Monteiro, 4200-319 Porto, Portugal; email: csantos@med.up.ptReferences: Costa Santos, C., Costa Pereira, A., Bernardes, J., Agreement studies in obstetrics and gynaecology: Inappropriateness, controversies and consequences (2005) BJOG: An International Journal of Obstetrics and Gynaecology, 112 (5), pp. 667-669. , DOI 10.1111/j.1471-0528.2004.00505.x;Khan, K.S., Chien, P.F., Evaluation of a clinical test. I: Assessment of reliability (2001) BJOG, 108, pp. 562-567; 
Luiz, R.R., Szklo, M., More than one statistical strategy to assess agreement of quantitative measurements may usefully be reported (2005) Journal of Clinical Epidemiology, 58 (3), pp. 215-216. , DOI 10.1016/j.jclinepi.2004.07.007; 
Costa-Santos, C., Bernardes, J., Ayres-De-Campos, D., Costa, A., Costa, C., The limits of agreement and the intraclass correlation coefficient may be inconsistent in the interpretation of agreement (2011) Journal of Clinical Epidemiology, 64 (3), pp. 264-269; 
Costa-Santos, C., Antunes, L., Souto, A., Bernardes, J., Assessment of disagreement: A new information-based approach (2010) Annals of Epidemiology, 20, pp. 555-561; 
Luiz, R.R., Costa, A.J.L., Kale, P.L., Werneck, G.L., Assessment of agreement of a quantitative variable: A new graphical approach (2003) Journal of Clinical Epidemiology, 56 (10), pp. 963-967. , DOI 10.1016/S0895-4356(03)00164-1; 
Plsek, P.E., Greenhalgh, T., The challenge of complexity in health care (2001) British Medical Journal, 323 (7313), pp. 625-628; 
Shiell, A., Hawe, P., Gold, L., Complex interventions or complex systems? Implications for health economic evaluation (2008) BMJ, 336 (7656), pp. 1281-1283; 
Wilson, T., Holt, T., Complexity science: Complexity and clinical care (2001) British Medical Journal, 323 (7314), pp. 685-688; 
Miles, A., Complexity in medicine and healthcare: People and systems, theory and practice (2009) Journal of Evaluation in Clinical Practice, 15 (3), pp. 409-410; 
Shannon, {\^I}., A mathematical theory of communication (1948) Bell System Technical Journal, 27, pp. 379-423. , 623- 656; 
Bernardes, J., Costa-Pereira, A., Ayres-De-Campos, D., Van Geijn, H.P., Pereira-Leite, L., Evaluation of interobserver agreement of cardiotocograms (1997) International Journal of Gynecology and Obstetrics, 57 (1), pp. 33-37. , DOI 10.1016/S0020-7292(97)02846-4, PII S0020729297028464; 
Ayres-De-Campos, D., Bernardes, J., Costa-Pereira, A., Pereira-Leite, L., Inconsistencies in classification by experts of cardiotocograms and subsequent clinical decision (1999) British Journal of Obstetrics and Gynaecology, 106, pp. 1307-1310; 
Rooth, G., Guidelines for the use of fetal monitoring (1987) International Journal of Gynaecology and Obstetrics, 25, pp. 159-167; 
Grant, J.M., The fetal heart rate is normal, isn{\textquoteright}t it? Observer agreement of categorical assessments (1991) Lancet, 337, pp. 215-218; 
M{\"u}ller, R., B{\"u}ttner, P., A critical discussion of intraclass correlation coefficients (1994) Statistics in Medicine, 13, pp. 2465-2476; 
Byrt, T., Bishop, J., Carlin, J.B., Bias, prevalence and kappa (1993) Journal of Clinical Epidemiology, 46 (5), pp. 423-429. , DOI 10.1016/0895-4356(93)90018-V; 
West, B.J., Homeostasis and Gauss statistics: Barriers to understanding natural variability (2010) Journal of Evaluation in Clinical Practice, 16, pp. 403-408; 
Goncalves, H., Rocha, A.P., Ayres-de-Campos, D., Bernardes, J., Linear and nonlinear fetal heart rate analysis of normal and acidemic fetuses in the minutes preceding delivery (2006) Medical and Biological Engineering and Computing, 44 (10), pp. 847-855. , DOI 10.1007/s11517-006-0105-6; 
Costa Santos, C., Vitanyi, P.M.B., Bernardes, J., Antunes, L., Clustering fetal heart rate tracings by compression (2006) Proceedings - IEEE Symposium on Computer-Based Medical Systems, 2006, pp. 685-690. , DOI 10.1109/CBMS.2006.68, 1647650, Proceedings - 19th IEEE International Symposium on Computer-Based Medical Systems, CBMS 2006
},
	month = {2011///},
	pages = {511 - 514},
	abstract = {Rationale Complex clinical scenarios involving a high degree of uncertainty frequently lead to a poor agreement over diagnosis and management. However, inconsistent results can be found with the most widely used measures of agreement for continuous variables - the limits of agreement and the intraclass correlation coefficient. Aims and objectives We aim to improve the interpretation of agreement studies using continues variables. Methods and results Evaluation of agreement may be improved by complexity analysis and by categorization of variables, followed by the use of the proportions of agreement. Conclusions The average never characterizes a complex phenomenon and the methods used to access agreement in continuous variables are based on the mean. For future agreement studies, involving complex continuous variables, we recommend a complexity and categorical analysis. {\textcopyright} 2011 Blackwell Publishing Ltd.},
	keywords = {article, Biomedical research, Cardiotocography, clinical decision making, clinical practice, complexity, Data Interpretation, Statistical, Decision Making, entropy, Female, fetus heart rate, Heart Rate, Fetal, human, Humans, observer variation, Pregnancy, Pregnancy Outcome, priority journal, Reproducibility of Results, statistical data interpretation, Uncertainty},
	isbn = {13561294 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-79956081274\&partnerID=40\&md5=bd7376dca48228f4c4b1b21389689596},
	author = {Costa-Santos, C. and Bernardes, J. and Antunes, L. and Ayres-de-Campos, D.}
}
@article {2232,
	title = {Interactions of leukocytes and platelets with poly(lysine/leucine) immobilized on tetraethylene glycol-terminated self-assembled monolayers},
	journal = {Acta BiomaterialiaActa Biomater.},
	volume = {7},
	year = {2011},
	note = {Cited By (since 1996): 3Export Date: 21 November 2012Source: Scopusdoi: 10.1016/j.actbio.2011.01.013PubMed ID: 21237292Language of Original Document: EnglishCorrespondence Address: Martins, M. C. L.; Instituto de Engenharia Biom{\'e}dica, Divis{\~a}o de Biomateriais, Universidade Do Porto, Rua do Campo Alegre, 823, 4150-180 Porto, Portugal; email: cmartins@ineb.up.ptChemicals/CAS: heparin, 37187-54-5, 8057-48-5, 8065-01-8, 9005-48-5; leucine, 61-90-5, 7005-03-0; polylysine, 25104-18-1, 25988-63-0, 33960-24-6, 38000-06-5, 73565-56-7; Ethylene Glycol, 107-21-1; Imidazoles; Immobilized Proteins; N,N-carbonyldiimidazole, 530-62-1; Polyethylene Glycols; Polylysine, 25104-18-1; ProteinsReferences: Dailey, J., (1998) Blood, , 2nd ed. Ipswich (MA, USA): Medical Consulting Group;Section V: Chronic intermittent haemodialysis and prevention of clotting in the extracorporal system (2002) Nephrol Dial Transplant, 17 (SUPPL. 7), pp. 63-71. , European Best Practice Guidelines Working Group; 
Martins, M.C., Curtin, S.A., Freitas, S.C., Salgueiro, P., Ratner, B.D., Barbosa, M.A., Molecularly designed surfaces for blood deheparinization using an immobilized heparin-binding peptide (2009) J Biomed Mater Res A, 88, pp. 162-173; 
Love, J.C., Estroff, L.A., Kriebel, J.K., Nuzzo, R.G., Whitesides, G.M., Self-assembled monolayers of thiolates on metals as a form of nanotechnology (2005) Chemical Reviews, 105 (4), pp. 1103-1169. , DOI 10.1021/cr0300789; 
Cardin, A.D., Weintraub, H.J.R., Molecular modeling of protein-glycosaminoglycan interactions (1989) Arteriosclerosis, 9 (1), pp. 21-32; 
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Martins, M.C.L., Ratner, B.D., Barbosa, M.A., Protein adsorption on mixtures of hydroxyl- and methyl-terminated alkanethiols self-assembled monolayers (2003) Journal of Biomedical Materials Research - Part A, 67 (1), pp. 158-171; 
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Goncalves, I.C., Martins, M.C., Barbosa, M.A., Naeemi, E., Ratner, B.D., Selective protein adsorption modulates platelet adhesion and activation to oligo(ethylene glycol)-terminated self-assembled monolayers with C18 ligands (2009) J Biomed Mater Res, 89 A, pp. 642-653; 
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},
	month = {2011///},
	pages = {1949 - 1955},
	abstract = {Surfaces that bind heparin are important for biomaterials for blood deheparinization. In our recent work it was demonstrated that a polypeptide composed of l-lysine and l-leucine (pKL), after immobilization onto tetra(ethylene glycol) terminated self-assembled monolayers (EG4-SAMs), can bind heparin from blood plasma in a selective, concentration-dependent way. During this work the effect of this peptide on platelet adhesion and activation and leukocyte adhesion was studied. The surface charge of these nanostructured surfaces was evaluated in order to correlate the effect of positively charged amine groups and hydrophobic methyl groups on the behavior of platelets and leukocyte adhesion. The results demonstrated that the presence of pKL decreased leukocyte adhesion to EG4-SAMs at all concentrations used. This effect is even more pronounced when surfaces were pre-immersed in heparinized plasma. In contrast, there is an increase in platelet adhesion and activation with increased percentage immobilized pKL. This effect is enhanced when surfaces were pre-immersed in heparinized plasma. However, adsorbed pKL in very low amounts does not induce platelet adhesion and activation compared with EG4, even when pre-immersed in plasma. Since only low pKL amounts are necessary to induce heparin selectivity, these results are promising for the development of heparin-binding biomaterials for blood deheparinization. {\textcopyright} 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.},
	keywords = {article, Blood Platelets, Cell Communication, Cell Shape, Ethylene Glycol, heparin, heparin binding protein, Humans, hydrophobicity, Imidazoles, Immobilized Proteins, leucine, leukocyte, leukocyte adherence, Leukocytes, methyl group, nanomaterial, plasma, Platelet Adhesiveness, Platelets, Polyethylene Glycols, polylysine, polypeptide, priority journal, Proteins, self assembled monolayer, Self-assembled monolayers, static electricity, Surface charge, Surface Properties, Tetra, thrombocyte, thrombocyte adhesion},
	isbn = {17427061 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-79953868334\&partnerID=40\&md5=2cb5b44223fe6e8106b513b80689103d},
	author = {Martins, M.C.L. and Ochoa-Mendes, V. and Ferreira, G. and Barbosa, J.N. and Curtin, S.A. and Ratner, B.D. and Barbosa, M.A.}
}
@article {2225,
	title = {Knowledge of adverse neonatal outcome alters clinicians{\textquoteright} interpretation of the intrapartum cardiotocograph},
	journal = {BJOG: An International Journal of Obstetrics and GynaecologyBJOG Int. J. Obstet. Gynaecol.},
	volume = {118},
	year = {2011},
	note = {Cited By (since 1996): 2Export Date: 21 November 2012Source: ScopusCODEN: BIOGFdoi: 10.1111/j.1471-0528.2011.03003.xPubMed ID: 21609381Language of Original Document: EnglishCorrespondence Address: Ayres-de-Campos, D.; Departmento de Ginecologia e Obstetr{\'\i}cia, Faculdade de Medicina do Porto, 4200-309 Porto, Portugal; email: dcampos@med.up.ptReferences: (2006) Perinatal Mortality Surveillance 2004: England, Wales and Northern Ireland, , CEMACH - Centre for Maternal and Child Enquiries (previously Confidential Enquiries into Maternal and Child Health). London: CEMACH;(1997) CESDI - Confidential Enquiry into Stillbirths and Deaths in Infancy, , 4th Annual Report. London: CESDI; 
Wood, C., Renou, P., Oats, J., A controlled trial of fetal heart rate monitoring in a low-risk obstetric population (1981) American Journal of Obstetrics and Gynecology, 141 (5), pp. 527-534; 
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Shy, K.K., Luthy, D.A., Bennett, F.C., Whitfield, M., Larson, E.B., Van Belle, G., Hughes, J.P., Stenchever, M.A., Effects of electronic fetal-heart-rate monitoring, as compared with periodic auscultation, on the neurologic development of premature infants (1990) New England Journal of Medicine, 322 (9), pp. 588-593; 
Dillner, L., Babies{\textquoteright} deaths linked to suboptimal care (1995) Br Med J, 310, p. 757; 
Ayres-de-Campos, D., Bernardes, J., Costa-Pereira, A., Pereira-Leite, L., Inconsistencies in classification by experts of cardiotocograms and subsequent clinical decision (1999) Br J Obstet Gynaecol, 106, pp. 1307-1310; 
Palomaki, O., Luukkaala, T., Luoto, R., Tuimala, R., Intrapartum cardiotocography - The dilemma of interpretational variation (2006) Journal of Perinatal Medicine, 34 (4), pp. 298-302. , DOI 10.1515/JPM.2006.057, PII JPME344298; 
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},
	month = {2011///},
	pages = {978 - 983},
	abstract = {Objective: To evaluate the impact of knowledge of neonatal outcome on clinicians{\textquoteright} interpretation of the intrapartum cardiotocograph (CTG). Design: Prospective evaluation of pre-recorded cases. Setting: Five maternity hospitals. Population: From a database of intrapartum CTGs acquired with a scalp electrode in singleton near-term fetuses, 20 tracings were sequentially selected from cases with newborn umbilical artery pH < 7.05 and 20 from cases with pH > 7.20. Methods: Five experienced obstetricians practising in different maternity hospitals were asked to analyse the 40 tracings individually, according to the International Federation of Gynaecology and Obstetrics guidelines. In a first round, clinicians were given no information on neonatal outcome. In a second round, carried out 2 months later, clinicians were asked to analyse the same tracings, but the order was randomly altered and information on the newborn{\textquoteright}s arterial pH was provided. Clinicians were not informed of the purpose of the study or whether the tracings were the same. Main outcome measures: The incidence of individual fetal heart rate feature identification and tracing classification, before and after neonatal outcome was made available. Results: In the group with pH < 7.05, repetitive decelerations and reduced variability were more common in the second round (P < 0.001 and P = 0.001, respectively), as was a pathological classification (P = 0.002); variable decelerations were less common (P = 0.008). In the group with normal pH, less tracings in the second round had prolonged decelerations (P = 0.013) and no accelerations (P = 0.013), but more had pronounced decelerations (P = 0.031) and reduced variability (P = 0.007); there was a reduction in pathological classifications, but this difference failed to reach statistical significance (P = 0.051). Conclusions: A knowledge of adverse neonatal outcome leads to a more severe classification of the intrapartum CTG, which derives mainly from the evaluation of decelerations and variability. {\textcopyright} 2011 The Authors BJOG An International Journal of Obstetrics and Gynaecology {\textcopyright} 2011 RCOG.},
	keywords = {adverse outcome, Agreement, article, bradycardia, Cardiotocography, clinical competence, Female, Fetal, Fetal hypoxia, Fetal monitoring, fetus heart rate, fetus outcome, health practitioner, Heart rate, Heart Rate, Fetal, human, Humans, Hydrogen-Ion Concentration, incidence, Infant, Newborn, intrapartum care, Labor, Obstetric, medical practice, pH, practice guideline, Practice Guidelines as Topic, Pregnancy, Pregnancy Outcome, priority journal, Prospective Studies, Questionnaires, Reference Standards, Reproducibility of Results, Research Design, Risk Factors, Sweden, tachycardia, umbilical artery},
	isbn = {14700328 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-79959836242\&partnerID=40\&md5=6b43f72dfcfa8829dfc5395ed140ab7b},
	author = {Ayres-de-Campos, D. and Arteiro, D. and Costa-Santos, C. and Bernardes, J.}
}
@article {2215,
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},
	month = {2011///},
	pages = {4183 - 4195},
	abstract = {Chitosan (Ch) is a nontoxic and biocompatible polysaccharide extensively used in biomedical applications. Ch, as a polycation, can be combined with anionic polymers by layer-bylayer (LbL) self-assembly, giving rise to multilayered complexed architectures. These structures can be used in tissue engineering strategies, as drug delivery systems, or artificial matrices mimicking the extracellular microenvironment. In this work, Ch was combined with poly(γ-glutamic acid) (γ-PGA). γ-PGA is a polyanion, which was microbially produced, and is known for its low immunogenic reaction and low cytotoxicity. Multilayered ultrathin films were assembled by LbL, with a maximum of six layers. The interaction between both polymers was analyzed by: ellipsometry, quartz crystal microbalance with dissipation, Fourier transform infrared spectroscopy, atomic force microscopy, and zeta potential measurements. Ch/γ-PGA polyelectrolyte multilayers (PEMs) revealed no cytotoxicity according to ISO 10993-5. Overall, this study demonstrates that Ch can interact electrostatically with γ-PGA forming multilayered films. Furthermore, this study provides a comprehensive characterization of Ch/γ-PGA PEM structures, elucidating the contribution of each layer for the nanostructured films. These model surfaces can be useful substrates to study cell-biomaterial interactions in tissue regeneration. {\textcopyright} 2011 American Chemical Society.},
	keywords = {Amino acids, Anionic polymers, article, Atomic force microscopy, Atomic spectroscopy, Biocompatible Materials, Biocompatible polysaccharides, Biomaterials, Biomedical applications, Cell-biomaterial interactions, chemical interaction, chitosan, controlled study, Cytotoxicity, Drug delivery, drug delivery system, Drug Delivery Systems, Electrolytes, ellipsometry, enzyme activity, Extracellular, Fourier transform infrared spectroscopy, Glutamic acid, immunogenicity, infrared spectroscopy, Layer by layer self assembly, Medical applications, microenvironment, Microenvironments, Microscopy, Atomic Force, Model surface, Models, Molecular, Multi-layered, Multi-layered films, Multilayers, nanofilm, Nanostructured Films, polyanion, Polyanions, Polycations, polyelectrolyte, Polyelectrolyte complexes, Polyelectrolyte multilayer, Polyelectrolytes, Polyethylenes, polyglutamic acid, Polymers, priority journal, Programmed control systems, Quartz, quartz crystal microbalance, Quartz crystal microbalance with dissipation, Self assembly, Tissue, Tissue engineering, Tissue regeneration, Ultrathin films, Viscoelastic Substances, Zeta potential, Zeta potential measurements},
	isbn = {15257797 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84856258191\&partnerID=40\&md5=8ba447b7a45e8004e5b3aa3d5cff2404},
	author = {Antunes, J.C. and Pereira, C.L. and Molinos, M. and Ferreira-da-Silva, F. and Dessi, M. and Gloria, A. and Ambrosio, L. and Gonca̧lves, R.M. and Barbosa, M.A.}
}
@article {2238,
	title = {The limits of agreement and the intraclass correlation coefficient may be inconsistent in the interpretation of agreement},
	journal = {Journal of Clinical EpidemiologyJ. Clin. Epidemiol.},
	volume = {64},
	year = {2011},
	note = {Cited By (since 1996): 13Export Date: 21 November 2012Source: ScopusCODEN: JCEPEdoi: 10.1016/j.jclinepi.2009.11.010PubMed ID: 20189765Language of Original Document: EnglishCorrespondence Address: Costa-Santos, C.; Biostatistics and Medical Informatics Department, Faculty of Medicine, University of Porto, Al. Prof. Hern{\^a}ni Monteiro, 4200-319 Porto, Portugal; email: csantos@med.up.ptReferences: De Vet, H., Observer reliability and agreement (1999) Encyclopedia of Biostatistics, pp. 3123-3127;Ayres-De-Campos, D., Bernardes, J., Costa-Pereira, A., Pereira-Leite, L., Inconsistencies in expert{\textquoteright}s classification of cardiotocograms and subsequent clinical decision (1999) Br J Obstet Gynaecol, 106, pp. 1307-1310; 
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},
	month = {2011///},
	pages = {264 - 269},
	abstract = {Objective: To compare the interpretation of agreement in the prediction of neonatal outcome variables, using the limits of agreement (LA) and the intraclass correlation coefficient (ICC). Study Design and Setting: Three obstetricians were asked to predict neonatal outcomes independently based on the evaluation of intrapartum cardiotocographic tracings. Interobserver agreement was assessed with the LA and the ICC, and the results obtained were interpreted by six clinicians and six statisticians on a scale that established agreement as very poor, poor, fair, good, or very good. Results: Interpretation of the LA results was less consensual than the ICC results, with proportions of agreement of 0.36 (95\% confidence interval [CI]: 0.28-0.44) vs. 0.63 (95\% CI: 0.54-0.73), respectively. LA results suggested a fair to good agreement among obstetricians, whereas interpretation of ICC results suggested a poor to fair agreement. LA results were more plausible with reality, suggesting that obstetricians predicted neonatal outcomes better than randomly generated values, whereas it was not always the case with the ICC. Conclusions: LA and ICC can provide inconsistent results in agreement studies. Accordingly, in the absence of better strategies to assess agreement, both should be used for this purpose, but their results need to be interpreted with caution keeping their respective limitations in mind. {\textcopyright} 2011 Elsevier Inc. All rights reserved.},
	keywords = {Agreement, Apgar score, Cardiotocography, correlation coefficient, Female, Fetal Blood, human, Humans, Hydrogen-Ion Concentration, Infant, Newborn, intrapartum care, limit of agreement, newborn assessment, normal human, observer variation, Obstetrics, outcome variable, Pregnancy, Pregnancy Outcome, priority journal, reproducibility, Reproducibility of Results, review, statistical data interpretation, statistical parameters, Umbilical Arteries, Umbilical artery blood pH, umbilical cord blood},
	isbn = {08954356 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-78751646336\&partnerID=40\&md5=a64bd277d4122b8ce3affa5f3d5d68a5},
	author = {Costa-Santos, C. and Bernardes, J. and Ayres-de-Campos, D. and Costa, A. and Costa, C.}
}
@article {2235,
	title = {Molecularly designed alginate hydrogels susceptible to local proteolysis as three-dimensional cellular microenvironments},
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	year = {2011},
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},
	month = {2011///},
	pages = {1674 - 1682},
	abstract = {The development of sophisticated three-dimensional (3-D) cell culture microenvironments that recreate some of the complexity of the natural extracellular matrix (ECM) remains a challenging task. Here, the modification of alginate through partial crosslinking with a matrix metalloproteinase (MMP) cleavable peptide (proline-valine-glycine-leucine-isoleucine-glycine, PVGLIG) is described, and its use in the preparation of injectable, in situ crosslinkable hydrogel-like matrices is proposed. PVGLIG-grafted alginates were synthesized by carbodiimide chemistry and characterized. Their biological performance was evaluated by comparing the response of 3-D cultured mesenchymal stem cells (MSCs) to alginate hydrogels containing only cell-adhesion peptides (RGD-alginate) or both peptides (PVGLIG/RGD-alginate). After 1 week, cells remained essentially round within RGD-alginate, while they exhibited an elongated morphology within PVGLIG/RGD-alginate hydrogels, forming cellular networks. This suggests that cells were able to structurally reorganize the matrix, through enzymatic hydrolysis of PVGLIG residues, overcoming biophysical hydrogel resistance. As shown by gelatine-zymography, MSC presented higher activity of MMP-2 when cultured within alginate functionalized with MMP-sensitive peptide, suggesting that the cell{\textquoteright}s proteolytic phenotype was modulated by the matrix composition. Additionally, PVGLIG/RGD-alginate hydrogels were clearly degraded in cell culture. Taken together, the results demonstrate that the co-incorporation of MMP-labile peptides in cell-adhesive RGD-alginate hydrogels improved their performance as ECM analogues, providing a more dynamic and physiological 3-D cellular microenvironment. {\textcopyright} 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.},
	keywords = {3-D Cell culture, Alginate, Alginates, alginic acid, Amino Acid Sequence, article, cell adhesion, cell composition, Cell Count, Cell culture, Cell Culture Techniques, Cell Shape, cell structure, cell survival, cell viability, Cells, Cultured, controlled study, Enzyme Activation, enzyme activity, extracellular matrix, Extracellular matrix (ECM), gelatin, gelatinase A, Glucuronic Acid, Hexuronic Acids, human, human cell, Humans, hydrogel, Hydrogels, hydrolysis, matrix metalloproteinase, Matrix Metalloproteinases, Matrix metalloproteinases (MMPs), Mesenchymal stem cell, Mesenchymal Stem Cells, Molecular Sequence Data, morphology, peptide derivative, Peptides, phenotype, priority journal, prolylvalylglycylleucylisoleucylglycine, Protease-sensitive, protein cleavage, protein degradation, Protein Processing, Post-Translational, Subcellular Fractions, tumor microenvironment, unclassified drug, zymography},
	isbn = {17427061 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-79952189303\&partnerID=40\&md5=191596b948bd4cc2569264a992052b88},
	author = {Fonseca, K.B. and Bidarra, S.J. and Oliveira, M.J. and Granja, P.L. and Barrias, C.C.}
}
@article {2216,
	title = {Novel TiN                    x-based biosignal electrodes for electroencephalography
},
	journal = {Measurement Science and TechnologyMeas. Sci. Technol.},
	volume = {22},
	year = {2011},
	note = {Cited By (since 1996): 1Export Date: 21 November 2012Source: ScopusArt. No.: 124007CODEN: MSTCEdoi: 10.1088/0957-0233/22/12/124007Language of Original Document: EnglishCorrespondence Address: Fiedler, P.; Institute of Biomedical Engineering and Informatics, Ilmenau University of Technology, Gustav-Kirchhoff-Str. 2, 98693 Ilmenau, Germany; email: patrique.fiedler@tu-ilmenau.deReferences: Teplan, M., Fundamentals of EEG measurement (2002) Meas. Sci. Rev., 2, p. 2. , 1-11;Fonseca, C., Silva Cunha, J.P., Martins, R.E., Ferreira, V.M., Marques De Sa, J.P., Barbosa, M.A., Martins Da Silva, A., A novel dry active electrode for EEG recording (2007) IEEE Transactions on Biomedical Engineering, 54 (1), pp. 162-165. , DOI 10.1109/TBME.2006.884649, 23; 
Cunha, L.T., Pedrosa, P., Tavares, C.J., Alves, E., Vaz, F., Fonseca, C., The role of composition, morphology and crystalline structure in the electrochemical behaviour of TiN x thin films for dry electrode sensor materials (2009) Electrochim. Acta, 55 (1), pp. 59-67; 
Dias, N.S., Carmo, A., Ferreira Da Silva, A., Mendes, P.M., Correia, J.H., New dry electrodes based on iridium oxide (IrO) for non-invasive biopotential recordings and stimulation (2010) Sensors Actuators, 164 (1-2), pp. 28-34; 
Green, R.A., Baek, S., Poole-Warren, L.A., Martens, P.J., Conducting polymer-hydrogels for medical electrode applications (2010) Sci. Technol. Adv. Mater., 11 (1), p. 014107; 
Harland, C.J., Clark, T.D., Prance, R.J., Remote detection of human electroencephalograms using ultrahigh input impedance electric potential sensors (2002) Appl. Phys. Lett., 81 (17), pp. 3284-3286; 
Von, E.N., Spinelli, E., Muravchik, C.H., Capacitive electrodes in electroencephalography (2006) Conf. Proc. IEEE Eng. Med. Biol. Soc., 1, pp. 1126-1129; 
Kingsley, S.A., Sriram, S., Pollick, A., Marsh, J., Photrode optical sensor for electrophysiological monitoring (2003) Aviat. Space Environ. Med., 74, pp. 1215-1216; 
Fernandes, M.S., Dias, N.S., Silva, A.F., Nunes, J.S., Lanceros-Mendez, S., Correia, J.H., Mendes, P.M., Hydrogel-based photonic sensor for a biopotential wearable recording system (2010) Biosens. Bioelectron., 26 (1), pp. 80-86; 
Searle, A., Kirkup, L., A direct comparison of wet, dry and insulating bioelectric recording electrodes (2000) Physiological Measurement, 21 (2), pp. 271-283. , DOI 10.1088/0967-3334/21/2/307, PII S0967333400090511; 
Merletti, R., The electrode-skin interface and optimal detection of bioelectric signals (2010) Physiol. Meas., 31; 
Piscanec, S., Ciacchi, L.C., Vesselli, E., Comelli, G., Sbaizero, O., Meriani, S., De Vita, A., Bioactivity of TiN-coated titanium implants (2004) Acta Mater., 52 (5), pp. 1237-1245; 
Vaz, F., Ferreira, J., Ribeiro, E., Rebouta, L., Lanceros-Mendez, S., Mendes, J.A., Alves, E., De Rijk, J., Influence of nitrogen content on the structural, mechanical and electrical properties of TiN thin films (2005) Surface and Coatings Technology, 191 (2-3), pp. 317-323. , DOI 10.1016/j.surfcoat.2004.01.033, PII S025789720400060X; 
Vaz, F., Machado, P., Rebouta, L., Cerqueira, P., Goudeau, Ph., Riviere, J.P., Alves, E., De Rijk, J., Mechanical characterization of reactively magnetron-sputtered TiN films (2003) Surface and Coatings Technology, 174-175, pp. 375-382. , DOI 10.1016/S0257-8972(03)00711-4; 
Klem, G.H., L{\"u}ders, H.O., Jasper, H.H., Elger, C., The ten-twenty electrode system of the International Federation. The International Federation of Clinical Neurophysiology (1999) Electroencephalogr. Clin. Neurophysiol. Suppl., 52, pp. 3-6; 
Huigen, E., Peper, A., Grimbergen, C.A., Investigation into the origin of the noise of surface electrodes (2002) Med. Biol. Eng. Comput., 40 (3), pp. 332-338; 
Scheer, H.J., Sander, T., Trahms, L., The influence of amplifier, interface and biological noise on signal quality in high-resolution EEG recordings (2006) Physiological Measurement, 27 (2), pp. 109-117. , DOI 10.1088/0967-3334/27/2/002, PII S0967333406050039; 
Mayorga Martinez, C.C., Madrid, R.E., Felice, C.J., Electrochemical and geometrical characterization of iridium oxide electrodes in stainless steel substrate (2008) Sensors Actuators, 133 (2), pp. 682-686; 
Haueisen, J., Leistritz, L., Susse, T., Curio, G., Witte, H., Identifying mutual information transfer in the brain with differential-algebraic modeling: Evidence for fast oscillatory coupling between cortical somatosensory areas 3b and 1 (2007) Neuroimage, 37 (1), pp. 130-135; 
Graichen, U., Witte, H., Haueisen, J., Analysis of induced components in electroencephalograms using a multiple correlation method (2009) Biomed. Eng. Online, 8
},
	month = {2011///},
	abstract = {A composition, structural, morphological and electrochemical study of two titanium nitride (TiN                        x) thin films, sample A and sample B, obtained by dc reactive sputtering on titanium substrates was carried out in this paper. In order to assess their applicability to be used as dry electrodes, several EEG signal acquisition tests were performed using the TiN
                        x electrodes and compared to signals acquired with conventional silver/silver-chloride (Ag/AgCl) electrodes. The two films displayed some compositional differences, as sample B was over-stoichiometric (x = 1.34, x = N/Ti atomic ratio) and sample A was close-stoichiometric (x = 0.94). XRD diffractograms showed that both samples developed a similar fcc crystalline structure (δ-TiN phase). XRD peak fitting showed that sample B (over-stoichiometric) has a more oriented structure (highly [1 1 1] textured), with larger grains. A columnar-type structure with pyramid-like shape at column{\textquoteright}s top was common to both TiN 
                        x films. This morphology, in addition to some columnar disaggregation, gives rise to a rather rough surface and porous structure. Electrochemical impedance spectroscopy results in artificial sweat showed that the electric properties of the samples remain unchanged, even after prolonged contact with sweat. The comparison of EEG signals, simultaneously recorded using the novel TiN
                        x electrodes and conventional Ag/AgCl electrodes, showed very similar results. The root mean square deviation, which was computed for different electrode-electrolyte combinations and signal sequences of 5 s, was in the range of 4.5-9.4 νV and 6.7-20.4 νV for samples A and B, respectively. An additional test with two sets of Ag/AgCl electrodes revealed similar results, thus indicating most of the signal differences are related to the spatial distance of the compared electrodes as well as environmental noise. Therefore, our results lead to the conclusion that the novel TiN
                        x electrodes show promising signal quality for application in EEG biosignal measurements. {\textcopyright} 2011 IOP Publishing Ltd.
},
	keywords = {bioelectric, biomedical electrodes, Chlorine compounds, dc magnetron sputtering, Electric properties, Electrochemical impedance spectroscopy, Electrochemical properties, Electrodes, electroencephalography, Electrophysiology, Signal processing, signals, Surface structure, Thin films, Tinning, Titanium, Titanium nitride, titanium nitride thin films},
	isbn = {09570233 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-81555220994\&partnerID=40\&md5=477ac3097f66e1610ed5147be18c5c77},
	author = {Fiedler, P. and Cunha, L.T. and Pedrosa, P. and Brodkorb, S. and Fonseca, C. and Vaz, F. and Haueisen, J.}
}
@article {2229,
	title = {Observer reliability and agreement: Differences, difficulties, and controversies},
	journal = {Journal of Clinical EpidemiologyJ. Clin. Epidemiol.},
	volume = {64},
	year = {2011},
	note = {Export Date: 21 November 2012Source: ScopusCODEN: JCEPEdoi: 10.1016/j.jclinepi.2010.12.002Language of Original Document: EnglishCorrespondence Address: Costa Santos, C.; Department of Biostatistics and Medical Informatics, Faculty of Medicine, University of Porto, Porto, Portugal; email: csantos.cristina@gmail.comReferences: Costa-Santos, C., Bernardes, J., Ayres-De-Campos, D., Costa, A., Costa, C., The limits of agreement and the intraclass correlation coefficient may be inconsistent in the interpretation of agreement (2010) J Clin Epidemiol;Streiner, D.L., Norman, G.R., (1996) PDQ Epidemiology, , 2nd edition Mosby St. Louis; 
Costa Santos, C., Costa Pereira, A., Bernardes, J., Agreement studies in obstetrics and gynaecology: Inappropriateness, controversies and consequences (2005) BJOG: An International Journal of Obstetrics and Gynaecology, 112 (5), pp. 667-669. , DOI 10.1111/j.1471-0528.2004.00505.x; 
Bland, M., How Do i Analyse Observer Variation Studies?, , http://www-users.york.ac.uk/~mb55/meas/observer.pdf
},
	month = {2011///},
	pages = {702},
	keywords = {consensus, correlation coefficient, letter, methodology, organization, priority journal, reliability, research, scientific literature, validity},
	isbn = {08954356 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-79955028603\&partnerID=40\&md5=be278b8ed9336b6268066fca66d45280},
	author = {Costa Santos, C. and Bernardes, J. and Ayres-de-Campos, D.}
}
@article {2237,
	title = {Pectin-based injectable biomaterials for bone tissue engineering},
	journal = {BiomacromoleculesBiomacromolecules},
	volume = {12},
	year = {2011},
	note = {Cited By (since 1996): 6Export Date: 21 November 2012Source: ScopusCODEN: BOMAFdoi: 10.1021/bm101110xPubMed ID: 21302960Language of Original Document: EnglishCorrespondence Address: Munarin, F.; Biomatlab, Bioengineering Department, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133, Milan, Italy; email: fabiola.munarin@mail.polimi.itChemicals/CAS: arginylglycylaspartic acid, 99896-85-2; osteocalcin, 136461-80-8; pectin, 9000-69-5; Biocompatible Materials; Oligopeptides; Pectins; arginyl-glycyl-aspartic acid, 99896-85-2; pectin, 9000-69-5References: Brown, M.J., Lester, J.N., (1980) Appl. Environ. Microbiol., 40, pp. 179-185;Knox, J.P., (2008) Curr. Opin. Plant Biol., 1, pp. 308-313; 
Jarvis, M.C., (1984) Plant, Cell Environ, 7, pp. 153-164; 
Thom, D., Grant, G.T., Morris, E.R., Rees, D.A., (1982) Carbohydr. Res., 100, pp. 29-42; 
Fang, Y., Al-Assaf, S., Phillips, G.O., Nishinari, K., Funami, T., Williams, P.A., (2008) Carbohydr. Polym., 72, pp. 334-341; 
Rowley, J.A., Madlambayan, G., Mooney, D.J., (1999) Biomaterials, 20, pp. 45-53; 
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Evangelista, M.B., Hsiong, S.X., Fernandes, R., Sampaio, P., Kong, H., Barrias, C.C., Salema, R., Granja, P.L., (2007) Biomaterials, 28, pp. 3644-3655; 
Grellier, M., Granja, P.L., Fricain, J., Bidarra, S.J., Renard, M., Bareille, R., Bourget, C., Barbosa, M.A., (2009) Biomaterials, 30, pp. 3271-3278; 
Liu, L., Fishman, M.L., Kost, J., Hicks, K.B., (2003) Biomaterials, 24, pp. 3333-3343; 
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Kokkonen, H.E., Ilvesaro, J.M., Morra, M., Schols, H.A., Tuukkanen, J., (2007) Biomacromolecules, 8, pp. 509-515; 
Munarin, F., Giuliano, L., Bozzini, S., Tanzi, M.C., Petrini, P., (2010) Mater. Sci. Eng. C, 30, pp. 491-496; 
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Ichibouji, T., Miyazaki, T., Ishida, E., Ashizuka, M., Sugino, A., Ohtsuki, C., Kuramoto, K., (2008) J. Ceram. Soc. Jpn., 116, pp. 74-78
},
	month = {2011///},
	pages = {568 - 577},
	abstract = {A variety of natural polymers and proteins are considered to be 3D cell culture structures able to mimic the extracellular matrix (ECM) to promote bone tissue regeneration. Pectin, a natural polysaccharide extracted from the plant cell walls and having a chemical structure similar to alginate, provides interesting properties as artificial ECM. In this work, for the first time, pectin, modified with an RGD-containing oligopeptide or not, is used as an ECM alternative to immobilize cells for bone tissue regeneration. The viability, metabolic activity, morphology, and osteogenic differentiation of immobilized MC3T3-E1 preosteoblats demonstrate the potential of this polysaccharide to keep immobilized cells viable and differentiating. Preosteoblasts immobilized in both types of pectin microspheres maintained a constant viability up to 29 days and were able to differentiate. The grafting of the RGD peptide on pectin backbone induced improved cell adhesion and proliferation within the microspheres. Furthermore, not only did cells grow inside but also theywere able to spread out from themicrospheres and to organize themselves in 3D structures producing a mineralized extracellular matrix. These promising results suggest that pectin can be proposed as an injectable cell vehicle for bone tissue regeneration. {\textcopyright} 2011 American Chemical Society.},
	keywords = {3-D Cell culture, 3D Structure, 3T3 Cells, Adhesion, Alginate, animal cell, Animals, arginylglycylaspartic acid, article, Biocompatible Materials, Biopolymers, Bone, Bone and Bones, Bone Regeneration, bone tissue, Bone tissue engineering, Bone tissue regeneration, carbohydrate analysis, cell adhesion, Cell culture, cell differentiation, cell growth, cell metabolism, cell proliferation, cell spreading, cell structure, cell viability, Cells, Chemical modification, Chemical structure, controlled study, Cryoelectron Microscopy, Extracellular matrices, extracellular matrix, gene expression, immobilized cell, Immobilized cells, Injectable biomaterials, Injections, MC3T3-E1, Metabolic activity, Mice, Microscopy, Electron, Scanning, microsphere, Microspheres, Mineralized extracellular matrixes, mouse, Natural polysaccharide, nonhuman, Oligopeptides, osteoblast, osteocalcin, Osteogenic differentiation, pectin, Pectins, Plant cell culture, Plant cell wall, Preosteoblasts, priority journal, RGD peptide, Three dimensional, Tissue engineering},
	isbn = {15257797 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-79955409005\&partnerID=40\&md5=277a7d5e91116f9a03f144aabda0dd96},
	author = {Munarin, F. and Guerreiro, S.G. and Grellier, M.A. and Tanzi, M.C. and Barbosa, M.A. and Petrini, P. and Granja, P.L.}
}
@article {2257,
	title = {Access to computerised analysis of intrapartum cardiotocographs improves clinicians{\textquoteright} prediction of newborn umbilical artery blood pH},
	journal = {BJOG: An International Journal of Obstetrics and GynaecologyBJOG Int. J. Obstet. Gynaecol.},
	volume = {117},
	year = {2010},
	note = {Cited By (since 1996): 3Export Date: 21 November 2012Source: ScopusCODEN: BIOGFdoi: 10.1111/j.1471-0528.2010.02645.xPubMed ID: 20618316Language of Original Document: EnglishCorrespondence Address: Costa, A.; Departamento de Ginecologia e Obstetr{\'\i}cia, Faculdade de Medicina da Universidade Do Porto, Alameda Hernani Monteiro, 4200-319 Porto, Portugal; email: cosantonia@gmail.comReferences: Ayres-De-Campos, D., Bernardes, J., Costa-Pereira, A., Pereira-Leite, L., Inconsistencies in classification by experts of cardiotocograms and subsequent clinical decision (1999) Br J Obstet Gynaecol, 106, pp. 1307-10;Donker, D.K., Van Geijn, H.P., Hasman, A., Interobserver variation in the assessment of fetal heart rate recordings (1993) Eur J Obstet Gynecol Reprod Biol, 52, pp. 21-8; 
Paneth, N., Bommarito, M., Stricker, J., Electronic fetal monitoring and later outcome (1993) Clin Invest Med, 16, pp. 159-65; 
Bernardes, J., Moura, C., Marques-De-S{\'a}, J.P., Pereira-Leite, L., The Porto system for automated cardiotocographic signal analysis (1991) J Perinat Med, 19, pp. 61-5; 
Ayres-De-Campos, D., Sousa, P., Costa, A., Bernardes, J., Omniview-SisPorto {\textregistered} 3.5 - A central fetal monitoring station with online alerts based on computerized cardiotocogram+ST event analysis (2008) J Perinat Med, 36, pp. 260-4; 
Costa, A., Ayres-De-Campos, D., Costa, F., Santos, C., Bernardes, J., Prediction of neonatal acidemia by computer analysis of fetal heart rate and ST event signals (2009) Am J Obstet Gynecol, 201, pp. 464e1-6. , Jun 17. [Epub ahead of print]; 
Westerhuis, M., Van Horen, E., Kwee, A., Van Dertweel, I., Visser, G., Moons, K., Inter- and intra-observer agreement of intrapartum ST analysis of the fetal electrocardiogram in women monitored by STAN (2009) BJOG, 116, pp. 545-51; 
Ayres-De-Campos, D., Bernardes, J., Marsalb, K., Nickelsen, C., Makarainend, L., Banfield, P., Can the reproducibility of fetal heart rate baseline estimation be improved? (2004) Eur J Obstet Gynecol Reprod Biol, 112, pp. 49-54; 
Huch, A., Huch, C., Rooth, G., Guidelines for blood sampling and measurement of pH and blood gas values in Obstetrics (1994) Eur J Obstet Gynecol Reprod Biol, 54, pp. 165-75; 
Umbilical artery blood acid-base analysis (1996) Int J Gynecol Obstet, 52, pp. 305-10. , ACOG technical bulletin; 
Westgate, J., Garibaldi, J.M., Greene, K.R., Umbilical cord blood gas analysis at delivery: A time for quality data (1994) Br J Obstet Gynaecol, 101, pp. 1054-63; 
Costa-Santos, C., Costa Pereira, A., Bernardes, J., Agreement studies in obstetrics and gynaecology: Inappropriateness, controversies and consequences (2005) BJOG, 112, pp. 667-9; 
Bland, J.M., Altman, D.G., Agreement between methods of measurement with multiple observations per individual (2007) J Biopharm Stat, 17, pp. 571-82; 
Chauhan, S.P., Klauser, C.K., Woodring, T.C., Sanderson, M., Magann, E.F., Morrison, J.C., Intrapartum nonreassuring fetal heart rate tracing and prediction of adverse outcomes: Interobserver variability (2008) Am J Obstet Gynecol, 199, pp. 623e1-e5; 
Nielsen, P.V., Stigsby, B., Nickelsen, C., Nim, J., The value of computer assessment compared with visual assessment (1988) Acta Obstet Gynecol Scand, 67, pp. 461-464
},
	month = {2010///},
	pages = {1288 - 1293},
	abstract = {Objective To evaluate the impact of access to computerised cardiotocograph (CTG) analysis on reproducibility and accuracy of clinicians{\textquoteright} predictions of umbilical artery blood pH (UAB pH) and 5-minute Apgar score. Design Prospective evaluation of pre-recorded cases. Setting A tertiary-care university hospital. Population From databases of intrapartum CTGs acquired in singleton term pregnancies, 204 tracings with low signal loss and short time interval to delivery were consecutively selected. Methods Tracings were randomly assigned to computer analysis by the Omniview-SisPorto 3.5                        {\textregistered} system (study group n = 104) or to no analysis (control group n = 100). Three experienced clinicians evaluated all tracing printouts independently and were asked to predict the newborns{\textquoteright} UAB pH and 5-minute Apgar scores from them. Main outcome measures Interobserver agreement (measured by the intraclass correlation coefficient [ICC]) and accuracy in prediction of neonatal outcomes with 95\% CI. Results Agreement on prediction of UAB pH was significantly higher in the study group (ICC = 0.70; 95\% CI 0.61-0.77) than in the control group (ICC = 0.43; 95\% CI 0.21-0.60), and a trend towards better agreement was also seen in estimation of 5-minute Apgar scores (ICC = 0.55; 95\% CI 0.38-0.68 versus ICC = 0.43; 95\% CI 0.25-0.57). Observers predicted UAB pH values correctly within a 0.10 margin in 70\% of cases in the study group (95\% CI 0.61-0.79) versus 46\% in the control group (95\% CI 0.35-0.56). They predicted 5-minute Apgar scores within a margin of one in 81\% of cases in the study group (95\% CI 0.73-0.88) and in 70\% of cases in the control group (95\% CI 0.61-0.79). Conclusions Prediction of UAB pH is more reproducible and accurate when clinicians have access to computerised analysis of CTGs. {\textcopyright} RCOG 2010 BJOG An International Journal of Obstetrics and Gynaecology.
},
	keywords = {access to information, Apgar score, arterial pH, article, Cardiotocography, clinical competence, computer analysis, computerised analysis, controlled study, delivery, Diagnosis, Computer-Assisted, diagnostic accuracy, Female, Fetal Blood, Fetal heart rate, Fetal monitoring, Gestational Age, human, Humans, Hydrogen-Ion Concentration, Infant, Newborn, male, neonatal acidaemia, Neonatology, newborn, observer variation, outcome assessment, prediction, Pregnancy, priority journal, Prospective Studies, prospective study, reproducibility, Umbilical Arteries, umbilical artery, university hospital},
	isbn = {14700328 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-77955794381\&partnerID=40\&md5=49e6cf80fa55cf7009fcb9ccec497ab2},
	author = {Costa, A. and Santos, C. and Ayres-de-Campos, D. and Costa, C. and Bernardes, J.}
}
@article {2281,
	title = {Adhesion of human leukocytes on mixtures of hydroxyl- and methyl-terminated self-assembled monolayers: Effect of blood protein adsorption},
	journal = {Journal of Biomedical Materials Research - Part AJ. Biomed. Mater. Res. Part A},
	volume = {93},
	year = {2010},
	note = {Cited By (since 1996): 4Export Date: 21 November 2012Source: ScopusCODEN: JBMRCdoi: 10.1002/jbm.a.32480PubMed ID: 19484768Language of Original Document: EnglishCorrespondence Address: Barbosa, J. N.; Divis{\~a}o de Biomateriais, INEB-Instituto de Engenharia Biom{\'e}dica, Universidade do Porto, Porto 4150-180, Portugal; email: judite@ineb.up.ptChemicals/CAS: Blood Proteins; Gold, 7440-57-5; Hydroxyl Radical, 3352-57-6References: Brodbeck, W.G., Nakayama, Y., Matsuda, T., Colton, E., Ziats, N.P., Anderson, J.M., Biomaterial surface chemistry dictates adherent monocyte/macrophage cytokine expression in vitro (2002) Cytokine, 18, pp. 311-319;Kao, W.Y.J., Evaluation of leukocyte adhesion on polyurethanes: The effects of shear stress and blood proteins (2000) Biomaterials, 21, pp. 2295-2303; 
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},
	month = {2010///},
	pages = {12 - 19},
	abstract = {The adhesion of human leukocytes to nanostructured surfaces with different chemical properties and the effect of protein adsorption were investigated. Selfassembled monolayers (SAMs) prepared with mixtures of methyl- and hydroxyl-terminated alkanethiols in different percentages on gold were used. The surfaces were preimmersed in distinct protein solutions (human serum albumin, human fibrinogen, and autologous plasma). Adherent leukocytes were analyzed both by light and SEM. SAMs submitted to pre-immersion in plasma presented higher numbers of adherent leukocytes in the pure OH-terminated SAM, whereas methyl-terminated surfaces accounted for the lowest number of adherent cells. We observed a general increase in the number of adherent human leukocytes as the percentage of OH groups on the surface of the SAMs increased for all the pre-immersion conditions investigated. The number of adherent human leukocytes is highly influenced by the pre-immersion conditions used, and this observation is particularly relevant in the case of the methyl-terminated SAMs. The results obtained demonstrate that surface chemistry has a major influence in leukocyte adhesion to biomaterials, and that pre-immersion in protein solutions has a determinant effect in leukocyte adhesion. {\textcopyright} 2009 Wiley Periodicals, Inc.},
	keywords = {Adherent cells, Adhesion, Adsorption, Alkanethiols, article, Biological materials, biomaterial, Blood protein adsorption, Blood Proteins, cell adhesion, Cell Count, Chemical properties, gold, human, human cell, Human leukocytes, Human serum albumins, Humans, hydroxyl group, Hydroxyl Radical, Hydroxyl-terminated, immersion, Inflammatory response, leukocyte adherence, Leukocyte adhesion, Leukocytes, Nanostructured materials, Nanostructured surface, Nanostructured surfaces, OH group, Protein adsorption, protein blood level, Protein solution, Proteins, Sams, Scanning electron microscopy, Self assembled monolayers, Self-assembled monolayers, SEM, Surface chemistry, Surface Properties},
	isbn = {15493296 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-77649225392\&partnerID=40\&md5=0b35403e1b98581c557435b6cf7a8286},
	author = {Barbosa, J.N. and Martins, M.C.L. and Freitas, S.C. and Gon{\c c}alves, I.C. and {\'A}guas, A.P. and Barbosa, M.A.}
}
@article {2260,
	title = {Analysis of heart rate variability in a rat model of induced pulmonary hypertension},
	journal = {Medical Engineering and PhysicsMed. Eng. Phys.},
	volume = {32},
	year = {2010},
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},
	month = {2010///},
	pages = {746 - 752},
	abstract = {Monocrotaline (MCT) is commonly used to experimentally induce pulmonary hypertension (PH), which might lead to chronic heart failure. In this study, linear and non-linear heart rate (HR) dynamics were weekly assessed in MCT-treated and non-treated Wistar rats.The HR of 10 adult Wistar rats injected with MCT (MCT group) and of 10 similar rats injected with vehicle (non-MCT group), anesthetized with Ketamine, was weekly recorded during 4 weeks. The first four segments of 1-min length of each HR recording were analysed using linear, time and frequency domains, and approximate (ApEn) and sample (SampEn) entropy indices, considering recently proposed values for the threshold parameter of ApEn and SampEn. Statistical analysis was performed using 95\% confidence intervals and statistical tests.Along the study period, an overall weekly maintenance of HR indices, or a decrease, namely in weeks 1-2, was manifest, in the MCT group, except for LF and LF/HF, in week 1, denoting a short-term increase in sympathetic activity without any other changes. On the other hand, a maintenance of HR indices, or an increase, namely on week 4, was observed in the non-MCT group, except for LF/HF, denoting a long-term increase of the overall activity of HR control systems, with a parasympathetic like dominance.Studies on long-term HR dynamics should be performed in very carefully controlled experimental settings, as significant weekly changes may occur, both among anesthetized MCT-treated and non-treated rats. {\textcopyright} 2010 IPEM.},
	keywords = {adrenergic activity, Amines, animal experiment, animal model, Animals, article, cholinergic activity, Chronic heart failures, Confidence interval, controlled study, Disease Models, Animal, Electrocardiography, entropy, Female, Frequency domain analysis, Frequency domains, Heart, heart electrophysiology, Heart rate, Heart rate variability, Heart rate variability (HRV), Heart rates, Hypertension, Pulmonary, Injections, Subcutaneous, Ketamine, Maintenance, Monocrotaline, Non-linear, nonhuman, priority journal, Pulmonary hypertension, rat, Rat model, Rats, Rats, Wistar, Statistical analysis, statistical parameters, Sympathetic activities, Threshold parameters, Time and frequency domain analysis, Time domain analysis, Time Factors, Wistar rat, Wistar rats},
	isbn = {13504533 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-77955279673\&partnerID=40\&md5=5fa2879d821f37e48f50a723fa1cb225},
	author = {Gon{\c c}alves, H. and Henriques-Coelho, T. and Bernardes, J. and Rocha, A.P. and Brand{\~a}o-Nogueira, A. and Leite-Moreira, A.}
}
@article {2271,
	title = {Assessment of Disagreement: A New Information-Based Approach},
	journal = {Annals of EpidemiologyAnn. Epidemiol.},
	volume = {20},
	year = {2010},
	note = {Cited By (since 1996): 2Export Date: 21 November 2012Source: ScopusCODEN: ANNPEdoi: 10.1016/j.annepidem.2010.02.011Language of Original Document: EnglishCorrespondence Address: Costa-Santos, C.; Biostatistics and Medical Informatics Department, Faculty of Medicine, University of Porto, Al. Prof. Hern{\^a}ni Monteiro, 4200-319 Porto, Portugal; email: csantos@med.up.ptReferences: Bland, M., (2000) An introduction to medical statistics, , Oxford University Press, Oxford;Costa Santos, C., Costa Pereira, A., Bernardes, J., Agreement studies in obstetrics and gynecology: inappropriateness, controversies and consequences (2005) Br J Obstet Gynaecol, 112, pp. 667-669; 
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},
	month = {2010///},
	pages = {554 - 561},
	abstract = {Purpose: Disagreement on the interpretation of diagnostic tests and clinical decisions remains an important problem in medicine. As no strategy to assess agreement seems to be fail-safe to compare the degree of agreement, or disagreement, we propose a new information-based approach to assess disagreement. Methods: The sum over all logarithms of possible outcomes of a variable is a valid measure of the amount of information contained in the variable. The proposed measure is based on the amount of information contained in the differences between two observations. This measure is normalized and satisfies the flowing properties: it is a metric, scaled invariant and it has differential weighting. Results: Two real examples and a simulation were used to illustrate the usefulness of the proposed measure to compare the degree of disagreement. Conclusions: Used as complement to the existing methods, we believe our approach can be useful to compare the degree of disagreement among different populations. {\textcopyright} 2010 Elsevier Inc.},
	keywords = {analysis of variance, Apgar score, article, Blood Pressure Determination, blood pressure measurement, correlation coefficient, human, Humans, information science, Information Theory, intermethod comparison, mathematical computing, measurement error, medical research, metric system, Models, Statistical, observer variation, priority journal, probability, process model, reliability, Reproducibility of Results, scale up, standard, Statistical analysis, statistical model, statistics, Statistics as Topic, systolic blood pressure, validity, variance},
	isbn = {10472797 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-77953667921\&partnerID=40\&md5=2c69deee8cc7bb3a02019dfa464095a1},
	author = {Costa-Santos, C. and Antunes, L. and Souto, A. and Bernardes, J.}
}
@article {2268,
	title = {Bioactivity of immobilized EGF on self-assembled monolayers: Optimization of the immobilization process},
	journal = {Journal of Biomedical Materials Research - Part AJ. Biomed. Mater. Res. Part A},
	volume = {94},
	year = {2010},
	note = {Cited By (since 1996): 7Export Date: 21 November 2012Source: ScopusCODEN: JBMRCdoi: 10.1002/jbm.a.32723PubMed ID: 20198690Language of Original Document: EnglishCorrespondence Address: Gon{\c c}alves, R.; INEB, Biomaterials Division, NEWTherapies Group, R. Campo Alegre, 823, Porto 4150-180, Portugal; email: raquelg@ineb.up.ptChemicals/CAS: epidermal growth factor, 62229-50-9; gold, 7440-57-5; Biocompatible Materials; Epidermal Growth Factor, 62229-50-9; Gold, 7440-57-5; Imidazoles; N,N-carbonyldiimidazole, 530-62-1; Polyethylene Glycols; Receptor, Epidermal Growth Factor, 2.7.10.1; Sulfhydryl CompoundsReferences: Singh, A., Harris, R.C., Autocrine, paracrine and juxtacrine signaling by EGFR ligands (2005) Cell Signal, 17, pp. 1183-1193;Luca, A., Carotenuto, A., Rachiglio, A., Gallo, M., Maiello, M.R., Aldinucci, D.L., Pinto, A., Normanno, N., The role of the EGFR signaling in tumor microenvironment (2008) J Cell Physiol, 214, pp. 559-567; 
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},
	month = {2010///},
	pages = {576 - 585},
	abstract = {Last trends in Biomaterials focus the mimic of cellular environments capable to control cellular responses. Epidermal growth factor (EGF) is a pleiotropic cytokine known to regulate cell proliferation, differentiation, and death. This study aims to optimize the immobilization of EGF on 11-mercapto-1-undecyl-tetra(ethylene)glycol (EG4) - self-assembled monolayers (SAMs) and to establish a new model surface to study EGF-mediated signaling. Gold substrates were modified with a monolayer of EG4 and N,N'- carbonyldiimidazole (CDI) was used to activate hydroxyl terminated groups of EG4-SAMs. EGF was then immobilized on activated EG4-SAMs at pH 7.4, 4{\textdegree}C, and 100 rpm. Different immobilization reaction times were tested as well as different CDI concentrations to optimize the reaction conditions and obtain a range of immobilized EGF concentrations on the surfaces. Surface characterization of EGF-SAMs was performed using radiolabeling, water contact angle measurements, X-ray photoelectron spectroscopy, and ELISA. Phosphorylation of EGFR on BT-20 breast cancer cell line by EGF-SAMs was tested by immunostaining. EGF was successfully immobilized on EG4-SAMs, at 4{\textdegree}C and pH 7.4 in a range of concentrations from 3.6 {\textpm} 0.8 to 17.6 {\textpm} 1.5 ng/cm                        2. The concentration of EGF increases with immobilization time and with the CDI concentration reaching the maximum for surfaces activated with 30 mg/mL of CDI after 48 h. The bioactivity of EGF-SAMs was confirmed by immunostaining of phospho-EGFR of BT-20 cells. This study described EGF immobilization on EG4-SAMs at different concentrations, which could be important surface models to study specific protein interactions at the molecular level evolving EGF-family of proteins. {\textcopyright} 2010 Wiley Periodicals, Inc. J.
},
	keywords = {Adsorption, Angle measurement, article, Biocompatible Materials, Biological materials, Breast cancer cells, cancer cell culture, Carbonyldiimidazole, Cell culture, Cell immobilization, Cell Line, Tumor, cell proliferation, Cellular environment, Cellular response, Concentration (process), Concentration of, Contact angle, controlled study, Cytokines, EGF, Electron energy levels, enzyme linked immunosorbent assay, Enzyme-Linked Immunosorbent Assay, epidermal growth factor, Epidermal growth factors, Ethylene, Glycols, gold, Gold substrates, human, human cell, Humans, Hydroxyl-terminated, Imidazoles, Immobilization process, Immobilization reaction, immunofluorescence, immunohistochemistry, Immunostaining, Molecular levels, Nanostructured materials, Nanostructured surface, Nanostructured surfaces, New model, Optimization, Phosphorylation, Photoelectron spectroscopy, Polyethylene Glycols, Protein adsorption, protein immobilization, protein interaction, protein phosphorylation, Proteins, Radiolabeling, Radioligand Assay, Reaction conditions, reaction optimization, Receptor, Epidermal Growth Factor, Sams, self assembled monolayer, Self assembled monolayers, Self-assembled monolayers, Sulfhydryl Compounds, Surface characterization, Surface functionalization, Surface models, Surface Properties, Water contact angle measurement, X ray photoelectron spectroscopy},
	isbn = {15493296 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-77953815323\&partnerID=40\&md5=7b54d717bbba475933dd86cc62659acc},
	author = {Gon{\c c}alves, R. and Martins, M.C.L. and Oliveira, M.J. and Almeida-Porada, G. and Barbosa, M.A.}
}
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},
	month = {2010///},
	pages = {E168 - E176},
	abstract = {The use of biological materials in the construction of bioprostheses requires the application of different chemical procedures to improve the durability of the material without producing any undesirable effects. A number of crosslinking methods have been tested in biological tissues composed mainly of collagen. The aim of this study was to evaluate the in vitro biocompatibility, the mechanical properties, and in vivo calcification of chemically modified bovine pericardium using glutaraldehyde acetals (GAAs) in comparison with glutaraldehyde (GA) treatment. Homsy{\textquoteright}s tests showed that the most cytotoxic treatment is GA whereas GAA treatments showed lower cytotoxicity. Regarding the mechanical properties of the modified materials, no significant differences in stress at rupture were detected among the different treatments. Zeta-Potential showed higher negative values for GA treatment (-4.9 {\textpm} 0.6 mV) compared with GAA-0.625\% (-2.2 {\textpm} 0.5 mV) and GAA-1\% (-2.2 {\textpm} 0.4 mV), which presented values similar to native tissue. Similar results were obtained for calcium permeability coefficients which showed the highest values for GA treatment (0.12 {\textpm} 0.02 mm                        2/min), being significantly lower for GAA treatments or non-crosslinked pericardium. These results confirmed the higher propensity of the GA-treated tissues for attraction of calcium cations and were in good agreement with the calcification degree obtained after 60 days implantation into young rats, which was significantly higher for the GA group (22.70 {\textpm} 20.80 mg/g dry tissue) compared with GAA-0.625\% and GAA-1\% groups (0.49 {\textpm} 0.28 mg/g dry tissue and 3.51 {\textpm} 3.27 mg/g dry tissue, respectively; P \&lt; 0.001). In conclusion, GAA treatments can be considered a promising alternative to GA treatment. {\textcopyright} 2010, International Center for Artificial Organs and Transplantation and Wiley Periodicals, Inc.
},
	keywords = {acetal derivative, animal cell, animal experiment, animal tissue, Animals, article, Biocompatibility, Bioprostheses, Bioprosthesis, Bovinae, Calcification, Calcification, Physiologic, Calcium, cation, Cattle, Chemical modification, controlled study, Cross-Linking Reagents, Crosslinking, Cytotoxicity, Glutaral, glutaraldehyde, heart valve bioprosthesis, Heart, Artificial, in vitro study, materials testing, mechanical stress, nonhuman, pericardium, permeability, priority journal, rat, Rats, Rattus, Subcutaneous implantation, Tissue engineering, Zeta potential},
	isbn = {0160564X (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-77952172654\&partnerID=40\&md5=bfd9eacf640d519719f005083ad7a1ae},
	author = {Jorge-Herrero, E. and Fonseca, C. and Barge, A.P. and Turnay, J. and Olmo, N. and Fern{\'a}ndez, P. and Lizarbe, M.A. and Garc{\'\i}a P{\'a}ez, J.M.}
}
@article {2274,
	title = {Characterization of polymeric solutions as injectable vehicles for hydroxyapatite microspheres},
	journal = {AAPS PharmSciTechAAPS PharmSciTech},
	volume = {11},
	year = {2010},
	note = {Cited By (since 1996): 1Export Date: 21 November 2012Source: Scopusdoi: 10.1208/s12249-010-9447-3PubMed ID: 20490958Language of Original Document: EnglishCorrespondence Address: Oliveira, S. M.; Dep. de Eng. Mec{\^a}nica e Gest{\~a}o Industrial, Escola Superior de Tecnologia e Gest{\~a}o de Viseu, Campus Polit{\'e}cnico de Repeses, 3504-510, Viseu, Portugal; email: soliveira@estv.ipv.ptChemicals/CAS: alginic acid, 28961-37-7, 29894-36-8, 9005-32-7, 9005-38-3; carboxymethylcellulose, 8050-38-2, 9000-11-7, 9004-32-4, 9050-04-8; hydroxyapatite, 1306-06-5, 51198-94-8; hydroxypropylmethylcellulose, 9004-65-3; Biocompatible Materials; Capsules; Durapatite, 1306-06-5; Excipients; Polymers; Solutions; VehiclesReferences: Verlaan, J.J., Oner, F.C., Dhert, W.J., Anterior spinal column augmentation with injectable bone cements (2006) Biomat, 27 (3), pp. 290-301;Chenite, A., Chaput, C., Wang, D., Combes, C., Buschmann, M.D., Hoemann, C.D., Novel injectable neutral solutions of chitosan form biodegradable gels in situ (2000) Biomat, 21 (21), pp. 2155-2161; 
Hoemann, C.D., Sun, J., Legare, A., McKee, M.D., Buschmann, M.D., Tissue engineering of cartilage using an injectable and adhesive chitosan-based cell-delivery vehicle (2005) Osteoarthritis Cart., 13 (4), pp. 318-329; 
Balakrishnan, B., Jayakrishnan, A., Self-cross-linking biopolymers as injectable in situ forming biodegradable scaffolds (2005) Biomat, 26 (18), pp. 3941-3951; 
Shu, X.Z., Ghosh, K., Liu, Y., Palumbo, F.S., Luo, Y., Clark, R.A., Attachment and spreading of fibroblasts on an RGD peptidemodified injectable hyaluronan hydrogel (2004) J. Biomed. Mater. Res., 68 A (2), pp. 365-375; 
Shu, X.Z., Ahmad, S., Liu, Y., Prestwich, G.D., Synthesis and evaluation of injectable, in situ crosslinkable synthetic extracellular matrices for tissue engineering (2006) J. Biomed. Mater. Res. A, 79 (4), pp. 902-912; 
Weiss, P., Gauthier, O., Bouler, J.-M., Grimandi, G., Daculsi, G., Injectable bone substitute using a hydrophilic polymer (1999) Bone, 25 (SUPPL. 1), pp. 67S-70S. , DOI 10.1016/S8756-3282(99)00146-5, PII S8756328299001465; 
Trojani, C., Weiss, P., Michiels, J.F., Vinatier, C., Guicheux, J., Daculsi, G., Three-dimensional culture and differentiation of human osteogenic cells in an injectable hydroxypropylmethylcellulose hydrogel (2005) Biomat, 26 (27), pp. 5509-5517; 
Virto, M.R., Frutos, P., Torrado, S., Frutos, G., Gentamicin release from modified acrylic bone cements with lactose and hydroxypropylmethylcellulose (2003) Biomat, 24 (1), pp. 79-87; 
Bodic, F., Amouriq, Y., Gayet-Delacroix, M., Gauthier, O., Bouler, J.-M., Daculsi, G., M{\'e}thode nom invasive d{\textquoteright}evaluation d{\textquoteright}un substitut osseux injectable/Non-invasive evaluation of an injectable bone substitute (2002) C R Biologies, 325, pp. 345-353; 
Andrews, G.P., Gorman, S.P., Jones, D.S., Rheological characterisation of primary and binary interactive bioadhesive gels composed of cellulose derivatives designed as ophthalmic viscosurgical devices (2005) Biomat, 26 (5), pp. 571-580; 
He, S., Yaszemski, M.J., Yasko, A.W., Engel, P.S., Mikos, A.G., Injectable biodegradable polymer composites based on poly (propylene fumarate) crosslinked with poly (ethylene glycol) dimethacrylate (2000) Biomat, 21 (23), pp. 2389-2394; 
Temenoff, J.S., Mikos, A.G., Injectable biodegradable materials for orthopedic tissue engineering (2000) Biomat, 21 (23), pp. 2405-2412; 
Iooss, P., Le Ray, A.M., Grimandi, G., Daculsi, G., Merle, C., A new injectable bone substitute combining poly (epsilon-caprolactone) microparticles with biphasic calcium phosphate granules (2001) Biomat, 22 (20), pp. 2785-2794; 
Uda, H., Sugawara, Y., Nakasu, M., Experimental studies on hydroxyapatite powder-carboxymethyl chitin composite: Injectable material for bone augmentation (2006) J. Plast. Reconstr. Aesthet. Surg., 59 (2), pp. 188-196; 
Carrodeguas, R.G., Lasa, B.V., Barrio, J.S.D., Injectable acrylic bone cements for vertebroplasty with improved properties (2004) J. Biomed. Mater. Res. B-Appl. Biomat., 68 (1), pp. 94-104; 
Oliveira, S.M., Barrias, C.C., Ribeiro, C.C., Almeida, I.F., Bahia, M.F., Barbosa, M.A., Morphology and mechanical properties of injectable ceramic microspheres (2009) Key Engineering Mat., 396-398, pp. 691-694; 
Barrias, C.C., Ribeiro, C.C., Barbosa, M.A., Adhesion and proliferation of human osteoblastic cells seeded on injectable hydroxyapatite microspheres (2004) Key Engineering Mat., 254-256, pp. 877-880; 
Ribeiro, C.C., Barrias, C.C., Barbosa, M.A., Preparation and characterisation of calcium-phosphate porous microspheres with a uniform size for biomedical applications (2006) J. Mater. Sci. Mater. Med., 17 (5), pp. 455-463; 
Oliveira, S.M., Barrias, C.C., Almeida, I.F., Costa, P.C., Ferreira, M.P., Bahia, M.F., Injectability of a bone filler system based on hydroxyapatite microspheres and a vehicle with in situ gelforming ability (2008) J. Biomed. Mater. Res. B-Appl. Biomat., 87 B, pp. 49-58; 
Barnes, H.A., Hutton, J.F., Walters, K., (1998) An Introduction to Rheology, , Amsterdam: Elsevier Science; 
Leo, W.J., McLoughlin, A.J., Malone, D.M., Effects of sterilization treatments on some properties of alginate solutions and gels (1990) Biotech. Progress, 6 (1), pp. 51-53; 
Holme, H.K., Lindmo, K., Kristiansen, A., Smidsr{\o}d, O., Thermal depolymerization of alginate in the solid state (2003) Carbohydrate Polym., 54 (4), pp. 431-438; 
Bohner, M., Baroud, G., Injectability of calcium phosphate pastes (2005) Biomat, 26 (13), pp. 1553-1563; 
Hide, I.G., Gangi, A., Percutaneous vertebroplasty: History, technique and current perspectives (2004) Clin. Radiol., 59 (6), pp. 461-467; 
Lewis, G., Injectable bone cements for use in vertebroplasty and kyphoplasty: State-of-the-art review (2006) J. Biomed. Mat. Res. B-Appl. Biomat., 76 B (2), pp. 456-468; 
Baumann, A., Tauss, J., Baumann, G., Tomka, M., Hessinger, M., Tiesenhausen, K., Cement embolization into the vena cava and pulmonal arteries after vertebroplasty: Interdisciplinary management (2006) Europ J. Vasc. and End Surg., 31 (5), pp. 558-561; 
Mathis, J.M., Wong, W., Percutaneous vertebroplasty: Technical considerations (2003) J. Vasc. and Intervent Rad., 14 (8), pp. 953-960; 
Xu, H.H., Weir, M.D., Burguera, E.F., Fraser, A.M., Injectable and macroporous calcium phosphate cement scaffold (2006) Biomat, 27 (24), pp. 4279-4287; 
Gisep, A., Curtis, R., Hanni, M., Suhm, N., Augmentation of implant purchase with bone cements: An in vitro study of injectability and dough distribution (2006) J. Biomed. Mater. Res. B-Appl. Biomat., 77 (1), pp. 114-119; 
Krebs, J., Ferguson, S.J., Bohner, M., Baroud, G., Steffen, T., Heini, P.F., Clinical measurements of cement injection pressure during vertebroplasty (2005) Spine, 30 (5), pp. E118-E122; 
Draget, K.I., Skjak-Braek, G., Smidsrod, O., Alginate-based new materials (1997) Int. J. Biol. Macromol., 21 (1-2), pp. 47-55
},
	month = {2010///},
	pages = {852 - 858},
	abstract = {A polymeric solution and a reinforcement phase can work as an injectable material to fill up bone defects. However, the properties of the solution should be suitable to enable the transport of that extra phase. Additionally, the use of biocompatible materials is a requirement for tissue regeneration. Thus, we intended to optimize a biocompatible polymeric solution able to carry hydroxyapatite microspheres into bone defects using an orthopedic injectable device. To achieve that goal, polymers usually regarded as biocompatible were selected, namely sodium carboxymethylcellulose, hydroxypropylmethylcellulose, and Na-alginate (ALG). The rheological properties of the polymeric solutions at different concentrations were assessed by viscosimetry before and after moist heat sterilization. In order to correlate rheological properties with injectability, solutions were tested using an orthopedic device applied for minimal invasive surgeries. Among the three polymers, ALG solutions presented the most suitable properties for our goal and a non-sterile ALG 6\% solution was successfully used to perform preliminary injection tests of hydroxyapatite microspheres. Sterile ALG 7.25\% solution was found to closely match non-sterile ALG 6\% properties and it was selected as the optimal vehicle. Finally, sterile ALG 7.25\% physical stability was studied at different temperatures over a 3-month period. It was observed that its rheological properties presented minor changes when stored at 25{\textdegree}C or at 4{\textdegree}C. {\textcopyright} 2010 American Association of Pharmaceutical Scientists.},
	keywords = {Alginate, alginic acid, article, Biocompatibility, Biocompatible Materials, Capsules, Carboxymethylcellulose, Drug Compounding, Durapatite, Excipients, hydroxyapatite, Hydroxypropylmethylcellulose, Injectability, injection, Injections, instrument sterilization, microsphere, Microspheres, minimally invasive surgery, molecular weight, orthopedic equipment, Polymers, priority journal, Solutions, Vehicles, viscometry},
	isbn = {15309932 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-77954819260\&partnerID=40\&md5=e8503462fa39dcc285aef7e07f765eef},
	author = {Oliveira, S.M. and Almeida, I.F. and Costa, P.C. and Barrias, C.C. and Ferreira, M.R.P. and Bahia, M.F. and Barbosa, M.A.}
}
@article {2283,
	title = {Comparison of a computer system evaluation of intrapartum cardiotocographic events and a consensus of clinicians.},
	journal = {Journal of perinatal medicineJ Perinat Med},
	volume = {38},
	year = {2010},
	note = {Cited By (since 1996): 2Export Date: 21 November 2012Source: Scopusdoi: 10.1515/JPM.2010.030PubMed ID: 20121542Language of Original Document: EnglishCorrespondence Address: Costa, M.A.email: cosantonia@gmail.com},
	month = {2010///},
	pages = {191 - 195},
	abstract = {AIMS: To compare between computer analysis of intrapartum cardiotocography (CTG) features by the Omniview-SisPorto 3.5 and a consensus of clinicians. METHODS: Agreement study using 50 consecutively acquired tracings (206 h of signals) with >60 min duration, <10\% signal loss and recorded in labor at term by internal fetal heart rate (FHR) monitoring. Tracings were divided into 10-min segments and independently analyzed by three experienced clinicians, in order to estimate the FHR baseline and identify periodic events. A consensus was reached using a three round Delphi procedure. Results were compared with the analysis provided by the Omniview-SisPorto 3.5 system. RESULTS: For baseline estimation, agreement between the computer and the consensus was high [intraclass correlation coefficient (ICC)=0.85; 95\% confidence interval (CI) 0.46-0.93], with a mean difference of 3.7 bpm (limits of agreement -4.4-11.9 bpm), and 99\% of differences under 15 bpm. A concordant identification was observed in 71\% of accelerations (95\% CI: 69\%-73\%), 68\% of decelerations (95\% CI: 66\%-70\%), and 87\% of uterine contractions (95\% CI: 85\%-89\%). CONCLUSIONS: A high agreement was observed between the Omniview-SisPorto 3.5 and a consensus of clinicians in evaluation of intrapartum CTG baseline, accelerations, decelerations and uterine contractions.},
	keywords = {algorithm, Algorithms, article, Cardiotocography, comparative study, computer assisted diagnosis, Diagnosis, Computer-Assisted, Female, Fetal Heart, Fetal monitoring, fetus heart, fetus monitoring, human, Humans, instrumentation, methodology, physician, Physicians, physiology, Pregnancy},
	isbn = {16193997 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-77953038696\&partnerID=40\&md5=bca187de4ffea0b2f2c4d2dcfb2140d9},
	author = {Costa, M.A. and Ayres-de-Campos, D. and Machado, A.P. and Santos, C.C. and Bernardes, J.}
}
@article {2279,
	title = {The effect of immobilization of thrombin inhibitors onto self-assembled monolayers on the adsorption and activity of thrombin},
	journal = {BiomaterialsBiomaterials},
	volume = {31},
	year = {2010},
	note = {Cited By (since 1996): 7Export Date: 21 November 2012Source: ScopusCODEN: BIMADdoi: 10.1016/j.biomaterials.2010.01.097PubMed ID: 20153046Language of Original Document: EnglishCorrespondence Address: Martins, M.C.L.; INEB - Instituto de Engenharia Biom{\'e}dica, Divis{\~a}o de Biomateriais, Universidade do Porto, Rua do Campo Alegre 823, 4150-180 Porto, Portugal; email: cmartins@ineb.up.ptChemicals/CAS: thrombin, 9002-04-4; Albumins; Gold, 7440-57-5; Immobilized Proteins; Iodine Radioisotopes; Peptides; Solutions; Thrombin, 3.4.21.5References: Gorbet, M.B., Sefton, M.V., Biomaterial-associated thrombosis: roles of coagulation factors, complement, platelets and leukocytes (2004) Biomaterials, 25 (26), pp. 5681-5703;Ratner, B.D., Hoffman, A.F., Schoen, F.J., Lemons, J.L., (2004) Biomaterials science - an introduction to materials in medicine. 2nd ed., , Elsevier Academic Press, San Diego, CA, USA; 
Bode, W., Structure and interaction modes of thrombin (2006) Blood Cells Mol Dis, 36 (2), pp. 122-130; 
Huntington, J.A., Molecular recognition mechanisms of thrombin (2005) J Thromb Haemost, 3 (8), pp. 1861-1872; 
Schwienhorst, A., Direct thrombin inhibitors - a survey of recent developments (2006) Cell Mol Life Sci, 63 (23), pp. 2773-2791; 
Tseng, P.-Y., Rele, S.S., Sun, X.-L., Chaikof, E.L., Membrane-mimetic films containing thrombomodulin and heparin inhibit tissue factor-induced thrombin generation in a flow model (2006) Biomaterials, 27 (12), pp. 2637-2650; 
Sperling, C., Salchert, K., Streller, U., Werner, C., Covalently immobilized thrombomodulin inhibits coagulation and complement activation of artificial surfaces in vitro (2004) Biomaterials, 25 (21), pp. 5101-5113; 
Lin, J.C., Tseng, S.M., Surface characterization and platelet adhesion studies on polyethylene surface with hirudin immobilization (2001) J Mater Sci Mater Med, 12 (9), pp. 827-832; 
Wendel, H.P., Ziemer, G., Coating-techniques to improve the hemocompatibility of artificial devices used for extracorporeal circulation (1999) Eur J Cardiothorac Surg, 16 (3), pp. 342-350; 
Werner, C., Maitz, M.F., Sperling, C., Current strategies towards hemocompatible coatings (2007) J Mater Chem, 17 (32), pp. 3376-3384; 
Weitz, J.I., Crowther, M., Direct thrombin inhibitors (2002) Thromb Res, 106 (3), pp. V275-V284; 
Di Nisio, M., Middeldorp, S., B{\"u}ller, H.R., Direct thrombin inhibitors (2005) N Engl J Med, 353 (10), pp. 1028-1040; 
Stone, S.R., Hofsteenge, J., Kinetics of the inhibition of thrombin by hirudin (1986) Biochemistry, 25 (16), pp. 4622-4628; 
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Phaneuf, M.D., Berceli, S.A., Bide, M.J., Quist, W.C., LoGerfo, F.W., Covalent linkage of recombinant hirudin to poly(ethylene terephthalate) (Dacron): creation of a novel antithrombin surface (1997) Biomaterials, 18 (10), pp. 755-765; 
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Martins, M.C.L., Curtin, S.A., Freitas, S.C., Salgueiro, P., Ratner, B.D., Barbosa, M.A., Molecularly designed surfaces for blood deheparinization using an immobilized heparin-binding peptide (2009) J Biomed Mater Res A, 88 (1), pp. 162-173; 
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},
	month = {2010///},
	pages = {3772 - 3780},
	abstract = {Thrombus formation is the major problem associated with biomaterials for blood contact medical devices. The immobilization of inhibitors to thrombin, a serine protease that plays a central role on the coagulation system, on the surface of biomaterials should be a good strategy to avoid blood clotting and increase their hemocompatibility. The aim of this work is the design of a nanostructured surface with capacity to adsorb and inactivate thrombin. The pentapeptide sequence d-Phenylalanine-Proline-Arginine-Proline-Glycine (fPRPG), that was described as a thrombin inhibitor, was immobilized onto tetra(ethylene glycol) terminated self-assembled monolayers (EG4-SAMs). Surface containing different amounts of fPRPG were prepared using different concentrations of N,N'-Carbonyldiimidazole (CDI) during immobilization. The efficiency of fPRPG immobilization was followed using ellipsometry, contact angle measurements, Infrared reflection absorption spectroscopy (IRRAS) and X-ray photoelectron spectroscopy (XPS). Thrombin adsorption was quantified using radiolabelled thrombin and its activity in solution and after adsorption on the developed surfaces was assessed using a chromogenic assay. It was found that, although the immobilization of fPRPG on to EG4-SAMs does not increase its selectivity to thrombin, the activity of the adsorbed thrombin was inhibited in a peptide concentration dependent way. We concluded that SAMs with fPRPG immobilized in high amounts can be used as thrombin-inhibitor surfaces, which is a good step on the development of new surfaces for blood contact devices. {\textcopyright} 2010 Elsevier Ltd. All rights reserved.},
	keywords = {Absorption spectroscopy, Adsorption, adsorption kinetics, Albumins, Amino Acid Sequence, Amino acids, Angle measurement, article, Biomaterials, Blood, Blood clotting, Blood contact, Carbonyldiimidazole, Coagulation, Coagulation system, concentration (parameters), Concentration-dependent, Contact angle, D-phenylalanine, ellipsometry, Ethylene, Ethylene Glycol, ethylene glycol derivative, gold, Hemocompatibility, Humans, imidazole derivative, Immobilized Proteins, Infrared reflection absorption spectroscopy, infrared spectroscopy, Iodine Radioisotopes, isotope labeling, Medical Devices, monolayer culture, nanoanalysis, Nanostructured surface, peptide, Peptide immobilization, Peptides, phenylalanylprolylarginylprolylglycine, Phosphatases, priority journal, Protein adsorption, protein assembly, protein function, protein immobilization, quantitative study, Sams, Self assembled monolayers, Self-assembled monolayers, Serine protease, Solubility, Solutions, Spectroscopy, Fourier Transform Infrared, Surface functionalization, Surface Properties, Tetra, tetra(ethylene glycol), Thrombin, thrombin inhibitor, Thrombin inhibitors, Thrombus formation, unclassified drug, X ray photoelectron spectroscopy},
	isbn = {01429612 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-77649271932\&partnerID=40\&md5=f7180daf23d326319cf6d8dbf0eac77c},
	author = {Freitas, S.C. and Barbosa, M.A. and Martins, M.C.L.}
}
@article {2280,
	title = {Evaluation of the effect of the degree of acetylation on the inflammatory response to 3D porous chitosan scaffolds},
	journal = {Journal of Biomedical Materials Research - Part AJ. Biomed. Mater. Res. Part A},
	volume = {93},
	year = {2010},
	note = {Cited By (since 1996): 3Export Date: 21 November 2012Source: ScopusCODEN: JBMRCdoi: 10.1002/jbm.a.32499PubMed ID: 19484769Language of Original Document: EnglishCorrespondence Address: Barbosa, J. N.; INEB - Instituto de Engenharia Biom{\'e}dica, Divis{\~a}o de Biomateriais, Universidade do Porto, Rua do Campo Alegre 823, 4150-180 Porto, Portugal; email: judite@ineb.up.ptChemicals/CAS: chitosan, 9012-76-4; Chitosan, 9012-76-4References: Sefton, M.V., Babensee, J.E., Woodhouse, K.A., Innate and adaptative immune responses in tissue engineering (2008) Semin Immunol, 20, pp. 83-85;VandeVord, P.J., Matthew, H.W.T., DeSilva, S.P., Mayton, L., Wu, B., Wooley, P.H., Evaluation of the biocompatibility of a chitosan scaffold in mice (2002) J Biomed Mater Res, 59, pp. 585-590; 
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},
	month = {2010///},
	pages = {20 - 28},
	abstract = {The effect of the degree of acetylation (DA) of 3D chitosan (Ch) scaffolds on the inflammatory reaction was investigated. Chitosan porous scaffolds with DAs of 4 and 15\% were implanted using a subcutaneous air-pouch model of inflammation. The initial acute inflammatory response was evaluated 24 and 48 h after implantation. To characterize the initial response, the recruitment and adhesion of inflammatory cells to the implant site was studied. The fibrous capsule formation and the infiltration of inflammatory cells within the scaffolds were evaluated for longer implantation times (2 and 4 weeks). Chitosan with DA 15\% attracted the highest number of leukocytes to the implant site. High numbers of adherent inflammatory cells were also observed in this material. For longer implantation periods Ch scaffolds with a DA of 15\% induced the formation of a thick fibrous capsule and a high infiltration of inflammatory cells within the scaffold. Our results indicate that the biological response to implanted Ch scaffolds was influenced by the DA. Chitosan with a DA of 15\% induce a more intense inflammatory response when compared with DA 4\% Ch. Because inflammation and healing are interrelated, this result may provide clues for the relative importance of acetyl and amine functional groups in tissue repair and regeneration. {\textcopyright} 2009 Wiley Periodicals, Inc.},
	keywords = {acetic acid derivative, Acetylation, Acute inflammatory response, amine, Amine functional groups, animal cell, animal experiment, animal tissue, Animals, article, Biological materials, Biological response, Biomaterials, cell adhesion, cell infiltration, Chitin, chitosan, Chitosan scaffold, Degree of acetylation, Fibrous capsule, Fibrous capsule formation, freeze drying, Functional groups, Hydrogels, implant, implantation, Implantation periods, Implants, Experimental, Inflammation, Inflammatory cells, Inflammatory reaction, Inflammatory response, leukocyte count, Leukocytes, male, Mice, Mice, Inbred BALB C, Microscopy, Electron, Scanning, mouse, nonhuman, Pathology, porosity, Porous scaffold, Prosthesis Implantation, Relative importance, Scaffolds, Subcutaneous Tissue, Surface Properties, Three dimensional, Tissue regeneration, tissue repair, Tissue response, Tissue responses, Tissue Scaffolds},
	isbn = {15493296 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-77649219383\&partnerID=40\&md5=58781af29b82f3108ded649c4776e428},
	author = {Barbosa, J.N. and Amaral, I.F. and {\'A}guas, A.P. and Barbosa, M.A.}
}
@article {2264,
	title = {Immobilization of human mesenchymal stem cells within RGD-grafted alginate microspheres and assessment of their angiogenic potential},
	journal = {BiomacromoleculesBiomacromolecules},
	volume = {11},
	year = {2010},
	note = {Cited By (since 1996): 18Export Date: 21 November 2012Source: ScopusCODEN: BOMAFdoi: 10.1021/bm100264aPubMed ID: 20690708Language of Original Document: EnglishCorrespondence Address: Granja, P. L.; INEB-Instituto de Engenharia Biom{\'e}dica, Rua do Campo Alegre No. 823, 4150-180 Porto, Portugal; email: pgranja@ineb.up.ptMolecular Sequence Numbers: GENBANK: BC021289, NM_000088, NM_002046;Chemicals/CAS: alginic acid, 28961-37-7, 29894-36-8, 9005-32-7, 9005-38-3; alkaline phosphatase, 9001-78-9; arginylglycylaspartic acid, 99896-85-2; Alginates; Alkaline Phosphatase, 3.1.3.1; Collagen Type I; DNA Primers; Oligopeptides; arginyl-glycyl-aspartic acid, 99896-85-2References: Temenoff, J.S., Mikos, A.G., Injectable biodegradable materials for orthopedic tissue engineering (2000) Biomaterials, 21, pp. 2405-2412;Barralet, J.E., Wang, L., Lawson, M., Triffitt, J.T., Cooper, P.R., Shelton, R.M., Comparison of bone marrow cell growth on 2D and 3D alginate hydrogels (2005) J. Mater. Sci.: Mater. Med., 16, pp. 515-519; 
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},
	month = {2010///},
	pages = {1956 - 1964},
	abstract = {In this work, human mesenchymal stem cells (hMSC) immobilized in RGD-coupled alginate microspheres, with a binary composition of high and low molecular weight alginate, were investigated. Cells immobilized within RGD-alginate microspheres (during 21 days) showed metabolic activity, with an overall viability higher than 90\%, short cell extensions, and, when induced, they were able to differentiate into the osteogenic lineage. In osteogenic conditions (comparing to basal conditions), immobilized cells presented alkaline phosphatase (ALP) activity and an upregulation of ALP, collagen type I, and Runx 2 expression. Moreover, mineralization was also detected in immobilized cells under osteogenic stimulus. In addition, it was demonstrated for the first time that MSCs immobilized in this 3D matrix were able to enhance the ability of neighboring endothelial cells to form tubelike structures. Overall, these findings represent a step forward in the development of injectable stem cell carriers for bone tissue engineering. {\textcopyright} 2010 American Chemical Society.},
	keywords = {Alginate, Alginates, alginic acid, alkaline phosphatase, Alkaline phosphatase activity, angiogenesis, arginylglycylaspartic acid, article, Basal conditions, Base Sequence, Binary composition, bone development, Bone tissue engineering, Cell culture, cell differentiation, Cell extension, Cell immobilization, cell metabolism, cell structure, cell viability, collagen type 1, Collagen type I, controlled study, DNA Primers, Endothelial Cells, endothelium cell, enzyme activity, human, human cell, Human mesenchymal stem cells, Humans, immobilized cell, Immobilized cells, Low molecular weight, matrix, Mesenchymal stem cell, Mesenchymal Stem Cells, Metabolic activity, Microscopy, Electron, Scanning, microsphere, Microspheres, molecular weight, Neovascularization, Physiologic, nucleotide sequence, Oligopeptides, osteoblast, Osteogenic, Phosphatases, priority journal, protein expression, quantitative analysis, Reverse Transcriptase Polymerase Chain Reaction, stem cell, Stem cells, three dimensional imaging, Tissue engineering, transcription factor RUNX2, umbilical vein, Up-regulation, upregulation},
	isbn = {15257797 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-77955575798\&partnerID=40\&md5=d2d378c63dc49de9324e8dddb24ff2e9},
	author = {Bidarra, S.J. and Barrias, C.C. and Barbosa, M.A. and Soares, R. and Granja, P.L.}
}
@article {2259,
	title = {An intrauterine pressure generator for educational simulation of labour and delivery},
	journal = {Medical Engineering and PhysicsMed. Eng. Phys.},
	volume = {32},
	year = {2010},
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van Meurs, W.L., Nikkelen, E., Good, M.L., Pharmacokinetic-pharmacodynamic model for educational simulations (1998) IEEE Trans Biomed Eng, 45, pp. 582-590
},
	month = {2010///},
	pages = {740 - 745},
	abstract = {Simulation provides a risk free and controllable environment for training of healthcare providers. The limited realism of available simulators and training programs impedes immersive training in obstetric emergencies. In developed countries, intrapartum monitoring in high-risk cases involves continuous evaluation of foetal heart rate and uterine contractions signals. We present an essential component of a high-fidelity simulator for normal and critical situations in labour and delivery, namely an intrauterine pressure generator. The signal model behind the generator consists of a truncated Gaussian curve with the programmable features: amplitude, frequency, duration, and resting tone. Through analysis of 44. h of physiological data, we demonstrate that the natural variability of these features and of the baseline pressure can be approximated by deterministic trends and stationary stochastic processes. Signal parameters can be controlled by simulation instructors, scripts, or other models to reflect different patients, pathologies, and evolving clinical situations. Twelve 40-min tracings reflecting three different patients in labour were presented to three clinical experts, who attributed similar realism scores to simulated and to real tracings. {\textcopyright} 2010 IPEM.},
	keywords = {article, Clinical situations, Computer simulation, delivery, Delivery, Obstetric, Developed countries, Educational simulations, Essential component, Female, Fetal monitoring, Gaussian curves, generator, Health care providers, Heart Rate, Fetal, Heart rates, High-fidelity simulators, Humans, Immersive, intrauterine pressure, labor, Labor, Obstetric, Labour and delivery, medical education, Medical educational simulation, muscle tone, Natural variability, normal distribution, Obstetrics, Physiological data, Pregnancy, Prenatal Diagnosis, Pressure, Pressure generators, priority journal, Random processes, Risk free, Signal generator, Signal generators, Signal models, Signal parameters, Signal Processing, Computer-Assisted, simulation, Stationary stochastic process, statistical model, statistical parameters, statistics, Stochastic Processes, Time Factors, Training program, Uterine activities, Uterine activity, Uterine Contraction, Uterine Monitoring, uterus contraction},
	isbn = {13504533 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-77955249563\&partnerID=40\&md5=42013058b547a71f970a3f7f1374caaf},
	author = {Bastos, L.F. and Lobo, M.F. and van Meurs, W.L. and Ayres-de-Campos, D.}
}
@book {2249,
	title = {Monitoring incremental histogram distribution for change detection in data streams},
	series = {Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)Lect. Notes Comput. Sci.},
	volume = {5840 LNCS},
	year = {2010},
	note = {Conference code: 81882Cited By (since 1996): 1Export Date: 21 November 2012Source: Scopusdoi: 10.1007/978-3-642-12519-5_2Language of Original Document: EnglishCorrespondence Address: Sebasti{\~a}o, R.; LIAAD, INESC Porto, L.A. Rua de Ceuta, 118, 6, Porto 4050-190, Portugal; email: raquel@liaad.up.ptReferences: Ayres-De-Campos, D., Sousa, P., Costa, A., Bernardes, J., Omniview-SisPorto{\textregistered} 3.5 - A central fetal monitoring station with online alerts based on computerized cardiotocogram+ST event analysis (2008) J. Perinat. Med., 36, pp. 260-264;Ayres-De-Campos, D., Bernardes, J., Garrido, A., Marques-De-{\'S}a, J., Pereira-Leite, L., SisPorto 2.0: A program for automated analysis of cardiotocograms (2000) J. Matern Fetal Med., 9, pp. 311-318; 
Barba{\'r}a, D., Requirements for clustering data streams (2002) SIGKDD Explorations (Special Issue on Online, Interactive and Anytime Data Mining), 3 (2), pp. 23-27; 
Berthold, M., Hand, D., (1999) Intelligent Data Analysis-An Introduction., , Springer, Heidelberg; 
Breiman, L., (1993) Classification and Regression Trees., , Chapman \& Hall, Boca Raton; 
Bock, R.K., Savicky, P., (2007) MAGIC Gamma Telescope Benchmark, , http://archive.ics.uci.edu/ml/datasets.html; 
Chabert, M., Ruiz, D., Tourneret, J.-Y., Optimal wavelet for abrupt change detection in multiplicative noise (2004) IEEE International Conference on Acoustics Speech and Signal Processing, pp. 1089-1092. , May 2004; 
Cormode, G., Garofalakis, M., Sketching probabilistic data streams (2007) Proceedings of the 2007 ACM SIGMOD International Conference on Management of Data, pp. 281-292. , June 2007; 
Correa, M., De, J., Raḿirez, M., Bielza, C., Pamies, J., Alique, J.R., Prediction of surface quality using probabilistic models (2007) 7th Congress of the Colombian Association of Automatic, Cali, Colombia, , March 21-24 Spanish; 
Dasu, T., Krishnan, S., Venkatasubramanian, S., Yi, K., An information-theoretic approach to detecting changes in multi-dimensional data streams (2006) Interface 2006, , Pasadena, CA Report; 
Gama, J., Medas, P., Castillo, G., Rodrigues, P.P., Learning with drift detection (2004) LNCS (LNAI), 3171, pp. 286-295. , Bazzan, A.L.C., Labidi, S. (eds.) Springer, Heidelberg SBIA 2004; 
Gama, J., Pinto, C., Discretization from data streams: Applications to histograms and data mining (2006) Proceedings of the 2006 ACM Symposium on Applied Computing, pp. 662-667; 
Goncalves, H., Bernardes, J., Paula Rocha, J.A., Linear and nonlinear analysis of heart rate patterns associated with fetal behavioral states in the antepartum period (2007) Early Human Development, 83 (9), pp. 585-591; 
Guha, S., Koudas, N., Woo, J., (2004) REHIST: Relative Error Histogram Construction Algorithms, pp. 300-311. , Proceedings of the VLDB Conference; 
Guha, S., Harb, B., Wavelet synopsis for data streams: Minimizing non-euclidean error (2005) Proceedings of the Eleventh ACM SIGKDD International Conference on Knowledge Discovery in Data Mining, pp. 88-97. , August 2005; 
Guha, S., Koudas, N., Shim, K., Approximation and streaming algorithms for histogram construction problems (2006) ACM Transactions on Database Systems (TODS), 31 (1), pp. 396-438; 
Hulten, G., Spencer, L., Domingos, P., Mining time-changing data streams (2001) Proceedings of the Seventh ACM SIGKDD International Conference on Knowledge Discovery and Data Mining ACM SIGKDD 2001, pp. 97-106. , ACM Press, New York; 
Jagadish, H.V., Koudas, N., Muthukrishnan, S., Poosala, V., Sevcik, K.C., Suel, T., Optimal histograms with quality guarantees (1998) Proc. of the VLDB Conference, pp. 275-286; 
Karras, P., Sacharidis, D., Mamoulis, N., Exploiting Duality in Summarization with Deterministic Guarantees. Approximating a Data Stream for Querying and Estimation: Algorithms and Performance Evaluation (2007) Proceedings of the ACM SIGKDD International Conference on Knowledge Discovery and Data Mining (KDD), pp. 380-389; 
Kifer, D., Ben-David, S., Gehrke, J., (2004) Detecting Change in Data Streams, pp. 180-191. , VLDB 2004: Proceedings of the 30th International Conference on Very Large Data Bases Morgan Kaufmann Publishers Inc., San Francisco; 
Klinkenberg, R., Renz, I., Adaptive information filtering: Learning in the presence of concept drifts (1998) Learning for Text Categorization, pp. 33-40. , AAAI Press, Menlo Park; 
Klinkenberg, R., Joachims, T., Detecting concept drift with support vector ma-chines (2000) Proceedings of ICML 2000, 17th International Conference on Machine Learning, Stanford, US, pp. 487-494. , Morgan Kaufmann Publishers, San Francisco; 
Klinkenberg, R., Learning drifting concepts: Example selection vs. example weight-ing (2004) Intelligent Data Analysis, 8 (3), pp. 281-300; 
Maloof, M., Michalski, R., Selecting examples for partial memory learning (2000) Machine Learning, 41, pp. 27-52; 
Pestana, D.D., Velosa, S.F., Introdu̧c̃a{\`o}a Probabilidade{\`e}a Estat̀istica (2002) Funda̧c̃ao Calouste Gulbenkian; 
Pinto, C., Gama, J., Incremental discretization, application to data with concept drift (2007) Proceedings of the 2007 ACM Symposium on Applied Computing, pp. 467-468. , March 2007; 
Sebastiao, R., Gama, J., Change detection in learning histograms from data streams (2007) Proceedings of Portuguese Conference on Artificial Intelligence, Guimar̃aes, Portugal, , December; 
Spinosa, E.J., Carvalho, A., Gama, J., OLINDDA: A cluster-based approach for detecting novelty and concept drift in data streams (2007) Proceedings of the 2007 ACM Symposium on Applied Computing, March 2007, pp. 448-452; 
Widmer, G., Kubat, M., Learning in the presence of concept drift and hidden contexts (1996) Machine Learning, 23, pp. 69-101
},
	month = {2010///},
	pages = {25 - 42},
	address = {Las Vegas, NV},
	abstract = {Histograms are a common technique for density estimation and they have been widely used as a tool in exploratory data analysis. Learning histograms from static and stationary data is a well known topic. Nevertheless, very few works discuss this problem when we have a continuous flow of data generated from dynamic environments. The scope of this paper is to detect changes from high-speed time-changing data streams. To address this problem, we construct histograms able to process examples once at the rate they arrive. The main goal of this work is continuously maintain a histogram consistent with the current status of the nature. We study strategies to detect changes in the distribution generating examples, and adapt the histogram to the most recent data by forgetting outdated data. We use the Partition Incremental Discretization algorithm that was designed to learn histograms from high-speed data streams. We present a method to detect whenever a change in the distribution generating examples occurs. The base idea consists of monitoring distributions from two different time windows: the reference window, reflecting the distribution observed in the past; and the current window which receives the most recent data. The current window is cumulative and can have a fixed or an adaptive step depending on the distance between distributions. We compared both distributions using Kullback-Leibler divergence, defining a threshold for change detection decision based on the asymmetry of this measure. We evaluated our algorithm with controlled artificial data sets and compare the proposed approach with nonparametric tests. We also present results with real word data sets from industrial and medical domains. Those results suggest that an adaptive window{\textquoteright}s step exhibit high probability in change detection and faster detection rates, with few false positives alarms. {\textcopyright} 2010 Springer-Verlag Berlin Heidelberg.},
	keywords = {Adaptive Cumulative Windows, Change detection, Data communication systems, Data reduction, Data stream, Data streams, Graphic methods, Learning histograms, Learning systems, Machine learning, Machine-learning, Monitoring, Monitoring data distribution, Sensors, signal detection, Statistical methods},
	isbn = {03029743 (ISSN); 3642125182 (ISBN); 9783642125188 (ISBN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-77957913416\&partnerID=40\&md5=ec0810650dda3c604d494473a9ffd649},
	author = {Sebasti{\~a}o, R. and Gama, J. and Rodrigues, P.P. and Bernardes, J.}
}
@conference {2251,
	title = {Novel TiN-based dry EEG electrodes: Influence of electrode shape and number on contact impedance and signal quality},
	booktitle = {IFMBE ProceedingsIFMBE Proc.},
	series = {12th Mediterranean Conference on Medical and Biological Engineering and Computing, MEDICON 2010},
	volume = {29},
	year = {2010},
	note = {Conference code: 81753Cited By (since 1996): 2Export Date: 21 November 2012Source: Scopusdoi: 10.1007/978-3-642-13039-7_105Language of Original Document: EnglishCorrespondence Address: Fiedler, P.; Institute for Biomedical Engineering and Informatics, Ilmenau University of Technology, Gustav-Kirchhoff Str. 2, Ilmenau, Germany; email: patrique.fiedler@tu-ilmenau.deReferences: Taheri, B.A., Knight, R.T., Smith, R.L., A dry electrode for EEG recording (1994) Electroen Clin Neuro, 90, pp. 376-383;Searle, A., Kirkup, L., A direct comparison of wet, dry and insulating bioelectric recording electrodes (2000) Physiol Meas, 21, pp. 271-283; 
Ng, W.C., Seet, H.L., Lee, K.S., Micro-spike EEG electrode and vacuum-casting technology for mass production (2009) J Mater Process Tech, 209, pp. 4434-4438; 
Vaz, F., Ferreira, J., Ribeiro, E., Influence of nitrogen content on the structural, mechanical and electrical properties of TiN thin films (2005) Surf Coat Tech, 191, pp. 317-323; 
Cunha, L.T., Pedrosa, P., Tavares, C.J., The role of composition, morphology and crystalline structure in the electrochemical behavior of TiNx thin films for dry electrode sensor materials (2009) Electro-Chim Acta, 55, pp. 59-67; 
Jasper, H.H., The ten-twenty electrode system of the international federation (1958) Electroen Clin Neuro, 10, pp. 371-375; 
Haueisen, J., Leistritz, L., S{\"u}sse, T., Identifying mutual information transfer in the brain with diffenential-algebraic modeling: Evidence for fast oscillatory coupling between cortical somatosensory areas 3b and 1 (2007) NeuroImage, 37, pp. 130-136; 
Graichen, U., Witte, H., Haueisen, J., Analysis of induced components in electroencephalograms using a multiple correlation method (2009) BioMed Eng OnLine, 8, p. 21
},
	month = {2010///},
	pages = {418 - 421},
	address = {Chalkidiki},
	abstract = {Usability of conventional wet electrodes for electroencephalography (EEG) is depending on a set of requirements, including time consuming and complex preparation of the skin of a subject, thus limiting possible application. A new class of "dry" electrodes without the need for electrolyte gels or pastes is being investigated. The dry application scenario of these novel electrodes requires a stable and reliable contact with the subject{\textquoteright}s skin. In order to develop an electrode shape with large contact surface for low electrode-skin impedance while also ensuring a sufficient hair layer penetration, several studies were performed. In this paper a distinct titanium electrode substrate shape for titanium nitride (TiN) coated electrodes was analyzed regarding influences of the number of interconnected electrodes and contact surface on electrodeskin impedance and biosignal quality. As a result 10 interconnected TiN pins had the lowest impedance values of 14 to 55 kΩ (depending on signal frequency) in comparison to 2 to 44 kΩ using conventional Ag/AgCl electrodes. Also the mean average deviation (MAD) of 5 seconds long EEG episodes were computed. The lowest MADs of 2.00 to 2.25 μV were determined using three interconnected TiN pins. In comparison to MADs of 2.13 to 2.54 μV, using a second set of Ag/AgCl electrodes, this leads to the conclusion that most of the error was related to spatial distance. This first step in optimization of electrode shape for dry TiN based electrodes showed very promising results and enable their use for EEG acquisition. {\textcopyright} 2010 International Federation for Medical and Biological Engineering.},
	keywords = {Ag/AgCl, Application scenario, Average deviation, Biochemical engineering, Bioelectric phenomena, bioelectric signals, biomedical electrodes, Biosignals, Coated electrodes, Coated wire electrodes, Contact impedance, Contact surface, electrochemical characterization, Electrochemical characterizations, Electrode shape, Electrode-skin impedance, Electrodes, electroencephalography, Electrophysiology, Medical computing, Signal frequencies, Signal quality, Spatial distance, Titanium, Titanium electrodes, Titanium nitride},
	isbn = {16800737 (ISSN); 9783642130380 (ISBN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-77957573144\&partnerID=40\&md5=faee85fb614e1ce7ac4960fb98e1b8e1},
	author = {Fiedler, P. and Brodkorb, S. and Fonseca, C. and Vaz, F. and Zanow, F. and Haueisen, J.}
}
@article {2272,
	title = {Receptor-mediated gene delivery using PAMAM dendrimers conjugated with peptides recognized by mesenchymal stem cells},
	journal = {Molecular PharmaceuticsMol. Pharm.},
	volume = {7},
	year = {2010},
	note = {Cited By (since 1996): 17Export Date: 21 November 2012Source: Scopusdoi: 10.1021/mp9002877PubMed ID: 20230026Language of Original Document: EnglishCorrespondence Address: Balian, G.; Orthopaedic Research Laboratories, Department of Orthopaedics and Biochemistry and Molecular Genetics, University of Virginia Health System, Charlottesville, VA 22908, United States; email: lenat@uma.ptChemicals/CAS: Dendrimers; Green Fluorescent Proteins, 147336-22-9; PAMAM Starburst; Peptides; enhanced green fluorescent proteinReferences: V{\"a}{\"a}n{\"a}nen, H.K., Mesenchymal stem cells (2005) Ann. Med., 37, pp. 469-479;Caplan, A.I., Adult mesenchymal stem cells for tissue engineering versus regenerative medicine (2007) J. Cell Physiol., 213, pp. 341-347; 
Kay, M.A., Glorioso, J.C., Naldini, L., Viral vectors for gene therapy: The art of turning infectious agents into vehicles of therapeutics (2001) Nat. Med., 7, pp. 33-40; 
Mastrobattista, E., Bravo, S.A., Van Der Aa, M., Crommelin, D.J.A., Nonviral gene delivery systems: From simple transfection agents to artificial viruses (2005) Drug Discovery Today: Technol., 2, pp. 103-109; 
Merdan, T., Kopecek, J., Kissel, T., Prospects for cationic polymers in gene and oligonucleotide therapy against cancer (2002) Adv. Drug Delivery Rev., 54, pp. 715-758; 
Hamm, A., Krott, N., Breibach, I., Blindt, R., Bosserhoff, A.K., Efficient transfection method for primary cells (2002) Tissue Eng., 8, pp. 235-245; 
McMahon, J.M., Conroy, S., Lyons, M., Greiser, U., O{\textquoteright}Shea, C., Strappe, P., Howard, L., O{\textquoteright}Brien, T., Gene transfer into rat mesenchymal stem cells: A comparative study of viral and nonviral vectors (2006) Stem Cells Dev., 15, pp. 87-96; 
Svenson, S., Tomalia, D.A., Dendrimers in biomedical applications-reflections on the field (2005) Adv. Drug Delivery Rev., 57, pp. 2106-2129; 
Duf-s, C., Uchegbu, I.F., Schatzlein, A.G., Dendrimers in gene delivery (2005) Adv. Drug Delivery Rev., 57, pp. 2177-2202; 
Guillot, M., Eisler, S., Diederich, F., Dendritic vectors for gene transfection (2007) New J. Chem., 31, pp. 1111-1127; 
Smith, D.K., Dendrimers and the double helix-from DNA binding towards gene therapy (2008) Curr. Top. Med. Chem., 8, pp. 1187-1203; 
Kukowska-Latallo, J.F., Bielinska, A.U., Johnson, J., Spindler, R., Tomalia, D.A., Baker Jr., J.R., Efficient transfer of genetic material into mammalian cells using Starburst polyamidoamine dendrimers (1996) Proc. Natl. Acad. Sci. U.S.A., 93, pp. 4897-4902; 
Santos, J.L., Oramas, E., P{\^e}go, A.P., Granja, P.L., Tom{\'a}s, H., Osteogenic differentiation of mesenchymal stem cells using PAMAM dendrimers as gene delivery vectors (2009) J. Controlled Release, 134, pp. 141-148; 
Balian, G., (2008), Bone Targeting Peptides. In United States Patent 7,323,542, issued January 29Snyder, S.L., Sobocinski, P.Z., An improved 2,4,6-trinitrobenzenesulfonic acid method for the determination of amines (1975) Anal. Biochem., 64, pp. 284-288; 
Haensler, J., Szoka Jr., F.C., Polyamidoamine cascade polymers mediate efficient transfection of cells in culture (1993) Bioconjugate Chem., 4, pp. 372-379; 
Hosseinkhani, H., Yamamoto, M., Inatsugu, Y., Hiraoka, Y., Inoue, S., Shimokawa, H., Tabata, Y., Enhanced ectopic bone formation using a combination of plasmid DNA impregnation into 3-D scaffold and bioreactor perfusion culture (2006) Biomaterials, 27, pp. 1387-1398; 
Perrot, S., Dutertre-Catella, H., Martin, C., Rat, P., Warnet, J.M., Resazurin metabolism assay is a new sensitive alternative test in isolated pig cornea (2003) Toxicol. Sci., 72, pp. 122-129; 
Wood, K.C., Little, S.R., Langer, R., Hammond, P.T., A family of hierarchically self-assembling linear-dendritic hybrid polymers for highly efficient targeted gene delivery (2005) Angew. Chem., Int. Ed., 44, pp. 6704-6708; 
Dan Luo, K.H., Belcheva, N., Han, E., Mark Saltzman, W., Poly(ethylene glycol)-conjugated PAMAM dendrimer for biocompatible, high-efficiency dna delivery (2002) Macromolecules, 35, pp. 3456-3462; 
Schaffer, D.V., Lauffenburger, D.A., Optimization of cell surface binding enhances efficiency and specificity of molecular conjugate gene delivery (1998) J. Biol. Chem., 273, pp. 28004-28009; 
Santos, J.L., Oliveira, H., Pandita, D., P{\^e}go, A.P., Granja, P.L., Tom{\'a}s, H., Functionalization of poly(amidoamine) dendrimers with hydrophobic chains for improved gene delivery in mesenchymal stem cells (2010) J. Controlled Release, , doi: 10.1016/j.jconrel.2010.01.034
},
	month = {2010///},
	pages = {763 - 774},
	abstract = {As mesenchymal stem cells (MSCs) can differentiate into multiple cell types, the delivery of exogenous genes to this type of cell can be an important tool in tissue regeneration and engineering. However transfection of MSCs using nonviral gene delivery vectors is difficult, the development of more efficient and safe DNA vehicles being necessary. Moreover, specific transfection of MSCs may be required to avoid unwanted side effects in other tissues. In this study, a novel family of gene delivery vectors based on poly(amidoamine) (PAMAM) dendrimers functionalized with peptides displaying high affinity toward MSCs was prepared. The vectors were characterized with respect to their ability to neutralize, bind and compact plasmid DNA (pDNA). The complexes formed between the vectors and pDNA were analyzed concerning their size, -potential, capacity of being internalized by cells and transfection efficiency. These new vectors exhibited low cytotoxicity, receptor-mediated gene delivery into MSCs and transfection efficiencies superior to those presented by native dendrimers and by partially degraded dendrimers. {\textcopyright} 2010 American Chemical Society.},
	keywords = {animal cell, animal experiment, animal tissue, Animals, article, asparaginylserylmethionylisoleucylalanylhistidylasparaginyllysylthreonylarginylmethionylhistidylglycylglycylglycylserylcysteine, Cell recognition, cell survival, Cells, Cultured, controlled study, Cytotoxicity, dendrimer, Dendrimers, DNA, DNA binding, Electrophoresis, Agar Gel, flow cytometry, Gene delivery, gene targeting, Gene Transfer Techniques, gene vector, genetic transfection, Genetic Vectors, Green Fluorescent Proteins, male, Mesenchymal stem cell, Mesenchymal Stem Cells, Models, Theoretical, multigene family, nonhuman, PAMAM dendrimers, peptide, Peptides, plasmid DNA, polyamidoamine, priority journal, rat, Rats, Rats, Wistar, serylglycylhistidylglutaminylleucylleucylleucylasparaginyllysylmethionylprolylasparaginylglycylglycylglycylserylcysteine, unclassified drug, Zeta potential},
	isbn = {15438384 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-77953253240\&partnerID=40\&md5=e06048334c689e2faa61e7b6b8ad9bf1},
	author = {Santos, J.L. and Pandita, D. and Rodrigues, J. and P{\^e}go, A.P. and Granja, P.L. and Balian, G. and Tom{\'a}s, H.}
}
@article {2255,
	title = {The stability of self-assembled monolayers with time and under biological conditions},
	journal = {Journal of Biomedical Materials Research - Part AJ. Biomed. Mater. Res. Part A},
	volume = {94},
	year = {2010},
	note = {Cited By (since 1996): 7Export Date: 21 November 2012Source: ScopusCODEN: JBMRCdoi: 10.1002/jbm.a.32746PubMed ID: 20336761Language of Original Document: EnglishCorrespondence Address: Barbosa, M. A.; Divis{\~a}o de Biomateriais, INEB - Instituto de Engenharia Biom{\'e}dica, Universidade do Porto, Rua do Campo Alegre 823, Porto 4150-180, Portugal; email: mbarbosa@ineb.up.ptChemicals/CAS: sulfur, 13981-57-2, 7704-34-9; Culture Media; Ethanol, 64-17-5; Sulfhydryl Compounds; Sulfur, 7704-34-9; Water, 7732-18-5References: Mrksich, M., Whitesides, G.M., Using self-assembled monolayers to understand the interactions of man- Made surfaces with proteins and cells (1996) Annual Review of Biophysics and Biomolecular Structure, 25, pp. 55-78;Mrksich, M., Dike, L.E., Tien, J., Ingber, D.E., Whitesides, G.M., Using microcontact printing to pattern the attachment of mammalian cells to self-assembled monolayers of alkanethiolates on transparent films of gold and silver (1997) Exp Cell Res, 235, pp. 305-313; 
Flynn, N.T., Tran, T.N.T., Cima, M.J., Langer, R., Long-term stability of self-assembled monolayers in biological media (2003) Langmuir, 19, pp. 10909-10915; 
Willey, T.M., Vance, A.L., Van Buuren, T., Bostedt, C., Terminello, L.J., Fadley, C.S., Rapid degradation of alkanethiol-based self-assembled monolayers on gold in ambient laboratory conditions (2005) Surf Sci, 576, pp. 188-196; 
Jones, J.A., Qin, L.A., Meyerson, H., Kwon, I.K., Matsuda, T., Anderson, J.M., Instability of self-assembled monolayers as a model material system for macrophage/FBGC cellular behavior (2008) J Biomed Mater Res Part A, 86 A, pp. 261-268; 
Martins, M.C.L., Ratner, B.D., Barbosa, M.A., Protein adsorption on mixtures of hydroxyl- And methyl-terminated alkanethiols self-assembled monolayers (2003) Journal of Biomedical Materials Research - Part a, 67 (1), pp. 158-171; 
Martins, M.C.L., Fonseca, C., Barbosa, M.A., Ratner, B.D., Albumin adsorption on alkanethiols self-assembled monolayers on gold electrodes studied by chronopotentiometry (2003) Biomaterials, 24, pp. 3697-3706; 
Bain, C.D., Troughton, E.B., Tao, Y.T., Evall, J., Whitesides, G.M., Nuzzo, R.G., Formation of monolayer films by the spontaneous assembly of organic thiols from solution onto gold (1989) J Am Chem Soc, 111, pp. 321-335; 
Sastry, M., A note on the use of ellipsometry for studying the kinetics of formation of self-assembled monolayers (2000) Bull Mater Sci, 23, pp. 159-163; 
Castner, D.G., Hinds, K., Grainger, D.W., X-ray photoelectron spectroscopy sulfur 2p study of organic thiol and disulfide binding interactions with gold surfaces (1996) Langmuir, 12, pp. 5083-5086; 
Porter, M.D., Bright, T.B., Allara, D.L., Chidsey, C.E.D., Spontaneously organized molecular assemblies. 4. Structural characterization of n-alkyl thiol monolayers on gold by optical ellipsometry, infrared spectroscopy, and electrochemistry (1987) J Am Chem Soc, 109, pp. 3559-3568; 
Rodrigues, S.N., Goncalves, I.C., Martins, M.C.L., Barbosa, M.A., Ratner, B.D., Fibrinogen adsorption, platelet adhesion and activation on mixed hydroxyl-/methyl-terminated self-assembled monolayers (2006) Biomaterials, 27, pp. 5357-5367; 
Tegoulia, V.A., Cooper, S.L., Leukocyte adhesion on model surfaces under flow: Effects of surface chemistry, protein adsorption, and shear rate (2000) J Biomed Mater Res, 50, pp. 291-301; 
Goncalves, I.C., Martins, M.C., Barbosa, M.A., Naeemi, E., Ratner, B.D., Selective protein adsorption modulates platelet adhesion and activation to oligo(ethylene glycol)-terminated self-assembled monolayers with C18 ligands (2009) J Biomed Mater Res A, 89, pp. 642-653; 
Martins, M.C.L., Curtin, S.A., Freitas, S.C., Salgueiro, P., Ratner, B.D., Barbosa, M.A., Molecularly designed surfaces for blood deheparinization using an immobilized heparin-binding peptide (2009) J Biomed Mater Res Part A, 88 A, pp. 162-173; 
Chidsey, C.E.D., Loiacono, D.N., Chemical functionality in self-assembled monolayers: Structural and electrochemical properties (1990) Langmuir, 6, pp. 682-691; 
Martins, M.C., Naeemi, E., Ratner, B.D., Barbosa, M.A., Albumin adsorption on cibacron blue F3G-A immobilized onto oligo(ethylene glycol)- Terminated self-assembled monolayers (2003) J Mater Sci Mater Med, 14, pp. 945-954; 
Ahn, H.S., Cuong, P.D., Park, S., Kim, Y.W., Lim, J.C., Effect of molecular structure of self-assembled monolayers on their tribological behaviors in nano- and microscales (2003) Wear, 255, pp. 819-825; 
Barrias, C.C., Martins, C.L., Miranda, C.S., Barbosa, M.A., Adsorption of a therapeutic enzyme to self-assembled monolayers: Effect of surface chemistry and solution pH on the amount and activity of adsorbed enzyme (2005) Biomaterials, 26, pp. 2695-2704; 
Martins, M.C., Fonseca, C., Barbosa, M.A., Ratner, B.D., Albumin adsorption on alkanethiols self-assembled monolayers on gold electrodes studied by chronopotentiometry (2003) Biomaterials, 24, pp. 3697-3706; 
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},
	month = {2010///},
	pages = {833 - 843},
	abstract = {The stability of self-assembled monolayers (SAMs) of different functionalities (CH                        3
},
	keywords = {Animals, article, Binding energy, Biological conditions, Biological studies, Body fluids, Cattle, Cell culture, Culture Media, Ethanol, Female, Fetal bovine serum, In-cell, materials testing, measurement, molecular stability, Nitrogen chamber, nonhuman, Organic polymers, Oxidation, Oxidation-Reduction, Oxidized sulfur, Photodegradation, Photoelectron spectroscopy, Sams, self assembled monolayer, Self assembled monolayers, Self-assembled monolayers, Stability, Storage condition, Sulfhydryl Compounds, Sulfur, Surface Properties, Water, wettability, X ray photoelectron spectroscopy, XPS, XPS spectra},
	isbn = {15493296 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-77954806701\&partnerID=40\&md5=9c561e8b43c045cdeb8d80a42148c6ca},
	author = {Maciel, J. and Martins, M.C.L. and Barbosa, M.A.}
}
@article {2275,
	title = {Targeted gene delivery into peripheral sensorial neurons mediated by self-assembled vectors composed of poly(ethylene imine) and tetanus toxin fragment c},
	journal = {Journal of Controlled ReleaseJ. Control. Release},
	volume = {143},
	year = {2010},
	note = {Cited By (since 1996): 13Export Date: 21 November 2012Source: ScopusCODEN: JCREEdoi: 10.1016/j.jconrel.2010.01.018PubMed ID: 20093157Language of Original Document: EnglishCorrespondence Address: P{\^e}go, A.P.; INEB-Instituto de Engenharia Biom{\'e}dica, Divis{\~a}o de Biomateriais, Universidade do Porto, Rua do Campo Alegre, 823, 4150-180 Porto, Portugal; email: apego@ineb.up.ptChemicals/CAS: DNA, 9007-49-2; macrogol, 25322-68-3; polyethyleneimine, 74913-72-7; DNA, 9007-49-2; Imines; Peptide Fragments; Polyethylenes; Tetanus Toxin; poly(ethylene imine); tetanus toxin fragment CReferences: Rodriguez, F.J., Valero-Cabre, A., Navarro, X., Regeneration and functional recovery following peripheral nerve injury (2004) Drug Discov. Today, 1 (2), pp. 177-185;Sahenk, Z., Neurotrophins and peripheral neuropathies (2006) Brain Pathol., 16 (4), pp. 311-319; 
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Fishman, P.S., Carrigan, D.R., Retrograde transneuronal transfer of the C-fragment of tetanus toxin (1987) Brain Res., 406 (1-2), pp. 275-279
},
	month = {2010///},
	pages = {350 - 358},
	abstract = {A simple, safe and efficient system that can specifically transfect peripheral sensorial neurons can bring new answers to address peripheral neuropathies. A multi-component non-viral gene delivery vector targeted to peripheral nervous system cells was developed, using poly(ethylene imine) (PEI) as starting material. A binary DNA/polymer complex based on thiolated PEI (PEISH) was optimized, considering complex size and zeta potential and the ability to transfect a sensorial neuron cell line (ND7/23). The 50. kDa non-toxic fragment from tetanus toxin (HC), which has been previously shown to interact specifically with peripheral neurons and to undergo retrograde transport, was grafted to the complex core via a bifunctional PEG (HC-PEG) reactive for the thiol moieties present in the complex surface. Several formulations of HC-PEG ternary complexes were tested for targeting, by assessing the extent of cellular internalization and levels of transfection, in both the ND7/23 and NIH 3 T3 (fibroblast) cell lines. Targeted gene transfer to the neuronal cell line was observed for the complex formulations containing 5 and 7.5. Μg of HC-PEG. Finally, our results demonstrate that the developed ternary vectors are able to transfect primary cultures of dorsal root ganglion dissociated neurons in a targeted manner and elicit the expression of a relevant neurotrophic factor. {\textcopyright} 2010 Elsevier B.V.},
	keywords = {Aberrations, animal cell, Animals, article, Bifunctional, Cell culture, Cell Line, Tumor, Cell lines, cell strain 3T3, Cells, Cultured, Cellular internalization, Chemical modification, Complex cores, Complex formulations, Complex surface, controlled study, DNA, DNA protein complex, Dorsal root ganglia, Efficient systems, embryo, Ethylene, Female, Gene transfer, genetic transfection, Imines, internalization, macrogol, Mice, mouse, Multicomponents, nanoparticle, nanoparticles, neuroblastoma cell, Neuronal cell, Neurons, neurotrophic factor, Neurotrophic factors, NIH 3T3 Cells, Nitrogen compounds, Non-viral, Non-viral gene delivery, nonhuman, Nonviral, nonviral gene delivery system, Nucleic acids, Particle Size, Peptide Fragments, Peripheral nervous system, Peripheral neuropathy, Plasmids, Polyethylene Glycols, Polyethylene oxides, Polyethyleneimine, Polyethylenes, Primary culture, priority journal, process optimization, protein expression, rat, Rats, Rats, Wistar, Regenerative Medicine, Self-assembled, sensory nerve cell, spinal ganglion, Starting materials, Targeted, Targeted gene delivery, Ternary complex, Ternary vectors, Tetanus toxin, tetanus toxin fragment c, Transfection, unclassified drug, Zeta potential},
	isbn = {01683659 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-77952239026\&partnerID=40\&md5=077b03d49cf392defc3d0c77f2f249d1},
	author = {Oliveira, H. and Fernandez, R. and Pires, L.R. and Martins, M.C.L. and Sim{\~o}es, S. and Barbosa, M.A. and P{\^e}go, A.P.}
}
@article {2323,
	title = {The correlation between the adsorption of adhesive proteins and cell behaviour on hydroxyl-methyl mixed self-assembled monolayers},
	journal = {BiomaterialsBiomaterials},
	volume = {30},
	year = {2009},
	note = {Cited By (since 1996): 41Export Date: 21 November 2012Source: ScopusCODEN: BIMADdoi: 10.1016/j.biomaterials.2008.09.048PubMed ID: 18952279Language of Original Document: EnglishCorrespondence Address: Barrias, C.C.; INEB - Instituto de Engenharia Biom{\'e}dica, Divis{\~a}o de Biomateriais, Universidade do Porto, R. Campo Alegre 823, 4150-180 Porto, Portugal; email: ccbarrias@ineb.up.ptChemicals/CAS: fibronectin, 86088-83-7; gold, 7440-57-5; thiol derivative, 13940-21-1; Biocompatible Materials; Fibronectins; VitronectinReferences: Wilson, C.J., Clegg, R.E., Leavesley, D.I., Pearcy, M.J., Mediation of biomaterial-cell interactions by adsorbed proteins: a review (2005) Tissue Eng, 11, pp. 1-18;Garc{\'\i}a, A.J., Vega, M.D., Boettiger, D., Modulation of cell proliferation and differentiation through substrate-dependent changes in fibronectin conformation (1999) Mol Biol Cell, 10, pp. 785-798; 
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},
	month = {2009///},
	pages = {307 - 316},
	abstract = {The objective of this study was to compare the biological effects of two key cell-adhesive proteins, fibronectin (FN) and vitronectin (VN), upon adsorption onto molecularly-designed model surfaces. Single-component and mixed self-assembled monolayers (SAMs) of alkanethiols on gold with OH and CH                        3 terminal groups were prepared at 100\%, 65\%, 36\% and 0\% of OH at the surface, to generate a range of surfaces with a simple chemistry and a wettability gradient. FN and VN were adsorbed under non-competitive (single-protein solutions) and competitive (multi-protein solutions) conditions, and compared at different levels: adsorbed amount (radiolabelling), elution, functional presentation of cell-binding domains (ELISA), and role in mediating cell adhesion (antibody-based assay). The observed trends were related to mesenchymal stem cell response in terms of adhesion and overall cell morphology. Under non-competitive conditions, adsorption of both proteins increased with surface hydrophobicity. The presence of competitive proteins significantly decreased the adsorbed amounts, although both proteins were still detected in all SAMs. Adsorption of FN followed a trend similar to that of non-competitive conditions, while adsorption of VN was higher on 100\%OH-SAMs. Concerning elution, retention of adsorbed VN was always higher than that of FN. For both proteins, functional presentation of cell-binding domains was more effective on the more hydrophilic 100\%OH-SAMs. This fact, coupled to the ability of this type of SAMs to selectively recruit and retain VN in the presence of competitive serum proteins, seems to correlate with the better cell response observed on these surfaces, as compared with hydrophobic 0\%OH(100\%CH
                        3)-SAMs. {\textcopyright} 2008 Elsevier Ltd. All rights reserved.
},
	keywords = {Adhesion, Adhesiveness, Adsorption, alkane, Animals, article, Biocompatible Materials, Biological Assay, bone marrow, Cattle, cell adhesion, Cell culture, Cell Movement, Cells, Cells, Cultured, cytology, cytoskeleton, Electric currents, Electron energy levels, enzyme linked immunosorbent assay, Fibronectin, Fibronectins, Focal adhesions, Functional groups, Functionalization, gold, human, human cell, Humans, hydrophilicity, hydrophobicity, Hydroxylation, isotope labeling, Mesenchymal stem cell, Mesenchymal Stem Cells, Microscopy, Confocal, Missile bases, Molecular interactions, monoclonal antibody, priority journal, Protein adsorption, protein analysis, protein binding, Protein Structure, Tertiary, Proteins, Self assembled monolayers, Self-assembled monolayers, stem cell, Stem cells, Surface Properties, thiol derivative, Vitronectin},
	isbn = {01429612 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-55249093830\&partnerID=40\&md5=132fa4efe300c4f76764942bfe3bce30},
	author = {Barrias, C.C. and Martins, M.C.L. and Almeida-Porada, G. and Barbosa, M.A. and Granja, P.L.}
}
@article {2305,
	title = {The effect of the co-immobilization of human osteoprogenitors and endothelial cells within alginate microspheres on mineralization in a bone defect},
	journal = {BiomaterialsBiomaterials},
	volume = {30},
	year = {2009},
	note = {Cited By (since 1996): 38Export Date: 21 November 2012Source: ScopusCODEN: BIMADdoi: 10.1016/j.biomaterials.2009.02.033PubMed ID: 19299013Language of Original Document: EnglishCorrespondence Address: Grellier, M.; INSERM, U577, Universit{\'e} Victor Segalen Bordeaux 2, UMR-S577, F-33076 Bordeaux Cedex, France; email: maritie.grellier@inserm.frChemicals/CAS: alginic acid, 28961-37-7, 29894-36-8, 9005-32-7, 9005-38-3; alkaline phosphatase, 9001-78-9; arginylglycylaspartic acid, 99896-85-2; osteocalcin, 136461-80-8; Alginates; Glucuronic Acid, 576-37-4; Hexuronic Acids; alginic acid, 9005-32-7References: Oreffo, R.O., Triffitt, J.T., Future potentials for using osteogenic stem cells and biomaterials in orthopedics (1999) Bone, 25 (2 SUPPL), pp. 5S-9S;Lubiatowski, P., Kruczynski, J., Gradys, A., Trzeciak, T., Jaroszewski, J., Articular cartilage repair by means of biodegradable scaffolds (2006) Transplant Proc, 38 (1), pp. 320-322; 
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},
	month = {2009///},
	pages = {3271 - 3278},
	abstract = {Bone regeneration seems to be dependant on cell communication between osteogenic and endothelial cells arising from surrounding blood vessels. This study aims to determine whether endothelial cells can regulate the osteogenic potential of osteoprogenitor cells in vitro and in vivo, in a long bone defect, when co-immobilized in alginate microspheres. Alginate is a natural polymer widely used as a biomaterial for cell encapsulation. Human osteoprogenitors (HOP) from bone marrow mesenchymal stem cells were immobilized alone or together with human umbilical vein endothelial cells (HUVEC) inside irradiated, oxidized and RGD-grafted alginate microspheres. Immobilized cells were cultured in dynamic conditions and cell metabolic activity increased during three weeks. The gene expression of alkaline phosphatase and osteocalcin, both specific markers of the osteoblastic phenotype, and mineralization deposits were upregulated in co-immobilized HOPs and HUVECs, comparing to the immobilization of monocultures. VEGF secretion was also increased when HOPs were co-immobilized with HUVECs. Microspheres containing co-cultures were further implanted in a bone defect and bone formation was analysed by μCT and histology at 3 and 6 weeks post-implantation. Mineralization was observed inside and around the implanted microspheres containing the immobilized cells. However, when HOPs were co-immobilized with HUVECs, mineralization significantly increased. These findings demonstrate that co-immobilization of osteogenic and endothelial cells within RGD-grafted alginate microspheres provides a promising strategy for bone tissue engineering. {\textcopyright} 2009 Elsevier Ltd. All rights reserved.},
	keywords = {adult, aged, Alginate, Alginates, alginic acid, alkaline phosphatase, animal tissue, Animals, arginylglycylaspartic acid, article, Bioactivity, Biopolymers, Blood vessel prostheses, Blood Vessels, Bone, Bone and Bones, bone defect, Bone defects, Bone formations, Bone marrow mesenchymal stem cells, bone mineralization, Bone Regeneration, Bone regenerations, bone tissue, Bone tissue engineerings, Calcification, Physiologic, Cell communications, Cell culture, Cell encapsulations, cell function, cell growth, Cell immobilization, Cell membranes, cell metabolism, Cells, Cultured, Co immobilizations, Co-culture, coculture, computer assisted tomography, controlled study, Defects, Dynamic conditions, Endothelial Cells, endothelium cell, gene expression, gene expression regulation, Glucuronic Acid, Grafting (chemical), Hexuronic Acids, histology, human, human cell, Human umbilical vein endothelial cells, Humans, Humulus, immobilized cell, Immobilized cells, in vitro study, in vivo study, In-vitro, In-vivo, irradiation, long bone, Long bones, Mesenchymal stem cell, Metabolic activities, Mice, Mice, Nude, microsphere, Microspheres, Middle Aged, Mineralogy, monoculture, mouse, nonhuman, osteoblast, osteocalcin, Osteogenic, Osteogenic potentials, Osteoprogenitor cells, Osteoprogenitors, Oxidation, Peptides, phenotype, Post implantations, priority journal, Self assembly, Sodium compounds, stem cell transplantation, Stem cells, Tissue engineering, umbilical vein, upregulation, Vascular endothelial growth factor (VEGF), X ray analysis, Young Adult},
	isbn = {01429612 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-67349213598\&partnerID=40\&md5=0190ab2a91dc0dc3527ffd9f86fabf63},
	author = {Grellier, M. and Granja, P.L. and Fricain, J.-C. and Bidarra, S.J. and Renard, M. and Bareille, R. and Bourget, C. and Am{\'e}d{\'e}e, J. and Barbosa, M.A.}
}
@article {2316,
	title = {Engineering endochondral bone: In vitro studies},
	journal = {Tissue Engineering - Part ATissue Eng. Part A},
	volume = {15},
	year = {2009},
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},
	month = {2009///},
	pages = {625 - 634},
	abstract = {Chitosan scaffolds have been shown to possess biological and mechanical properties suitable for tissue engineering and clinical applications. In the present work, chitosan sponges were evaluated regarding their ability to support cartilage cell proliferation and maturation, which are the first steps in endochondral bone formation. Chitosan sponges were seeded with chondrocytes isolated from chicken embryo sterna. Chondrocyte/chitosan constructs were cultured for 20 days, and treated with retinoic acid (RA) to induce chondrocyte maturation and matrix synthesis. At different time points, samples were collected for microscopic, histological, biochemical, and mechanical analyses. Results show chondrocyte attachment, proliferation, and abundant matrix synthesis, completely obliterating the pores of the sponges. RA treatment caused chondrocyte hypertrophy, characterized by the presence of type X collagen in the extracellular matrix and increased alkaline phosphatase activity. In addition, hypertrophy markedly changed the mechanical properties of the chondrocyte/chitosan constructs. In conclusion, we have developed chitosan sponges with adequate pore structure and mechanical properties to serve as a support for hypertrophic chondrocytes. In parallel studies, we have evaluated the ability of this mature cartilage scaffold to induce endochondral ossification. {\textcopyright} Copyright 2009, Mary Ann Liebert, Inc. 2009.},
	keywords = {alkaline phosphatase, Alkaline phosphatase activity, animal, animal cell, animal tissue, Animals, article, biomechanics, Body fluids, Bone, Bone and Bones, Bone formation, Cartilage, cartilage cell, Cell culture, cell damage, cell hypertrophy, cell isolation, cell maturation, Cell membranes, cell proliferation, Cells, Cultured, chick embryo, Chicken embryo, Chitin, chitosan, Chitosan scaffold, Chondrocyte, Chondrocyte maturation, Chondrocytes, Clinical application, collagen type 10, Collagen Type X, controlled study, cytology, DNA, drug effect, embryo, enchondral ossification, Endochondral ossification, enzyme activity, enzymology, Extracellular matrices, extracellular matrix, gene expression profiling, Hypertrophic chondrocytes, in vitro study, In-vitro, Ligaments, Matrix synthesis, Mechanical analysis, Mechanical properties, metabolism, methodology, nonhuman, Pathology, physiology, Porifera, porosity, priority journal, retinoic acid, Retinoic acids, Scaffolds, sponge (Porifera), Sterna, sternum, synthesis, Time points, Tissue engineering, tissue scaffold, Tissue Scaffolds, Tretinoin, Type X collagen},
	isbn = {19373341 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-64549143844\&partnerID=40\&md5=310f8e62d4dd51ccb9399db171440148},
	author = {Oliveira, S.M. and Amaral, I.F. and Barbosa, M.A. and Teixeira, C.C.}
}
@article {2317,
	title = {Engineering endochondral bone: In vivo studies},
	journal = {Tissue Engineering - Part ATissue Eng. Part A},
	volume = {15},
	year = {2009},
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},
	month = {2009///},
	pages = {635 - 643},
	abstract = {The use of biomaterials to replace lost bone has been a common practice for decades. More recently, the demands for bone repair and regeneration have pushed research into the use of cultured cells and growth factors in association with these materials. Here we report a novel approach to engineer new bone using a transient cartilage scaffold to induce endochondral ossification. Chondrocyte/chitosan scaffolds (both a transient cartilage scaffold- experimental-and a permanent cartilage scaffold-control) were prepared and implanted subcutaneously in nude mice. Bone formation was evaluated over a period of 5 months. Mineralization was assessed by Faxitron, micro computed tomography, backscatter electrons, and Fourier transform infrared spectroscopy analyses. Histological analysis provided further information on tissue changes in and around the implanted scaffolds. The deposition of ectopic bone was detected in the surface of the experimental implants as early as 1 month after implantation. After 3 months, bone trabeculae and bone marrow cavities were formed inside the scaffolds. The bone deposited was similar to the bone of the mice vertebra. Interestingly, no bone formation was observed in control implants. In conclusion, an engineered transient cartilage template carries all the signals necessary to induce endochondral bone formation in vivo. {\textcopyright} Copyright 2009, Mary Ann Liebert, Inc. 2009.},
	keywords = {animal, animal experiment, animal tissue, Animals, article, Biological materials, Biomaterials, Bone, Bone and Bones, Bone formation, bone marrow, bone mineralization, Bone repair, bone transplantation, Calcification, Physiologic, Cartilage, cartilage cell, chick embryo, chitosan, Chondrocytes, Computerized tomography, controlled study, Cultured cell, cytology, drug effect, Ectopic bones, ectopic tissue, electron, enchondral ossification, Endochondral ossification, Fourier transform infrared spectroscopy, Growth (materials), Growth factor, Histological analysis, histology, implantation, in vivo study, In-control, In-vivo, infrared spectroscopy, Ligaments, male, metabolism, methodology, Mice, Mice, Nude, micro-computed tomography, Microcomputed tomography, Microscopy, Electron, Scanning, mineral, Minerals, mouse, Mus, Mus musculus, nonhuman, Nude mice, nude mouse, ossification, physiology, priority journal, Prosthesis Implantation, Scaffolds, Scanning electron microscopy, Spectroscopic analysis, Spectroscopy, Spectroscopy, Fourier Transform Infrared, Tissue changes, Tissue engineering, tissue scaffold, Tissue Scaffolds, Tomography, trabecular bone, vertebra},
	isbn = {19373341 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-64549096039\&partnerID=40\&md5=d389cb8b10be8945007a5b6996b8896f},
	author = {Oliveira, S.M. and Mijares, D.Q. and Turner, G. and Amaral, I.F. and Barbosa, M.A. and Teixeira, C.C.}
}
@article {2297,
	title = {Fibronectin-mediated endothelialisation of chitosan porous matrices},
	journal = {BiomaterialsBiomaterials},
	volume = {30},
	year = {2009},
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},
	month = {2009///},
	pages = {5465 - 5475},
	abstract = {Chitosan (Ch) porous matrices were investigated regarding their ability to be colonized by human microvascular endothelial cells (HPMEC-ST1.6R cell line) and macrovascular endothelial cells namely HUVECs. Specifically we assessed if previous incubation of Ch in a fibronectin (FN) solution was effective in promoting endothelial cell (EC) adhesion to Ch matrices with different degrees of acetylation (DAs). Upon FN physiadsorption, marked differences were found between the two DAs investigated, namely DA 4\% and 15\%. While cell adhesion was impaired on Ch with DA 15\%, ECs were able to not only adhere to Ch with DA 4\%, but also to spread and colonize the scaffolds, with retention of the EC phenotype and angiogenic potential. To explain the observed differences between the two DAs, protein adsorption studies using                        125I-FN and immunofluorescent labelling of FN cell-binding domains were carried out. In agreement with the higher cell numbers found, scaffolds with DA 4\% revealed a higher number of exposed FN cell-binding domains as well as greater ability to adsorb FN and to retain and exchange adsorbed FN in the presence of competitive proteins. These findings suggest that the DA is a key parameter modulating EC adhesion to FN-coated Ch by influencing the adsorbed protein layer. {\textcopyright} 2009 Elsevier Ltd. All rights reserved.
},
	keywords = {Acetylation, Adhesion, Adsorption, angiogenesis, article, Biocompatible Materials, Blood vessel prostheses, cell adhesion, Cell culture, cell invasion, Cell Line, Cell lines, Cell membranes, Cell number, cell proliferation, Cell size, cell spreading, cell survival, Cell-binding domain, Chitin, Chitin/chitosan, chitosan, colony formation, controlled study, Degrees of acetylation, Electric conductivity measurement, Electric currents, Endothelial cell, Endothelial Cells, Endothelialisation, endothelium, endothelium cell, epithelization, Fibronectin, Fibronectins, human, human cell, Human microvascular endothelial cells, Humans, immunofluorescence test, Key parameters, Labels, materials testing, Matrix algebra, Neovascularization, Physiologic, phenotype, porosity, Porous matrixs, priority journal, Protein adsorption, Protein layers, Scaffold, Scaffolds, Self assembly, Tissue engineering, tissue scaffold, umbilical vein},
	isbn = {01429612 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-68549107574\&partnerID=40\&md5=9babb57c1a4f2ae6eb7e7e0643bffe48},
	author = {Amaral, I.F. and Unger, R.E. and Fuchs, S. and Mendon{\c c}a, A.M. and Sousa, S.R. and Barbosa, M.A. and P{\^e}go, A.P. and Kirkpatrick, C.J.}
}
@article {2296,
	title = {Improving chitosan-mediated gene transfer by the introduction of intracellular buffering moieties into the chitosan backbone},
	journal = {Acta BiomaterialiaActa Biomater.},
	volume = {5},
	year = {2009},
	note = {Cited By (since 1996): 17Export Date: 21 November 2012Source: Scopusdoi: 10.1016/j.actbio.2009.04.021PubMed ID: 19427930Language of Original Document: EnglishCorrespondence Address: P{\^e}go, A.P.; INEB-Instituto de Engenharia Biom{\'e}dica, Divis{\~a}o de Biomateriais, Universidade do Porto, Rua do Campo Alegre 823, 4150-180 Porto, Portugal; email: apego@ineb.up.ptChemicals/CAS: DNA, 9007-49-2; chitosan, 9012-76-4; imidazole, 1467-16-9, 288-32-4; Biocompatible Materials; Buffers; Chitosan, 9012-76-4; DNA, 9007-49-2; Drug CarriersReferences: Kirkpatrick, C.J., Fuchs, S., Peters, K., Brochhausen, C., Hermanns, M.I., Unger, R.E., Visions for regenerative medicine: interface between scientific fact and science fiction (2006) Artif Organs, 30, pp. 822-827;Sim{\~o}es, S., Filipe, A., Faneca, H., Mano, M., Penacho, N., Duzgunes, N., Cationic liposomes for gene delivery (2005) Expert Opin Drug Deliv, 2, pp. 237-254; 
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},
	month = {2009///},
	pages = {2995 - 3006},
	abstract = {Chitosan was functionalized with imidazole moieties (CHimi) with the aim of improving its buffering capacity and promoting the endosomal escape ability of chitosan-DNA complexes, ultimately increasing their transfection efficiency. 5.6\%, 12.9\% and 22.1\% of the glucosamine residues of chitosan were substituted. Complexes with different molar ratios of primary amines to DNA phosphate anion (N/P) were prepared by a coacervation method. For an N/P \&gt; 3, CHimi polymers are able to complex electrostatically with DNA and condense it into positively charged nanostructures (average size 260 nm and zeta potential +16 mV at pH 5.5). In the concentration range 2.5-100 μg ml},
	keywords = {article, beta galactosidase, Biocompatible Materials, Buffers, Cell Line, cell transport, Chemical structure, chitosan, coacervation, complex formation, controlled study, Cytotoxicity, Diffusion, DNA, Drug Carriers, Drug Compounding, endosome, Gene delivery, Gene transfer, genetic transfection, human, human cell, Humans, imidazole, Kidney, materials testing, nanomaterial, nanoparticle, priority journal, protein expression, proton transport, Tissue engineering, Transfection},
	isbn = {17427061 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-70349162856\&partnerID=40\&md5=fb6672dd0cf06d6ced21eec115b597d2},
	author = {Moreira, C. and Oliveira, H. and Pires, L.R. and Sim{\~o}es, S. and Barbosa, M.A. and P{\^e}go, A.P.}
}
@article {2291,
	title = {Induction of notch signaling by immobilization of jagged-1 on self-assembled monolayers},
	journal = {BiomaterialsBiomaterials},
	volume = {30},
	year = {2009},
	note = {Cited By (since 1996): 6Export Date: 21 November 2012Source: ScopusCODEN: BIMADdoi: 10.1016/j.biomaterials.2009.09.010PubMed ID: 19783294Language of Original Document: EnglishCorrespondence Address: Gon{\c c}alves, R.M.; INEB, Biomaterials Division, NEWTherapies Group, R. Campo Alegre, 823, 4150-180 Porto, Portugal; email: raquelg@ineb.up.ptChemicals/CAS: Calcium-Binding Proteins; Gold, 7440-57-5; Immunoglobulin G; Intercellular Signaling Peptides and Proteins; Membrane Proteins; Receptors, Fc; Receptors, Notch; Recombinant Fusion Proteins; Serrate proteins, 134324-36-0References: Artavanis-Tsakonas, S., Rand, M.D., Lake, R.J., Notch signaling: cell fate control and signal integration in development (1999) Science, 284, pp. 770-776;Leong, K., Karsan, A., Recent insights in the role of notch signaling in tumorigenesis (2006) Blood, 107 (6), pp. 2223-2233; 
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},
	month = {2009///},
	pages = {6879 - 6887},
	abstract = {Notch signaling is a key mechanism during mammal development and stem cell regulation. This study aims to target and control Notch signaling by ligands immobilization using self-assembled monolayers (SAMs) as model surfaces. Non-fouling substrates were prepared by immersion of gold substrates in (1-Mercapto-11-undecyl)tetra(ethylene glycol) thiol solutions. These surfaces were activated with N,N'-carbonyldiimidazole (CDI) at different concentrations (0, 0.03, 0.3, 3 and 30 mg/ml) and an anti-human IgG, Fc specific fragment antibody (Ab) was covalently bound to EG4-SAMs to guarantee the correct exposure of the Notch ligand Jagged-1/Fc chimera (Jag-1). The presence of Ab and Jag-1 was confirmed by radiolabeling, X-ray photoelectron spectroscopy (XPS), ellipsometry and ELISA. The biological activity of Jag-1-Ab-SAMs was assessed by real-time PCR for Hes-1 family gene expression, a Notch pathway target gene, in HL-60 cell line. Results have shown an increase of the amount of immobilized Ab with increasing surface activator concentrations. Jag-1 concentration also increases with Ab concentration. Interestingly, a higher Jagged-1 exposure and fold increase in Hes-1 expression were obtained for surfaces activated with the lowest concentration of CDI (0.03 mg/ml). These results illustrate the great importance of ligands orientation and exposure, when compared with density. This investigation brings new insights into Notch signaling mechanisms. In particular, Jag-1-Ab-SAMs have shown to be adequate model surfaces to study Notch pathway activation and may provide a basis to develop new interfaces in biomaterials to control Notch mechanism in different cell systems. {\textcopyright} 2009 Elsevier Ltd.},
	keywords = {Activator concentration, Adequate models, Adsorption, Animals, article, Bioactivity, Biological activities, Biological materials, biomaterial, Calcium-Binding Proteins, Carbonyldiimidazole, Cell culture, Cell Line, Cell membranes, cell strain HL 60, Cell system, Chemical activation, Concentration (process), Concentration of, controlled study, Covalently bound, Ethylene, Ethylene Glycol, gene expression, gold, Gold substrates, HL-60 cell line, human, human cell, Human IgG, Humans, Immunoassay, immunoglobulin Fc fragment, Immunoglobulin G, immunoglobulin G antibody, Intercellular Signaling Peptides and Proteins, Jagged1, Ligands, Mammalia, Membrane Proteins, Model surface, Molecular Structure, Nanostructured materials, Nanostructured surfaces, Nonfouling, Notch receptor, Notch signaling, Photoelectron spectroscopy, priority journal, Protein adsorption, protein immobilization, Radiolabeling, Real-time PCR, Receptors, Fc, Receptors, Notch, Recombinant Fusion Proteins, Sams, self assembled monolayer, Self assembled monolayers, Self-assembled monolayers, signal transduction, Signaling, stem cell, Surface Properties, Target genes, Tetra, transcription factor HES 1, X ray photoelectron spectroscopy},
	isbn = {01429612 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-70350188310\&partnerID=40\&md5=6c55d29cf8ae55288f3e87880171ec70},
	author = {Gon{\c c}alves, R.M. and Martins, M.C.L. and Almeida-Porada, G. and Barbosa, M.A.}
}
@article {2325,
	title = {Molecularly designed surfaces for blood deheparinization using an immobilized heparin-binding peptide},
	journal = {Journal of Biomedical Materials Research - Part AJ. Biomed. Mater. Res. Part A},
	volume = {88},
	year = {2009},
	note = {Cited By (since 1996): 12Export Date: 21 November 2012Source: ScopusCODEN: JBMRCdoi: 10.1002/jbm.a.31849PubMed ID: 18286636Language of Original Document: EnglishCorrespondence Address: Martins, M. C. L.; INEB - Instituto de Engenharia Biom{\'e}dica, Divis{\~a}o de Biomaterials, Universidade do Porto, Rua do Campo Alegre, 823, 4150-180, Porto, Portugal; email: cmartins@ineb.up.ptChemicals/CAS: carbonyldiimidazole, 530-62-1; heparin, 37187-54-5, 8057-48-5, 8065-01-8, 9005-48-5; imidazole, 1467-16-9, 288-32-4; leucine, 61-90-5, 7005-03-0; lysine, 56-87-1, 6899-06-5, 70-54-2; tetraethylene glycol, 112-60-7; Ethylene Glycol, 107-21-1; Heparin, 9005-49-6; Leucine, 61-90-5; Lysine, 56-87-1; PeptidesReferences: Dailey J. Blood. Ipswich, MA, USA: Medical Consulting Group; 1998Section, V., Chronic intermittent haemodialysis and prevention of clotting in the extracorporal system (2002) Nephrol Dialysis Transplant, 17, pp. 63-71;Zhang, Y.H., Singh, V.K., Yang, V.C., Novel approach for optimizing the capacity and efficacy of a protamine filter for clinical extracorporeal heparin removal (1998) Asaio J, 44, pp. M368-M373; 
Tao, W., Deyo, D.J., Brunston, R.L., Vertrees, R.A., Zwischenberger, J.B., Extracorporeal heparin adsorption following cardiopulmonary bypass with a heparin removal device - An alternative to protamine (1998) Critical Care Med, 26, pp. 1096-1102; 
Ameer, G.A., Barabino, G., Sasisekharan, R., Harmon, W., Cooney, C.L., Langer, R., Ex vivo evaluation of a Taylor-Couette flow, immobilized heparinase I device for clinical application (1999) Proc Natl Acad Sci USA, 96, pp. 2350-2355; 
Ostuni, E., Yan, L., Whitesides, G.M., The interaction of proteins and cells with self-assembled monolayers of alkanethiolates on gold and silver (1999) Colloids Surf B-Biointerfaces, 15, pp. 3-30; 
Mrksich, M., Whitesides, G.M., Using self-assembled monolayers that present oligo(ethylene glycol) groups to control the interactions of proteins with surfaces. Poly(Ethylene Glycol) (1997) ACS Symposium Series, 680, pp. 361-373; 
Cardin, A.D., Weintraub, H.J.R., Molecular modeling of proteinglycosaminoglycan interactions (1989) Arteriosclerosis, 9, pp. 21-32; 
Kricheldorf, H.R., (1987) α-Amino Acid N-Carboxyanhydrides and Related Heterocycles, , New York: Springer Verlag;; 
Martins, M.C.L., Ratner, B.D., Barbosa, M.A., Protein adsorption on mixtures of hydroxyl- and methylterminated alkanethiols self-assembled monolayers (2003) J Biomed Mater Res A, 67, pp. 158-171; 
Lee, H.J., Nedelkov, D., Corn, R.M., Surface plasmon resonance imaging measurements of antibody arrays for the multiplexed detection of low molecular weight protein biomarkers (2006) Anal Chem, 78, pp. 6504-6510; 
Roeges, N.P.G., (1994) A Guide to the Complete Interpretation of Infrared Spectra of Organic Structures, , England: Wiley;; 
Li, L.Y., Chen, S.F., Zheng, J., Ratner, B.D., Jiang, S.Y., Protein adsorption on oligo(ethylene glycol)-terminated alkanethiolate self-assembled monolayers: The molecular basis for non-fouling behavior (2005) J Phys Chem B, 109, pp. 2934-2941; 
Beamson, G., High, B.D., (1992) Resolution XPS of Organic Polymers, , Chichester: Wiley;; 
Sousa, S.R., Moradas, F.P., Saramago, B., Viseu, M.L., Barbosa, M.A., Human serum albumin adsorption on TiO2 from single protein solutions and from plasma (2004) Langmuir, 20, pp. 9745-9754; 
Socrates, G., (2001) Infrared and Raman Characteristic Group Frequencies: Tables and Charts, , Chichester: Wiley;; 
Capila, I., Linhardt, R.J., Heparin - Protein interactions (2002) Angewandte Chemie-Int Ed, 41, pp. 391-112; 
Snell, C.R.F.G., Kinetics and thermodynamics of the alpha Helix - β Transconformation of poly(L-lysine) and L-leucine copolymers. A compensation phenomenon (1973) Biochemistry, 12, pp. 1017-1025; 
Hearn, M.T.W., 1,1'-Carbonyldiimidazole-mediated immobilization of enzymes and affinity ligands (1987) Methods Enzymol, 135, pp. 102-117; 
Stollner, D., Scheller, F.W., Warsinke, A., Activation of cellulose membranes with 1,1'-carbonyldiimidazole or 1-cyano-4-dimethylaminopyridinium tetrafluoroborate as a basis for the development of immunosensors (2002) Anal Biochem, 304, pp. 157-165
},
	month = {2009///},
	pages = {162 - 173},
	abstract = {Systemic heparinization, used during haemodialysis to prevent blood clotting on the extracorporeal circuit, leads to a high incidence of hemorrhagic complications. The adverse reactions associated with heparin neutralization using protamine sulphate justify the development of an alternative system for blood deheparinization. The main objective of this work is to design nanostructured surfaces with the capacity to bind heparin from blood in a selective way. A heparin-binding polypeptide, composed of L-lysine and L-leucine (pKL), was synthesized and immobilized, in different concentrations, onto self-assembled monolayers (SAMs) terminated with tetra(ethylene-glycol) (EG4 SAMs). Immobilization was performed using a fixed concentration of pKL after surface activation to different degrees using a range of CDI (N,N'-carbonyldiimidazole) concentrations. Results demonstrated that the presence of pKL increases heparin adsorption to EG4-SAMs, independently of the pKL concentration and the way of immobilization (adsorption or covalent bound). Selectivity towards heparin was successfully achieved on SAMs with low concentrations of immobilized pKL (9-17\% of pKL). Surfaces were characterized using ellipsometry, contact angle measurements, Fourier transform infrared reflection absorption spectroscopy (IRAS), atomic force microscopy, and X-ray photoelectron spectroscopy. Heparin adsorption was assessed using IRAS and N-sulphonate-                        35S-heparin. Therefore, this study could give a good contribution for the design of blood deheparinization devices. {\textcopyright} 2008 Wiley Periodicals, Inc.
},
	keywords = {Absorption spectroscopy, Adsorption, Alternative systems, Amines, Amino acids, Angle measurement, article, Atomic force microscopy, Atomic forces, Atomic spectroscopy, Binding peptides, Blood, Blood clotting, Carbonyl diimidazole, Carbonyldiimidazole, Contact angle, deheparinization, device, Dialysis, Electron energy levels, ellipsometry, Ethylene, Ethylene Glycol, Fourier Transform Infrared, Fourier transforms, Glycols, Haemodialysis, heparin, heparin binding protein, Heparinization, High incidences, Humans, imidazole, immobilization, infrared spectroscopy, leucine, Low concentrations, lysine, Methods, Missile bases, Monolayers, nanomaterial, Nanostructured surfaces, Nanostructures, Peptide immobilization, Peptides, Photoelectron spectroscopy, Polysaccharides, Protein adsorption, protein binding, Renal Dialysis, Self assembled monolayers, Self-assembled monolayers, Sulphate, Surface activations, Surface functionalization, Surface Properties, surface property, tetraethylene glycol, unclassified drug, X ray photoelectron spectroscopy, X-ray photoelectron spectroscopies},
	isbn = {15493296 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-57449118932\&partnerID=40\&md5=8f442ccbde0273f4ed4e04024a75fd37},
	author = {Martins, M.C.L. and Curtin, S.A. and Freitas, S.C. and Salgueiro, P. and Ratner, B.D. and Barbosa, M.A.}
}
@book {2320,
	title = {Morphology and mechanical properties of injectable ceramic microspheres},
	series = {Key Engineering MaterialsKey Eng Mat},
	volume = {396-398},
	year = {2009},
	note = {Cited By (since 1996): 1Export Date: 21 November 2012Source: ScopusCODEN: KEMAEdoi: 10.4028/0-87849-353-0.691Language of Original Document: EnglishCorrespondence Address: Oliveira, S. M.; ESTV, Departamento de Engenharia Mec{\^a}nica, Instituto Polit{\'e}cnico de Viseu, Viseu, PortugalReferences: Barrias, C.C., Ribeiro, C.C., Lamghari, M., Miranda, C.S., Barbosa, M.A., Proliferation, activity, and osteogenic differentiation of bone marrow stromal cells cultured on calcium titanium phosphate microspheres (2005) Journal of Biomedical Materials Research, 72 A (1), pp. 57-66;Barrias, C.C., Ribeiro, C.C., Barbosa, M.A., Adhesion and proliferation of human osteoblastic cells seeded on injectable hydroxyapatite microspheres (2004) Bioceramics, 16, pp. 254-262,877-880; 
Ribeiro, C.C., Barrias, C.C., Barbosa, M.A., Calcium phosphate-alginate microspheres as enzyme delivery matrices (2004) Biomaterials, 25 (18), pp. 4363-4373; 
Silva, R.V., Camilli, J.A., Bertran, C.A., Moreira, N.H., The use of hydroxyapatite and autogenous cancellous bone grafts to repair bone defects in rats (2005) International Journal of Oral and Maxillofacial Surgery, 34 (2), pp. 178-184; 
Boyan, B.D., Lossd{\"o}rfer, S., Wang, L., Zhao, G., Lohmann, C.H., Cochran, D.L., Schwartz, Z., Osteoblasts generate an osteogenic microenvironment when grown on surfaces with rough microtopographies (2003) Eur Cell Mater, 6, pp. 22-27; 
Cardoso, O.N., Sotto Mayor, T., Pinto, A.M.F.R., Campos, J.B.L.M., Axial dispersion of particles in a slugging column - the role of the laminar wake of the bubbles (2003) Chemical Engineering Science, 58 (18), pp. 4159-4172; 
Gauthier, O., Bouler, J.M., Weiss, P., Bosco, J., Aguado, E., Daculsi, G., Short-term effects of mineral particle sizes on cellular degradation activity after implantation of injectable calcium phosphate biomateriais and the consequences for bone substitution (1999) Bone, 25 (2), pp. 71S-74S; 
Xu, H.H., Weir, M.D., Burguera, E.F., Fraser, A.M., Injectable and macroporous calcium phosphate cement scaffold (2006) Biomaterials, 27 (24), pp. 4279-4287; 
Ginebra, M.P., Rilliard, A., Fernandez, E., Elvira, C., San Roman, J., Planell, J.A., Mechanical and rheological improvement of a calcium phosphate cement by the addition of a polymeric drug (2001) J Biomed Mater Res, 57 (1), pp. 113-118
},
	month = {2009///},
	pages = {691 - 694},
	abstract = {The aim of this study was to analyze the effect of starting powder granulometry and sintering conditions on the morphological structure and mechanical properties of injectable hydroxyapaptite (HAp) microspheres. The mechanical properties of the microspheres were evaluated, to investigate if their integrity could be maintained during the injection process. To obtain microspheres, HAp powders were dispersed in a sodium alginate solution and spherical particles were prepared by droplet extrusion under a co-axial air stream, coupled with ionotropic gelation in the presence of Ca                        2+. This was followed by a sintering process at various temperatures and times. The morphology of microspheres was observed under SEM, diameter measurements were performed in an optical microscope and the compression strength was evaluated using a texture analyzer. Finally, microspheres prepared using lower granulometry HAp powders and sintered at 1200{\textdegree}C for 1 hour presented the best properties and were selected as the most suitable for the envisaged application.
},
	keywords = {Air streams, Apatite, Calcium, Ceramic microspheres, Co-axial, Coagulation, Compression strengths, Diameter measurements, Gelation, Granulometry, hydroxyapatite, Injectable, Injection process, Ionotropic gelations, Mechanical properties, Microspheres, Morphological structures, Morphology and mechanical properties, Optical microscopes, Powders, SEM, Sintering, Sintering conditions, Sintering process, Sodium, Sodium alginates, Spherical particles, Starting powders, Texture analyzers},
	isbn = {10139826 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-58849147162\&partnerID=40\&md5=5bf4364653a3ad10b5ab28c1a01568ab},
	author = {Oliveira, S.M. and Barrias, C.C. and Ribeiro, C.C. and Almeida, I.F. and Bahia, M.F. and Barbosa, M.A.}
}
@article {2294,
	title = {Prediction of neonatal acidemia by computer analysis of fetal heart rate and ST event signals},
	journal = {American Journal of Obstetrics and GynecologyAm. J. Obstet. Gynecol.},
	volume = {201},
	year = {2009},
	note = {Cited By (since 1996): 9Export Date: 21 November 2012Source: ScopusCODEN: AJOGAdoi: 10.1016/j.ajog.2009.04.033PubMed ID: 19539895Language of Original Document: EnglishCorrespondence Address: Costa, A.; Departamento de Ginecologia e Obstetr{\'\i}cia, Faculdade de Medicina, Hospital S. Jo{\~a}oPortugal; email: cosantonia@gmail.comReferences: (2006) Perinatal Mortality Surveillance 2004: England, Wales, and Northern Ireland, , CEMACH (Confidential Enquiry into Maternal and Child Health), Confidential Enquiry into Maternal and Child Health, London, UK;(1997) 4th annual report, , CESDI (Confidential Enquiry into Stillbirths and Deaths in Infancy), Maternal and Child Health Research Consortium, London, UK; 
Ayres-de-Campos, D., Bernardes, J., Costa-Pereira, A., Pereira-Leite, L., Inconsistencies in classification by experts of cardiotocograms and subsequent clinical decision (1999) Br J Obstet Gynaecol, 106, pp. 1307-1310; 
Paneth, N., Bommarito, M., Stricker, J., Electronic fetal monitoring and later outcome (1993) Clin Invest Med, 16, pp. 159-165; 
Bernardes, J., Costa-Pereira, A., Ayres-de-Campos, D., van Geijn, H.P., Pereira-Leite, L., Evaluation of interobserver agreement of cardiotocograms (1997) Int J Gynecol Obstet, 57, pp. 33-37; 
Donker, D.K., van Geijn, H.P., Hasman, A., Interobserver variation in the assessment of fetal heart rate recordings (1993) Eur J Obstet Gynecol Reprod Biol, 52, pp. 21-28; 
Neilson, J.P., Fetal electrocardiogram (ECG) for fetal monitoring during labour (2006) Cochrane Database Syst Rev, 3; 
Doria, V., Papageorghiou, A., Gustafsson, A., Ugwumadu, A., Farrer, K., Arulkumaran, S., Review of the first 1502 cases of ECG-ST waveform analysis during labour in a teaching hospital (2007) BJOG, 114, pp. 1202-1207; 
Westerhuis, M., Kwee, A., van Ginkel, A., Drogtrop, A., Gyselaers, W., Visser, G., Limitations of ST analysis in clinical practice: three cases of intrapartum metabolic acidosis (2007) BJOG, 114, pp. 1194-1201; 
Amer-Wahlin, I., Arulkumaran, S., Hagberg, H., Marsal, K., Visser, G., Fetal electrocardiogram: ST waveform analysis in intrapartum surveillance (2007) BJOG, 114, pp. 1191-1193; 
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Ayres-de-Campos, D., Costa-Santos, C., Bernardes, J., Prediction of neonatal state by computer analysis of fetal heart rate tracings: the antepartum arm of the SisPorto multicentre validation study (2005) Eur J Obstet Gynecol Reprod Biol, 118, pp. 52-60. , SisPorto Multicentre Validation Study Group; 
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Ayres-de-Campos, D., Bernardes, J., Garrido, A., Marques-de-S{\'a}, J.P., Pereira-Leite, L., SisPorto 2.0-a program for automated analysis of cardiotocograms (2000) J Matern Fetal Med, 9, pp. 311-318; 
Ayres-de-Campos, D., Sousa, P., Costa, A., Bernardes, J., Omniview-SisPorto{\textregistered} 3.5-a central fetal monitoring station with online alerts based on computerized cardiotocogram+S.T.event analysis (2008) J Perinat Med, 36, pp. 260-264; 
Ayres-de-Campos, D., Bernardes, J., Kwee, A., Westehuis, M., Visser, G.H.A., Computer quantification of short-term variability as an adjunct to fetal electrocardiographic monitoring (2007) BJOG, 114, pp. 1446-1447; 
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Chung, T.K., Mohajer, M.P., Yang, Z.j., Chang, A.M., Sahota, D.S., The prediction of fetal acidosis at birth by computerised analysis of intrapartum cardiotocography (1995) Br J Obstet Gynaecol, 102, pp. 454-460; 
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Casey, B.M., McIntire, D.D., Leveno, K.J., The continuing value of the Apgar score for the assessment of the newborn infants (2001) N Engl J Med, 334, pp. 467-471; 
Moster, D., Lie, R.T., Irgens, L.M., Bjerkedal, T., Markestad, The association of Apgar score with subsequent death and cerebral palsy: a population-based study in term infants (2001) J Pediatr, 138, pp. 798-803
},
	month = {2009///},
	pages = {464.e1 - 464.e6},
	abstract = {Objective: The objective of the study was to evaluate the accuracy of computer analysis of fetal heart rate (FHR) and ST event signals in prediction of neonatal acidemia. Study Design: One hundred forty-eight FHR tracings were evaluated to identify red alerts provided by the system, based on automated analysis of FHR and ST event signals, and compared with the occurrence of umbilical artery acidemia (pH <=7.05). Results: The presence of red alerts obtained sensitivity of 1.00 (95\% confidence interval [CI], 0.56-1.00), specificity of 0.94 (95\% CI, 0.89-0.97), positive predictive value (PPV) of 0.47 (95\% CI, 0.22-0.72), negative predictive value (NPV) of 1 (95\% CI, 0.96-1.00), positive likelihood ratio (PLR) of 17.6 (95\% CI, 9.0-34.5), and negative likelihood ratio (NLR) of 0. When limiting analysis to red alerts that did not include ST data, sensitivity was 0.57 (95\% CI, 0.20-0.88), specificity was 0.97 (95\% CI, 0.92-0.99), PPV was 0.50 (95\% CI, 0.17-0.82), NPV was 0.98 (95\% CI, 0.93-0.99), PLR was 20.14 (95\% CI, 6.3-64.2), and NLR was 0.44 (95\% CI, 0.19-1.04). Conclusion: Computer analysis of FHR and ST event signals provide higher accuracy in predicting neonatal academia. {\textcopyright} 2009 Mosby, Inc. All rights reserved.},
	keywords = {acidemia, Acidosis, article, autoanalysis, Cardiotocography, computer analysis, computer assisted, computer prediction, Diagnosis, Computer-Assisted, diagnostic value, Electrocardiography, Female, Fetal heart rate, Fetal hypoxia, Fetal monitoring, fetus electrocardiography, fetus heart rate, Heart Rate, Fetal, human, Humans, Infant, Newborn, major clinical study, male, newborn, newborn acidosis, observational study, pH, Predictive Value of Tests, priority journal, Prospective Studies, prospective study, Reproducibility of Results, sensitivity and specificity, signal transduction, ST segment, umbilical artery},
	isbn = {00029378 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-70350572323\&partnerID=40\&md5=6ffddbacf1381ab65c9bd35f8db108dd},
	author = {Costa, A. and Ayres-de-Campos, D. and Costa, F. and Santos, C. and Bernardes, J.}
}
@article {2298,
	title = {Protein adsorption and clotting time of pHEMA hydrogels modified with C18 ligands to adsorb albumin selectively and reversibly},
	journal = {BiomaterialsBiomaterials},
	volume = {30},
	year = {2009},
	note = {Cited By (since 1996): 9Export Date: 21 November 2012Source: ScopusCODEN: BIMADdoi: 10.1016/j.biomaterials.2009.06.025PubMed ID: 19595453Language of Original Document: EnglishCorrespondence Address: Gon{\c c}alves, I.C.; INEB - Instituto de Engenharia Biom{\'e}dica, Divis{\~a}o de Biomateriais, Universidade do Porto, Rua do Campo Alegre, 823, 4150-180 Porto, Portugal; email: icastro@ineb.up.ptChemicals/CAS: fibrinogen, 9001-32-5; human serum albumin, 9048-49-1; polymacon, 25053-81-0, 25249-16-5, 98932-78-6; polystyrene, 9003-53-6; Biocompatible Materials; Coated Materials, Biocompatible; Hydrogels; Polyhydroxyethyl Methacrylate, 25249-16-5; Serum AlbuminReferences: Kottkemarchant, K., Anderson, J.M., Umemura, Y., Marchant, R.E., Effect of albumin coating on the in vitro blood compatibility of dacron arterial prostheses (1989) Biomaterials, 10 (3), pp. 147-155;Ji, J., Feng, L.X., Barbosa, M.A., Stearyl poly(ethylene oxide) grafted surfaces for preferential adsorption of albumin (2001) Biomaterials, 22 (22), pp. 3015-3023; 
Keogh, J.R., Eaton, J.W., Albumin-binding surfaces for biomaterials (1994) The Journal of Laboratory and Clinical Medicine, 124 (4), pp. 537-545; 
Keogh, J.R., Velander, F.F., Eaton, J.W., Albumin-binding surfaces for implantable devices (1992) Journal of Biomedical Materials Research, 26 (4), pp. 441-456; 
Martins, M.C.L., Wang, D., Ji, J., Feng, L., Barbosa, M.A., Albumin and fibrinogen adsorption on Cibacron blue F3G-A immobilised onto PU-PHEMA (polyurethane-poly(hydroxyethylmethacrylate)) surfaces (2003) Journal of Biomaterials Science Polymer Edition, 14 (5), pp. 439-455; 
McFarland, C.D., De Filippis, C., Jenkins, M., Tunstell, A., Rhodes, N.P., Williams, D.F., Albumin-binding surfaces: in vitro activity (1998) Journal of Biomaterials Science Polymer Edition, 9 (11), pp. 1227-1239; 
Munro, M.S., Quattrone, A.J., Ellsworth, S.R., Kulkarni, P., Eberhart, R.C., Alkyl substituted polymers with enhanced albumin affinity (1981) Transactions American Society for Artificial Internal Organs, 27, pp. 499-503; 
Tsai, C.C., Huo, H.H., Kulkarni, P., Eberhart, R.C., Biocompatible coatings with high albumin affinity (1990) ASAIO Transactions, 36 (3), pp. 307-310; 
Wang, D.A., Chen, B.L., Ji, J., Feng, L.X., Selective adsorption of serum albumin on biomedical polyurethanes modified by a poly(ethylene oxide) coupling-polymer with Cibacron blue (F3G-A) endgroups (2002) Bioconjugate Chemistry, 13 (4), pp. 792-803; 
Gon{\c c}alves, I.C., Martins, M.C.L., Barbosa, M.A., Naeemi, E., Ratner, B.D., Selective protein adsorption modulates platelet adhesion and activation to oligo(ethylene glycol)-terminated self-assembled monolayers with C18 ligands (2009) Journal of Biomedical Materials Research Part A, 89 A (3), pp. 642-653; 
Bain, C.D., Troughton, E.B., Tao, Y.T., Evall, J., Whitesides, G.M., Nuzzo, R.G., Formation of monolayer films by the spontaneous assembly of organic thiols from solution onto gold (1989) Journal of the American Chemical Society, 111 (1), pp. 321-335; 
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},
	month = {2009///},
	pages = {5541 - 5551},
	abstract = {This work intended to create a nanostructured biomaterial that would bind albumin in a selective and reversible way in order to inhibit the adsorption of other blood proteins and therefore minimize activation of coagulation. Different levels of C18 ligand have been immobilized on poly(2-hydroxyethyl methacrylate) (pHEMA). We hypothesize that samples with intermediate amounts of C18 ligand would allow albumin to recognize them and bind through its hydrophobic pockets specific for long chain fatty acids. Surface characterization has confirmed increasing amounts of C18 ligand on pHEMA as the percentage of C18 in solution increases, with maximum coverage achieved in 10\% C18 samples. Adsorption from pure albumin solution revealed a small decrease in albumin adsorption from pHEMA to 1\% C18 and 2.5\% C18 samples, but on surfaces with 5\% or higher C18 the amount of adsorbed albumin increased as the percentage of C18 increased. Competitive adsorption studies in the presence of both albumin and fibrinogen, and in the presence of all plasma proteins showed that 1\% C18 and 2.5\% C18 were the only surfaces selective for albumin, and that the presence of all plasma proteins may even potentiate albumin adsorption. Reversibility studies demonstrated that both 2.5\% C18 and 5\% C18 samples exchange                        125I-albumin selectively in the presence of both unlabeled albumin and plasma, but 2.5\% C18 samples presented higher exchangeability rates (58\%). Clotting times using recalcified plasma revealed that samples with none or small amounts of C18 (pHEMA to 5\% C18) did not shorten the clotting time compared to the negative control (polystyrene), indicating low activation of the intrinsic coagulation cascade. {\textcopyright} 2009 Elsevier Ltd. All rights reserved.
},
	keywords = {Adsorption, article, Biocompatible Materials, Biomaterials, blood clotting time, Blood Coagulation Tests, Body fluids, Clotting time, Coagulation, Coated Materials, Biocompatible, concentration response, controlled study, Fatty acids, fibrinogen, human serum albumin, hydrogel, Hydrogels, hydrophilicity, Ligands, long chain fatty acid, materials testing, Plasmas, PolyHEMA, Polyhydroxyethyl Methacrylate, polymacon, Polymer blends, polystyrene, Polystyrenes, priority journal, Protein adsorption, protein binding, Proteins, Serum Albumin, Surface modification, surface property, Surface treatment},
	isbn = {01429612 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-68549112719\&partnerID=40\&md5=aa1dd37881210211ef398092a3be6174},
	author = {Gon{\c c}alves, I.C. and Martins, M.C.L. and Barbosa, M.A. and Ratner, B.D.}
}
@article {2318,
	title = {Role of vascular endothelial growth factor in the communication between human osteoprogenitors and endothelial cells},
	journal = {Journal of Cellular BiochemistryJ. Cell. Biochem.},
	volume = {106},
	year = {2009},
	note = {Cited By (since 1996): 32Export Date: 21 November 2012Source: ScopusCODEN: JCEBDdoi: 10.1002/jcb.22018Language of Original Document: EnglishCorrespondence Address: Grellier, M.; 146 Rue Leo Saignat, Zone Nord, Bat 4A, Case 45, F-33076 Bordeaux Cedex, France; email: maritie.grellier@inserm.frMolecular Sequence Numbers: GENBANK: AB021221, AF063657, AF063658, BC015690, BC021289, NM_000089;Chemicals/CAS: vasculotropin A, 489395-96-2; vasculotropin receptor, 301253-48-5; Receptors, Vascular Endothelial Growth Factor, EC 2.7.1.112; RNA, Messenger; Vascular Endothelial Growth Factor AReferences: Bordenave, L., Baquey, C., Bareille, R., Lefebvre, F., Lauroua, C., Guerin, V., Rouais, F., Anderson, J.M., Endothelial cell compatibility testing of three different Pellethanes (1993) J Biomed Mater Res, 27, pp. 1367-1381;Bouletreau, P.J., Warren, S.M., Spector, J.A., Peled, Z.M., Gerrets, R.P., Greenwald, J.A., Longaker, M.T., Hypoxia and VEGF up-regulate BMP-2 mRNA and protein expression in microvascular endothelial cells: Implications for fracture healing (2002) Plast Reconstr Surg, 109, pp. 2384-2397; 
Carano, R.A., Filvaroff, E.H., Angiogenesis and bone repair (2003) Drug Discov Today, 8, pp. 980-989; 
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Xin, X., Yang, S., Ingle, G., Zlot, C., Rangell, L., Kowalski, J., Schwall, R., Gerritsen, M.E., Hepatocyte growth factor enhances vascular endothelial growth factor-induced angiogenesis in vitro and in vivo (2001) Am J Pathol, 158, pp. 1111-1120
},
	month = {2009///},
	pages = {390 - 398},
	abstract = {Proper bone remodeling requires an active process of angiogenesis which in turn supplies the necessary growth factors and stem cells. This tissue cooperation suggests a cross-talk between osteoblasts and endothelial cells. This work aims to identify the role of paracrine communication through vascular endothelial growth factor (VEGF) in co-culture between osteoblastic and endothelial cells. Through a well defined direct contact co-culture model between human osteoprogenitors (HOPs) and human umbilical vein endothelial cells (HUVECs), we observed that HUVECs were able to migrate along HOPs, inducing the formation of specific tubular-like structures. VEGF                        165 gene expression was detected in the HOPs, was up-regulated in the co-cultured HOPs and both Fit-1 and KDR gene expression increased in co- cultured HUVECs. However, the cell rearrangement observed in co-culture was promoted by a combination of soluble chemoattractive factors and not by VEGF
                        165 alone. Despite having no observable effect on endothelial cell tubular-like formation, VEGF appeared to have a crucial role in osteoblastic differentiation since the inhibition of its receptors reduced the co-culture-stimulated osteoblastic phenotype. This co-culture system appears to enhance both primary angiogenesis events and osteoblastic differentiation, thus allowing for the development of new strategies in vascularized bone tissue engineering. {\textcopyright} 2009 Wiley-Liss, Inc.
},
	keywords = {angiogenesis, article, Cell Communication, cell contact, Cell culture, cell differentiation, cell migration, cell motion, Cell Movement, Cells, Cultured, Co-culture, coculture, Coculture Techniques, controlled study, cytology, Endothelial Cells, endothelium cell, Enzyme Activation, gene expression, gene expression regulation, genetics, human, human cell, Human stem cells, human tissue, Humans, Humulus, messenger RNA, metabolism, Microscopy, Electron, Scanning, Migration, nucleotide sequence, osteoblast, Osteoblasts, Osteogenesis, paracrine signaling, phenotype, priority journal, Receptors, Vascular Endothelial Growth Factor, RNA, Messenger, Scanning electron microscopy, secretion, stem cell, umbilical cord, umbilical vein, upregulation, Vascular Endothelial Growth Factor A, vasculotropin 165, vasculotropin A, vasculotropin receptor, vasculotropin receptor 1, vasculotropin receptor 2, Vegf},
	isbn = {07302312 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-62649105328\&partnerID=40\&md5=eedea600f709f22058168897dc998863},
	author = {Grellier, M. and Ferreira-Tojais, N. and Bourget, C. and Bareillke, R. and Guillemot, F. and Am{\'e}d{\'e}e, J.}
}
@article {2309,
	title = {Selective protein adsorption modulates platelet adhesion and activation to oligo(ethylene glycol)-terminated self-assembled monolayers with C18 ligands},
	journal = {Journal of Biomedical Materials Research - Part AJ. Biomed. Mater. Res. Part A},
	volume = {89},
	year = {2009},
	note = {Cited By (since 1996): 11Export Date: 21 November 2012Source: ScopusCODEN: JBMRCdoi: 10.1002/jbm.a.32011PubMed ID: 18442116Language of Original Document: EnglishCorrespondence Address: Gon{\c c}alves, I. C.; INEB-Instituto de Engenharia Biom{\'e}dica, Laborat{\'o}rio de Biomateriais, Universidade do Porto, Run do Campo Alegre, 823, 4150-180 Porto, Portugal; email: icastro@ineb.up.ptChemicals/CAS: fibrinogen, 9001-32-5; glutaraldehyde, 111-30-8, 37245-61-7; human serum albumin, 9048-49-1; Carbon, 7440-44-0; Ethylene Glycol, 107-21-1; Ligands; Serum AlbuminReferences: Nath, N., Hyun, J., Ma, H., Chilkoti, A., Surface engineering strategies for control of protein and cell interactions (2004) Surf Sci, 570, pp. 98-110;Mao, C., Qiu, Y.Z., Sang, H.B., Mei, H., Zhu, A.P., Shen, J., Lin, S.C., Various approaches to modify biomaterial surfaces for improving hemocompatibility (2004) Adv Colloid Interface Sci, 110, pp. 5-17; 
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},
	month = {2009///},
	pages = {642 - 653},
	abstract = {This study focuses on the selective binding of albumin to a nanostructured surfaces to inhibit other blood proteins from adsorbing thereby reducing platelet adhesion and activation. Tetra (ethylene-glycol)-terminated self- assembled monolayers (EG4 SAMs) with different percentages of CI 8 ligands on the surface were characterized by contact angle measurements, X-ray photoelectron microscopy, infrared reflection-absorption spectroscopy, and ellipsometry. A specific surface (2.5\% C18 SAM) was found to be selective for human serum albumin (HSA) in the presence of both albumin and fibrinogen (HFG). The importance of this concentration of C18 ligands was stressed in reversibility studies since that surface exchanged almost all the preadsorbed HSA by HSA in solution, but not by HFG. The effect of protein adsorption in the subsequent adhesion and activation of platelets was studied by pre-immersing the surfaces in albumin and plasma before contact with platelets. Scanning electron microscopy and glutaraldehyde induced fluorescence technique images showed that as surfaces got more hydrophobic due to the immobilization of C18 ligands, the number of adherent platelets increased and their morphology changed from round to fully spread. Pre-immersion in HSA led to an 80{\textdegree}/o decrease in platelet adhesion and reduction of activation. Pre-immersion in 1\% plasma was only relevant in 2.5\% CI 8 SAMs since this was the only surface that demonstrated less adhesion of platelets comparing with buffer pre-immersion. However, they still adsorb more platelets then when HSA was preadsorbed. This was confirmed in competition studies between HSA and plasma that suggested that other plasma proteins were also adsorbing to this surface. {\textcopyright} 2008 Wiley Periodicals, Inc.},
	keywords = {Absorption spectroscopy, Acoustic microscopes, Adhesion, Adsorption, Albumin, Aldehydes, Angle measurement, article, Biological materials, Biomaterials, Blood Platelets, Blood protein, Blood substitutes, Carbon, Cell Shape, chemical composition, Concentration of, Contact angle, controlled study, Ethylene, Ethylene Glycol, ethylene glycol derivative, fibrinogen, Fluorescence technique, glutaraldehyde, gold nanoparticle, human, human serum albumin, Human serum albumins, Humans, hydrophobicity, Infrared reflection absorption spectroscopy, infrared spectroscopy, ligand, Ligands, Nanostructured surface, normal human, Oligo(ethylene glycol), Photoelectron spectroscopy, plasma, Plasma diagnostics, Plasma protein, Plasmas, Platelet adhesion, Platelet Adhesiveness, Platelets, Protein adsorption, protein binding, Proteins, Sams, Scanning electron microscopy, Selective binding, Selective protein adsorption, self assembled monolayer, Self assembled monolayers, Self-assembled monolayers, Serum Albumin, Specific surface, Spectrophotometry, Infrared, Surface Properties, surface property, thrombocyte activation, thrombocyte adhesion, thrombocyte shape, X ray photoelectron spectroscopy, X-ray photoelectron microscopy},
	isbn = {15493296 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-66249128976\&partnerID=40\&md5=0be21ad44fe5cf556598975ea1655bed},
	author = {Gon{\c c}alves, I.C. and Martins, M.C.L. and Barbosa, M.A. and Naeemi, E. and Ratner, B.D.}
}
@article {2314,
	title = {Sex differences in linear and complex fetal heart rate dynamics of normal and acidemic fetuses in the minutes preceding delivery},
	journal = {Journal of Perinatal MedicineJ. Perinat. Med.},
	volume = {37},
	year = {2009},
	note = {Cited By (since 1996): 4Export Date: 21 November 2012Source: ScopusCODEN: JPEMAdoi: 10.1515/JPM.2009.024PubMed ID: 19021459Language of Original Document: EnglishCorrespondence Address: Bernardes, J.; Faculdade de Medicina, Universidade Do Porto, Ginecologia e Obstetr{\'\i}cia, Al. Hernani Monteiro, Porto, 4200, Portugal; email: jbernardes59@gmail.comReferences: Ayres-de-Campos, D., Bernardes, J., Costa-Pereira, A., Pereira-Leite, L., Inconsistencies in classification by experts of cardiotocograms and subsequent clinical decision (1999) Br J Obstet Gynaecol, 106, pp. 1307-1310;Ayres-de-Campos, D., Bernardes, J., Garrido, A., Marques-de-S{\`a}, J.P., Pereira-Leite, L., SisPorto 2.0 - a program for automated analysis of cardiotocograms (2000) J Matern Fetal Med, 9, pp. 311-318; 
Ayres-de-Campos, D., Costa-Santos, C., Bernardes, J., SisPorto Multicentre Validation Study Group. Prediction of neonatal state by computer analysis of fetal heart rate tracings: The antepartum arm of the SisPorto multicentre validation study (2005) Eur J Obstet Gynecol Reprod Biol, 118, pp. 52-60; 
Ayres-de-Campos, D., Sousa, P., Costa, A., Bernardes, J., Omniview-SisPorto 3.5 - a central fetal monitoring station with online alerts based on computerized cardio-tocogram+ST event analysis (2008) J Perinat Med, 36, pp. 260-264; 
Beckers, F., Verheyden, B., Aubert, A.E., Aging and non-linear heart rate control in a healthy population (2006) Am J Physiol Heart Circ Physiol, 290, pp. H2560-H2570; 
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Bennet, L., Booth, L.C., Ahmed-Nasef, N., Dean, J.M., Davidson, J., Quaedackers, J.S., Male disadvantage? Fetal sex and cardiovascular responses to asphyxia in preterm fetal sheep (2007) Am J Physiol Regul Integr Comp Physiol, 293, pp. R1280-R1286; 
Bernardes, J., Moura, C., Marques-de-S{\'a}, J.P., Pereira-Leite, L., The Porto system for automated cardiotocographic signal analysis (1991) J Perinat Med, 19, pp. 61-65; 
Bernardes, J., Costa-Pereira, A., Ayres-de-Campos, D., van Geijn, H.P., Pereira-Leite, L., Evaluation of interobserver agreement of cardiotocograms (1997) Int J Gynecol Obstet, 57, pp. 33-37; 
Bernardes, J., Ayres-de-Campos, D., Costa-Pereira, A., Pereira-Leite, L., Garrido, A., Objective computerized fetal heart rate analysis (1998) Int J Gynaecol Obstet, 62, pp. 141-147; 
Bernardes, J., Gon{\c c}alves, H., Ayres-de-Campos, D., Rocha, A.P., Linear and complex heart rate dynamics vary with sex in relation to fetal behavioural states (2008) Early Hum Dev, 84, pp. 433-439; 
Boog, G., Analyse informatis{\'e}e du rythme cardiaque foetal au cours de la grosssesse et de l{\textquoteright}accouchement. (2004) Encyclop{\'e}die M{\'e}dico- Chirurgicale, 148, pp. 1-10; 
Browner, W.S., Newman, T.B., Cummings, S.R., Hulley, S.B., (2001) Estimating sample size and power: The nitty-gritty, pp. 65-84. , Hulley SB, Cummings SR, Browner WS, Grady D, Hearst N, Newman TB, editors. Philadelphia: Lippincot Williams \& Wilkins; 
Chaffin, D.G., Barnard, J.M., Phernetton, T., Reed, K.L., Decreased approximate entropy of heart rate variability in the hypoxic ovine fetus (1998) J Matern Fetal Invest, 8, pp. 23-26; 
Dawes, G.S., Moulden, M., Redman, C.W., Improvements in computerized fetal heart rate analysis antepartum (1996) J Perinat Med, 24, pp. 25-36; 
Dawes, N.W., Dawes, G.S., Moulden, M., Redman, C.W., Fetal heart rate patterns in term labor vary with sex, gestational age, epidural analgesia, and fetal weight (1999) Am J Obstet Gynecol, 180, pp. 181-187; 
DiPietro, J.A., Costigan, K.A., Shupe, A.K., Pressman, E.K., Johnson, T.R., Fetal neurobehavioral development: Associations with socioeconomic class and fetal sex (1998) Dev Psychobiol, 33, pp. 79-91; 
Dudewicz, E., Mishra, S., (1998) Modern mathematical statistics, , John Wiley and Sons, Inc; 
Fleisher, L.A., Dipietro, J.A., Johnson, T.R., Pincus, S., Complementary and non-coincident increases in heart rate variability and irregularity during fetal development (1997) Clin Sci (Lond), 92, pp. 345-349; 
Fusheng, Y., Bo, H., Qingyu, T., (1998) Approximate entropy and its application in biosignal analysis, 2, pp. 72-91. , editor. Nonlinear biomedical signal processing, Dynamical analysis and modelling. IEEE Press;; 
Gon{\c c}alves, H., Rocha, A.P., Ayres-de-Campos, D., Bernardes, J., Internal versus external intrapartum foetal heart rate monitoring: The effect on linear and nonlinear parameters (2006) Physiol Meas, 27, pp. 307-319; 
Goncalves, H., Rocha, A.P., Ayres-de-Campos, D., Bernardes, J., Linear and nonlinear fetal heart rate analysis of normal and acidemic fetuses in the minutes preceding delivery (2006) Med Biol Eng Comput, 44, pp. 847-855; 
Goncalves, H., Bernardes, J., Rocha, A.P., Ayres-de-Campos, D., Linear and nonlinear analysis of heart rate patterns associated with fetal behavioral states in the antepartum period (2007) Early Hum Dev, 83, pp. 585-591; 
Groome, L.J., Mooney, D.M., Holland, S.B., Smith, L.A., Atterbury, J.L., Dykman, R.A., Behavioral state affects heart rate response to low-intensity sound in human fetuses (1999) Early Hum Dev, 54, pp. 39-54; 
Ingemarsson, I., Herbst, A., Thorngren-Jerneck, K., Long-term outcome after umbilical artery acidemia at term birth: Influence of gender and duration of fetal heart rate abnormalities (1997) Br J Obstet Gynaecol, 104, pp. 1123-1127; 
Jensen-Urstad, K., Storck, N., Bouvier, F., Ericson, M., Lindblad, L.E., Jensen-Urstad, M., Heart rate variability in healthy subjects is related to age and gender (1997) Acta Physiol Scand, 160, pp. 235-241; 
King, T., Parer, J., The physiology of fetal heart rate patterns and perinatal asphyxia (2000) J Perinat Neonat Nurs, 14, pp. 19-39; 
Kuo, T.B., Yang, C.C., Sexual dimorphism in the complexity of cardiac pacemaker activity (2002) Am J Physiol Heart Circ Physiol, 283, pp. H1695-H1702; 
Li, X., Tang, D., Zhou, S., Zhou, G., Wang, C., Zhuang, Y., Redistribution of power spectrum of heart rate variability during acute umbilical artery embolism and hypoxemia in late-gestation fetal sheep (2004) J Obstet Gynecol Reprod Biol, 114, pp. 137-143; 
Magenes, G., Signorini, M.G., Arduini, D., Classification of cardiotocographic records by neural networks (2000) IJCNN 2000, Proceedings of the IEEE-INNS-ENNS International Joint Conference on Neural Networks, 3, pp. 637-641; 
Martinez, W.L., Martinez, A.R., (2002) Computational statistics handbook with MATLAB, , CRC Press;; 
Pincus, S., Approximate entropy as a measure of system complexity (1991) Proc Natl Acad Sci USA, 88, pp. 2297-2301; 
Pincus, S., Viscarello, R., Approximate Entropy: A regularity measure for fetal heart rate analysis (1992) Obstet Gynecol, 79, pp. 249-255; 
Richman, J.S., Moorman, J.R., Physiological time-series analysis using approximate entropy and sample entropy (2000) Am J Physiol Heart Circ Physiol, 278, pp. H2039-H2049; 
Ryan, S.M., Goldberger, A.L., Pincus, S.M., Mietus, J., Lipsitz, L.A., Gender- and age-related differences in heart rate dynamics: Are women more complex than men? (1994) J Am Coll Cardiol, 24, pp. 1700-1707; 
Sheiner, E., Hadar, A., Hallak, M., Katz, M., Mazor, M., Shoham-Vardi, I., Clinical significance of fetal heart rate tracings during the second stage of labor (2001) Obstet Gynecol, 97, pp. 747-752; 
Signorini, M.G., Magenes, G., Cerrutti, S., Arduini, D., Linear and nonlinear parameters for the analysis of fetal heart rate signal from cardiotacographic recordings (2003) IEEE Transactions on Biomedical Engineering, 50, pp. 365-373; 
Siira, S.M., Ojala, T.H., Vahlberg, T.J., Jalonen, J.O., V{\"a}lim{\"a}ki, I.A., Ros{\'e}n, K.G., Marked fetal acidosis and specific changes in power spectrum analysis of fetal heart rate variability recorded during the last hour of labor (2005) Br J Obstet Gynaecol, 112, pp. 418-423; 
Suzuki, T., Okamura, K., Kimura, Y., Watanabe, T., Yaegashi, N., Murotsuki, J., Power spectral analysis of R-R interval variability before and during the sinusoidal heart rate pattern in fetal lambs (2000) Am J Obstet Gynecol, 182, pp. 1227-1232; 
},
	month = {2009///},
	pages = {168 - 176},
	abstract = {Aim: To assess linear and complex heart rate dynamics in relation to fetal gender in normal and acidemic fetuses during the minutes preceding delivery. Methods: Linear and non-linear fetal heart rate indices, namely mean FHR, long-term irregularity index, short-term variability, low and high frequency spectral indices, approximate and sample entropy, were assessed in 36 female and 30 male fetuses, adjusted for gestational age and weight, during the minutes preceding delivery. Analysis was performed in the initial and final minutes of each tracing in fetuses with umbilical artery blood pH at delivery >=7.20, 7.11-7.19 and <=7.10. Results: Progression of labor was associated with a significant decrease in non-linear indices and an increase in almost all linear indices, both in female and male fetuses, but changes were more marked in female fetuses. Non-acidemic females showed higher mean FHR in the final minutes of labor, compared with males. Acidemic females had higher linear indices when compared to similar male fetuses. Conclusions: During the minutes preceding delivery, female fetuses express higher linear indices than male fetuses, suggesting greater activation of the autonomic nervous system, while maintaining similar complexity indices, which suggests different reaction and adaptation capabilities to stress and distress. {\textcopyright} 2009 by Walter de Gruyter.},
	keywords = {acidemia, Acidemic fetuses, article, autonomic nervous system, Birth Weight, blood pH, Cross-Sectional Studies, delivery, Delivery, Obstetric, entropy, Entropy and spectral analysis, Female, Fetal Heart, fetus, fetus heart rate, Gestational Age, Heart Rate, Fetal, human, Humans, Hydrogen-Ion Concentration, Intrapartum, labor, Labor, Obstetric, male, Pregnancy, priority journal, Retrospective Studies, Sex Characteristics, sex difference, Umbilical Arteries, umbilical artery},
	isbn = {03005577 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-59449089216\&partnerID=40\&md5=7a093bd5c056231b3f8150912abca652},
	author = {Bernardes, J. and Gon{\c c}alves, H. and Ayres-de-Campos, D. and Rocha, A.P.}
}
@conference {2332,
	title = {Changes in detrended fluctuation indices with aging in healthy and congestive heart failure subjects},
	booktitle = {Computers in CardiologyComput Cardiol},
	series = {Computers in Cardiology 2008, CAR},
	volume = {35},
	year = {2008},
	note = {Conference code: 75561Cited By (since 1996): 1Export Date: 21 November 2012Source: ScopusArt. No.: 4748973CODEN: COCADdoi: 10.1109/CIC.2008.4748973Language of Original Document: EnglishCorrespondence Address: Barquero-P{\'e}rez, {\'O}.; B-013, Universidad Rey Juan Carlos, Camino del Molino s/n, Fuenlabrada-28943 Madrid, Spain; email: obarquero@gmail.comReferences: Goldberger, A.L., Nonlinear dynamics, fractals, and chaos theory: Implications for neuroautonomic heart rate control in health and disease (1999) The Autonomic Nervous System, , Bolis C, Licinnio J eds, Geneva: World Health Organization;Peng, C.K., Havlin, S., Stanley, H.E., Goldberger, A.L., Quantification of scaling exponents and crossover phenomena in nonstationary heartbeat time series (1995) Chaos, 5, pp. 82-87; 
Goldberger, A.L., Amaral, L.A.N., Hausdorff, J.M., Ivanov, P.C., Peng, C.K., Stanley, H.E., Fractal dynamics in physiology: Alterations with disease and aging (2002) Proceedings of the National Academy of Sciences, 99, p. 119; 
Berger, R.D., Broken fractals: Where{\textquoteright}s the break? (2001) Journal of Cardiovascular Electrophysiology, 12 (1), pp. 33-35; 
Mandelbrot, B.B., van Ness, J.W., Fractional Brownian motions, fractional noises and applications (1968) SIAM Review, 10, pp. 422-437; 
Kantelhardt, J.W., Zschiegner, S.A., Koscielny-Bunde, E., Havlin, S., Bunde, A., Stanley, H.E., Multifractal detrended fluctuations analysis of nonstationary time series (2002) Physica A, 316, pp. 87-114; 
Goldberger, A.L., Amaral, L.A.N., Glass, L., Hausdorff, J.M., Ivanov, P.C., Mark, R.G., Mietus, J.E., Stanley, H.E., PhysioBank, PhysioToolkit, and PhysioNet: Components of a new research resource for complex physiologic signals (2000) Circulation, 101 (23), pp. e215-e220. , June 13; 
Malik, M., Cripps, T., Farrell, T., Camm, A., Prognostic value of heart rate variability after myocardial infarction. a comparison of different data-processing methods (1989) Medical and Biological Engineering and Computing, 27, pp. 603-621; 
Huikuri, H.V., M{\"a}kikallio, T.H., Perki{\"o}m{\"a}ki, J., Measurement of heart rate variability by methods based on nonlinear dynamics (2003) Journal of Electrocardiology, 36, pp. 95-99; 
Rojo-{\'A}lvarez, J., S{\'a}nchez-S{\'a}nchez, A., Barquero-Prez, O., Goya-Esteban, R., Everss, E., Mora-J{\'\i}menez, I., Garc{\'\i}a-Alberola, A., Analysis of physiological meaning of detrended fluctuation analysis in heart rate variability using a lumped parameter model (2007) Computers in Cardiology, 34, pp. 25-28
},
	month = {2008///},
	pages = {45 - 48},
	address = {Bologna},
	abstract = {Detrended Fluctuation Analysis (DFA) aims to quantify the fractal correlation properties in nonstationary time series, and it has successfully been applied in the assessment of the Heart Rate Variability (HRV) for cardiac risk stratification purposes. However the physiological meaning of DFA indices and its relation with aging have not yet been completely established. Given that a loss of complexity in the physiological regulation of elderly subjects has been reported in the literature, we hypothesized that DFA indices could be modified by aging. In this work we computed the Hurst exponent (estimated using DFA method) and DFA indices α                        1 and α
                        2 to assess the HRV in healthy and Congestive Heart Failure (CHF) subjects, and we studied the dependence of these indices on aging for both healthy and CHF subjects. We found that only α2 and Hurst exponent, and only in the case of healthy subjects, have significant discrimination capability to distinguish between young and elderly groups, and also that these indices have a steady increase with aging. Therefore, we can conclude that the loss of complexity due to aging can be quantified by changes in the values of α
                        2 and Hurst exponent.
},
	keywords = {Cardiology, Congestive heart failures, Correlation properties, Detrended fluctuation analysis, DFA methods, Healthy subjects, Heart rate variabilities, Heart valve prostheses, Hurst exponents, Non-stationary time series, Risk analysis, Risk perception, Risk stratifications, Table lookup, Time series, Time series analysis},
	isbn = {02766574 (ISSN); 1424437067 (ISBN); 9781424437061 (ISBN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-62249107413\&partnerID=40\&md5=f528b40d49f9968db744c5cd19069493},
	author = {Barquero-P{\'e}rez, {\'O}. and De S{\'a}, J.M. and Rojo-{\'A}lvarez, J.L. and Goya-Esteban, R.}
}
@conference {2326,
	title = {Characterization of heart rate variability loss with aging and heart failure using sample entropy},
	booktitle = {Computers in CardiologyComput Cardiol},
	series = {Computers in Cardiology 2008, CAR},
	volume = {35},
	year = {2008},
	note = {Conference code: 75561Export Date: 21 November 2012Source: ScopusArt. No.: 4748972CODEN: COCADdoi: 10.1109/CIC.2008.4748972Language of Original Document: EnglishCorrespondence Address: Goya-Esteban, R.; Universidad Rey Juan Carlos, Camino del Molino s/n, Fuenlabrada-28943 Madrid, Spain; email: rebegoya@gmail.comReferences: Pincus, S.M., Approximate entropy as a measure of system complexity (1991) Proc Natl Acad Sci, 88, pp. 2297-2301;Pincus, S.M., Goldberger, A.L., Physiological time-series analysis: What does regularity quantify? (1994) Am J Physiol Heart Circ Physiol, 35, pp. 1643-1656; 
Pincus, S.M., Assesing serial irregularity and its implications for health (2001) Annals New York Academy of Sciences, 954, pp. 245-267; 
Marques-de, S.J., Characterization of fetal heart rate using approximate entropy (2005) IEEE Computers in Cardiology, 32, pp. 671-673; 
Richman, J.S., Moorman, J.R., Physiological time-series analysis using approximate entropy and sample entropy (2000) Am J Physiol Heart Circ Physiol, 278, pp. 2039-2049; 
Goldberger, A.L., Amaral, L.A.N., Glass, L., Hausdorff, J.M., Ivanov, P.C., Mark, R.G., Mietus, J.E., Stanley, H.E., PhysioBank, PhysioToolkit, and PhysioNet: Components of a new research resource for complex physiologic signals (2000) Circulation, 101 (23), pp. e215-e220. , June 13; 
Malik, M., Cripps, T., Farrell, T., Camm, A., Prognostic value of heart rate variability after myocardial infarction. a comparison of different data-processing methods (1989) Medical and Biological Engineering and Computing, 27, pp. 603-621; 
Signorini, M., Ferrario, M., Marchetti, M., Marseglia, A., Nonlinear analysis of heart rate variability signal for the characterization of cardiac heart failure patients (2006) Conf Proc IEEE Eng Med Biol Soc, 1 (1), pp. 3431-3434
},
	month = {2008///},
	pages = {41 - 44},
	address = {Bologna},
	abstract = {Entropy based measures, such as Sample Entropy (SampEn), have been widely used for quantifying the Heart Rate Variability (HRV) for cardiac risk stratification purposes, with the hypothesis that decreasing entropy points to a perturbation of the complex physiological mechanisms or disease. However, in the literature, higher entropy values have been reported for some pathologies than for healthy subjects, which could be due to the use of a threshold value r tuned relative to the signal standard deviation. In the present paper we apply SampEn to assess the variability of the RR time series from healthy subjects and subjects with Congestive Heart Failure (CHF) in order to discriminate between both groups, as well as to characterize the variability loss due to aging. We conclude that the use of a fixed threshold value r in the SampEn algorithm instead of its conventional setting (as a percentage of the standard deviation of each data series), improves the discrimination capabilities between healthy and CHF subjects, and it allows to quantify the loss of HRV due to aging in healthy subjects.},
	keywords = {Cardiology, Congestive heart failures, Data series, entropy, Entropy values, Fixed thresholds, Healthy subjects, Heart failures, Heart rate variabilities, Heart valve prostheses, Physiological mechanisms, Risk stratifications, Sample entropies, Signal standard deviations, Standard deviations, Table lookup, Time series},
	isbn = {02766574 (ISSN); 1424437067 (ISBN); 9781424437061 (ISBN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-62249148798\&partnerID=40\&md5=8e431df62b6a4b2d13e5d71570608d91},
	author = {Goya-Esteban, R. and De S{\'a}, J.P.M. and Rojo-{\'A}lvarez, J.L. and Barquero-P{\'e}rez, O.}
}
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	title = {A clinical report of bone regeneration in maxillofacial surgery using bonelike{\textregistered} synthetic bone graft},
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	year = {2008},
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Gutierres, M., Hussain, N.S., Lopes, M.A., Afonso, A., Cabral, A.T., Almeida, L., Santos, J.D., Histomorphometric Measurements Histological and SEM Analyses of bone/ implant Interface: Clinical Trials using Bonelike{\textregistered} Granules (2006) J. Orthop. Res., 24, p. 953
},
	month = {2008///},
	pages = {373 - 385},
	abstract = {The objective of this study is to evaluate the osteoconductivity and bioactivity of the Bonelike{\textregistered} graft in repairing surgical cystic bone defects. Bonelike{\textregistered} is implanted in 11 patients, aged between 24 and 53 years with a mean age of 36 years, consisting of 5 men and 6 women. According to the standard follow up protocols, radiological examinations are performed and Bonelike{\textregistered} /bone retrieved samples have been analyzed histologically using non-decalcified sections obtained perpendicular to bone length axis. Radiographic examination and histological results clearly demonstrate an extensive new bone formation apposed on Bonelike{\textregistered} granules with a significant degree of maturation. These clinical applications in maxillary bone defects indicate perfect bone bonding between new bone formed and Bonelike{\textregistered} granules, along with partial surface biodegradation. This quick and effective osteoconductive response from Bonelike{\textregistered} may reduce the time needed to reconstruct the bone defected area of patients. {\textcopyright} 2008 Sage Publications.},
	keywords = {adult, article, Bioactivity, Bone, bone prosthesis, Bone Regeneration, Bone Substitutes, bone transplantation, Bonelike{\textregistered}, clinical trial, facial bone, Facial Bones, Female, Histological studies, histology, human, Humans, Implants (surgical), instrumentation, male, Maxillofacial surgery, methodology, Middle Aged, oral surgery, Pathology, Radiography, Radiology, Regeneration, Surgery, Surgery, Oral, Synthetic bone graft, treatment outcome},
	isbn = {08853282 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-37249042186\&partnerID=40\&md5=ab2c9e9614d3f4f521445c149cff57ec},
	author = {Sousa, R.C. and Lobato, J.V. and Maur{\'\i}cio, A.C. and Hussain, N.S. and Botelho, C.M. and Lopes, M.A. and Santos, J.D.}
}
@article {2342,
	title = {Comparative study of nanohydroxyapatite microspheres for medical applications},
	journal = {Journal of Biomedical Materials Research - Part AJ. Biomed. Mater. Res. Part A},
	volume = {86},
	year = {2008},
	note = {Cited By (since 1996): 22Export Date: 21 November 2012Source: ScopusCODEN: JBMRCdoi: 10.1002/jbm.a.31634PubMed ID: 17975824Language of Original Document: EnglishCorrespondence Address: Mateus, A. Y. P.; INEB - Instituto de Engenharia Biom{\'e}dica, Laborat{\'o}rio de Biomateriais, Rua do Campo Alegre 823, 4150-180 Porto, Portugal; email: yovana@ibmc.up.ptChemicals/CAS: alginic acid, 28961-37-7, 29894-36-8, 9005-32-7, 9005-38-3; calcium hydroxide, 1305-62-0; calcium phosphate, 10103-46-5, 13767-12-9, 14358-97-5, 7758-87-4; calcium, 7440-70-2; dodecyl sulfate sodium, 151-21-3; neutral red, 553-24-2; phosphoric acid, 7664-38-2; Biocompatible Materials; Durapatite, 1306-06-5; PowdersReferences: Jarcho, M., Calcium phosphates ceramics as hard tissue prosthetics (1981) Clin Orthop Relat Res, 157, pp. 259-278;Bucholz, R., Carlton, A., Holmes, R., Hydroxyapatite and tricalcium phosphate bone graft substitutes (1987) Orthop Clin N Am, 18, pp. 323-334; 
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Jarudilokkula, S., Tanthapanichakoonb, W., Boonamnuayvittayaa, V., Synthesis of hydroxyapatite nanoparticles using an emulsion liquid membrane system Colloids Surf A, , Forthcoming; 
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},
	month = {2008///},
	pages = {483 - 493},
	abstract = {This study concerns the preparation, physical, and in vitro characterization of two different types of hydroxyapatite (HA) microspheres, which are intended to be used as drug-delivery systems and bone-regeneration matrices. Hydroxyapatite nanoparticles (HA-1 and HA-2) were prepared using the chemical precipitation synthesis with H                        3PO
                        4, Ca(OH) 
                        2, and a surfactant, SDS (sodium dodecyl sulfate), as starting reagents. The HA powders were dispersed in a sodium alginate solution, and spherical particles were obtained by droplet extrusion coupled with ionotropic gelation in the presence of Ca
                        2+. These were subsequently sintered to produce HA-1 and HA-2 microspheres with a uniform size and interconnected microporosity. Both powders and microspheres were characterized using FTIR and X-ray diffraction. Moreover, SEM and mercury intrusion porosimetry were used to analyze the microspheres, and TEM was used to analyze the powders. Results showed that pure HA and mixtures of HA/β-TCP in the nanometer range and needlelike shape were obtained for HA-1 and HA-2 powders, respectively. Neutral Red, scanning electron microscopy and confocal microscopy were used to evaluate the behavior of osteoblastic-like MG-63 cells cultured on HA microspheres surfaces for 7 days. Results showed that good adhesion and proliferation of osteoblasts on the HA microspheres surface. Cells built bridges between adjacent microspheres, forming microspheres-cells clusters in both types of materials. {\textcopyright} 2007 Wiley Periodicals, Inc.
},
	keywords = {alginic acid, analytic method, Apatite, article, Biocompatible Materials, Biological materials, biomaterial, Bone Regeneration, Calcium, calcium hydroxide, calcium phosphate, cell adhesion, Cell Line, cell proliferation, Chemical precipitation, Chemotherapy, Comparative studies, comparative study, controlled study, dodecyl sulfate sodium, Drug delivery, Drug delivery system (DDS), Drug Delivery Systems, Drug dosage, Durapatite, Gelation, human, human cell, Humans, hydroxyapatite, Hydroxyapatite (HAP), Hydroxylation, In vitro characterization, in vitro study, infrared spectroscopy, materials testing, Medical applications, Mercury intrusion porosimetry, microsphere, Microspheres, Nano-hydroxyapatite (n-HA), Nanohydroxyapatite, nanoparticle, nanoparticles, neutral red, osteoblast, Osteoblasts, Particle Size, phosphoric acid, porosity, powder, Powders, precipitation, Precipitation (chemical), reagent, Regeneration (renovating), Scanning electron microscopy, surfactant, synthesis, Synthesis (chemical), X ray diffraction},
	isbn = {15493296 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-47049103112\&partnerID=40\&md5=138b3e2f3a97d8b398546d3f85567a0f},
	author = {Mateus, A.Y.P. and Barrias, C.C. and Ribeiro, C. and Ferraz, M.P. and Monteiro, F.J.}
}
@article {2349,
	title = {Frequency domain and entropy analysis of fetal heart rate: Appealing tools for fetal surveillance and pharmacodynamic assessment of drugs},
	journal = {Cardiovascular and Hematological Disorders - Drug TargetsCardiovasc. Hematol. Disord. Drug Targets},
	volume = {8},
	year = {2008},
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},
	month = {2008///},
	pages = {91 - 98},
	abstract = {Recently, frequency domain and entropy analysis of fetal heart rate (FHR) have been assessed in several studies, providing new insights into physiologic regulatory mechanisms, constituting appealing tools for pharmacodynamic assessment, namely during fetal life. There is evidence that entropy and frequency domain analysis convey information on cortical and autonomic nervous system activities, respectively. Use of internal versus external FHR acquisition sensors and the signal sampling frequency may dramatically affect results. Most FHR frequency domain indices are significantly increased with rising fetal activity, namely during active wakefulness and active sleep, whereas the opposite occurs with nonlinear indices. This is in favour of increased activity of the autonomous nervous system and decreased activity of the central nervous system complexity control systems, during periods of fetal activity. Progression of labor is associated with a significant increase in FHR frequency domain indices, whereas entropy indices are significantly decreased. This denotes activation of the autonomic nervous system in the final minutes of labour, associated with decreased central nervous system activity. The emerging knowledge on FHR frequency domain and entropy analysis substantiates a continued interest of these methods in evaluation of the fetal pathophysiologic regulatory mechanisms, and opens new perspectives for clinical and pharmacodynamic assessment. {\textcopyright} 2008 Bentham Science Publishers Ltd.},
	keywords = {acidemia, adrenergic receptor stimulating agent, alpha adrenergic receptor blocking agent, anticonvulsive agent, article, atropine, autonomic nervous system function, beta adrenergic receptor blocking agent, betamethasone, Cardiotocography, central depressant agent, central nervous system function, cholinergic receptor blocking agent, chronotropism, Computerized analysis, drug effect, drug mechanism, electronic sensor, entropy, External and internal monitoring, Female, Fetal behavioral states, Fetal heart rate (FHR), Fetal monitoring, fetus, fetus heart rate, fetus monitoring, frequency analysis, Frequency domain and entropy analysis, gestation period, Heart rate variability, Heart Rate, Fetal, human, Humans, instrumentation, labor, lidocaine, local anesthetic agent, magnesium sulfate, mathematical computing, methodology, nonhuman, opiate, pharmacodynamics, physiology, Pregnancy, prenatal screening, propranolol, pulse rate, review, salbutamol, signal detection},
	isbn = {1871529X (ISSN)},
	author = {Gon{\c c}alves, H. and Rocha, A.P. and Ayres-de-Campos, D. and Bemardes, J.}
}
@article {2330,
	title = {Hip fractures cluster in space: An epidemiological analysis in Portugal},
	journal = {Osteoporosis InternationalOsteoporosis Int.},
	volume = {19},
	year = {2008},
	note = {Cited By (since 1996): 7Export Date: 21 November 2012Source: ScopusCODEN: OSINEdoi: 10.1007/s00198-008-0623-1PubMed ID: 18536955Language of Original Document: EnglishCorrespondence Address: De Pina, M. F.; Laborat{\'o}rio de Biomateriais, INEB - Instituto de Engenharia Biom{\'e}dica, Rua do Campo Alegre, 823, Porto 4150-180, Portugal; email: fpina@ineb.up.ptReferences: Center, J., Eisman, J., The epidemiology and pathogenesis of osteoporosis (1997) Baillieres Clin Endocrinol Metab, 11, pp. 23-62. , 1;Cooper, C., Melton III, L.J., Marcus, R., Feldman, D., Kelsey, J., Magnitude and Impact of osteoporosis and fractures (1996) Osteoporosis, pp. 419-434. , Academic Press San Diego; 
Walker-Bone, K., Dennison, E., Cooper, C., Epidemiology of osteoporosis (2001) Rheum Dis Clin North Am, 27, pp. 1-18. , 1; 
Cummings, S.R., Melton III, L.J., Epidemiology and outcomes of osteoporotic fractures (2002) Lancet, 359, pp. 1761-1767; 
Cooper, C., Campion, G., Melton, L.J., Hip fractures in the elderly: A world-wide projection (1992) Osteoporos Int, 2, pp. 285-289; 
Karagas, M.R., Lu-Yao, G.L., Barrett, J.A., Heterogeneity of hip fracture: Age, race, sex, and geographic patterns of femoral neck and trochanteric fractures among the US elderly (1996) Am J Epidemiol, 143, pp. 677-682. , 7; 
Jordan, K.M., Cooper, C., Epidemiology of osteoporosis (2002) Best Pract Res Clin Rheumatol, 16, pp. 795-806. , 5; 
Orimo, H., Hashimoto, T., Sakata, K., Trends in the incidence of hip fracture in Japan, 1987-1997: The third nationwide survey (2000) J Bone Miner Metab, 18, pp. 126-131; 
Kennedy, S., Goodchild, M., Gopal, S., The small number problem and the accuracy of spatial databases (1994) Accuracy of Spatial Databases, pp. 187-196. , Taylor and Francis London; 
(1995) Interactive Spatial Data Analysis, , Bailey TC, Gatrell AC (eds) Longman, London; 
Anselin, L., Local indicators of spatial association - LISA (1995) Geogr Anal, 27, pp. 93-115. , 2; 
Chevalley, T., Herrmann, F.R., Delmi, M., Evaluation of the age-adjusted incidence of hip fractures between urban and rural areas: The difference is not related to the prevalence of institutions for the elderly (2002) Osteoporos Int, 13, pp. 113-118; 
Sanders, K., Nicholson, G.C., Ugoni, A.M., Fracture rates lower in rural than urban communities: The Geelong Osteoporosis Study (2002) J Epidemiol Community Health, 56, pp. 466-470; 
Vaz, A.L., Epidemiology and costs of osteoporotic hip fractures in Portugal (1993) Bone, 14, p. 9. , Suppl 1; 
Lofthus, C.M., Osnes, E.K., Falch, J.A., Epidemiology of hip fractures in Oslo, Norway (2001) Bone, 29, pp. 413-418. , 5; 
Nydegger, V., Rizzoli, R., Rapin, C.H., Epidemiology of fractures of the proximal femur in Geneva: Incidence, clinical and social aspects (1991) Osteoporos Int, 2, pp. 42-47. , 1; 
Hernandez, J., Olmos, J.M., Alonso, M.A., Trend in hip fracture epidemiology over a 14-year period in a Spanish population (2006) Osteoporos Int, 17, pp. 464-470; 
Giversen, I.M., Time trends of age-adjusted incidence rates of first hip fractures: A register-based study among older people in Viborg County, Denmark, 1987-1997 (2006) Osteoporos Int, 17, pp. 552-564; 
Coster, A., Haberkamp, M., Allolio, B., Incidence of femoral neck fractures in the German Federal Republic in comparison to other countries (1994) Soz Praventivmed, 39, pp. 287-292. , 5; 
Paspati, I., Galanos, A., Lyritis, G.P., Hip fracture epidemiology in Greece during 1977-1992 (1998) Calcif Tissue Int, 62, pp. 542-547. , 6; 
Kannus, P., Niemi, S., Parkkari, J., Hip fractures in Finland between 1970 and 1997 and predictions for the future (1999) Lancet, 353, pp. 802-805. , 9155
},
	month = {2008///},
	pages = {1797 - 1804},
	abstract = {Summary: Using Portuguese hospital registers (2000-2002) we calculated age-standardized incidence rates of hip fractures. Spatial clusters of high incidence rates were found, with annual averages (per 100,000 inhabitants) varying from 154.4 to 572.2 and 77.3 to 231.5 for women and men, respectively. Geographic inequalities in the occurrence of hip fractures were also found. Introduction: The aim of this study was to identify spatial patterns in the incidence of hip fracture in Portugal during the period 2000 to 2002. Methods: From the National Hospital Discharge Register, admissions of patients (50 years of age or more) with low-energy hip fracture were selected. Age-standardized incidence rates in relation to the municipality of the patients{\textquoteright} place of residence were calculated. Empirical Bayes estimators were used to smooth the local risk and spatial statistics methods were used to identify spatial clusters. Results: Of 25,634 hip fractures in individuals aged 50 years or more caused by low or moderate impact, 19,759 occurred in women (age, mean{\textpm}SD, 80.6{\textpm}8.6 years) and 5,875 in men (age 77.7{\textpm}10.0 years). Incidence rates increased exponentially with age, being higher in women nation-wide (female to male ratio from 1.5 to 5.1). Significant geographic differences were found: the incidence rates (95\% CI) varied from 154.4 (153.6-155.3) to 572.2 (569.5-575.0) in women and 77.3 (76.64-78.05) to 231.5 (229.9-233.0) in men per 100,000 inhabitants. Spatial autocorrelation values (Moran index) were 0.56 and 0.45 for women and men, respectively. Conclusion: Spatial clusters (p<0.0001) of high incidences were identified. Geographic differences in incidence rates were about threefold. Some regions had incidence rates as high as some north European countries. The geographic inequalities could be due to environmental or socioeconomic factors, but further investigation needs to be done to confirm this hypothesis. {\textcopyright} 2008 International Osteoporosis Foundation and National Osteoporosis Foundation.},
	keywords = {adult, Age Distribution, aged, Aged, 80 and over, article, Bayes Theorem, Bone Density, Cluster Analysis, Databases, Factual, falling, Female, fracture, geographic information system, Geographic information systems, hip fracture, Hip fractures, human, Humans, incidence, international classification of diseases, major clinical study, male, Middle Aged, Osteoporosis, Portugal, priority journal, Risk Factors, sex difference, Sex Distribution, Space-Time Clustering, Spatial analysis, Spatial clusters, Spatial dependency},
	isbn = {0937941X (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-55049139569\&partnerID=40\&md5=b45540fcad776b6887f165463b053202},
	author = {De Pina, M.F. and Alves, S.M. and Barbosa, M. and Barros, H.}
}
@book {2362,
	title = {Hybrid chitosan membranes tested in sheep for guided tissue regeneration},
	series = {Key Engineering MaterialsKey Eng Mat},
	volume = {361-363 II},
	year = {2008},
	note = {Cited By (since 1996): 1Export Date: 21 November 2012Source: ScopusCODEN: KEMAELanguage of Original Document: EnglishCorrespondence Address: Cortez, P.P.; Centro de Estudos de Ci{\^e}ncia Animal (CECA), Instituto de Ci{\^e}ncias e Tecnologias Agr{\'a}rias e Agro-Alimentares (ICETA), Campus Agr{\'a}rio de Vair{\~a}o, Rua P. Armando Quintas, 4485-661, Vair{\~a}o, Portugal; email: pcortez@mail.icav.up.ptReferences: Nasser, N.J., Friedman, A., Friedman, M., Moor, E., Mosheiff, R., (2005) Injury, 36, p. 1460;Chandy, T., Sharma, C.P., (1990) Biomater. Artif. Cells Artif. Organs, 18, p. 1; 
Domard, A., Rinaudo, M., (1983) Int J Biol Macromol, 5, p. 49; 
Shirosaki, Y., Tsuru, K., Hayakawa, S., Osaka, A., Lopes, M.A., Santos, J.D., Fernandes, M.H., (2004) Key Eng. Mat, 254-256, p. 857; 
Shirosaki, Y., Tsuru, K., Hayakawa, S., Osaka, A., Lopes, M.A., Santos, J.D., Fernandes, M.H., (2005) Biomaterials, 26, p. 485; 
Ueno, H., Yamada, H., Tanaka, I., Kaba, N., Matsuura, M., Okumura, M., Kadosawa, T., Fujinaga, T., (1999) Biomaterials, 20, p. 1407
},
	month = {2008///},
	pages = {1265 - 1268},
	abstract = {Previous in vitro studies confirmed an improved cytocompatibility of chitosan-silicate hybrid membranes over chitosan membranes. The main goal of this study was to assess the in vivo histocompatibility of both membranes through subcutaneous implantations at different time periods, 1 week, 1, 2 and 3 months, using a sheep model. Chitosan membranes elicited an exuberant inflammatory response and were consequently rejected. The hybrid chitosan membranes were not rejected and the degree of inflammatory response decreased gradually until the third month of implantation. Histological evaluation also showed that these membranes can be resorbed in vivo. This study demonstrates that the incorporation of silicate into the chitosan solution improves its histocompatibility, indicating that the hybrid chitosan-silicate membranes are suitable candidates to be used in clinical applications.},
	keywords = {biodegradability, Biodegradable membrane, Biodegradable membranes, chitosan, Chitosan-silicate hybrid, Guided tissue regeneration (GTR), histology, in vivo study, Membranes, Silicates, Tissue culture},
	isbn = {10139826 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-38149018476\&partnerID=40\&md5=9a6734a40aa84667fe014796596e1ef3},
	author = {Cortez, P.P. and Shirosaki, Y. and Botelho, C.M. and Sim{\~o}es, M.J. and Gartner, F. and Da Costa, R.M.G. and Tsuru, K. and Hayakawa, S. and Osaka, A. and Lopes, M.A. and Santos, J.D. and Maur{\'\i}cio, A.C.}
}
@article {2336,
	title = {Injectability of a bone filler system based on hydroxyapatite microspheres and a vehicle with in situ gel-forming ability},
	journal = {Journal of Biomedical Materials Research - Part B Applied BiomaterialsJ. Biomed. Mater. Res. Part B Appl. Biomater.},
	volume = {87},
	year = {2008},
	note = {Cited By (since 1996): 9Export Date: 21 November 2012Source: ScopusCODEN: JBMRGdoi: 10.1002/jbm.b.31066PubMed ID: 18437700Language of Original Document: EnglishCorrespondence Address: Oliveira, S. M.; Escola Superior de Tecnologia de Viseu (ESTV), Dep. de Eng. Mec{\^a}nica e Gest{\~a}o Industrial, 3504-510 Viseu, Portugal; email: serafim@ineb.up.ptChemicals/CAS: alginic acid, 28961-37-7, 29894-36-8, 9005-32-7, 9005-38-3; calcium carbonate, 13397-26-7, 13701-58-1, 14791-73-2, 471-34-1; gluconolactonase, 9012-44-6, 9012-73-1; hydroxyapatite, 1306-06-5, 51198-94-8; Bone Substitutes; Durapatite, 1306-06-5; GelsTradenames: Captal S, Plasma BiotalManufacturers: Plasma BiotalReferences: Ribeiro, C.C., Barrias, C.C., Barbosa, M.A., Calcium phosphate-alginate microspheres as enzyme delivery matrices (2004) Biomaterials, 25, pp. 4363-4373;Grabowski, G.A., Leslie, N., Wenstrup, R., Enzyme therapy for Gaucher disease: The first 5 years (1998) Blood Rev, 12, pp. 115-133; 
Melton, L.J., Melton, L.J., Kan, S.H., Frye, M.A., Wahner, H.W., O{\textquoteright}Fallon, W.M., Riggs, B.L., Epidemiology of vertebral fractures in women (1989) Am J Epidemiol, 129, pp. 1000-1011; 
Carrodeguas, R.G., Lasa, B.V., Del Barrio, J.S., injectable acrylic bone cements for vertebroplasty with improved properties (2004) J Biomed Mater Res B Appl Biomater, 68, pp. 94-104; 
Hee, H.T., Percutaneous vertebroplasty: Current concepts and local experience (2005) Neurol India, 53, pp. 475-482; 
Hide, I.G., Gangi, A., Percutaneous vertebroplasty: History, technique and current perspectives (2004) Clin Radiol, 59, pp. 461-467; 
Verlaan, J.J., Oner, F.C., Verbout, A.J., Dhert, W.J., Temperature elevation after vertebroplasty with polymethylmethacrylate in the goat spine (2003) J Biomed Mater Res B Appl Biomater, 67, pp. 581-585; 
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Uppin, A.A., Hirsch, J.A., Centenera, L.V., Pfiefer, B.A., Pazianos, A.G., Choi, I.S., Occurrence of new vertebral body fracture after percutaneous vertebroplasty in patients with osteoporosis (2003) Radiology, 226, pp. 119-124; 
Barrias, C.C., Ribeiro, C.C., Barbosa, M.A., Adhesion and proliferation of human osteoblastic cells seeded on injectable hydroxyapatite microspheres (2004) Bioceramics, 254, pp. 877-880; 
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Steinert, A., Weber, M., Dimmler, A., Julius, C., Schutze, N., Noth, U., Cramer, H., Hendrich, C., Chondrogenic differentiation of mesenchymal progenitor cells encapsulated in ultrahigh-viscosity alginate (2003) J Orthop Res, 21, pp. 1090-1097; 
Wang, L., Shelton, R.M., Cooper, P.R., Lawson, M., Triffitt, J.T., Barralet, J.E., Evaluation of sodium alginate for bone marrow cell tissue engineering (2003) Biomaterials, 24, pp. 3475-3481; 
Shapiro, L., Cohen, S., Novel alginate sponges for cell culture and transplantation (1997) Biomaterials, 18, pp. 583-590; 
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Bajpai, S.K., Sharma, S., Investigation of swelling/degradation behaviour of alginate beads crosslinked with Ca2+ and Ba2+ ions (2004) React Funct Polym, 59, pp. 129-140; 
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Xu, H.H., Weir, M.D., Burguera, E.F., Fraser, A.M., Injectable and macroporous calcium phosphate cement scaffold (2006) Biomaterials, 27, pp. 4279-4287; 
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Iooss, P., Le Ray, A.M., Grimandi, G., Daculsi, G., Merle, C., A new injectable bone substitute combining poly(epsilon-caprolactone) microparticles with biphasic calcium phosphate granules (2001) Biomaterials, 22, pp. 2785-2794; 
Gauthier, O., Khairoun, I., Bosco, J., Obadia, L., Bourges, X., Rau, C., Magne, D., Weiss, P., Noninvasive bone replacement with a new injectable calcium phosphate biomaterial (2000) J Biomed Mater Res A, 66, pp. 47-54; 
Kuo, C.K., Ma, P.X., Ionically crosslinked alginate hydrogels as scaffolds for tissue engineering, Part 1: Structure, gelation rate and mechanical properties (2001) Biomaterials, 22, pp. 511-521; 
Oakenfull, D., Scott, A., Stabilization of gelatin by sugars and polyols (1986) Food Hydrocolloyds, 1, pp. 163-175; 
Poon, C.Y., Tonicity, O., Osmolality and Osmolarity (2006) Philadelphia: The Science and Practice of Pharmacy, pp. 250-265. , 21st ed; 
Gauthier, O., Bouler, J.M., Weiss, P., Bosco, J., Aguado, E., Daculsi, G., Short-term effects of mineral particle sizes on cellular degradation activity after implantation of injectable calcium phosphate biomaterials and the consequences for bone substitution (1999) Bone, 25, pp. 71S-74S; 
Gisep, A., Curtis, R., Hanni, M., Suhm, N., Augmentation of implant purchase with bone cements: An in vitro study of injectability and dough distribution (2006) J Biomed Mater Res B Appl Biomater, 77, pp. 114-119; 
Ginebra, M.P., Rilliard, A., Fernandez, E., Elvira, C., San Roman, J., Planell, J.A., Mechanical and rheological improvement of a calcium phosphate cement by the addition of a polymeric drug (2001) J Biomed Mater Res, 57, pp. 113-118; 
Krebs, J., Ferguson, S.J., Bohner, M., Baroud, G., Steffen, T., Heini, P.F., Clinical measurements of cement injection pressure during vertebroplasty (2005) Spine, 30, pp. E118-E122; 
Bohner, M., Baroud, G., Injectability of calcium phosphate pastes (2005) Biomaterials, 26, pp. 1553-1563; 
Hernandez, L., Gurruchaga, M., Goni, I., Influence of powder particle size distribution on complex viscosity and other properties of acrylic bone cement for vertebroplasty and kyphoplasty (2006) J Biomed Mater Res B Appl Biomater, 77, pp. 98-103; 
Yoshimine, F., Latta, L.L., Milne, E.L., Sliding characteristics of compression hip screws in the intertrochanteric fracture: A clinical study (1993) J Orthop Trauma, 7, pp. 348-353; 
Jasper, L.E., Deramond, H., Mathis, J.M., Belkoff, S.M., Material properties of various cements for use with vertebroplasty (2002) J Mater Sci Mater Med, 13, pp. 1-5
},
	month = {2008///},
	pages = {49 - 58},
	abstract = {The aim of this study was to test the injectability of a bone filler system based on the combination of ceramic microspheres with a gel-like vehicle, for noninvasive surgery. Porous hydroxyapatite microspheres with a uniform size and an average diameter of 535 {\textpm} 38 μm were prepared, and their compression strength and friability were tested. The sodium-alginate solution with a concentration of 7.25\% (w/v) was used as the vehicle. To promote its in situ gelation, calcium carbonate and D-gluconic-δ-lactone were added to the solution. Microspheres were mixed with the vehicle at different percentages (20-40 wt \%). Gelation times in the range of 8-20 min, were obtained, depending on the formulation. Mixtures of HAp microspheres with alginate solution at 7.25\% originating a gel in 11 min present an adequate handling time to perform an injection. Their injectability was evaluated using an injection device commonly employed in vertebroplasty surgical procedures, coupled to a texturometer in compression mode. Using an extrusion rate of 0.1 mm/s, the force required to extrude any of the mixtures tested was lower than 100 N. For an extrusion rate of 1 mm/s mixtures with 40 wt \% of microspheres were very difficult to inject. Mixtures with 35 wt \% of microspheres presented the best compromise between injectability and compression strength of the gelled system. MicroCT analysis revealed a homogeneous distribution of the microspheres inside the vehicle, as well as full interconnection of the intra-microspheres spaces. The compression strength for the gelled systems ranged from 80 kPa (gel itself) to 600 kPa (composite with 40 Wt \% of microspheres). {\textcopyright} 2008 Wiley Periodicals, Inc.},
	keywords = {Alginate, alginic acid, Apatite, article, Average diameter, bioengineering, Bone, bone filler system, Bone Substitutes, Calcium, Calcium carbonate, Ceramic, Ceramic microspheres, Coagulation, Colloids, compression, Compression mode, Compression strengths, Compressive Strength, Computerized tomography, Concentration (process), Data compression, Durapatite, Extrusion, Extrusion rates, Fillers, Forming, Gel-forming ability, Gelation, Gels, gluconolactonase, Handling time, Homogeneous distribution, hydrogel, hydroxyapatite, In situ gelation, in situ hybridization, In-situ, Injectability, injection, Injection (oil wells), Micro-CT, microsphere, Microspheres, Mixtures, non invasive procedure, Particle Size, Porous hydroxyapatite, Sodium, Surgery, Surgical procedures, Uniform size, Vehicles, Vertebroplasty},
	isbn = {15524973 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-52449123139\&partnerID=40\&md5=cc648bad01cb2c6aa01d885acac10e8a},
	author = {Oliveira, S.M. and Barrias, C.C. and Almeida, I.F. and Costa, P.C. and Pena Ferreira, M.R. and Bahia, M.F. and Barbosa, M.A.}
}
@article {2366,
	title = {Jaw avascular osteonecrosis after treatment of multiple myeloma with zoledronate},
	journal = {Journal of Plastic, Reconstructive and Aesthetic SurgeryJ. Plast. Reconstr. Aesthetic Surg.},
	volume = {61},
	year = {2008},
	note = {Cited By (since 1996): 3Export Date: 21 November 2012Source: Scopusdoi: 10.1016/j.bjps.2006.06.016PubMed ID: 18068658Language of Original Document: EnglishCorrespondence Address: Maur{\'\i}cio, A.C.; Centro de Estudos de Ci{\^e}ncia Animal (CECA), Instituto de Ci{\^e}ncias, Tecnologias Agr{\'a}rias e Agro-Alimentares (ICETA), Campus Agrario Vairao, Rua Padre Armando Quintas, 4485-661 Vair{\~a}o, Portugal; email: ana.colette@mail.icav.up.ptChemicals/CAS: amoxicillin, 26787-78-0, 34642-77-8, 61336-70-7; cyclophosphamide, 50-18-0; cyclosporin, 79217-60-0; dexamethasone, 50-02-2; erythropoietin, 11096-26-7; thalidomide, 50-35-1; zoledronic acid, 118072-93-8, 131654-46-1, 165800-06-6, 165800-07-7; Bone Density Conservation Agents; Diphosphonates; Imidazoles; zoledronic acid, 118072-93-8References: Mundy, G.R., Bertoline, D.R., Bone destruction and hypercalcemia in plasma cell myeloma (1986) Semin Oncol, 13 (3), pp. 291-299;Belch, A.R., Bergsagel, D.E., Wilson, K., Effect of daily etidronate on the osteolysis of multiple myeloma (1991) J Clin Oncol, 9 (8), pp. 1397-1402; 
Kyle, R.A., Jowsey, J., Kelly, P.J., Multiple myeloma bone disease. The comparative effect of sodium fluoride and calcium carbonate or placebo (1975) N Engl J Med, 293 (26), pp. 1334-1338; 
Kyle, R.A., Multiple myeloma: review of 869 cases (1975) Mayo Clin Proc, 50 (1), pp. 29-40; 
Roodman, G.D., Pathogenesis of myeloma bone disease (2004) Blood Cells Mol Dis, 32 (2), pp. 290-292; 
Berenson, J.R., Myeloma bone disease (2005) Best Pract Res Clin Haematol, 18 (4), pp. 653-672; 
Ruggerio, S.L., Mekrotra, B., Rosenberg, T.J., Osteonecrosis of the jaws associated with the use of bisphosphonates: a review of 63 cases (2004) J Oral Maxillofac Surg, 62, pp. 527-534; 
Rodan, G.A., Fleisch, H.A., Bisphosphonates: mechanism of action (1996) J Clin Invest, 97 (12), pp. 2692-2696; 
Coleman, R.E., Metastatic bone disease: clinical features, pathophysiology and treatment strategies (2001) Cancer Treat Rev, 27 (3), pp. 165-176; 
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Schenk, R., Eggli, P., Fleisch, H., Quantitative morphometric evaluation of the inhibitory activity of new amino-bisphosphonates on bone resorption in the rat (1986) Calcif Tissue Int, 38, pp. 342-349; 
Jung, A., Bisaz, S., Fleisch, H., The binding of pyrophosphate and two diphosphonates by hydroxyapatite crystals (1973) Calcif Tissue Res, 11 (4), pp. 269-280; 
Coukell, A.J., Markham, A., Pamidronate. A review of its use in the management of osteolytic bone metastases, tumor-induced~hypercalcaemia and Paget{\textquoteright}s disease of bone (1998) Drugs Aging, 12 (2), pp. 149-168; 
Hughes, D.E., MacDonald, B.R., Russel, R.G.G., Inhibition of osteoclast-like cell formation by bisphosphonates in long-term cultures of human bone marrow (1989) J Clin Invest, 83 (6), pp. 1930-1935; 
Hughes, D.E., Wright, K.R., Uy, H.L., Bisphosphonates promote apoptosis in murine osteoclasts in vitro and in vivo (1995) J Bone Miner Res, 10 (10), pp. 1478-1487; 
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},
	month = {2008///},
	pages = {99 - 106},
	abstract = {Purpose: Multiple myeloma, the second most common haematopoietic cancer, which represents the collection of plasma-cell neoplasms that invariably becomes fatal when self-renewing myeloma cells begin unrestrained proliferation. The major clinical manifestation of multiple myeloma is related to the loss of bone through osteolysis. This can lead to pathologic fractures, spinal cord compression, hypercalcaemia, and pain. It is also a major cause of morbidity and mortality in these patients, who frequently require radiation therapy, surgery and analgesic medications. Bisphosphonates are specific inhibitors of osteoclastic activity, and are currently used to prevent bone complications and to treat malignant hypercalcaemia in patients with multiple myeloma, or bone metastases from breast and prostate cancers. Hence, osteonecrosis of the mandible has been reported in three patients from Centro Hospitalar de Vila Nova de Gaia (CHVNG) with multiple myeloma treated for over 18-48 months with intravenous zoledronate, commonly prescribed for multiple myeloma therapy. Although, this report alerts clinicians about the potential complication of bone necrosis in patients receiving bisphosphonate therapy, many questions remain concerning the underlying pathogenesis of this process. Patients and methods: The medical and dental records of three patients with multiple myeloma, who were treated in CHVNG in the past 4 years, were reviewed. These three patients presented exposed bone and osteonecrosis of the mandible, and shared one common clinical feature: all of them were treated with bisphosphonate zoledronate, administered intravenously for long periods. Sequential orthopantomograms (OPGs) and histological evaluation have been analysed from the biopsies of the non healing dental extraction sites of these patients. Results: After a routine dental extraction, these patients developed avascular osteonecrosis of the mandible and secondary bone infection with Actinomyces israelii (actinomycotic osteomyelitis), with no evidence of metastatic disease evaluated by biopsy. In these three described clinical cases, surgical debridment without flap elevation, intensive antibiotherapy and the suspension of the zoledronate treatment allowed a partial recovery of the patients. The purpose of this clinical report is to point out that patients suffering from multiple myeloma can develop bone osteonecrosis induced by treatment with bisphosphonates. Research to determine the mechanism of this dental phenomenon is needed to fully validate and substantiate the possible link between bisphosphonate treatment of multiple myeloma or other cancer diseases and avascular osteonecrosis of the jaws. Until then, clinicians involved in the care of patients at risk should consider this possible complication. {\textcopyright} 2006 British Association of Plastic, Reconstructive and Aesthetic Surgeons.},
	keywords = {Actinomyces israelii, adult, aged, amoxicillin, antibiotic therapy, article, avascular necrosis, Avascular osteonecrosis, biopsy, Bisphosphonates, Bone Density Conservation Agents, case report, clinical feature, cyclophosphamide, cyclosporin, dexamethasone, Diphosphonates, drug induced disease, drug inhibition, drug withdrawal, erythropoietin, Female, histology, human, Humans, hypercalcemia, Imidazoles, Jaw, jaw avascular osteonecrosis, male, Mandibular Diseases, morbidity, mortality, Multiple myeloma, osteolysis, Osteonecrosis, pain, panoramic radiography, pathologic fracture, priority journal, Radiography, Panoramic, risk assessment, spinal cord compression, thalidomide, tooth extraction, zoledronic acid},
	isbn = {17486815 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-36649035515\&partnerID=40\&md5=3cc23473fdb164be7f8e067bea9e436e},
	author = {Lobato, J.V. and Maur{\'\i}cio, A.C. and Rodrigues, J.M. and Cavaleiro, M.V. and Cortez, P.P. and Xavier, L. and Botelho, C. and Hussain, N.S. and Santos, J.D.}
}
@article {2347,
	title = {Linear and complex heart rate dynamics vary with sex in relation to fetal behavioural states},
	journal = {Early Human DevelopmentEarly Hum. Dev.},
	volume = {84},
	year = {2008},
	note = {Cited By (since 1996): 16Export Date: 21 November 2012Source: ScopusCODEN: EHDEDdoi: 10.1016/j.earlhumdev.2007.12.001PubMed ID: 18248921Language of Original Document: EnglishCorrespondence Address: Bernardes, J.; Departamento de Ginecologia e Obstetr{\'\i}cia, Faculdade de Medicina, Universidade do Porto and INEB (Instituto Nacional de Engenharia Biom{\'e}dica), Porto, Portugal; email: jbernardes@mail.telepac.ptReferences: Ingemarsson, I., Herbst, A., Thorngren-Jerneck, K., Long term outcome after umbilical artery acidaemia at term birth: influence of gender and duration of fetal heart rate abnormalities (1997) Br J Obstet Gynaecol, 104 (10), pp. 1123-1127;Ingemarsson, I., Gender aspects of preterm birth (2003) BJOG, 110 (SUPPL. 20), pp. 34-38; 
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Gon{\c c}alves, H., Bernardes, J., Rocha, A.P., Ayres-de-Campos, D., Linear and nonlinear analysis of heart rate patterns associated with fetal behavioral states in the antepartum period (2007) Early Hum Dev, 83 (9), pp. 585-591; 
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Goncalves, H., Rocha, A.P., Bernardes, J., Ayres-de-Campos, D., Linear and nonlinear fetal heart rate analysis of normal and acidemic fetuses in the minutes preceding delivery (2006) Med Biol Eng Comput, 44 (10), pp. 847-855; 
Ayres-de-Campos, D., Bernardes, J., Garrido, A., Marques-de-S{\'a}, Pereira-Leite, L., SisPorto 2.0 - a program for automated analysis of cardiotocograms (2000) J Matern Fetal Med, 9, pp. 311-318.; 
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Ayres-de-Campos, D., Costa-Santos, C., Bernardes, J., SisPorto Multicentre Validation Study Group. Prediction of neonatal state by computer analysis of fetal heart rate tracings: the antepartum arm of the SisPorto multicentre validation study (2005) Eur J Obstet Gynecol Reprod Biol, 118 (1), pp. 52-60; 
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},
	month = {2008///},
	pages = {433 - 439},
	abstract = {Background: A better understanding of gender influences on fetal heart rate can help to improve analysis of the latter and perhaps elucidate the increased risk of perinatal death that occurs in males. Aim: To assess differences in linear and complex heart rate dynamics according to fetal sex, in the antepartum period of normal term pregnancies, for patterns associated with fetal behavioural states. Study design and subjects: One hundred and eighty seven fetal heart rate segments of 10-minute duration, acquired with a system for computerized analysis of cardiotocograms and classified into fetal behavioural patterns A, B, C or D were analysed. They had been acquired from 24 female and 23 male term fetuses, with uneventful perinatal outcomes. Four different comparative studies between female and male fetuses were conducted, considering different adjustments for gestational age, weight and FHR pattern. Outcome measures: Indices of linear and nonlinear fetal heart rate variability, namely, long-term irregularity index, very low, low and high frequency spectral indices, approximate entropy and sample entropy. Results: Pattern B was the most frequent, both in female and male fetuses. Pattern A was more likely to be associated to female than male fetuses, whereas the opposite occurred with patterns C and D. Linear indices were significantly higher in male than in female fetuses, whereas the opposite occurred with nonlinear indices. Conclusions: Male fetuses exhibited significantly more linear and significantly less complex fetal heart rate activity than female fetuses, expressing signs of a more active autonomous nervous system and of less active complexity control systems. These aspects may need to be considered when interpreting FHR tracings. {\textcopyright} 2007 Elsevier Ireland Ltd. All rights reserved.},
	keywords = {article, Behavior, Cardiotocography, comparative study, Computerized analysis, Entropy and spectral analysis, Female, Fetal behavioural states and sex, Fetal heart rate, Fetal monitoring, Fetal Movement, fetus, fetus heart rate, Gestational Age, heart hemodynamics, Heart Rate, Fetal, human, Humans, male, normal human, Pregnancy, Pregnancy Outcome, Sex Characteristics, sex difference, SisPorto},
	isbn = {03783782 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-44749091847\&partnerID=40\&md5=0a0fcbbe86dcad0bee063b6cc7687573},
	author = {Bernardes, J. and Gon{\c c}alves, H. and Ayres-de-Campos, D. and Rocha, A.P.}
}
@article {2339,
	title = {Linear and nonlinear heart-rate analysis in a rat model of acute anoxia},
	journal = {Physiological MeasurementPhysiol. Meas.},
	volume = {29},
	year = {2008},
	note = {Cited By (since 1996): 6Export Date: 21 November 2012Source: ScopusCODEN: PMEAEdoi: 10.1088/0967-3334/29/9/010PubMed ID: 18784391Language of Original Document: EnglishCorrespondence Address: Gon{\c c}alves, H.; Departamento de Matem{\'a}tica Aplicada, Faculdade de Ci{\^e}ncias, Universidade Do Porto, Rua do Campo Alegre 687, 4169-007 Porto, Portugal; email: hernani.goncalves@fc.up.ptReferences: American College of Obstetricians and Gynecologists. ACOG Practice Bulletin. Clinical Management Guidelines for Obstetrician-Gynecologists, Number 70, December 2005 (2005) Obstet. Gynecol., 106, pp. 1453-1460;Ayres-De-Campos, D., Bernardes, J., Garrido, A., Marques-De-S{\'a}, J., Pereira-Leite, L., SisPorto 2.0: A program for automated analysis of cardiotocograms (2000) J. Mat. Fet. Med., 9 (5), pp. 311-318; 
Ayres-De-Campos, D., Santos, C., Bernardes, J., Prediction of neonatal state by computer analysis of fetal heart rate tracings: The antepartum arm of the SisPorto{\textregistered} validation study (2005) Eur. J. Obstet. Gynecol. Reprod. Biol., 118 (1), pp. 52-60; 
Beckers, F., Verheyden, B., Aubert, A.E., Aging and nonlinear heart rate control in a healthy population (2006) Am. J. Physiol. Heart Circ. Physiol., 290 (6), pp. 2560-H2570; 
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Gon{\c c}alves, H., Rocha, A.P., Ayres-De-Campos, D., Bernardes, J., Internal versus external intrapartum foetal heart rate monitoring: The effect on linear and nonlinear parameters (2006) Physiol. Meas., 27 (3), pp. 307-319; 
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},
	month = {2008///},
	pages = {1133 - 1143},
	abstract = {The objective of this study was the assessment of heart-rate (HR) dynamics with linear and nonlinear methods during episodes of mechanical ventilation and acute anoxia in rats. Namely, to assess whether linear and nonlinear HR analysis was able to discriminate acute anoxia from baseline in rats and if this was consistent with human foetal and adult studies. Five HR segments of 1 min duration, during baseline recording, mechanical ventilation and first, second and third minutes of induced acute anoxia, were analysed in ten adult Wistar rats. Linear time and frequency domain and nonlinear methods were used, namely mean HR (mHR), long-term irregularity (LTI), interval index (II), low frequency (LF) and high frequency (HF), approximate entropy (ApEn) and sample entropy (SampEn). New parameters for the entropy indices are proposed for the analysis of rats{\textquoteright} HR. Bootstrap percentile confidence intervals and nonparametric statistical tests were used in the evaluation of the differences between segments. During mechanical ventilation a clear spectral band was detectable at the ventilation rate, but mHR, II and the {\textquoteright}new{\textquoteright} entropy indices were the only significantly changed indices. In the transition from baseline-mechanical- ventilation to mechanical-ventilation-induced anoxia, a statistically significant decrease of mHR, II and entropy indices was observed, clearly discriminating these two instances, whereas most linear indices increased. With continued anoxia, most linear indices decreased significantly, whereas entropy remained stably low. These results are consistent with other foetal human and non-human studies and evidence that the rat model may be used for further research on linear and nonlinear analysis of heart-rate dynamics. The transition from baseline to acute anoxia was encompassed by signs of increased activation of the autonomic nervous system sympathetic branch, and decreased or blunted activity of the HR complexity regulatory centres. {\textcopyright} 2008 Institute of Physics and Engineering in Medicine.},
	keywords = {acute disease, animal experiment, animal model, Animals, Anoxia, article, artificial ventilation, bootstrapping, controlled study, entropy, Female, Fetal monitoring, frequency analysis, Heart rate, Heart rate variability, Humans, Linear analysis, linear system, lung ventilation, Models, Cardiovascular, nonhuman, nonlinear system, priority journal, rat, Rats, Rats, Wistar, Rattus, Rattus norvegicus, Respiration, Artificial, Statistical analysis, Variability, Wistar rat, Wistar rats},
	isbn = {09673334 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-51849120545\&partnerID=40\&md5=56be327bb0d959060a2f4a0f080ae264},
	author = {Gon{\c c}alves, H. and Henriques-Coelho, T. and Bernardes, J. and Rocha, A.P. and Nogueira, A. and Leite-Moreira, A.}
}
@book {2329,
	title = {A list scheduling algorithm for scheduling multi-user jobs on clusters},
	series = {Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)Lect. Notes Comput. Sci.},
	volume = {5336 LNCS},
	year = {2008},
	note = {Conference code: 75089Cited By (since 1996): 1Export Date: 21 November 2012Source: Scopusdoi: 10.1007/978-3-540-92859-1_13Language of Original Document: EnglishCorrespondence Address: Barbosa, J.; Faculdade de Engenharia, Departamento de Engenharia Inform{\'a}tica, Universidade Do Porto, Rua Dr. Roberto Frias, Porto 4200-465, Portugal; email: jbarbosa@fe.up.ptReferences: Amoura, A.K., Bampis, E., K{\"o}nig, J.-C., Scheduling algorithms for parallel gaussian elimination with communication costs (1998) IEEE Transactions on Parallel and Distributed Systems, 9 (7), pp. 679-686;Barbosa, J., Morais, C., Nobrega, R., Monteiro, A.P., Static scheduling of dependent parallel tasks on heterogeneous clusters. In: Heteropar 2005 (2005) IEEE Computer Society, pp. 1-8. , Los Alamitos; 
Barbosa, J., Padilha, A.J., Algorithm-dependent method to determine the optimal number of computers in parallel virtual machines (1999) LNCS, 1573, pp. 508-521. , Hern{\'a}ndez, V, Palma, J.M.L.M, Dongarra, J, eds, VECPAR 1998, Springer, Heidelberg; 
Barbosa, J., Tavares, J., Padilha, A.J., Linear algebra algorithms in a heterogeneous cluster of personal computers (2000) Proceedings of 9th Heterogeneous Computing Workshop, pp. 147-159. , IEEE CS Press, Los Alamitos; 
Berman, F., Wolski, R., Figueira, S., Schopf, J., Shao, G., Application-level scheduling on distributed heterogeneous networks (1996) Supercomputing 1996; 
Blazewicz, J., Dell{\textquoteright}Olmo, P., Drozdowski, M., Maczka, P., Scheduling multiprocessor tasks on parallel processors with limited availability (2003) European journal of Operational Research, 149, pp. 377-389; 
Blazewicz, J., Machowiak, M., Weglarz, J., Kovalyov, M., Trystram, D., Scheduling malleable tasks on parallel processors to minimize the makespan (2004) Annals of Operations Research, 129, pp. 65-80; 
Shivle, S., Mapping of subtasks with multiple versions in a heterogeneous ad hoc grid environment (2004) Heteropar 2004. IEEE Computer Society, , Los Alamitos; 
Kim, J.-K., Dynamically mapping tasks with priorities and multiple deadlines in a heterogeneous environment (2007) Journal of Parallel and Distributed Computing, 67, pp. 154-169; 
Geijn, R., Watts, J., Summa: Scalable universal matrix multiplication algorithm (1995), Technical Report CS-95-286, University of Tennessee, KnoxvilleGerasoulis, A., Yang, T., On the granularity and clustering of directed acyclic task graphs (1993) IEEE Transactions on Parallel and Distributed Systems, 686-701. , June; 
Jansen, K., Scheduling malleable parallel tasks: An asymptotic fully polynomial time approximation scheme (2004) Algorithmica, 39, pp. 59-81; 
Kwok, Y., Ahmad, I., Static scheduling algorithms for allocating directed task graphs to multiprocessors (1999) ACM Computing Surveys, 31 (4), pp. 406-471; 
Kwok, Y., Ahmad, I., On multiprocessor task scheduling using efficient state space search approaches (2005) Journal of Parallel and Distributed Computing, 65, pp. 1515-1532; 
Lep{\`e}re, R., Mouni{\'e}, G., Trystram, D., An approximation algorithm for scheduling trees of malleable tasks (2002) European journal of Operational Research, 142, pp. 242-249; 
Oh-Heum, C.K.-Y., Scheduling parallel tasks with individual deadlines (1999) Theoretical Computer Science, 215, pp. 209-223; 
Park, G.-L., Performance evaluation of a list scheduling algorithm in distributed memory multiprocessor systems (2004) Future Generation Computer Systems, 20, pp. 249-256; 
Shirazi, B., Wang, M., Pathak, G., Analysis and evaluation of heuristic methods for static task scheduling (1990) Journal of Parallel and Distributing Computing, 10, pp. 222-232; 
Sinnen, O., Sousa, L., List scheduling: Extension for contention awareness and evaluation of node priorities for heterogeneous cluster architectures (2004) Parallel Computing, 30, pp. 81-101; 
Topcuoglu, H., Hariri, S., Wu, M.-Y., Performance-effective and low-complexity task scheduling for heterogeneous computing (2002) IEEE Transactions on Parallel and Distributed Systems, 13 (3), pp. 260-274; 
Trystram, D., Scheduling parallel applications using malleable tasks on clusters (2001) 15th International Conference on Parallel and Distributed Processing Symposium
Sponsors: Pole de Competivite "Aerospace Valley"; European Centre for Research and Advanced Training in ENSEEIHT; Institut National Polytechmique de Toulouse; Institut de Recherche en Informatique de Toulouse; Universidade do Porto; Universite Paul Sabatier},
	month = {2008///},
	pages = {123 - 136},
	address = {Toulouse},
	abstract = {This paper addresses the problem of scheduling multi-user jobs on clusters, both homogeneous and heterogeneous. A user job is composed by a set of dependent tasks and it is described by a direct acyclic graph (DAG). The aim is to maximize the resource usage by allowing a floating mapping of processors to a given job, instead of the common mapping approach that assigns a fixed set of processors to a user for a period of time. The simulation results show a better cluster usage. The scheduling algorithm minimizes the total length of the schedule (makespan) of a given set of parallel jobs, whose priorities are represented in a DAG. The algorithm is presented as producing static schedules although it can be adapted to a dynamic behavior as discussed in the paper. {\textcopyright} 2008 Springer Berlin Heidelberg.},
	keywords = {Cluster computing, Dynamic behaviors, Electric load shedding, High performance liquid chromatography, List scheduling, Paper addresses, Parallel algorithms, Parallel task, Resource usage, Scheduling, Scheduling algorithms, Simulation results, Static and dynamic scheduling, Total length},
	isbn = {03029743 (ISSN); 3540928588 (ISBN); 9783540928584 (ISBN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-58449125218\&partnerID=40\&md5=2287e7e01d8bab29c2c0bea44372233b},
	author = {Barbosa, J. and Monteiro, A.P.}
}
@article {2350,
	title = {Microstructure, mechanical properties and chemical degradation of brazed AISI 316 stainless steel/alumina systems},
	journal = {Materials Science and Engineering AMater. Sci. Eng. A},
	volume = {480},
	year = {2008},
	note = {Cited By (since 1996): 11Export Date: 21 November 2012Source: Scopusdoi: 10.1016/j.msea.2007.07.015Language of Original Document: EnglishCorrespondence Address: Paiva, O.C.; Instituto Superior de Engenharia do Porto (ISEP), Rua Dr. Antonio Bernardino Almeida 431, 4200-072 Porto, Portugal; email: omp@isep.ipp.ptReferences: Schwartz, M.M., (1990) Ceramic Joining, pp. 75-140. , Schwartz M.M. (Ed), ASM International, Ohio;Nicholas, M.G., (1986) Br. Ceram. Trans. J., 85, pp. 144-146; 
Loehamn, R.E., Tomsia, A.P., (1992) Acta Metall. Mater., 40, pp. S75-S83; 
Hao, H., Wang, Y., Jin, Z., Wang, X., (1995) J. Mater. Sci., 30, pp. 4107-4111; 
Hao, H., Wang, Y., Jin, Z., Wang, X., (1995) J. Mater. Sci., 30, pp. 1233-1239; 
Rongti, L., Wei, P., Jian, C., Jie, L., (2002) Mater. Sci. Eng. A, 335, pp. 21-25; 
Paiva, O.C., Barbosa, M.A., (1997) J. Mater. Sci., 32, pp. 653-659; 
Paiva, O.C., Barbosa, M.A., (1995) Advances in Materials Science and Implant Orthopaedic Surgery, pp. 275-290. , Kossowsky R., and Kossovsky N. (Eds), Kluwer Academic Publishers, Dordrecht, The Netherlands; 
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Paiva, O.C., Ferreira, L., Barbosa, M.A., (1998) Interfacial Science in Ceramic Joining, NATO/ARW Series (3. High Technology), 53, pp. 329-340. , Bellosi A., Kosmac e T., and Tomsia A.P. (Eds), Kluwer Academic Press, Dordrecht, The Netherlands; 
Ariza, E., Rocha, L.A., Paiva, O.C., (2004) Eurocorr2004 Conference Proceedings, , Nice, France CD-Rom; 
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Gibbesch, B., Elssener, G., Petzow, G., (1992) Biomaterials, 13 (7), pp. 455-461; 
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A.D. Bernache, in: M.A. Barbosa et al. (Ed.), Biomaterials Degradation. Fundamental aspects and related clinical phenomena, Elsevier, Amsterdam, E-MRS Monographs I, 1991, 111-167Sequeira, C.A.C., (1995) Br. Corros. J., 30, pp. 137-140; 
LaQue, F.L., (1975) Marine Corrosion, p. 179. , LaQue F.L. (Ed), John Wiley \& Sons; 
Paiva, O.C., Barbosa, M.A., (1998) Bioceramics 11, pp. 699-702. , LeGeros R.Z., and LeGeros J. (Eds), World Scientific Publishing Co. Pte. Ltd., Singapore; 
Paiva, O.C., Barbosa, M.A., (1999) Bioceramics 12, pp. 95-98. , Ohgushi H., Hastings G.W., and Yoshikawa T. (Eds), World Scientific Publishing Co. Pte. Ltd., Singapore; 
Walkiden, G.W., (1978) Corrosion-Metal/Environment Reactions. 2nd ed., 1, pp. 6:1-6:23. , Shreir L.L. (Ed), Newnes-Butterworths; 
Janssens, S., Rocha, L.A., Bosschaerts, L., Barbosa, M.A., Puers, R., Vill{\'e}, H., Geers, R., (1996) Prev. Vet. Med., 25, pp. 249-258; 
Tsalev, D.L., Zaprianov, Z.K., (1983) Atomic Absorption Spectrometry in Occupational and Environmental Health Practice, , CRC Press, Boca Raton pp. 189-192
},
	month = {2008///},
	pages = {306 - 315},
	abstract = {The main aims of the present study are simultaneously to relate the brazing parameters with: (i) the correspondent interfacial microstructure, (ii) the resultant mechanical properties and (iii) the electrochemical degradation behaviour of AISI 316 stainless steel/alumina brazed joints. Filler metals on such as Ag-26.5Cu-3Ti and Ag-34.5Cu-1.5Ti were used to produce the joints. Three different brazing temperatures (850, 900 and 950 {\textdegree}C), keeping a constant holding time of 20 min, were tested. The objective was to understand the influence of the brazing temperature on the final microstructure and properties of the joints. The mechanical properties of the metal/ceramic (M/C) joints were assessed from bond strength tests carried out using a shear solicitation loading scheme. The fracture surfaces were studied both morphologically and structurally using scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and X-ray diffraction analysis (XRD). The degradation behaviour of the M/C joints was assessed by means of electrochemical techniques. It was found that using a Ag-26.5Cu-3Ti brazing alloy and a brazing temperature of 850 {\textdegree}C, produces the best results in terms of bond strength, 234 {\textpm} 18 MPa. The mechanical properties obtained could be explained on the basis of the different compounds identified on the fracture surfaces by XRD. On the other hand, the use of the Ag-34.5Cu-1.5Ti brazing alloy and a brazing temperature of 850 {\textdegree}C produces the best results in terms of corrosion rates (lower corrosion current density), 0.76 {\textpm} 0.21 μA cm},
	keywords = {Active metal brazing, Alumina, Bond strength (materials), Brazing, Electrochemical degradation, Filler metals, fracture, Interface composition, Metal/ceramic joining, Metallic matrix composites, morphology, Processing parameters, Shear strength, Stainless steel},
	isbn = {09215093 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-41149104604\&partnerID=40\&md5=6dfded1210945bb66208633744939f64},
	author = {Paiva, O.C. and Barbosa, M.A.}
}
@article {2334,
	title = {Molecular epidemiology of pseudomonas aeruginosa clinical isolates from Portuguese Central Hospital},
	journal = {Folia MicrobiologicaFolia Microbiol.},
	volume = {53},
	year = {2008},
	note = {Cited By (since 1996): 3Export Date: 21 November 2012Source: ScopusCODEN: FOMIAdoi: 10.1007/s12223-008-0086-yLanguage of Original Document: EnglishCorrespondence Address: Fonseca, A. P.Rua Roberto Frias s/n, 4200-465 Porto, Portugal; email: apfonseca08@sapo.ptChemicals/CAS: DNA, BacterialReferences: Bergmans, D., Bonten, M., van tiel, F., Gaillard, C., London, N., van der Geest, S., de Leeuw, P., Stobbrringh, E., Value of phenotyping methods as an initial screening of Pseudomonas aeruginosa in epidemiologic studies (1997) Infection, 25, pp. 350-354;Bertrand, X., Thouverez, M., Talon, D., Boillot, A., Capellier, G., Floriot, C., Helias, J.P., Endemicity, molecular diversity and colonization routes of Pseudomonas aeruginosa in intensive care units (2001) Intens.Care Med., 27, pp. 1263-1268; 
Br{\'\i}zio, A., Silva, A., Canas, E., Ferreira, T., Lito, L.M., Cristino, J.M., Salgado, M.J., Duarte, A., Spread of ln58 containing bla VIM-2 among Pseudomonas aeruginosa (2006) Clin.Microbiol.Infect.Dis., 12 (SUPPL. 4), p. 931; 
Br{\'\i}zio, A., Vasco, S., Gon{\c c}alves, A.R., Lito, L.M., Cristino, J.M., Salgado, M.J., Duarte, A., Survey of extended-spectrum β-lactamases in Escherichia coli isolates from a Portuguese hospital and characterisation of a novel class 1 integron (In60A) carrying the blaCTX-M-9 gene (2006) Internat.J.Antimicrob.Agents, 28, pp. 320-324; 
Buchholz, P., Richter, M., Fiedler, G., Halle, E., Epidemiological fingerprinting of multiresistant strains of Pseudomonas aeruginosa isolated from patients of intensive care units of the Charit{\'e} Hospital, Berlin (1995) Med.Microbiol.Lett., 4, pp. 7-13; 
{\v C}ernohorsk{\'a}, L., Votava, M., Antibiotic synergy against biofilm-forming Pseudomonas aeruginosa (2008) Folia Microbiol, 53, pp. 57-61; 
Elaichouni, A., Verschraegen, G., Claeys, G., Devleeschouwer, M., Godard, C., Vaneechoutte, M., Pseudomonas aeruginosa serotype O12 outbreak studied by arbitrary primer PCR (1994) J.Clin.Microbiol., 32, pp. 666-671; 
Fonseca, A.P., Correia, P., Fonseca, A.F., Tenreiro, R., Sousa, J.C., Polyphasic approach to the characterization of Pseudomonas aeruginosa isolates from a Portuguese Central Hospital (2004) Clin.Microbiol.Infect., 10 (SUPPL. 3), p. 1113; 
Fonseca, A.P., Correia, P., Sousa, J.C., Tenreiro, R., Association patterns of Pseudomonas aeruginosa clinical isolates as revealed by virulence traits, antibiotic resistance, serotype and genotype (2007) FEMS Immunol.Med.Microbiol., 51, pp. 505-516; 
Grundmann, H., Kropec, A., Hartung, D., Berner, R., Daschner, F., Pseudomonas aeruginosa in a neonatal intensive care unit: Reservoirs and ecology of the nosocomial pathogen (1993) J.Infect.Dis., 168, pp. 943-947; 
Grundmann, H.J., Towner, K.J., Dijkshoorn, L., Gerner-smidt, P., Maher, M., Seifert, H., Vaneechoutte, M., Multicenter study using standardized protocols and reagents for evaluation of reproducibility of PCR-based fingerprinting of Acinetobacter spp (1997) J.Clin.Microbiol., 35, pp. 3071-3077; 
Ho{\v s}tack{\'a}, A., {\v C}i{\v z}n{\'a}r, I., Slobodn{\'\i}kov{\'a}, L., Kotulov{\'a}, D., Clinical Pseudomonas aeruginosa: Potential factors of pathogenicity and resistance to antimicrobials (2006) Folia Microbiol, 51, pp. 633-638; 
Hunter, P.R., Gaston, M.M., Numerical index of the discriminatory ability of typing systems: An application of Simpson{\textquoteright}s index of diversity (1989) J.Clin.Microbiol., 26, pp. 2465-2466; 
Huston, W.M., Potter, A.J., Jennings, M.P., Rello, J., Hauser, A.R., McEwan, A.G., Survey of ferroxidase expression and siderophore production in clinical isolates of Pseudomonas aeruginosa (2004) J.Clin.Microbiol., 42, pp. 2806-2809; 
Jalaluddin, S., Devaster, J.-M., Scheen, R., Gerard, M., Butzler, J.-P., Molecular epidemiological study of nosocomial Enterobacter aerogenes isolates in a Belgian hospital (1998) J.Clin.Microbiol., 36, pp. 1846-1852; 
Juretschko, S., Labombardi, V.J., Lerner, S.A., Schreckenberger, P.C., Pseudomonas AST Study Group: Accuracies of β-lactam susceptibility test results for Pseudomonas aeruginosa with four automated systems (BD Phoenix, MicroScan WalkAway, Vitek, and Vitek 2) (2007) J.Clin.Microbiol., 45, pp. 1339-1342; 
King, E.O., Ward, M.K., Raney, D.E., Two simple media for the demonstration of pyocyanin and fluorescein (1954) J.Lab.Clin.Med., 44, pp. 301-307; 
Kiska, D.L., Gilligan, P.H., Pseudomonas and Burkholderia (1999) Manual of Clinical Microbiology, pp. 517-525. , in P.R.Murray,E.J.Baron,M.A.Pfaller,F.C.Tenover,R.H.Yolken(Eds) 7th ed. American Society for Microbiology,Washington (DC); 
Morales, G., Wiehlmann, L., Gudowius, P., van Delden, C., T{\"u}mmler, B., Mart{\'\i}nez, J.L., Rojo, F., Structure of Pseudomonas aeruginosa populations analyzed by single nucleotide polymorphism and pulsed-field gel electrophoresis genotyping (2004) J.Bacteriol., 186, pp. 4228-4237; 
Nogueira, J.A., (1995) Pseudomonas Aeruginosa - Agente Nosocomial, , (In Portuguese) PhD Thesis. Faculdade de Medicina, Universidade do Porto, Porto (Portugal); 
Olive, P.B.D., Principles and applications of methods for DNA-based typing of microbial organisms (1999) J.Clin.Microbiol., 37, pp. 1661-1669; 
Pirnay, J.P., de Vos, D., Cochez, C., Bilocq, F., Vanderkelen, A., Zizi, M., Ghysels, B., Cornelis, P., Pseudomonas aeruginosa displays an epidemic population structure (2002) Environ.Microbiol., 4, pp. 898-911; 
Pirnay, J.P., Matthijs, S., Colak, H., Chablain, P., Bilocq, F., Van eldere, J., de Vos, D., Cornelis, P., Global Pseudomonas aeruginosa biodiversity as reflected in a Belgian river (2005) Environ.Microbiol., 7, pp. 969-980; 
Speijer, H., Savelkoulp, P.H.M., Bonten, M.J., Stobberingh, E.E., Tjhie, J.H.T., Application of different genotyping methods for Pseudomonas aeruginosa in a setting of endemicity in an intensive care unit (1999) J.Clin.Microbiol., 37, pp. 3654-3661; 
Tenover, F., Arbeit, R.D., Goering, R.V., Mickelsen, P.A., Murray, B.E., Persing, D.H., Swaminathan, B., Interpreting chromosomal DNA restriction patterns produced by pulsed-field gel electrophoresis: Criteria for bacterial strain typing (1995) J.Clin. Microbiol., 33, pp. 2233-2239; 
Wiehlmann, L., Wagner, G., Cramer, N., Siebert, B., Gudowius, P., Morales, G., K{\"o}hler, T., T{\"u}mmler, B., Population structure of Pseudomonas aeruginosa (2007) Proc.Nat.Acad.Sci.USA, 104, pp. 8101-8106
},
	month = {2008///},
	pages = {540 - 546},
	abstract = {The relatedness between clinical isolates of P. aeruginosa obtained from patients during their stay in a Portuguese Central Hospital was evaluated. Genotypic fingerprinting (M13-PCR), phenotypic methods (biotyping and antibiotyping) and epidemiological information (spatial and temporal links) were used to evaluate the relatedness between 88 clinical isolates (68 patients), selected randomly out of 189. Sixty-two M13 types were found, 12 of them containing isolates from more than one patient. Thirty-four antibiotypes were found, as well as a significant association (p < 0.05) between epidemic isolates and multiresistance patterns. The nosocomial transmission of P. aeruginosa strains may be limited since M13 typing demonstrated a high degree of diversity among all the isolates, suggesting the occurrence of mainly independent infectious episodes. The results show the possible occurrence of cross-acquisition, cross-colonization and cross-infection and suggest an epidemic population structure for P. aeruginosa in this hospital.},
	keywords = {antibiotic resistance, article, bacterial DNA, cross infection, disease transmission, DNA, Bacterial, Drug Resistance, Microbial, Electrophoresis, Gel, Pulsed-Field, epidemiology, genetics, genotype, Hospitals, Teaching, human, Humans, isolation and purification, microbiology, polymerase chain reaction, Portugal, Pseudomonas aeruginosa, Pseudomonas infection, Pseudomonas Infections, pulsed field gel electrophoresis, Sampling Studies, statistics, teaching hospital},
	isbn = {00155632 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-65549157108\&partnerID=40\&md5=ba6aed0b4b5f511f340fea96df7b6449},
	author = {Fonseca, A.P. and Correia, P. and Extremina, C.I. and Sousa, J.C. and Tenreiro, R. and Barros, H.}
}
@article {2353,
	title = {Omniview-SisPorto{\textregistered} 3.5 - A central fetal monitoring station with online alerts based on computerized cardiotocogram+ST event analysis},
	journal = {Journal of Perinatal MedicineJ. Perinat. Med.},
	volume = {36},
	year = {2008},
	note = {Cited By (since 1996): 13Export Date: 21 November 2012Source: ScopusCODEN: JPEMAdoi: 10.1515/JPM.2008.030Language of Original Document: EnglishCorrespondence Address: Ayres-De-Campos, D.; Departmento Ginecologia e Obstetricia, Faculdade de Medicina, Universidade Do Porto, Alameda Hernani Monteiro, 4200-319 Porto, Portugal; email: sisporto@med.up.ptTradenames: Omniview-SisPorto 3.5 system, SpeculumManufacturers: SpeculumReferences: Amer-Wahlin, I., Arulkumaran, S., Hagberg, H., Marsal, K., Visser, G., Fetal electrocardiogram: ST waveform analysis in intrapartum surveillance (2007) Br J Obstet Gynaecol, 114, pp. 1191-1193;Ayres-de-Campos, D., Bernardes, J., Garrido, A., Marquesde-S{\'a}, J., Pereira-Leite, L., SisPorto 2.0: A program for automated analysis of cardiotocograms (2000) J Matern Fetal Med, 9, pp. 311-318; 
Ayres-de-Campos, D., Bernardes, J., Comparison of fetal heart rate baseline estimation by SisPorto 2.01 and a consensus of clinicians (2004) Eur J Obstet Gynecol Reprod Biol, 117, pp. 174-178; 
Ayres-de-Campos, D., Costa-Santos, C., Bernardes, J., SisPorto Multicentre Validation Study Group. Prediction of neonatal state by computer analysis of fetal heart rate tracings: The antepartum arm of the SisPorto multicentre validation study (2005) Eur J Obstet Gynecol Reprod Biol, 118, pp. 52-60; 
Ayres-de-Campos, D., Bernardes, J., Kwee, A., Westehuis, M., Visser, G.H.A., Computer quantification of short-term variability as an adjunct to fetal electrocardiographic monitoring (2007) Br J Obstet Gynaecol, 114, pp. 1446-1447; 
Bernardes, J., Moura, C., Marques de, S.J., Pereira Leite, L., The Porto system for automated cardiotocographic signal analysis (1991) J Perinat Med, 19, pp. 61-65; 
Electronic fetal heart rate monitoring: Research guidelines for interpretation (1997) Am J Obstet Gynecol, 177, pp. 1385-1390. , National Institute of Child Health and Human Development Research Planning Workshop; 
Neilson, J.P., Fetal electrocardiogram (ECG) for fetal monitoring during labor (2006) Cochrane Database of Systematic Reviews, (3); 
Paneth, N., Bommarito, M., Stricker, J., Electronic fetal monitoring and later outcome (1993) Clin Invest Med, 16, pp. 159-165; 
(2001) Evidence-based clinical guideline: The use of electronic fetal monitoring, , RCOG, Royal College of Obstetricians and Gynaecologists, London, RCOG Press; 
Rooth, G., Huch, A., Huch, R., Guidelines for the use of fetal monitoring (1987) Int J Gynecol Obstet, 25, pp. 159-167
},
	month = {2008///},
	pages = {260 - 264},
	abstract = {Visual analysis of cardiotocograms is poorly reproducible and is currently recognized as the main weakness of the STAN{\textregistered} methodology. The Omniview-SisPorto{\textregistered} 3.5 program is the most recent version of a central monitoring system that provides visual and sound alerts, based on computer analysis of cardiotocographic and ST event features. This paper describes the program{\textquoteright}s main characteristics and provides an overview of the system{\textquoteright}s online alerts. Omniview-SisPorto{\textregistered} 3.5 is the first central monitoring system to incorporate computerized analysis of cardiotocographic and ST event features, providing health professionals with online alerts for minor and major changes in monitored signals. The system is currently undergoing extensive clinical evaluation. {\textcopyright} 2008 by Walter de Gruyter.},
	keywords = {article, Cardiotocography, computer program, Computer-assisted, Electrocardiography, Female, Fetal, Fetal hypoxia, Fetal monitoring, fetus hypoxia, fetus monitoring, Heart rate, human, Humans, instrumentation, online system, Pregnancy, priority journal, Signal processing, ST segment},
	isbn = {03005577 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-44949183434\&partnerID=40\&md5=8a8b193ca1077d049f7333b4f6595962},
	author = {Ayres-de-Campos, D. and Sousa, P. and Costa, A. and Bernardes, J.}
}
@article {2359,
	title = {Osteoblast adhesion and morphology on TiO                    2 depends on the competitive preadsorption of albumin and fibronectin
},
	journal = {Journal of Biomedical Materials Research - Part AJ. Biomed. Mater. Res. Part A},
	volume = {84},
	year = {2008},
	note = {Cited By (since 1996): 34Export Date: 21 November 2012Source: ScopusCODEN: JBMRCdoi: 10.1002/jbm.a.31201PubMed ID: 17607748Language of Original Document: EnglishCorrespondence Address: Sousa, S.R.; INEB - Instituto de Engenharia Biom{\'e}dica, Laborat{\'o}rio de Biomaterials, R. do Campo Alegre, 823, 4150-180 Porto, Portugal; email: ssousa@ibmc.up.ptChemicals/CAS: fibronectin, 86088-83-7; human serum albumin, 9048-49-1; hydrogen peroxide, 7722-84-1; iodine 125, 14158-31-7, 22822-81-7; titanium dioxide, 1317-70-0, 1317-80-2, 13463-67-7, 51745-87-0; Albumins; Coloring Agents; Fibronectins; Iodine Radioisotopes; Neutral Red, 553-24-2; titanium dioxide, 13463-67-7; Titanium, 7440-32-6References: Anselme, K., Osteoblast adhesion on biomaterials (2000) Biomaterials, 21, pp. 667-681;Tidwell, C.D., Ertel, S.I., Ratner, B.D., Tarasevich, B.J., Atre, S., Allara, D.L., Endothelial cell growth and protein adsorption on terminally functionalized, self-assembled monolayers of alkane-thiolates on gold (1997) Langmuir, 13, pp. 3404-3413; 
Malmsten, M., Lassen, B., Competitive adsorption at hydrophobic surfaces from binary protein systems (1994) J Colloid Interface Sci, 166, pp. 490-498; 
Koenig, A.L., Gambillara, V., Grainger, D.W., Correlating fibronectin adsorption with endothelial cell adhesion and signaling on polymer substrates (2003) J Biomed Mater Res A, 64, pp. 20-37; 
Horbett, T.A., The role of adsorbed proteins in animal cell adhesion (1994) Colloids Surf B, 2, pp. 225-240; 
Huang, H.H., Ho, C.T., Lee, T.H., Lee, T.L., Liao, K.K., Chen, F.L., Effect of surface roughness of ground titanium on initial cell adhesion (2004) Biomol Eng, 21, pp. 93-97; 
Vitte, J., Benoliel, A.M., Pierres, A., Bongrand, P., Is there a predictable relationship between surface physical-chemical properties and cell behaviour at the interface? (2004) Eur Cell Mater, 7, pp. 52-63; 
Tsai, W.B., Grunkemeier, J.M., McFarland, C.D., Horbett, T.A., Platelet adhesion to polystyrene-based surfaces preadsorbed with plasmas selectively depleted in fibrinogen, fibronectin, vitronectin, or von Willebrand{\textquoteright}s factor (2002) J Biomed Mater Res, 60, pp. 348-359; 
Grainger, D.W., Pavon-Djavid, G., Migonney, V., Josefowicz, M., Assessment of fibronectin conformation adsorbed to polytetrafluoroethylene surfaces from serum protein mixtures and correlation to support of cell attachment in culture (2003) J Biomater Sci Polym Ed, 14, pp. 973-988; 
Goncalves, I.C., Martins, M.C.L., Barbosa, M.A., Ratner, B.D., Protein adsorption on 18-alkyl chains immobilized on hydroxyl-terminated self-assembled monolayers (2005) Biomaterials, 26, pp. 3891-3899; 
Culp, L.A., Sukenik, C.N., Cell type-specific modulation of fibronectin adhesion functions on chemically-derivatized self-assembled monolayers (1998) J Biomater Sci Polym Ed, 9, pp. 1161-1176; 
Baugh, L., Vogel, V., Structural changes of fibronectin adsorbed to model surfaces probed by fluorescence resonance energy transfer (2004) J Biomed Mater Res A, 69, pp. 525-534; 
McClary, K.B., Ugarova, T., Grainger, D.W., Modulating fibroblast adhesion, spreading, and proliferation using self-assembled monolayer films of alkylthiolates on gold (2000) J Biomed Mater Res, 50, pp. 428-439; 
Sousa, S.R., Moradas-Ferreira, P., Melo, L.V., Saramago, B., Barbosa, M.A., Human serum albumin adsorption on TiO 2 from single protein solutions and from plasma (2004) Langmuir, 20, pp. 9745-9754; 
Gehanno, V., Freitas, P.P., Ferreira, J., Almeida, B., Sousa, J.B., Kling, A., Soares, J.C., Silva, M.F., Ion beam deposition of Mn-Ir spin valves (1999) IEEE Trans Magn, 35, pp. 4361-4367; 
Iodine-125. A Guide to Radioiodination Techniques. Little Chalfont, UK: Amersham Life Science; 1993. p 64Lima, J., Sousa, S.R., Ferreira, A., Barbosa, M.A., Interactions between calcium, phosphate, and albumin on the surface of titanium (2001) J Biomed Mater Res, 55, pp. 45-53; 
Sousa, S.R., Moradas-Ferreira, P., Barbosa, M., TiO 2 type influences fibronectin adsorption (2005) J Mater Sci Mater Med, 16, pp. 1173-1178; 
McFarland, C.D., Mayer, S., Scotchford, C., Dalton, B.A., Steele, J.G., Downes, S., Attachment of cultured human bone cells to novel polymers (1999) J Biomed Mater Res, 44, pp. 1-11; 
McFarland, C.D., Thomas, C.H., DeFilippis, C., Steele, J.G., Healy, K.E., Protein adsorption and cell attachment to patterned surfaces (2000) J Biomed Mater Res, 49, pp. 200-210; 
Yang, Y.Z., Cavin, R., Ong, J.L., Protein adsorption on titanium surfaces and their effect on osteoblast attachment (2003) J Biomed Mater Res A, 67, pp. 344-349; 
MacDonald, D.E., Rapuano, B.E., Deo, N., Stranick, M., Somasundaran, P., Boskey, A.L., Thermal and chemical modification of titanium-aluminum-vanadium implant materials: Effects on surface properties, glycoprotein adsorption, and MG63 cell attachment (2004) Biomaterials, 25, pp. 3135-3146; 
Steele, J.G., Johnson, G., McFarland, C., Dalton, B.A., Gengenbach, T.R., Chatelier, R.C., Underwood, P.A., Griesser, H.J., Roles of serum vitronectin and fibronectin in initial attachment of human vein endothelial-cells and dermal fibroblasts on oxygen-containing and nitrogen-containing surfaces made by radiofrequency plasmas (1994) J Biomater Sci Polym Ed, 6, pp. 511-532; 
Keselowsky, B.G., Collard, D.M., Garcia, A.J., Surface chemistry modulates fibronectin conformation and directs integrin binding and specificity to control cell adhesion (2003) J Biomed Mater Res A, 66, pp. 247-259; 
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Webb, K., Hlady, V., Tresco, P.A., Relationships among cell attachment, spreading, cytoskeletal organization, and migration rate for anchorage-dependent cells on model surfaces (2000) J Biomed Mater Res, 49, pp. 362-368; 
Amaral, I.F., Lamghari, M., Sousa, S.R., Sampaio, P., Barbosa, M.A., Rat bone marrow stromal cell osteogenic differentiation and fibronectin adsorption on chitosan membranes: The effect of the degree of acetylation (2005) J Biomed Mater Res A, 75, pp. 387-397; 
Scotchford, C.A., Gilmore, C.P., Cooper, E., Leggett, G.J., Downes, S., Protein adsorption and human osteoblast-like cell attachment and growth on alkylthiol on gold self-assembled monolayers (2002) J Biomed Mater Res, 59, pp. 84-99; 
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Steele, J.G., Johnson, G., Underwood, P.A., Role of serum vitronectin and fibronectin in adhesion of fibroblasts following seeding onto tissue-culture polystyrene (1992) J Biomed Mater Res, 26, pp. 861-884
},
	month = {2008///},
	pages = {281 - 290},
	abstract = {This study aims at assessing the influence of the competitive preadsorption of human serum albumin (HSA) and human plasma fibronectin (FN) from binary solutions and 10\% plasma on MC3T3-E1 osteoblast adhesion and morphology on two types of TiO                        2 substrates. One was commercially pure titanium with a titanium oxide layer formed in an H
                        2O
                        2 solution and the other TiO
                        2 sputtered on Si (Sousa et al., Langmuir 2004; 20:9745-9754.). The strategy applied in the present investigation was to compare osteoblast adhesion to surfaces preadsorbed with HSA, FN, HSA/FN = 1, HSA/FN = 200, and 10\% plasma. The adsorption of proteins was evaluated measuring the amount and the effectiveness of binding with radiolabeled proteins, 
                        125I-FN and 
                        125I-HSA. Our results indicated that MC3T3-E1 osteoblast adhesion correlates well with the amounts of FN and HSA adsorbed on TiO
                        2 surfaces. Also, we found that fewer osteoblasts adhered to both substrates preadsorbed with HSA, HSA/FN = 200, and 10\% plasma, after 4 and 24 h, than to the surfaces preadsorbed with FN and HSA/FN = 1. For the latter, FN was able to compensate the inhibitory effect of HSA on osteoblast adhesion. Therefore, the presence of lower amounts of coadsorbed albumin may improve presentation of FN in a more integrin-recognized conformation, suggesting that some degree of molecular packing prevents loss of integrin-binding activity. FN reversibility does not seem to be dependent on the HSA/FN adsorption mass ratio in solution, suggesting that FN competitively adsorbs to TiO
                        2 in a favorable conformation and does not suffers subsequent conformational changes allowing exchange with other FN molecules in solution. {\textcopyright} 2007 Wiley Periodicals, Inc.
},
	keywords = {2, 3T3 Cells, Adsorption, Albumins, animal cell, Animals, article, binding kinetics, cell adhesion, Coloring Agents, Competitive protein adsorption, controlled study, cytoskeleton, Data Interpretation, Statistical, Fibronectin, Fibronectins, FN, HSA, human serum albumin, hydrogen peroxide, iodine 125, Iodine Radioisotopes, isotope labeling, Mice, Microscopy, Confocal, mouse, neutral red, nonhuman, osteoblast, Osteoblast adhesion, Osteoblasts, Protein radiolabeling, Proteins, Radiology, Solutions, Sterilization, surface property, TiO, Titanium, Titanium dioxide},
	isbn = {15493296 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-38049002555\&partnerID=40\&md5=dd5a4dee91d3fe1e9eb9a6ba31553c0a},
	author = {Sousa, S.R. and Lamghari, M. and Sampaio, P. and Moradas-Ferreira, P. and Barbosa, M.A.}
}
@article {2351,
	title = {Surface characterization and cell response of a PLA/CaP glass biodegradable composite material},
	journal = {Journal of Biomedical Materials Research - Part AJ. Biomed. Mater. Res. Part A},
	volume = {85},
	year = {2008},
	note = {Cited By (since 1996): 5Export Date: 21 November 2012Source: ScopusCODEN: JBMRCdoi: 10.1002/jbm.a.31546PubMed ID: 17729262Language of Original Document: EnglishCorrespondence Address: Ginebra, M. P.; Department of Materials Science, Institute of Bioengineering of Catalonia (IBEC), Technical University of Catalonia, Avda Diagonal 647, 08028-Barcelona, Spain; email: maria.pau.ginebra@upc.eduChemicals/CAS: 3 (4,5 dimethyl 2 thiazolyl) 2,5 diphenyltetrazolium bromide, 298-93-1; calcium phosphate, 10103-46-5, 13767-12-9, 14358-97-5, 7758-87-4; osteocalcin, 136461-80-8; polylactic acid, 26100-51-6; Alkaline Phosphatase, EC 3.1.3.1; Bone Substitutes; calcium phosphate, 10103-46-5; Calcium Phosphates; Lactic Acid, 50-21-5; Osteocalcin, 104982-03-8; poly(lactic acid), 26100-51-6; PolymersReferences: Barrows, T., Degradable implants materials: A review of synthetic absorbable polymers and their applications (1986) Clin Mater, 1, pp. 233-267;Ciccone, W., Motz, C., Bentley, C., Tasto, J., Bioabsorbable implants in orthopaedics: New developments and clinical applications (2001) J Am Acad Orthop Surg, 9, pp. 280-288; 
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},
	month = {2008///},
	pages = {477 - 486},
	abstract = {Bioabsorbable materials are of great interest for bone regeneration applications, since they are able to degrade gradually as new tissue is formed. In this work, a fully biodegradable composite material containing polylactic acid (PLA) and calcium phosphate (CaP) soluble glass particles has been characterized in terms of surface properties and cell response. Cell cultures were performed in direct contact with the materials and also with their extracts, and were evaluated using the MTT assay, alkaline phosphatase activity, and osteocalcin measurements. The CaP glass and PLA were used as reference materials. No significant differences were observed in cell proliferation with the extracts containing the degradation by-products of the three materials studied. A relation between the materials wettability and the material-cell interactions at the initial stages of contact was observed. The most hydrophilic material (CaP glass) presented the highest cell adhesion values as well as an earlier differentiation, followed by the PLA/glass material. The incorporation of glass particles into the PLA matrix increased surface roughness. SEM images showed that the heterogeneity of the composite material induced morphological changes in the cells cytoskeleton. {\textcopyright} 2007 Wiley Periodicals, Inc.},
	keywords = {3 (4,5 dimethyl 2 thiazolyl) 2,5 diphenyltetrazolium bromide, Absorbable Implants, alkaline phosphatase, article, Biodegradable composite materials, biodegradable implant, Biodegradation, Bone, Bone Regeneration, Bone Substitutes, calcium phosphate, Calcium phosphates, cell adhesion, Cell culture, cell function, cell interaction, Cell Line, cell proliferation, Cell response, Composite materials, cytoskeleton, glass, human, human cell, Humans, hydrophilicity, hydrophobicity, In vitro test, Lactic Acid, materials testing, Osteoblasts, osteocalcin, polylactic acid, Polymers, scanning electron microscope, Surface analysis, Surface Properties, wettability},
	isbn = {15493296 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-42149187233\&partnerID=40\&md5=8942b2e00b94ff0f723261e1893d04b5},
	author = {Navarro, M. and Engel, E. and Planell, J.A. and Amaral, I. and Barbosa, M. and Ginebra, M.P.}
}
@article {2381,
	title = {Attachment, spreading and short-term proliferation of human osteoblastic cells cultured on chitosan films with different degrees of acetylation},
	journal = {Journal of Biomaterials Science, Polymer EditionJ. Biomater. Sci. Polym. Ed.},
	volume = {18},
	year = {2007},
	note = {Cited By (since 1996): 22Export Date: 21 November 2012Source: ScopusCODEN: JBSEEdoi: 10.1163/156856207780425068Language of Original Document: EnglishCorrespondence Address: Amaral, I.F.; INEB - Instituto de Engenharia Biom{\'e}dica, Laborat{\'o}rio de Biomateriais, Rua do Campo Alegre, 823, 4150-180 Porto, Portugal; email: iamaral@ineb.up.ptChemicals/CAS: chitosan, 9012-76-4; Biocompatible Materials; Chitosan, 9012-76-4References: Vacanti, C.A., Bonassar, L.J., Vacanti, J.P., (2000) Principles of Tissue Engineering, p. 671. , R. P. Lanza, R. Langer and J. Vacanti Eds, p, Academic Press, San Diego, CA;Bruder, S.P., Caplan, A.I., (2000) Principles of Tissue Engineering, p. 683. , R. P. Lanza, R. Langer and J. Vacanti Eds, p, Academic Press, San Diego, CA; 
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},
	month = {2007///},
	pages = {469 - 485},
	abstract = {Chitosan (Ch) is being actively investigated as a non-protein template for the growth of an increasing number of anchorage-dependent cells, including chondrocytes and bone cells. In the present work, Ch films with degrees of N-acetylation (DAs) in the range of 4 to 49\% were evaluated with respect to the attachment, spreading and short-term proliferation of osteoblasts, using human osteoblastic MG-63 cells. The films were characterized in terms of surface morphology and surface charge by atomic force microscopy and streaming potential measurements, respectively. Cell attachment was assessed after 3 and 24 h of cell culture. After 24 h of incubation, cell attachment was found to be dependent on the DA, lower DAs favouring cell adhesion. With time, cell spreading and cytoskeleton organization were only attained for DAs <= 13\%. Regarding cell proliferation, cells grown on films with the lowest DA (4\%) revealed a higher specific growth rate as compared to those grown on films with higher DAs. Films with a DA of 49\% failed to sustain cell proliferation. In addition, a longer lag-phase was observed on Ch, as compared to TCPS, in accordance to an observed delay of cell spreading. The present findings revealed that differences in the DA as small as 9\% may be critical in terms of the osteoblast response to two-dimensional Ch-based matrices. {\textcopyright} 2007 VSP.},
	keywords = {Acetylation, AFM, article, Atomic force microscopy, Biocompatible Materials, biofilm, Biofilms, biomaterial, bone cell, cartilage cell, cell adhesion, cell anchorage, Cell culture, cell growth, Cell Line, Tumor, cell proliferation, Cell Shape, cell spreading, cell survival, Chemical structure, chemistry, Chitin, chitosan, comparative study, controlled study, cytoskeleton, Degree of acetylation, drug effect, Growth kinetics, human, human cell, Humans, incubation time, metabolism, Microscopy, Atomic Force, osteoblast, Osteoblast-like cells, Osteoblasts, Pathology, priority journal, Surface charge, Surface Properties, surface property, Surface treatment, tumor cell line, Zeta potential},
	isbn = {09205063 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-34347375992\&partnerID=40\&md5=437b9ed270e859425b76aa3655c611be},
	author = {Amaral, I.F. and Cordeiro, A.L. and Sampaio, P. and Barbosa, M.A.}
}
@conference {2374,
	title = {Automatic vertebra detection in x-ray images},
	booktitle = {Proceedings of the International Symposium CompIMAGE 2006 - Computational Modelling of Objects Represented in Images: Fundamentals, Methods and ApplicationsProc. Int. Symp. CompIMAGE - Comput. Model. Objects Represent. Images: Fundam., Methods Appl.},
	series = {International Symposium CompIMAGE 2006 - Computational Modelling of Objects Represented in Images: Fundamentals, Methods and Applications},
	year = {2007},
	note = {Conference code: 75470Export Date: 21 November 2012Source: ScopusLanguage of Original Document: EnglishCorrespondence Address: Moura, D. C.; INEB - Instituto de Engenharia Biom{\'e}dica, Laborat{\'o}rio de Sinal e Imagem, Porto, PortugalReferences: Benameur, S., Mignotte, M., Labelle, H., Guise, J.A.D., A hierarchical statistical modeling approach for the unsupervised 3-d biplanar reconstruction of the scoliotic spine (2005) IEEE Trans Biomed Eng, 52 (12), pp. 2041-2057. , December;de Bruijne, M. and M. Nielsen (2004a). Image segmentation by shape particle filtering, Chapter III, pp. 722-725. International Conference on Pattern Recognition. IEEE Computer Society Pressde Bruijne, M., Nielsen, M., Shape particle filtering for image segmentation (2004) Lecture Notes in Computer Science, 3216, pp. 168-175. , of, Chapter I, pp, Springer; 
Ghebreab, S., Smeulders, A., Combining strings and necklaces for interactive threedimensional segmentation of spinal images using an integral deformable spine model (2004) IEEE Trans Biomed Eng, 51 (10), pp. 1821-1829. , October; 
Pomero, V., Mitton, D., Laporte, S., de Guise b, J.A., Skalli, W., Fast accurate stereoradiographic 3d-reconstruction of the spine using a combined geometric and statistic model (2004) Clinical Biomechanics, 19 (3), pp. 240-247. , March; 
Scott, I., Cootes, T., Taylor, C., Shape particle filtering for image segmentation (2003) Lecture Notes in Computer Science, 2732, pp. 258-269. , of, Springer; 
Smyth, P., Taylor, C., Adams, J., Vertebral shape: Automatic measurement with active shape models (1999) Radiology, 211 (2), pp. 571-578; 
Zamora, G., Sari-Sarrafa, H., Long, R., Hierarchical segmentation of vertebrae from x-ray images (2003) Med Imaging: Image Process, 5032, pp. 631-642. , SPIE Press
},
	month = {2007///},
	pages = {307 - 312},
	address = {Coimbra},
	abstract = {In this paper we will describe our experiments with x-ray image analysis for vertebra detection in juvenile/adolescent patients with idiopathic scoliotic spines. We will focus on detecting vertebrae location in a anterior-posterior x-ray image in a fully automatic way. For accomplishing this, we propose a set of techniques for (i) isolating the spine by removing other bone structures (e.g. ribs), (ii) detecting vertebrae location along the spine using an hierarchical and progressive threshold analysis, and (iii) detecting vertebrae lateral boundaries. {\textcopyright} 2007 Taylor \& Francis Group.},
	keywords = {Anterior posteriors, Bone structures, Image analysis, Lateral boundaries, Mammals, Threshold analysis, X ray analysis, X ray apparatus, X-ray images},
	isbn = {9780415433495 (ISBN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-60749117244\&partnerID=40\&md5=94ba6d9db7e15f538851da273b28d8aa},
	author = {Moura, D.C. and Correia, M.V. and Barbosa, J.G. and Reis, A.M. and Laranjeira, M. and Gomes, E.}
}
@book {2385,
	title = {Characterization of hydroxyapatite sputtered films doped with titanium},
	series = {Key Engineering MaterialsKey Eng Mat},
	volume = {330-332 I},
	year = {2007},
	note = {Cited By (since 1996): 1Export Date: 21 November 2012Source: ScopusCODEN: KEMAELanguage of Original Document: EnglishCorrespondence Address: Ribeiro, A.R.; INEB-Instituto de Engenharia Biom{\'e}dica, Laborat{\'o}rio de Biomateriais, Universidade do Porto, Rua Campo Alegre, 823, 4150-180 Porto, Portugal; email: arr@ineb.up.ptReferences: Bhat, (2002) Biomaterials, , Narosa Publishing House/Kluwer Academic Publishers, India;Feddes B, Vredenberg AM. Wolke JGC, Jansen JA.: Surface and Coatings Technology 185 (2-3) (2004), p. 346Gisep, A., (2002) Injury-International Journal of the Care of the Injured, 33 (SUPPL. 2), p. 88; 
Ooms, E.M., Wolke, J.G.C., van der Waerden, J.P.C.M., (2002) Journal of Biomedical Materials Research, 61 (1), p. 9; 
Barrias, C.C., Ribeiro, C.C., Rodriguez, D., S{\'a} Miranda, C., Barbosa, M.A., (2005) Key Engineering Materials, 284-286, p. 689; 
Ribeiro, C.C., Barrias, C.C., Barbosa, M.A., (2004) Biomaterials, 25, p. 4363; 
van Dijk, K., Schaeken, H.G., Mar{\'e}e, C.H.M., Verhoeven, J., Wolke, J.C.G., Habraken, F.H.P.M., Jansen, J.A., (1995) Surface and Coatings Technology, 76-77, p. 206; 
Hulshoff, J.E.G., van Dijk, K., de Ruijter, J.E., (1998) Journal of Biomedical Materials Research, 40 (3), p. 464; 
Yang, Y.Z., Kim, K.H., Ong, J.L., (2005) Biomaterials, 26 (3), p. 327; 
Ong, J.L., Lucas, L.C., (1998) Biomaterials, 19 (4-5), p. 455; 
Thian, E.S., Huang, J., Best, S.M., Barber, Z.H., Bonfield, W., (2005) Biomaterials, 26, p. 2947
},
	month = {2007///},
	pages = {649 - 652},
	abstract = {In the present work, thin films of hydroxyapatite (HAp), titanium, and hydroxyapatite doped with different titanium concentrations were obtained by sputtering and characterized using several analytical techniques. These films are intended to be used as model surfaces on protein adsorption studies in order to better understand the role of titanium ions in biological processes.},
	keywords = {Adsorption, Biofilms, Doping (additives), hydroxyapatite, Hydroxyapatite sputtered films, Model surfaces, Proteins, Sputtering, Titanium, Titanium ions},
	isbn = {10139826 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-33846300257\&partnerID=40\&md5=7946215d8f37e0e216b57336b89f0f02},
	author = {Ribeiro, A.R. and Piedade, A.P. and Ribeiro, C.C. and Vieira, M.T. and Barbosa, M.A.}
}
@article {2380,
	title = {Epidemiology of femur fractures in Portugal},
	journal = {Epidemiologia das fracturas do f{\'e}mur em Portugal: Fracturas do colo do f{\'e}mur versus fracturas de outras localiza{\c c}{\~o}es n{\~a}o especificadas do f{\'e}murArquivos de MedicinaArq. Med.},
	volume = {21},
	year = {2007},
	note = {Export Date: 21 November 2012Source: ScopusCODEN: ARQMELanguage of Original Document: PortugueseCorrespondence Address: Alves, S.F.; Laborat{\'o}rio de Biomateriais, Instituto de Engenharia Biom{\'e}dica (INEB), Rua do Campo Alegre, 823, 4150-180 Porto, Portugal; email: smfalves@gmail.comReferences: Aroso-Dias, A., Epidemiologia da Osteoporose em Portugal: An{\'a}lise comparative com outros pa{\'\i}ses. (2000) Acta Reumatol Port, 97, pp. 21-31;De Laet, C.E.D.H., Pols, H.A.P., Fractures in the elderly: Epidemiology and demography (2000) Baillieres Clin Endocrinol Metab, 14, pp. 171-179; 
Eisman, J., The epidemiology and pathogenesis of osteoporosis (1997) Baillieres Clin Endocrinol Metab, 11, pp. 23-62. , Center J; 
Dennison, E., Cooper, C., Epidemiology of Osteoporotic Fractures (2000) Horm Res, 54, pp. 58-63; 
Amin, S., Felson, D.T., Osteoporosis in Men (2001) Rheum Dis Clin North Am, 27, pp. 19-47; 
Jordan, K.M., Cooper, C., Epidemiology of osteoporosis (2002) Best Pract Res Clin Rheumatol, 16, pp. 795-806; 
Kanis, J.A., Diagnosis of osteoporosis and assessment of fracture risk (2002) Lancet North Am Ed, 59, pp. 1929-1936; 
Cooper, C., Melton III, L.J., Magnitude and Impact of Osteoporosis and Fractures (1996) Osteoporosis, pp. 419-434. , Marcus R, Feldman D, Kelsey J, editors, Academic Press, San Diego;; 
Trombetti, A., Herrmann, F., Hoffmeyer, P., Schurch, M.A., Bonjour, J.P., Rizzoli, R., Survival and potential years of life lost after hip fracture in men and age-matched women (2002) Osteoporos Int, 13, pp. 731-737; 
O{\textquoteright}Neill, T.W., Roy, D.K., The epidemiology and scale of the problem (2003) Hosp Med, 64, pp. 517-520; 
Cummings, S.R., Melton III, L.J., Epidemiology and outcomes of osteoporotic fractures (2002) Lancet, 359, pp. 1761-1767; 
www.ine.pt, Instituto Nacional de EstatisticaWalker-Bone, K., Dennison, E., Cooper, C., Epidemiology of Osteoporosis (2001) Rheum Dis Clin North Am, 27, pp. 1-18; 
Gold, D.T., The Nonskeletal Consequences of Osteoporotic Fractures - Psycologic and Social Outcomes (2001) Rheum Dis Clin North Am, 27, pp. 255-262
},
	month = {2007///},
	pages = {77 - 81+127},
	abstract = {Fractures related to osteoporosis have been increasing in many countries. Femoral neck fractures have been widely studied, however little is known about other femur fractures and its relationship with osteoporosis. The main objective of this study is the comparison between the incidence of neck fractures attributed to osteoporosis with the ones that occurs in other places of femur other than the neck, in the same conditions. It was used a national database, under the regulation of a governmental institute, with registers from 2000 to 2002. From the total number of femural fractures the authors selected the registers corresponding to individuals with more than fifty years of age and due to low impact, it were analysed separately the femoral neck fractures (International Classification of Diseases codes, 9                        th Revision, Clinical Modification, ICD9-CM codes 820 and derivates) from the fractures that occurred in other locations in the femur (ICD9-CM codes 821 and derivates). Case fatality rates and the incidence rates were calculated for that period of time, and an analysis of the variables age, days and costs of hospital admission as well as of the variable destination after discharge. Only 7.6\% of the femural fractures were coded as 821.x, all the others were coded as 820.x. In both groups the fractures were more frequent in women (above 75\%) and showed an exponential increase with age. The costs were higher in the 820.x fractures which also presented higher case fatality rates. {\textcopyright}ArquiMed, 2007.
},
	keywords = {adult, aged, article, Female, femur, femur fracture, fracture, hip fracture, human, incidence, Low impact, male, Osteoporosis, outcome assessment, Portugal, risk assessment, survival},
	isbn = {08713413 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-38949187951\&partnerID=40\&md5=bb28b6850d1e7d2f67a7f0c9be4c8ff9},
	author = {Alves, S.F. and Pina, M.D.F. and Barbosa, M.}
}
@conference {2371,
	title = {A Gait Analysis Laboratory for rehabilitation of patients with musculoskeletal impairments},
	booktitle = {Proceedings of the International Symposium CompIMAGE 2006 - Computational Modelling of Objects Represented in Images: Fundamentals, Methods and ApplicationsProc. Int. Symp. CompIMAGE - Comput. Model. Objects Represent. Images: Fundam., Methods Appl.},
	series = {International Symposium CompIMAGE 2006 - Computational Modelling of Objects Represented in Images: Fundamentals, Methods and Applications},
	year = {2007},
	note = {Conference code: 75470Export Date: 21 November 2012Source: ScopusLanguage of Original Document: EnglishCorrespondence Address: Sousa, D. S. S.; INEGI, Instituto de Engenharia Mecǎnica e Gest{\~a}o Industrial, Porto, PortugalReferences: Baker, R., Gait analysis methods in rehabilitation (2006) Journal of Neuro Engineering and Rehabilitation, 3 (1), p. 4;Cappozzo, A., Delia Croce, U., Human movement analysis using stereophotogrammetry. Part I: Theoretical background (2005) Gait \& Posture, 21, pp. 186-196; 
Chau, T., A review of analytical techniques for gait data. Part 1: Fuzzy, statistical and fractal methods (2001) Gait \& Posture, 13 (1), pp. 49-66; 
Davis, R.B., Reflections on clinical gait analysis (1997) Journal of Electromyography and Kinesiology, 7 (4), pp. 251-257; 
Davis III, R.B., Clinical gait analysis (1988) Engineering in Medicine and Biology Magazine, IEEE, 7 (3), pp. 35-40; 
Figueroa, P.J., Leite, N.J., A flexible software for tracking of markers used in human motion analysis (2003) Computer Methods and Programs in Biomedicine, 72, pp. 155-165; 
Gavrila, D., The visual analysis of human movement: A survey (1999) Computer Vision and Image Understanding, 73 (1), pp. 82-98; 
Merletti, R., Parker, P., (2004) Electromyography: Physiology, engineering and noninvasive applications, , Wiley-IEEE Press; 
(1978) NASA Reference Publication, , NASA, Springfield: NASA; 
Orlin, M., McPoil, T., Plantar pressure assessment (2000) Physical therapy, 80 (4), pp. 399-409; 
Perry, J., The contribution of dynamic electromyography to gait analysis (1998) Monograph 002: Gait analysis in the science of rehabilitation. 1998, , J. DeLisa ed, Washington, DC; 
Pinho, R., Tavares, J., A Movement Tracking Management Model with Kalman Filtering, Global Optimization Techniques and Mahalanobis Distance (2005) ICCMSE 2005 - International Conference of Computational Methods in Sciences and Engineering; Loutraki, 21-26 October 2005, , Korinthos: Greece; 
Pinho, R., Tavares, J., Human Movement Tracking and Analysis with Kalman Filtering and Global Optimization Techniques (2005) ICCB2005 - II International Conference on Computational Bioengineering; Instituto Superior T{\'e}cnico, Lisboa, 14-16 September 2005, , Lisboa: Portugal; 
Rosenbaum, D., Becker, H., Plantar pressure distribution measurements. Technical background and clinical applications (1997) Foot and Ankle Surgery, 3 (1), pp. 1-14; 
Roy, K., Force, pressure and motion measurements in the foot: Current concepts (1988) Clinics in Podiatric Medicine and Surgery, 5, pp. 491-508; 
Schmalz, T., Blumentrit, S., Energy expenditure and biomechanical characteristics of lower limb amputee gait: The influence of prosthetic alignment and different prosthetic components (2002) Gait \& Posture, 16, pp. 255-263; 
Shabana, A., (2001) Computational Dynamics, , NY: John Wiley; 
Sisto, S. 1998. An overview of the value of information resulting from instrumented gait analysis for the physical therapist. In J. DeLisa (ed.) Monograph 002: Gait analysis in the science of rehabilitation. 1998. Washington, DC. Sutherland, D. 2001. The evolution of clinical gait analysis part 1: kinesiological EMG. Gait \& Posture 14(1): 61-70Sutherland, D., The evolution of clinical gait analysis: Part II Kinematics (2002) Gait \& Posture, 16 (2), pp. 159-179; 
Tavares, J., Bastos, L., Improvement of Modal Matching Image Objects in Dynamic Pedobarography using Optimization Techniques (2005) Electronic Letters on Computer Vision and Image Analysis, special issue on Articuled Motion \& Deformable Objects, 5, pp. 1-20; 
Tavares, J., Barbosa, J., Matching Image Objects in Dynamic Pedobarography (2000) RecPad 2000 - 11th Portuguese Conference on Pattern Recognition; Porto, 11-12 Maio 2000, , Porto, Portugal; 
Urry, S., Plantar pressure-measurement sensors (1999) Measurement Science and Technology, 10, pp. 16-32; 
Whittle, M., Clinical gait analysis: A review (1996) Human Movement Science, 15, pp. 369-387; 
Whittle, M., (2003) Gait analysis an introduction, , Oxford, Boston: Butterworth-Heinemann; 
Winter, D., (2005) Biomechanics and motor control of human movement, , Hoboken: John Wiley \& Sons
},
	month = {2007///},
	pages = {417 - 422},
	address = {Coimbra},
	abstract = {This paper describes the technology (software \& hardware) used in the Gait Analysis Laboratory of CRPG - Centro de Reabilita{\c c}{\~a}o Projissional de Gaia. This laboratory is mainly intended to support CRPG with quantitative data for clinical rehabilitation of patients with musculoskeletal pathologies, namely in the lower limbs. Usually, for the gait analysis is considered data obtained from several acquisition sensors, such as: image cameras, electromyographic devices, pressure devices and force plates. This paper also presents briefly how quantitative motion analysis can be used for a clinical point of view and it presents the influence of image algorithms in gait rehabilitation. {\textcopyright} 2007 Taylor \& Francis Group.},
	keywords = {Acquisition sensors, Electromyographic, Force plates, Gait analysis, Gait rehabilitations, Image algorithms, Lower limbs, Motion analysis, Patient rehabilitation, Pressure devices, Quantitative datum},
	isbn = {9780415433495 (ISBN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-60749114216\&partnerID=40\&md5=097e0d95d00419c881b3139811e93686},
	author = {Sousa, D.S.S. and Tavares, J.M.R.S. and Correia, M.V. and Barbosa, J.G. and Ch{\~a}, C.V. and Mendes, E.}
}
@article {2375,
	title = {Linear and nonlinear analysis of heart rate patterns associated with fetal behavioral states in the antepartum period},
	journal = {Early Human DevelopmentEarly Hum. Dev.},
	volume = {83},
	year = {2007},
	note = {Cited By (since 1996): 17Export Date: 21 November 2012Source: ScopusCODEN: EHDEDdoi: 10.1016/j.earlhumdev.2006.12.006PubMed ID: 17261357Language of Original Document: EnglishCorrespondence Address: Gon{\c c}alves, H.; Universidade do Porto, Faculdade de Ci{\^e}ncias, Departamento de Matem{\'a}tica Aplicada, Porto, Portugal; email: hernani.goncalves@fc.up.ptReferences: Nijhuis, J.G., Prechtl, H.F., Martin, C.B.J., Bots, R.S., Are there behavioural states in the human fetus? (1982) Early Hum Dev, 6, pp. 177-195;Nijhuis, I., ten Hof, J., Development of fetal heart rate and behavior: indirect measures to assess the fetal nervous system (1999) Eur J Obstet Gynaecol Reprod Biol, 87, pp. 1-2; 
Vindla, S., James, D., Fetal behaviour as a test of fetal wellbeing (1995) Br J Obstet Gynaecol, 102, pp. 597-600; 
Swartjes, J.M., van Geijn, H.P., Mantel, R., van Woerden, E.E., Schoemaker, H.C., Coincidence of behavioural state parameters in the human fetus at three gestational ages (1990) Early Hum Dev, 23, pp. 75-83; 
Ayres-de-Campos, D., Santos, C., Bernardes, J., Prediction of neonatal state by computer analysis of fetal heart rate tracings: the antepartum arm of the SisPorto{\textregistered} multicentre validation study (2005) Eur J Obstet Gynaecol Reprod Biol, 118, pp. 52-60; 
Ayres-de-Campos, D., Bernardes, J., Garrido, A., de S{\'a}, J.M., Pereira-Leite, L., SisPorto 2.0: a program for automated analysis of cardiotocograms (2000) J Matern Fetal Med, 9, pp. 311-318; 
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Gon{\c c}alves, H., Rocha, A.P., Ayres-de-Campos, D., Bernardes, J., Internal versus external intrapartum foetal heart rate monitoring: the effect on linear and nonlinear parameters (2006) Physiol Meas, 27, pp. 307-319; 
Signorini, M.G., Magenes, G., Cerrutti, S., Arduini, D., Linear and nonlinear parameters for the analysis of fetal heart rate signal from cardiotacographic recordings (2003) IEEE Trans Biomed Eng, 50 (3), pp. 365-373; 
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Ten Hof, J., Nijhuis, I.J., Mulder, E.J., Nijhuis, J.G., Narayan, H., Taylor, D.J., Longitudinal study of fetal body movements: nomograms, intrafetal consistency, and relationship with episodes of heart rate patterns A and B (2002) Pediatr Res, 52 (4), pp. 568-575; 
Bernardes, J., Costa-Pereira, A., de Campos, D.A., van Geijn, H.P., Pereira-Leite, L., Evaluation of interobserver agreement of cardiotocograms (1997) Int J Gynaecol Obstet, 57 (1), pp. 33-37; 
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Mantel, R., van Geijn, H.P., Ververs, I.A., Copray, F.J., Automated analysis of near-term antepartum fetal heart rate in relation to fetal behavioral states: the Sonicaid System 8000 (1992) Am J Obstet Gynaecol, 167 (6), pp. 1912-1914; 
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},
	month = {2007///},
	pages = {585 - 591},
	abstract = {Background: Fetal behavioral states are important indicators of fetal physiology and pathology associated to typical fetal heart rate (FHR) patterns. Aim: To provide linear and nonlinear analysis of FHR patterns associated with fetal behavioral states regarding a better understanding of these states and patterns. Study design and subjects: Fifty FHR tracings from normal term pregnancies with a median duration of 40.3~min were acquired with the SisPorto{\textregistered} 2.01 system for computerized analysis of cardiotocograms. Each tracing was divided into consecutive 10-minute segments and each segment was classified by two experts as pattern A, B, C or D. Outcome measures: Linear and nonlinear indices were computed in each segment, namely mean FHR, long-term irregularity index (LTI), very low (VLF), low (LF) and high (HF) frequency spectral indices, approximate entropy (ApEn) and sample entropy (SampEn). Kappa statistic (κ) and proportions of agreement (Pa) were used for assessment of inter-observer agreement. Bootstrap percentile confidence intervals and nonparametric statistical tests were calculated for statistical inference. Results: Overall agreement between experts in pattern classification was good to excellent with values for κ and Pa of 0.74 (95\% CI: 0.64-0.94) and 0.94 (95\% CI: 0.92-0.96), respectively. Most linear domain indices increased significantly with rising fetal activity whereas the opposite occurred with nonlinear indices, except for SampEn(2, 0.1). LF/(MF + HF) ratio also significantly increased with fetal activity, denoting an increased sympatho-vagal balance. Conclusions: Results support the hypothesis that entropy and linear variability indices measure different FHR features. FHR patterns associated with active sleep (B) and active wakefulness (D) evidenced more signs of autonomous nervous system activity, with sympatho-vagal imbalance, and less signs related to complexity or irregularity control systems than patterns associated with calm sleep (A) and calm wakefulness (C). {\textcopyright} 2006 Elsevier Ireland Ltd. All rights reserved.},
	keywords = {adult, article, behavior change, Cardiotocography, Computerized analysis, controlled study, entropy, Female, Fetal behavioral states, Fetal heart rate, Fetal monitoring, fetus, fetus heart rate, fetus monitoring, Heart Rate, Fetal, human, Humans, Image Interpretation, Computer-Assisted, Linear Models, Nonlinear Dynamics, Pregnancy, SisPorto, Spectral analysis, vagus nerve stimulation},
	isbn = {03783782 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-34249751815\&partnerID=40\&md5=3a787d5accf317ad2b020e59ddb6a465},
	author = {Gon{\c c}alves, H. and Bernardes, J. and Paula Rocha, A. and Ayres-de-Campos, D.}
}
@article {2386,
	title = {A novel dry active electrode for EEG recording},
	journal = {IEEE Transactions on Biomedical EngineeringIEEE Trans. Biomed. Eng.},
	volume = {54},
	year = {2007},
	note = {Cited By (since 1996): 24Export Date: 21 November 2012Source: ScopusArt. No.: 23CODEN: IEBEAdoi: 10.1109/TBME.2006.884649PubMed ID: 17260869Language of Original Document: EnglishCorrespondence Address: Fonseca, C.; INEB Instituto de Engenharia Biom{\'e}dica, Laborat{\'o}rio de Biomateriais, Universidade Do Porto, Rua do Campo Alegre, 823, 4150-180 Porto, Portugal; email: cfonseca@ibmc.up.ptChemicals/CAS: Biocompatible Materials; Titanium, 7440-32-6; titanium dioxide, 13463-67-7References: Portnoy, W., David, R., Akers, L., Insulated ECG electrodes (1974) Biomedical Electrode Technology, , H. A. Miller and D. C. Harrison, Eds. New York: Academic;Nishimura, S., Tomita, Y., Horiuchi, T., Clinical application of an active electrode using an operational amplifier (1992) IEEE Trans. Biomed. Eng, 39 (10), pp. 1090-1099. , Oct; 
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Ferree, T., Luu, P., Russell, G., Tucker, D., Scalp electrode impedance, infection risk and EEG data quality (2001) Clin. Neurophysiol, 112 (3), pp. 536-544
},
	month = {2007///},
	pages = {162 - 165},
	abstract = {The design and testing of a "dry" active electrode for electroencephalographic recording is described. A comparative study between the EEG signals recorded in human volunteers simultaneously with the classical Ag-AgCl and "dry" active electrodes was carried out and the reported preliminary results are consistent with a better performance of these devices over the conventional Ag-AgCl electrodes. {\textcopyright} 2007 IEEE.},
	keywords = {article, Biocompatible Materials, Bioelectric phenomena, Bioelectric signal recording, bioenergy, biomedical electrodes, Biomedical engineering, Data recording, Dry electrodes, Electric Impedance, Electrochemical electrodes, electrode, Electrodes, electroencephalogram, Electroencephalographic recording, electroencephalography, Equipment Design, Equipment Failure Analysis, Feasibility Studies, Pilot Projects, signal transduction, Silver compounds, Titanium},
	isbn = {00189294 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-33846389173\&partnerID=40\&md5=0273ef7699807f6e20f95dd6bacb3c9b},
	author = {Fonseca, C. and Silva Cunha, J.P. and Martins, R.E. and Ferreira, V.M. and Marques De S{\'a}, J.P. and Barbosa, M.A. and Martins Da Silva, A.}
}
@article {2376,
	title = {Upregulation of bone cell differentiation through immobilization within a synthetic extracellular matrix},
	journal = {BiomaterialsBiomaterials},
	volume = {28},
	year = {2007},
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},
	month = {2007///},
	pages = {3644 - 3655},
	abstract = {There is a need for new therapeutic strategies to treat bone defects caused by trauma, disease or tissue loss. Injectable systems for cell transplantation have the advantage of allowing the use of minimally invasive surgical procedures, and thus for less discomfort to patients. In the present study, it is hypothesized that Arg-Gly-Asp (RGD)-coupled in a binary (low and high molecular weight) injectable alginate composition is able to influence bone cell differentiation in a three-dimensional (3D) structure. Viability, metabolic activity, cytoskeleton organization, ultrastructure and differentiation (alkaline phosphatase (ALP), von Kossa, alizarin red stainings and osteocalcin quantification) of immobilized cells were assessed. Cells within RGD-modified alginate microspheres were able to establish more interactions with the synthetic extracellular matrix as visualized by confocal laser scanning microscope and transmission electron microscopy imaging, and presented a much higher level of differentiation (more intense ALP and mineralization stainings and higher levels of osteocalcin secretion) when compared to cells immobilized within unmodified alginate microspheres. These findings demonstrate that peptides covalently coupled to alginate were efficient in influencing cell behavior within this 3D system, and may provide adequate preparation of osteoblasts for cell transplantation. {\textcopyright} 2007 Elsevier Ltd. All rights reserved.},
	keywords = {3T3 Cells, Alginate, Alginates, alginic acid, alkaline phosphatase, animal cell, Animals, arginylglycylaspartic acid, article, Bone, bone cell, Bone Regeneration, calvaria, cell adhesion, cell differentiation, Cell encapsulation, Cell immobilization, cell metabolism, cell proliferation, cell survival, cell ultrastructure, cell viability, confocal laser microscopy, controlled study, cytology, cytoskeleton, DNA, DNA content, ECM (extracellular matrix), enzyme activity, extracellular matrix, Glucuronic Acid, Hexuronic Acids, hydrogel, immobilized cell, metabolism, Mice, Microscopy, Confocal, Microscopy, Electron, Transmission, microsphere, Microspheres, nonhuman, Oligopeptides, osteoblast, Osteoblasts, osteocalcin, Patient treatment, priority journal, rat, RGD peptide, structure analysis, three dimensional imaging, Tissue engineering, transmission electron microscopy, Transplantation (surgical)},
	isbn = {01429612 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-34249870130\&partnerID=40\&md5=4476a4b1ee80320328c1bf37054037bb},
	author = {Evangelista, M.B. and Hsiong, S.X. and Fernandes, R. and Sampaio, P. and Kong, H.-J. and Barrias, C.C. and Salema, R. and Barbosa, M.A. and Mooney, D.J. and Granja, P.L.}
}
@article {2403,
	title = {Absorption and emission properties of Ho                    3+ doped lead-zinc-borate glasses
},
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},
	month = {2006///},
	pages = {318 - 325},
	abstract = {This paper reports on the affect of lead content on the absorption and emission spectra of the Ho                        3+ ion doped lead-zinc-borate glasses in the composition (mol\%) of (20 - x)PbO-20ZnO-(59 + x)B
                        2O
                        3-1.0Ho
                        2O
                        3 where x = 0, 5,10,15 of PbO content with λ
                        exc = 405 nm. The experimental absorption band energies have satisfactorily been correlated with the theoretical results with an r.m.s deviation of zero with the following correction factors obtained by a least square fit analysis: ΔE
                        1 = 348.495936 cm
},
	keywords = {Band energies, Doping (additives), Energy gap, glass, Glasses, Holmium, Holmium glasses, Light absorption, Luminescence, Luminescences, Luminescent transitions, Optical properties, Stimulated emission},
	isbn = {00406090 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-33750022661\&partnerID=40\&md5=e0d07ec7c39eb6526a2fb633e9e37321},
	author = {Sooraj Hussain, N. and Ali, N. and Dias, A.G. and Lopes, M.A. and Santos, J.D. and Buddhudu, S.}
}
@article {2406,
	title = {Adsorption of albumin on prosthetic materials: Implication for tribological behavior},
	journal = {Journal of Biomedical Materials Research - Part AJ. Biomed. Mater. Res. Part A},
	volume = {78},
	year = {2006},
	note = {Cited By (since 1996): 25Export Date: 21 November 2012Source: ScopusCODEN: JBMRCdoi: 10.1002/jbm.a.30754PubMed ID: 16739106Language of Original Document: EnglishCorrespondence Address: Serro, A.P.; Centro de Qu{\'\i}mica Estrutural, Instituto Superior T{\'e}cnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal; email: anapaula.serro@ist.utl.ptChemicals/CAS: aluminum oxide, 1302-74-5, 1318-23-6, 1344-28-1, 14762-49-3; iodine 125, 14158-31-7, 22822-81-7; molybdenum, 7439-98-7; protein, 67254-75-5; stainless steel, 12597-68-1; Albumins; Biocompatible MaterialsTradenames: CHIRULEN, Poly Hi Solidur, GermanyManufacturers: Maret, Switzerland; MediMet, Germany; Poly Hi Solidur, GermanyReferences: Widmer, M.R., Heuberger, M., V{\"o}r{\"o}s, J., Spencer, N.D., Influence of polymer surface chemistry on frictional properties under protein-lubrication conditions: Implications for hip-implant design (2001) Tribol Lett, 10, pp. 111-116;Saikko, V., Effect of lubricant protein concentration on the wear of ultrahigh molecular weight polyethylene sliding against a CoCr counterface (2003) Trans ASME, 125, pp. 638-642; 
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Kitano, T., Ateshian, G.A., Mow, V.C., Kadoya, Y., Yamano, Y., Constituents and pH changes in protein rich hyaluronan solution affect the biotribological properties of artificial cartilage (2001) J Biomech, 34, pp. 1031-1037; 
Gispert, M.P., Serro, A.P., Cola{\c c}o, R., Saramago, B., Friction and wear mechanisms in hip prosthesis: Comparison of joint materials behaviour in several lubricants (2006) Wear, 260, pp. 149-158; 
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},
	month = {2006///},
	pages = {581 - 589},
	abstract = {The orthopedic prosthesis used to substitute damaged natural joints are lubricated by a pseudosynovial fluid that contains biological macromolecules with potential boundary lubrication properties. Proteins are some of those macromolecules whose role in the lubrication process is not yet completely understood. In a previous work, we investigated the influence of the presence of albumin, the major synovial protein, upon the tribological behavior of three of the most used pairs of artificial joint materials: ultra high molecular weight polyethylene (UHMWPE) against counterfaces of alumina, CoCrMo alloy, and 316L stainless steel. Albumin was found to cause a significant decrease in the friction coefficient when the counterfaces were metallic because transfer of UHMWPE was avoided, but this effect was much weaker in the case of alumina. The objective of the present work was to look for an explanation for these differences in tribological behavior in terms of albumin adsorption. With this goal, studies on adsorption of bovine serum albumin (BSA) on the counterface materials, from a biological model fluid (Hanks{\textquoteright} balanced salt solution), were carried out using radiolabeled albumin (                        125I-BSA), X-ray photoelectron spectroscopy, and atomic force microscopy. The conclusion from all techniques is that the driving force for albumin adsorption is higher on the metals than on alumina. These results confirm that the greater the amount of protein adsorbed on the counterface, the more efficient is the protection against the transfer of polymeric film to the counterface. {\textcopyright} 2006 Wiley Periodicals, Inc.
},
	keywords = {Adsorption, Albumin, Albumin adsorption, Albumins, Alumina, aluminum oxide, article, Atomic force microscopy, balanced salt solution, Biocompatible Materials, Body fluids, bovine serum albumin, chromium derivative, Cobalt alloy, Cobalt alloys, cobalt derivative, force, Friction, iodine 125, isotope labeling, joint fracture, Joints (anatomy), lubrication, macromolecule, metal, molecular weight, molybdenum, orthopedic prosthesis, orthopedics, Polyethylenes, polymer, Prostheses and Implants, prosthesis material, Prosthetics, protein, Proteins, Pseudosynovial fluid, Stainless steel, Thermodynamics, Tribology, ultra high molecular weight polyethylene, Ultra high molecular weight polyethylene (UHMWPE), X ray photoelectron spectroscopy},
	isbn = {00219304 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-33747426950\&partnerID=40\&md5=1728518c691365be3d5b3733dec3d60f},
	author = {Serro, A.P. and Gispert, M.P. and Martins, M.C.L. and Brogueira, P. and Cola{\c c}o, R. and Saramago, B.}
}
@article {2402,
	title = {Assessment of Bonelike{\textregistered} graft with a resorbable matrix using an animal model},
	journal = {Thin Solid FilmsThin Solid Films},
	volume = {515},
	year = {2006},
	note = {Cited By (since 1996): 5Export Date: 21 November 2012Source: ScopusCODEN: THSFAdoi: 10.1016/j.tsf.2005.12.153Language of Original Document: EnglishCorrespondence Address: Santos, J.D.; INEB-Instituto de Engenharia Biom{\'e}dica, Laborat{\'o}rio de Biomateriais, Rua Campo Alegre, 823, 4150-180 Porto, Portugal; email: jdsantos@fe.up.ptReferences: Hench, L.L., Wilson, J., (1993) An Introduction to Bioceramics, Singapore, , Scientific W. (Ed);Hench, L.L., (1998) Biomaterials, 19, p. 1419; 
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},
	month = {2006///},
	pages = {362 - 367},
	abstract = {Synthetic bone grafts have been developed to provide an alternative to autografts and allografts. Bonelike{\textregistered} is a patented synthetic osteoconductive bone graft that mimics the mineral composition of natural bone. In the present preliminary animal studies a user-friendly version of synthetic bone graft Bonelike{\textregistered} have been developed by using a resorbable matrix, Floseal{\textregistered}, as a vehicle and raloxifene hydrochloride as a therapeutic molecule, that is known to decrease osteoclast activity and therefore enhanced bone formation. From histological and scanning electron microscopy evaluations, the use of Bonelike{\textregistered} associated with Floseal{\textregistered} and raloxifene hydrochloride showed that new bone was rapidly apposed on implanted granules and also that the presence of the matrix and therapeutic molecule does not alter the proven highly osteoconductivity properties of Bonelike{\textregistered}. Therefore, this association may be one step-forward for the clinical applications of Bonelike{\textregistered} scaffolds since it is much more easy-to-handle when compared to granular materials. {\textcopyright} 2006 Elsevier B.V. All rights reserved.},
	keywords = {animal model, Bone, Bonelike{\textregistered}, FloSeal{\textregistered}, Grafting (chemical), Histological analysis, Mathematical models, Raloxifene hydrochloride, Scanning electron microscopy},
	isbn = {00406090 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-33750074198\&partnerID=40\&md5=f24aac62995c1d96ae0e344ccd428ea5},
	author = {Lobato, J.V. and Hussain, N.S. and Botelho, C.M. and Maur{\'\i}cio, A.C. and Afonso, A. and Ali, N. and Santos, J.D.}
}
@book {2414,
	title = {Calcium phosphate microspheres for localised delivery of a therapeutic enzyme},
	series = {Key Engineering MaterialsKey Eng Mat},
	volume = {309-311 II},
	year = {2006},
	note = {Export Date: 21 November 2012Source: ScopusCODEN: KEMAELanguage of Original Document: EnglishCorrespondence Address: Barrias, C.C.; INEB - Instituto de Engenharia Biom{\'e}dica, Laborat{\'o}rio de Biomateriais, R. Campo Alegre 823, 4150-180 Porto, Portugal; email: ccbarrias@ineb.up.ptReferences: Barrias, C.C., Ribeiro, C.C., Barbosa, M.A., (2004) Key Eng. Mater., 254-256, p. 877;Barrias, C.C., Ribeiro, C.C., Lamghari, M., Miranda, C.S., Barbosa, M.A., (2005) J. Biomed. Mater. Res. A, 72 A, p. 57; 
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},
	month = {2006///},
	pages = {903 - 906},
	abstract = {The ability of calcium titanium phosphate (CTP) and hydroxyapatite (HAp) microspheres to reversibly adsorb the enzyme glucocerebrosidase (GCR) while preserving its biological activity, and efficiently deliver it to Gaucher disease (GD) fibroblasts was investigated. CTP microspheres adsorbed ca. 3.6-fold more GCR than HAp microspheres. The activity of adsorbed GCR was higher than the free enzyme in the case of CTP microspheres and lower when HAp was used. GCR release from both types of microspheres was characterized by the initial elution of a large percentage of enzyme followed by a delayed release that extended for at least 30 days. Released GCR was internalized by GD fibroblasts increasing their intracellular enzymatic activity. In cells treated with the same amount of GCR-loaded CTP microspheres or free-GCR a higher intracellular activity was detected in the former case, suggesting an improved efficacy.},
	keywords = {Adsorption, Biocompatibility, biological activity, Biomaterials, Calcium Compounds, Calcium titanium phosphate, Calcium titanium phosphate (CTP), Cells, Enzyme adsorption, Enzymes, hydroxyapatite, Microspheres},
	isbn = {10139826 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-33645396489\&partnerID=40\&md5=de3cf8530e8c690b254fed782b964340},
	author = {Barrias, C.C. and Ribeiro, C.C. and Martins, M.C.L. and Barbosa, M.A. and Rodrigues, D. and Miranda, M.C.S.}
}
@article {2409,
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},
	month = {2006///},
	pages = {728 - 739},
	abstract = {Grafting of phosphate groups has been investigated as a means to render biomedical polymers able to induce the formation of an apatite layer. In the present investigation, regenerated cellulose hydrogels were surface modified by phosphorylation using a previously reported method. The in vitro biocompatibility of materials with varying phosphate contents was evaluated in cultured human bone marrow stromal cells (HBMSC), in terms of cytotoxicity, cell attachment, proliferation and immunohistochemistry. Negatively charged cellulose phosphates were neutralized in the form of the calcium salt before contact with cells. Cellulose phosphates were not cytotoxic, independently of the phosphate content. Unmodified regenerated cellulose hydrogels showed good rates of HBMSC attachment and proliferation. On the contrary, negatively charged, highly hydrophilic, phosphorylated surfaces showed poor HBMSC attachment and proliferation, as well as poor alkaline phosphatase-specific activity and expression of osteocalcin and type I collagen. Differences found are discussed in terms of surface chemical functionality, hydrophilicity and charge. {\textcopyright} 2005 Elsevier B.V. All rights reserved.},
	keywords = {Biocompatibility, Biomaterials, Cell attachment, Cell culture, Cellulose, Cellulose derivatives, Cellulose phosphates, Cytotoxicity, Grafting (chemical), Human bone marrow stromal cells, Hydrogels, hydrophilicity, immunohistochemistry, In vitro, Phosphorylation, Proliferation, Regenerated cellulose hydrogels, toxicity},
	isbn = {13815148 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-33745266092\&partnerID=40\&md5=52325c348b6bd4139bbfb3dbc0419bd8},
	author = {Granja, P.L. and J{\'e}so, B.D. and Bareille, R. and Rouais, F. and Baquey, C. and Barbosa, M.A.}
}
@conference {2388,
	title = {Characterization of fetal heart rate irregularity using approximate entropy and wavelet filtering},
	booktitle = {Computers in CardiologyComput Cardiol},
	series = {2006 Computers in Cardiology, CIC},
	volume = {33},
	year = {2006},
	note = {Conference code: 73228Cited By (since 1996): 3Export Date: 21 November 2012Source: ScopusArt. No.: 4512006CODEN: COCADLanguage of Original Document: EnglishCorrespondence Address: Marques De S{\'a}, J. P.; Faculdade de Engenharia, DEEC, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal; email: jmsa@fe.up.ptReferences: Pincus, S., Approximate entropy as a measure of system complexity (1991) Proc. Natl. Acad. Sci. U.S.A, 88, pp. 2297-2301;Pincus, S., Randomness and degrees of irregularity (1996) Proc. Natl. Acad. Sci. U.S.A, 93, pp. 2083-2088; 
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Ayres-de-Campos, D., Bernardes, J., Garrido, A., Marques-de-S{\'a}, J., Pereira-Leite, L., SisPorto 2.0 - A Program for Automated Analysis of Cardiotocograms (2000) J Matern Fetal Med, 9, pp. 311-318; 
S{\'a} Couto, P.M., van Meurs, W.L., Bernardes, J.F., Marques de, S.J., Goodwin, J.A., Combined Model-Driven and Rule-Based Approach for Educational Simulation of Fetal Heart Rate (2002) Proc. 16th Biennial Int. Conf. Europ. Assoc. for Speech, Signal and Image Processing, pp. 400-402. , EURASIP, Brno, Czech Rep, pp; 
Marques de S{\'a}, J.P., Characterization of fetal heart rate using approximate entropy (2005) Proc. IEEE Comp. in Cardiology 2005, 32, pp. 671-673
},
	month = {2006///},
	pages = {933 - 936},
	address = {Valencia},
	abstract = {Approximate Entropy (ApEn) has been used by several researchers as a means to characterize the irregularity of fetal heart rate (FHR), a major contributor to fetal risk assessment. The present work starts by analyzing the influence of accelerative and decelerative (AD) components of the FHR signal in the computation of ApEn. Having shown that the AD components may completely distort the ApEn evaluation we proceed to present two methods of eliminating the influence of the AD components: wavelet filtering; AD detection using specific algorithms based on well-established physiological criteria. We obtained good results with the first method when applied to simulated signals; however it proved unreliable in the practical application of discriminating normal from pathological fetal FHR. With the second method we were able to achieve this discrimination with high statistical significance.},
	keywords = {Approximate entropy, Cardiology, Fetal heart rate, Neonatal monitoring, Occupational risks, Physiological models, risk assessment, Risk management, Safety engineering, Simulated signals, Statistical significance, Wavelet filtering},
	isbn = {02766574 (ISSN); 1424425328 (ISBN); 9781424425327 (ISBN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-50149100681\&partnerID=40\&md5=51e2dd8109d66e30498d7c2f8689c820},
	author = {Magalh{\~a}es, F. and Marques De S{\'a}, J.P. and Bernardes, J. and Ayres-de-Campos, D.}
}
@article {2404,
	title = {Differentiation of mononuclear precursors into osteoclasts on the surface of Si-substituted hydroxyapatite},
	journal = {Journal of Biomedical Materials Research - Part AJ. Biomed. Mater. Res. Part A},
	volume = {78},
	year = {2006},
	note = {Cited By (since 1996): 13Export Date: 21 November 2012Source: ScopusCODEN: JBMRCdoi: 10.1002/jbm.a.30726PubMed ID: 16739170Language of Original Document: EnglishCorrespondence Address: Brooks, R.A.; Orthopaedic Research Unit, Box 180, Addenbrooke{\textquoteright}s Hospital, Hills Road, Cambridge CB2 2QQ, United Kingdom; email: rb10003@cam.ac.ukChemicals/CAS: calcium, 7440-70-2; hydroxyapatite, 1306-06-5, 51198-94-8; phosphate, 14066-19-4, 14265-44-2; silicon, 7440-21-3; Antigens, CD14; Durapatite, 1306-06-5; Silicon, 7440-21-3References: Schilling, A., Linhart, W., Filke, S., Gebauer, M., Schinke, T., Rueger, J., Amling, M., Resorbability of bone substitute biomaterials by human osteoclasts (2004) Biomaterials, 25, pp. 3963-3972;Miller, P., Baram, D., Bilezkian, J., Greenspan, S., Lindsay, R., Riggs, B., Watts, N., Practical clinical application of biochemical markers of bone turnover: Consensus of an expert panel (1999) J Clin Densitom, 2, pp. 323-342; 
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Botelho, C.M., Brooks, R.A., Lopes, M.A., Santos, J.D., Best, S.M., Rushton, N., Bonfield, W., Biological and physical-chemical characterization of phase pure hydroxyapatite and silicon-substituted hydroxyapatite by different microscopy techniques (2004) Key Eng Mater, 254-256, pp. 845-849; 
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Botelho, C.M., Brooks, R.A., Kawai, T., Ogata, S., Ohtsuki, C., Best, S.M., Lopes, M.A., Bonfield, W., In vitro analysis of protein adhesion to phase pure hydroxyapatite and silicon-substituted hydroxyapatite (2005) Key Eng Mat, 284-286, pp. 461-464
},
	month = {2006///},
	pages = {709 - 720},
	abstract = {In healthy bone, resorption and synthesis are in perfect coordination. In previous studies we demonstrated that the incorporation of silicon into the hydroxyapatite (HA) lattice enhances the proliferation and differentiation of human osteoblasts. Therefore, the aim of this study was to demonstrate the effect of silicon-substituted HA (0.8 and 1.5 wt \% Si-HA) on the differentiation of mononuclear cells into osteoclasts, using two different starting cultures, peripheral blood mononuclear cells (PBMC) and monocytes expressing the CD14 antigen (CD14                        +). Through this study, it was possible to demonstrate that Si-HA allows the differentiation of mononuclear cells into mature osteoclasts, independent of the starting culture, PBMC or CD14
                        +. Most of the cells on the surface of the materials expressed osteoclastic markers: actin rings, several nuclei, positivity for tartrate-resistant acid phosphatase (TRAP), and vitronectin receptor. In the presence of osteoclasts, a higher release of calcium and phosphate into the medium from the 1.5 wt \% Si-HA substrate was detected when compared to the HA substrate; therefore, these results indicate higher osteoclastic resorptive activity on the 1.5 wt \% Si-HA surface. Si-HA can be resorbed by cellular mechanisms and have a stimulatory effect on osteoclasts, although the underlying mechanism is still poorly understood. {\textcopyright} 2006 Wiley Periodicals, Inc.
},
	keywords = {acid phosphatase tartrate resistant isoenzyme, actin, Antigens, CD14, article, Biomarkers, Calcium, CD14 antigen, cell differentiation, Cells, controlled study, Differentiation, Durapatite, human, human cell, hydroxyapatite, Microscopy, Fluorescence, monocyte, Monocytes, Monocytes CD14 positive, Osteoblasts, osteoclast, Osteoclasts, osteolysis, peripheral blood mononuclear cell, Peripheral blood mononuclear cells, phosphate, Silicon, Silicon-substituted hydroxyapatite, Sorption, Substitution reactions, Substrates, surface property, Synthesis (chemical), vitronectin receptor},
	isbn = {00219304 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-33748188416\&partnerID=40\&md5=57eb54a8d9a9fb85ada3a8fa45d323fa},
	author = {Botelho, C.M. and Brooks, R.A. and Spence, G. and McFarlane, I. and Lopes, M.A. and Best, S.M. and Santos, J.D. and Rushton, N. and Bonfield, W.}
}
@article {2392,
	title = {Fibrinogen adsorption, platelet adhesion and activation on mixed hydroxyl-/methyl-terminated self-assembled monolayers},
	journal = {BiomaterialsBiomaterials},
	volume = {27},
	year = {2006},
	note = {Cited By (since 1996): 70Export Date: 21 November 2012Source: ScopusCODEN: BIMADdoi: 10.1016/j.biomaterials.2006.06.010PubMed ID: 16842847Language of Original Document: EnglishCorrespondence Address: Martins, M.C.L.; INEB - Instituto de Engenharia Biom{\'e}dica, Laborat{\'o}rio de Biomateriais, Universidade do Porto, Rua do Campo Alegre, 823, 4150-180 Porto, Portugal; email: cmartins@ibmc.up.ptChemicals/CAS: fibrinogen, 9001-32-5; glutaraldehyde, 111-30-8, 37245-61-7; gold, 7440-57-5; thiol derivative, 13940-21-1; Alkanes; Biocompatible Materials; Fibrinogen, 9001-32-5; hydroxide ion, 14280-30-9; Hydroxides; Sulfhydryl CompoundsReferences: Savage, B., Ruggeri, Z.M., Selective recognition of adhesive sites in surface-bound fibrinogen by glycoprotein-iib-iiia on nonactivated platelets (1991) J Biol Chem, 266 (17), pp. 11227-11233;Tsai, W.B., Grunkemeier, J.M., McFarland, C.D., Horbett, T.A., Platelet adhesion to polystyrene-based surfaces preadsorbed with plasmas selectively depleted in fibrinogen, fibronectin, vitronectin, or von Willebrand{\textquoteright}s factor (2002) J Biomed Mater Res, 60 (3), pp. 348-359; 
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},
	month = {2006///},
	pages = {5357 - 5367},
	abstract = {The effect of surface wettability on fibrinogen adsorption, platelet adhesion and platelet activation was investigated using self-assembled monolayers (SAMs) containing different ratios of longer chain methyl- and shorter chain hydroxyl-terminated alkanethiols (C15CH3 vs. C11OH) on gold. Protein adsorption studies were performed using radiolabeled human fibrinogen (HFG). Platelet adhesion and activation studies with and without pre-adsorbed fibrinogen, albumin and plasma were assessed using scanning electron microscopy (SEM) and a glutaraldehyde-induced fluorescence technique (GIFT). Results demonstrated a linear decrease of HFG adsorption with the increase of OH groups on the monolayer (increase of the hydrophilicity). Platelet adhesion and activation also decrease with increase of hydrophilicity of surface. Concerning SAMs pre-immersed in proteins, fibrinogen adsorption was related with high platelet adhesion and activation. The passivant effect of albumin on platelet adhesion and activation was only demonstrated on SAMs contained C11OH. When all the blood proteins are present (plasma) platelet adhesion was almost absent on SAMs with 65\% and 100\% C11OH. This could be explained by the higher albumin affinity of the SAMs with 65\% C11OH and the lower total protein adsorption associated with SAMs with 100\% C11OH. {\textcopyright} 2006 Elsevier Ltd. All rights reserved.},
	keywords = {Adsorption, Albumin, alkane derivative, Alkanes, article, binding affinity, Biocompatible Materials, Blood Platelets, Cells, Cultured, Chemical reactions, controlled study, Crystallization, fibrinogen, Fluorescence, fluorescence analysis, glutaraldehyde, gold, human, human cell, Humans, hydrophilicity, Hydroxides, hydroxyl group, materials testing, methyl group, Methylation, monolayer culture, Monolayers, normal human, Organic compounds, plasma, Plasma protein, Platelet activation, Platelet adhesion, Platelet Adhesiveness, priority journal, Protein adsorption, protein binding, Proteins, Radiolabeled human fibrinogen (HFG), Scanning electron microscopy, Self assembled, SEM, Sulfhydryl Compounds, surface property, thiol derivative, thrombocyte adhesion, wettability},
	isbn = {01429612 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-33746216936\&partnerID=40\&md5=c2c54ad0448df431fbd884394915eb51},
	author = {Rodrigues, S.N. and Gon{\c c}alves, I.C. and Martins, M.C.L. and Barbosa, M.A. and Ratner, B.D.}
}
@article {2399,
	title = {Functionalization of chitosan membranes through phosphorylation: Atomic force microscopy, wettability, and cytotoxicity studies},
	journal = {Journal of Applied Polymer ScienceJ. Appl. Polym. Sci.},
	volume = {102},
	year = {2006},
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},
	month = {2006///},
	pages = {276 - 284},
	abstract = {Grafting negatively charged groups such as phosphates is a well-known strategy for inducing the deposition of apatite-like layers under simulated physiological conditions. In this investigation, chitosan was phosphorylated in an attempt to enhance its osteoconduction. Chitosan membranes were phosphorylated at 30{\textdegree}C with the H                        3PO
                        4/ Et 
                        3PO
                        4/P
                        2O
                        5/butanol reaction system for periods up to 48 h. This method is an alternative to the phosphoric acid/ urea/dimethylformamide phosphorylation method, which involves the use of much higher temperatures. In this study, the effects of the phosphorylation reaction time on the surface morphology and surface free energy of phosphorylated membranes were investigated with atomic force microscopy and static-contact-angle measurements, respectively. In addition, the modified membranes were evaluated with respect to their cytotoxiciry toward bone cells through the incubation of human osteoblastic cells with extracts of the materials for two different periods: 24 and 120 h. The results revealed a reduction of the average surface roughness at the nanometer scale with increasing phosphorylation reaction time. Wettability studies showed an increase in the polar component of the surface free energy with increasing reaction time as a result of the increase in the phosphate surface concentration. Cytotoxicity studies revealed no cytotoxic effect of phosphorylated membranes on osteoblastic cells, regardless of the incubation period. {\textcopyright} 2006 Wiley Periodicals, Inc.
},
	keywords = {Atomic force microscopy, Atomic force microscopy (AFM), Biocompatibility, Biological applications, Biological applications of polymers, Biomaterials, Chitin, chitosan, Chitosan membranes, grafting, Grafting (chemical), Osteoblastic cells, Phosphorylation, Polymeric membranes, polysaccharide, Polysaccharides, surface property, toxicity, Urea},
	isbn = {00218995 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-33749478403\&partnerID=40\&md5=c365a50e3e767b1da90ad4ccd331440b},
	author = {Amaral, I.F. and Granja, P.L. and Melo, L.V. and Saramago, B. and Barbosa, M.A.}
}
@article {2391,
	title = {Human osteoblast response to silicon-substituted hydroxyapatite},
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	year = {2006},
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},
	month = {2006///},
	pages = {723 - 730},
	abstract = {Human osteoblasts were cultured on hydroxyapatite (HA), 0.8 wt \% silicon substituted hydroxyapatite (Si-HA) and 1.5 wt \% Si-HA discs. The influence of these substrates on cell behaviour in vitro was assessed by measuring total protein in the cell lysate and the production of several phenotypic markers: collagen type I (COL 1), alkaline phosphatase (ALP), osteocalcin (OC), and the formation of bone mineral. After 7 days, β-glycerophosphate and physiological levels of hydrocortisone were added to the culture medium to stimulate cell differentiation and mineral production. There was a significantly higher production of ALP on 1.5 wt \% Si-HA at day 7 following which, the addition of hydrocortisone promoted the differentiation of cells on the other two substrates. Hydrocortisone addition also decreased the production of OC. During the period, when hydrocortisone was present, no significant difference in behavior was seen between cells on Si-HA and HA; however, following removal of hydrocortisone, cells responded to 0.8 wt \% Si-HA with a significant increase in protein production. Using fluorescence microscopy, nodular structures labeled with tetracycline were observed on the surface of all substrates after 21 days. These structures were deposited on areas of high cell density but were not related to the presence or level of silicon in the substrate. These results indicate that human osteoblasts are affected by the presence of silicon in the HA substrate and that the timing of these effects may be dependent upon the level of silicon substitution. {\textcopyright} 2006 Wiley Periodicals, Inc.},
	keywords = {alkaline phosphatase, article, Biomarkers, bone mineral, cell activity, Cell culture, cell density, cell differentiation, cell function, cell lysate, cell marker, cell protein, Cells, Cells, Cultured, collagen type 1, Collagen type I, culture medium, Durapatite, Fluorescence microscopy, glycerol 2 phosphate, hormone determination, human, human cell, Human osteoblasts, Humans, Hydrocortisone, hydroxyapatite, in vitro study, Minerals, Nodular mineral formation, osteoblast, Osteoblasts, osteocalcin, Osteocalcin (OC), phenotype, Phosphoric Diester Hydrolases, protein analysis, protein synthesis, Pyrophosphatases, Silicon, Substitution reactions, Substrates, Tetracycline, β-glycerophosphate},
	isbn = {00219304 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-33751569252\&partnerID=40\&md5=249e45e76c3a063cab2222579772ab6e},
	author = {Botelho, C.M. and Brooks, R.A. and Best, S.M. and Lopes, M.A. and Santos, J.D. and Rushton, N. and Bonfield, W.}
}
@article {2420,
	title = {The influence of functional groups of self-assembled monolayers on fibrous capsule formation and cell recruitment},
	journal = {Journal of Biomedical Materials Research - Part AJ. Biomed. Mater. Res. Part A},
	volume = {76},
	year = {2006},
	note = {Cited By (since 1996): 13Export Date: 21 November 2012Source: ScopusCODEN: JBMRCdoi: 10.1002/jbm.a.30602Language of Original Document: EnglishCorrespondence Address: Barbosa, J.N.; INEB-Instituto de Engenharia Biom{\'e}dica, Laborat{\'o}rio de Biomateriais, Rua do Campo Alegre 823, 4150-180 Porto, Portugal; email: judite@ibmc.up.ptChemicals/CAS: gold, 7440-57-5; thiol derivative, 13940-21-1; Biocompatible Materials; Gold, 7440-57-5; Sulfhydryl CompoundsReferences: Babensee, J.E., Anderson, J.M., McIntire, L.V., Mikos, A.G., Host response to tissue engineered devices (1998) Adv Drug Deliv Rev, 33, pp. 111-139;Anderson, J.M., In vivo biocompatibility of implantable delivery systems and biomaterials (1994) Eur J Pharm Biopharm, 40, pp. 1-8; 
Anderson, J.M., Biological responses to materials (2001) Annu Rev Mater Res, 31, pp. 81-110; 
Tang, L., Eaton, J.W., Inflammatory responses to biomaterials (1995) Am J Clin Pathol, 103, pp. 466-471; 
Mrksich, M., Whitesides, G.M., Interactions of SAM{\textquoteright}s with proteins (1996) Annu Rev Biophys Biomol Struct, 25, pp. 55-57; 
Ulman, A., Formation and structure of self-assembled monolayers (1996) Chem Rev, 96, pp. 1533-1554; 
Mrkisich, M., Tailored substrates for studies of attached cell culture (1998) Cell Mol Life Sci, 54, pp. 653-662; 
Pan, S., Castner, D.G., Ratner, B.D., Multitechnique surface characterization of derivatization efficiences for hydroxyl-terminated self-assembled monolayers (1998) Langmuir, 14, pp. 3545-3550; 
Sedwick, A.D., Sin, Y.M., Edwards, J.C., Willoughby, D.A., Increased inflammatory reactivity in newly formed lining tissue (1983) J Pathol, 141, pp. 483-495; 
Castro, A.G., Esaguy, N., Macedo, P.M., {\'A}guas, A.P., Silva, M.T., Live but not heat-killed mycobacteria cause rapid chemotaxis of large numbers of eosinophils in vivo and are ingested by the attracted granulocytes (1991) Infect Immun, 59, pp. 3009-3014; 
Isaji, M., Momose, Y., Naito, J., Enhancement of inflammatory reactions in a non-immunological air pouch model in rats (1989) Br J Exp Pathol, 70, pp. 705-716; 
Martins, M.C.L., Naeemi, E., Ratner, B.D., Barbosa, M.A., Albumin adsorption on cibacron blue F3G-A immobilized onto oligo(ethylene glycol)-terminated self-assembled monolayers (2003) J Mater Sci Mater Med, 14, pp. 945-954; 
Lin, J., Chuang, W., Synthesis, surface characterization, and platelet reactivity evaluation for the self-assembled monolayer of alkanethiol with sulfonic acid functionality (2000) J Biomed Mater Res, 51, pp. 413-423; 
Thomsen, P., Gretzer, C., Macrophage interactions with modified materials surfaces (2001) Curr Opin Solid State Mater Sci, 5, pp. 163-176; 
Tegoulia, V.A., Cooper, S.L., Leukocyte adhesion on model surfaces under flow: Effects of surface chemistry, protein adsorption, and shear rate (2000) J Biomed Mater Res, 50, pp. 291-301; 
Tsai, M., Lin, J., Surface characterization and platelet adhesion studies of self-assembled monolayers with phosphonate ester and phosphonic acid functionalities (2001) J Biomed Mater Res, 55, pp. 554-565; 
Ostuni, E., Yan, L., Whitesides, G.M., The interaction of proteins and cells with self-assembled monolayers of alkanethiolates on gold and silver (1999) Colloids Surf B, 15, pp. 3-30; 
Yang, S., Ren, W., Park, Y., Sieving, A., Hsu, S., Nasser, S., Wooley, P.H., Diverse cellular and apoptotic responses to variant shapes of UHMWPE particles in a murine model of inflammation (2002) Biomaterials, 23, pp. 3535-3543; 
Sieving, A., Wu, B., Mayton, L., Nasser, S., Wooley, P.H., Morphological characteristics of total joint arthroplasty-derived ultrahigh molecular weight polyethylene (UHMWPE) wear debris that provoke inflammation in a murine model of inflammation (2003) J Biomed Mater Res A, 64, pp. 457-464; 
Barbosa, J.N., Barbosa, M.A., {\'A}guas, A.P., Inflammatory responses and cell adhesion to self-assembled monolayers of alkanethiolates on gold (2004) Biomaterials, 25, pp. 2557-2563; 
Anderson, D.C., Springer, T.A., Leukocyte adhesion deficiency: An inherited defect in the Mac-1, LFA-1 and p150, 95 glycoproteins (1987) Annu Rev Med, 38, pp. 175-184; 
Murphy, R.T., Foley, J.B., Crean, P., Walsh, M.J., Reciprocal activation of leukocyte-endothelial adhesion molecules in acute coronary syndromes (2003) Int J Cardiol, 90, pp. 247-252; 
Tang, L., Wu, Y., Timmons, R.B., Fibrinogen adsorption and host tissue responses to plasma functionalized surfaces (1998) J Biomed Mater Res, 42, pp. 156-163; 
Barbosa, J.N., Madureira, P., Barbosa, M.A., {\'A}guas, A.P., The attraction of Mac-1 + phagocytes during acute inflammation by methyl-coated self-assembled monolayers (2005) Biomaterials, 26, pp. 3021-3027
},
	month = {2006///},
	pages = {737 - 743},
	abstract = {The contribution of the surface chemistry of an implant to the thickness of the fibrous capsule formed after implantation was herein investigated. For that, self-assembled monolayers (SAMs) of alkanethiols on gold with different terminal functional groups (COOH, OH, and CH                        3) were used. These surfaces were implanted in subcutaneous air pouches of BALB/c mice and the ensuing fibrous capsules were evaluated and compared with the initial inflammatory response caused by the implant. The thickness of the fibrous capsules that are under organization around the implant was measured 1 week after implantation by histology. Inflammatory exudates were collected from the air pouches 24 h after the implantation of SAMs and were analyzed by flow cytometry. A significant increase in the thickness of fibrous capsules was seen around implanted CH
                        3-terminated SAMs, and also in gold surfaces, in comparison with the air pouch wall of sham-operated mice and of COOH- and OH-covered SAMs. The CH
                        3-coated implants also recruited higher numbers of inflammatory cells; this enhancement involved a significant number of Mac-1
                        + cells. Our data indicate that implant surfaces coated with CH
                        3 induce thick fibrous capsules and this may be the result of the stronger inflammatory effect of CH
                        3 in comparison with COOH or OH chemical groups. {\textcopyright} 2005 Wiley Periodicals, Inc.
},
	keywords = {animal, animal cell, animal experiment, animal model, animal tissue, Animals, article, Bagg albino mouse, Biocompatible Materials, biomaterial, chemistry, controlled study, flow cytometry, functional group, gold, histology, implantation, Inflammation, male, Mice, Mice, Inbred BALB C, Monolayers, mouse, nonhuman, Self assembly, Self-assembled monolayers, Sulfhydryl Compounds, Surface chemistry, thiol derivative, tissue reaction, Tissue responses},
	isbn = {15493296 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-33745564665\&partnerID=40\&md5=6cbc5f976e86764eea35724a4af706f9},
	author = {Barbosa, J.N. and Madureira, P. and Barbosa, M.A. and {\'A}guas, A.P.}
}
@article {2419,
	title = {Internal versus external intrapartum foetal heart rate monitoring: The effect on linear and nonlinear parameters},
	journal = {Physiological MeasurementPhysiol. Meas.},
	volume = {27},
	year = {2006},
	note = {Cited By (since 1996): 15Export Date: 21 November 2012Source: ScopusCODEN: PMEAEdoi: 10.1088/0967-3334/27/3/008PubMed ID: 16462016Language of Original Document: EnglishCorrespondence Address: Gon{\c c}alves, H.; Departamento de Matem{\'a}tica Aplicada, Faculdade de Ci{\^e}ncias, Universidade Do Porto, Porto, Portugal; email: hernani.goncalves@fc.up.ptReferences: Ayres-De-Campos, D., Bernardes, J., Garrido, A., Marques-De-S{\'a}, J., Pereira-Leite, L., SisPorto 2.0: A program for automated analysis of cardiotocograms (2000) J. Matern. Fetal Med., 9 (5), pp. 311-318;Ayres-De-Campos, D., Bernardes, J., Reynolds, A., Saraiva, J.P., Santos, C., Pereira-Leite, L., Computer evaluation of internal versus external FHR monitoring in the minutes preceding delivery (2000) Int. J. Gynecol. Obstet., 70, pp. 60-B61; 
Ayres-De-Campos, D., Santos, C., Bernardes, J., Prediction of neonatal state by computer analysis of fetal heart rate tracings: The antepartum arm of the SisPorto {\textregistered}multicentre validation study (2005) Eur. J. Obstet. Gynecol. Reprod. Biol., 118 (1), pp. 52-60; 
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Lunghi, F., Magenes, G., Pedrinazzi, L., Signorini, M.G., Detection of fetal distress through a support vector machine based on fetal heart rate parameters (2005) Comput. Cardiol., 32, pp. 247-250; 
Magenes, G., Signorini, M.G., Arduini, D., Classification of cardiotocographic records by neural networks (2000) IJCNN 2000: Proc. IEEE-INNS-ENNS Int. Joint Conf. on Neural Networks, pp. 637-641; 
Electronic fetal heart rate monitoring: Research guidelines for interpretation (1997) Am. J. Obstet. Gynecol., 177 (6), pp. 1385-1390; 
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Oppenheimer, L.W., Lewinsky, R.M., Power spectral analysis of fetal heart rate (1994) Baillieres Clin. Obstet. Gynaecol., 8, pp. 643-661; 
Peters, C.H., Ten Broeke, E.D., Andriessen, P., Vermeulen, B., Berendsen, R.C., Wijn, P.F., Oei, S.G., Beat-to-beat detection of fetal heart rate: Doppler ultrasound cardiotocography compared to direct ECG cardiotocography in time and frequency domain (2004) Physiol. Meas., 25 (2), pp. 585-593; 
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Yum, M.K., Kim, K., Kim, J.H., Park, E.Y., A consistent abnormality in the average local smoothness of fetal heart rate in growth-restricted fetuses affected by severe pre-eclampsia (2004) Hypertens. Res., 27 (12), pp. 911-918
},
	month = {2006///},
	pages = {307 - 319},
	abstract = {The effect of foetal heart rate (FHR) acquisition mode on linear and nonlinear parameters is still largely unknown. In 33 normal labouring women, FHR signals were acquired simultaneously by an external ultrasound sensor applied to the maternal abdomen and an internal scalp electrode, in the minutes preceding delivery. For each case, the initial and final 5, 10 and 20 min segments were analysed, considering FHR signals at a frequency of 4 Hz (the frequency at which they are transmitted by the majority of commercialized foetal monitors). Several time and frequency domain linear and nonlinear FHR indices were computed in these segments, namely mean FHR, very low frequency (VLF), low frequency (LF), high frequency (HF), approximate entropy (ApEn) and sample entropy (SampEn). Parametric confidence intervals, statistical tests and correlation coefficients were calculated in order to evaluate the effect of internal versus external FHR monitoring modes on the considered indices. The whole evaluation was repeated using FHR signals at a frequency of 2 Hz. Most time domain linear indices were similar with external and internal monitoring in the initial and final segments of the tracings. However, linear frequency domain indices were poorly correlated in the final segments and had significantly different mean values in the initial segments. Nonlinear indices were significantly different in both initial and final segments. The correlation between 4 and 2 Hz sampled parameters was high for both linear and nonlinear indices (most correlation coefficient values ranging between 0.95 and 1) but nonlinear index values were significantly higher at 2 Hz. In conclusion, the mode used to acquire FHR signals and the sampling rate employed can significantly affect most FHR indices. {\textcopyright} 2006 IOP Publishing Ltd.},
	keywords = {abdomen, Algorithms, article, Cardiotocography, commercial phenomena, Confidence interval, controlled study, correlation coefficient, delivery, Diagnosis, Computer-Assisted, Electrocardiography, electrode, entropy, External and internal monitoring, Female, fetus electrocardiography, fetus monitoring, Foetal heart rate (FHR), Frequency domain analysis, Heart, Heart rate, human, intermethod comparison, intrapartum care, Linear and nonlinear analysis, Linear Models, mathematical computing, Nonlinear Dynamics, normal human, priority journal, Reproducibility of Results, sensitivity and specificity, sensor, Signal Processing, Computer-Assisted, Statistical significance, ultrasound, Variability},
	isbn = {09673334 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-32144438860\&partnerID=40\&md5=dd6dbb9f364b7f974c7048c4cf08d53f},
	author = {Gon{\c c}alves, H. and Rocha, A.P. and Ayres-de-Campos, D. and Bernardes, J.}
}
@article {2408,
	title = {Leptin effect on RANKL and OPG expression in MC3T3-E1 osteoblasts},
	journal = {Journal of Cellular BiochemistryJ. Cell. Biochem.},
	volume = {98},
	year = {2006},
	note = {Cited By (since 1996): 17Export Date: 21 November 2012Source: ScopusCODEN: JCEBDdoi: 10.1002/jcb.20853PubMed ID: 16479591Language of Original Document: EnglishCorrespondence Address: Lamghari, M.; INEB-Instituto de Engenharia Biom{\'e}dica, Laborat{\'o}rio de Biomateriais, Rua Campo Alegre 823, 4150-180, Porto, Portugal; email: lamghari@ineb.up.ptChemicals/CAS: osteoclast differentiation factor, 200145-93-3; osteoprotegerin, 205944-50-9; Alkaline Phosphatase, EC 3.1.3.1; Carrier Proteins; Glycoproteins; leptin receptor; Leptin; Membrane Glycoproteins; Osteoprotegerin; RANK Ligand; Receptor Activator of Nuclear Factor-kappa B; Receptors, Cell Surface; Receptors, Cytoplasmic and Nuclear; Receptors, Tumor Necrosis Factor; RNA, Messenger; Tnfrsf11a protein, mouse; Tnfrsf11b protein, mouse; Tnfsf11 protein, mouseReferences: Burguera, B., Hofbauer, L.C., Thomas, T., Gori, F., Evans, G.L., Khosla, S., Riggs, B.L., Turner, R.T., Leptin reduces ovariectomy-induced bone loss in rats (2001) Endocrinology, 142, pp. 3546-3553;Cornish, J., Callon, K.E., Bava, U., Lin, C., Naot, D., Hill, B.L., Grey, A.B., Reid, I.R., Leptin directly regulates bone cell function in vitro and reduces bone fragility in vivo (2002) J Endocrinol, 175, pp. 405-415; 
Ducy, P., Amling, M., Takeda, S., Priemel, M., Schilling, A.F., Beil, F.T., Shen, J., Karsenty, G., Leptin inhibits bone formation through a hypothalamic relay: A central control of bone mass (2000) Cell, 100, pp. 197-207; 
Elefteriou, F., Ahn, J.D., Takeda, S., Starbuck, M., Yang, X., Liu, X., Kondo, H., Karsenty, G., Leptin regulation of bone resorption by the sympathetic nervous system and CART (2005) Nature, 434, pp. 514-520; 
Elmquist, J.K., Hypothalamic pathways underlying the endocrine, autonomic, and behavioral effects of leptin (2001) Physiol Behav, 74, pp. 703-708; 
Gordeladze, J.O., Drevon, C.A., Syversen, U., Reseland, J.E., Leptin stimulates human osteoblastic cell proliferation, de novo collagen synthesis, and mineralization: Impact on differentiation markers, apoptosis, and osteoclastic signaling (2002) J Cell Biochem, 85, pp. 825-836; 
Holloway, W.R., Collier, F.M., Aitken, C.J., Myers, D.E., Hodge, J.M., Malakellis, M., Gough, T.J., Nicholson, G.C., Leptin inhibits osteoclast generation (2002) J Bone Miner Res, 17, pp. 200-209; 
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Lee, Y.J., Park, J.H., Ju, S.K., You, K.H., Ko, J.S., Kim, H.M., Leptin receptor isoform expression in rat osteoblasts and their functional analysis (2002) FEBS Lett, 528, pp. 43-47; 
Liu, J., Yang, H., Liu, W., Cao, X., Feng, X., Sp1 and Sp3 regulate the basal transcription of receptor activator of nuclear factor kappa B ligand gene in osteoblasts and bone marrow stromal cells (2005) J Cell Biochem, 96 (4), pp. 716-727; 
Martin, A., De Vittoris, R., David, V., Moraes, R., B{\'e}geot, M., Lafage-Proust, M.H., Alexandre, C., Thomas, T., Leptin modulates both r{\'e}sorption and formation while preventing disuse-induced bone loss in tail-suspended female rats (2005) Endocrinology, 146, pp. 3652-3659; 
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},
	month = {2006///},
	pages = {1123 - 1129},
	abstract = {Recent studies have suggested that leptin hormone may play a pivotal role on bone remodeling through a direct effect by modulating positively the OPG/RANKL balance. Here, we investigate the effect of leptin hormone on RANKL and OPG expression in MC3T3-E1 osteoblasts using RT-PCR and ELISA measurements. We have at first identified the expression of Ob-Rb and Ob-Ra leptin receptor isoforms in MC3T3-E1 and observed that these cells respond to mrleptin treatments. We then investigated the effect of mrleptin on RANKL and OPG expression. We show that mrleptin dose-dependently regulated the expression of RANKL mRNA with complete inhibition observed at concentrations higher than 12 ng/ml. This effect was confirmed with sRANKL protein measurements. However, the exposure of MC3T3-E1 to mrleptin had no effect on OPG mRNA. Taken together, these results suggest that leptin modulates positively OPG/RANKL balance by inhibiting the expression of RANKL gene. {\textcopyright} 2006 Wiley-Liss, Inc.},
	keywords = {alkaline phosphatase, animal cell, Animals, article, bone remodeling, Carrier Proteins, Cell Line, enzyme linked immunosorbent assay, gene expression, gene expression regulation, Glycoproteins, hormone action, leptin, leptin receptor, leptin receptor a, leptin receptor b, MC3T3-E1, Membrane Glycoproteins, messenger RNA, Mice, mouse, nonhuman, Ob-Ra, Ob-Rb, OPG, osteoblast, Osteoblasts, osteoclast differentiation factor, Osteoprotegerin, priority journal, protein expression, RANK Ligand, RANKL, Receptor Activator of Nuclear Factor-kappa B, Receptors, Cell Surface, Receptors, Cytoplasmic and Nuclear, Receptors, Tumor Necrosis Factor, reverse transcription polymerase chain reaction, RNA extraction, RNA, Messenger, unclassified drug},
	isbn = {07302312 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-33746452603\&partnerID=40\&md5=f5eb37e7159ced26f3b7e756d59bc1bb},
	author = {Lamghari, M. and Tavares, L. and Camboa, N. and Barbosa, M.A.}
}
@article {2400,
	title = {Linear and nonlinear fetal heart rate analysis of normal and acidemic fetuses in the minutes preceding delivery},
	journal = {Medical and Biological Engineering and ComputingMed. Biol. Eng. Comput.},
	volume = {44},
	year = {2006},
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},
	month = {2006///},
	pages = {847 - 855},
	abstract = {Linear and nonlinear fetal heart rate (FHR) indices, namely mean FHR, interval index (II), very low, low and high frequencies, approximate (ApEn) and sample entropy (SampEn), were computed, immediately before delivery, in the initial and final FHR tracing segments, from 48 normal, 10 mildly acidemic and 10 moderate-to-severely acidemic fetuses. Progression of labor was associated with a significant increase in linear frequency domain indices whereas nonlinear indices were significantly decreased. Moderate-to-severe fetal acidemia was associated with a significant decrease in nonlinear indices. The best discrimination between moderate-to-severe acidemic fetuses and the remaining cases was obtained combining II and ApEn(2,0.15), with a specificity of 71\% and a sensitivity of 80\%. These findings support the hypothesis of increased autonomic nervous system activity in the final minutes of labor and of decreased central nervous system activity, both in the final minutes of labor and in moderate-to-severe acidemic fetuses. {\textcopyright} International Federation for Medical and Biological Engineering 2006.},
	keywords = {acidemia, Acidosis, Acids, article, autonomic nervous system, Biological materials, Cardiology, Central nervous system, clinical article, controlled study, delivery, Delivery, Obstetric, Discriminant Analysis, disease severity, entropy, Fetal Diseases, Fetal heart rate, Fetal heart rate (FHR), Fetal monitoring, fetus, fetus heart rate, Frequency domain analysis, Heart Rate, Fetal, human, Humans, hypothesis, labor, Linear and nonlinear indices, linear system, Neurology, newborn, nonlinear system, Prenatal Care, Second stage of labor, sensitivity and specificity, Severity of Illness Index},
	isbn = {01400118 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-33749566759\&partnerID=40\&md5=88f9959edd8363f90b13742d0ce5221b},
	author = {Gon{\c c}alves, H. and Rocha, A.P. and Ayres-de-Campos, D. and Bernardes, J.}
}
@article {2407,
	title = {Silicon addition to hydroxyapatite increases nanoscale electrostatic, van der Waals, and adhesive interactions},
	journal = {Journal of Biomedical Materials Research - Part AJ. Biomed. Mater. Res. Part A},
	volume = {78},
	year = {2006},
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},
	month = {2006///},
	pages = {352 - 363},
	abstract = {The normal intersurface forces between nanosized probe tips functionalized with COO},
	keywords = {Adhesives, article, Atomic force microscopy, Biocompatible Materials, biomaterial, Biomaterials, Bone, cell adhesion, chemical binding, chemical interaction, derjaguin landau verwey overbeek approximation, Durapatite, electrochemical analysis, Electrostatic, Electrostatics, high resolution force spectroscopy, hydroxyapatite, materials testing, mathematical analysis, Microscopy, Electron, Scanning, Monolayers, Nanomechanics, Nanostructures, Particle Size, Poisson distribution, Polycrystalline materials, Silicon, Silicon-substituted hydroxyapatite, Spectrophotometry, Spectroscopy, Spectroscopy, Fourier Transform Infrared, Stress, Mechanical, Surface charge, surface property, thiol derivative, Van der Waals, Van der Waals forces},
	isbn = {00219304 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-33745965657\&partnerID=40\&md5=df44bade2fb0a3af786b193c7f42d71a},
	author = {Vandiver, J. and Dean, D. and Patel, N. and Botelho, C. and Best, S. and Santos, J.D. and Lopes, M.A. and Bonfield, W. and Ortiz, C.}
}
@article {2421,
	title = {Three-dimensional culture of human osteoblastic cells in chitosan sponges: The effect of the degree of acetylation},
	journal = {Journal of Biomedical Materials Research - Part AJ. Biomed. Mater. Res. Part A},
	volume = {76},
	year = {2006},
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},
	month = {2006///},
	pages = {335 - 346},
	abstract = {In this investigation, the effect of the degree of acetylation (DA) of chitosan on the behavior of human osteoblastic MG-63 cells cultured in three-dimensional chitosan matrices was assessed. Chitosan sponges with DAs in the range of 4 to 49\% were prepared and characterized in terms of microstructure, porosity, and pore size. Collagen sponges were used as 3D control. Cell proliferation was determined using the MTT assay while the retention of the osteoblastic phenotype was monitored by assaying alkaline phosphatase activity. Cell morphology, cytoskeletal organization, and viability were assessed using different microscopy techniques. Chitosan sponges showed a similar microstructure regardless the DA, except for the highest DA used, where a more heterogeneous pore distribution was observed. In terms of cell proliferation, alkaline phosphatase activity and cell viability, cells cultured in chitosan scaffolds performed as well as in the 3D control regardless the DA, except for the highest DA used, where an inhibitory effect on cell proliferation was found. However, while in sponges with DAs <= 13\% cells attached and spread displaying long cell filopodia and numerous cell-to-cell contacts, in sponges with higher DAs cells tended to remain spherical and grow into spheroid-like cellular aggregates. In the present study, the DA played a key role in determining the affinity of osteoblastic cells towards the substrates, possibly by influencing the nature of the initial adsorbed protein layer. {\textcopyright} 2005 Wiley Periodicals, Inc.},
	keywords = {Acetylation, Aggregates, alkaline phosphatase, article, Bone Regeneration, bone tissue, Bone tissue engineering, Cell culture, Cell Culture Techniques, Cell filopodia, cell growth, cell proliferation, Cell Shape, cell structure, cell survival, cell viability, chitosan, Collagen, confocal microscopy, controlled study, Cytoskeletal organization, cytoskeleton, Degree of acetylation (DA), enzyme activity, gel permeation chromatography, human, human cell, Humans, infrared spectroscopy, Microstructure, morphology, osteoblast, Osteoblastic cells, Osteoblasts, Phosphatase activity, porosity, Proteins, Scaffold, Scaffolds, Scanning electron microscopy, Substrates, Tissue engineering},
	isbn = {00219304 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-33645101773\&partnerID=40\&md5=5adc6336963ec1c8a83d8ec89943159d},
	author = {Amaral, I.F. and Sampaio, P. and Barbosa, M.A.}
}
@article {2401,
	title = {Titanium dental implants coated with Bonelike{\textregistered}: Clinical case report},
	journal = {Thin Solid FilmsThin Solid Films},
	volume = {515},
	year = {2006},
	note = {Cited By (since 1996): 4Export Date: 21 November 2012Source: ScopusCODEN: THSFAdoi: 10.1016/j.tsf.2005.12.151Language of Original Document: EnglishCorrespondence Address: Santos, J.D.; INEB-Instituto de Engenharia Biom{\'e}dica, Laborat{\'o}rio de Biomateriais, Rua Campo Alegre, 823, 4150-180 Porto, Portugal; email: jdsantos@fe.up.ptReferences: Murugan, R., Ramakrishna, S., (2005) Compos. Sci. Technol., 65, p. 2385;Boyle, W.J., Simonet, W.S., Lacey, D.L., (2003) Nature, 423, p. 337; 
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},
	month = {2006///},
	pages = {279 - 284},
	abstract = {The aim of the study was to evaluate the direct bone bonding and osteointegration of the commercial pure (cp Ti) implants coated with Bonelike{\textregistered} synthetic bone graft by plasma spraying. The Bonelike{\textregistered} coated implant was placed in the mandible of a 40-year-old patient and it was removed after a healing period of 3 months with a trephine of 6 mm diameter. The structure of the coating and new bone/implant interface of retrieved samples were evaluated using scanning electron microscopy (SEM) and histological analysis using light microscopy. In vivo microstructure observations of Bonelike{\textregistered} coated retrieved implants showed excellent bone remnants on its surface without any tissue and inflammatory signs observed. The reported Bonelike{\textregistered} coated (cp Ti) implants improved primary stability, which may increase the lifetime of the implant. Bonelike{\textregistered} coated dental implants proved to be highly bioactive with extensive new bone formation and strongly bonded to Bonelike{\textregistered} coating. {\textcopyright} 2005 Elsevier B.V. All rights reserved.},
	keywords = {Bone, Bone Regeneration, Bone/implant interface, Bonelike{\textregistered} coatings, Clinical applications, Dental Implants, Dental prostheses, Hip prostheses, Medical applications, Optical microscopy, Plasma spraying},
	isbn = {00406090 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-33750227720\&partnerID=40\&md5=868e14c9913670ea7c14afbf49c8959e},
	author = {Lobato, J.V. and Sooraj Hussain, N. and Botelho, C.M. and Maur{\'\i}cio, A.C. and Lobato, J.M. and Lopes, M.A. and Afonso, A. and Ali, N. and Santos, J.D.}
}
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},
	month = {2006///},
	pages = {1749 - 1761},
	abstract = {In order to understand the effect of titanium ions on the molecular structure of hydroxyapatite (HAp), HAp powders were incubated in solutions with different titanium concentrations. After incubation, the powders obtained were analysed using different techniques, namely X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), differential thermal analysis (DTA), X-ray photoelectron spectroscopy (XPS), and energy dispersive spectroscopy (EDS). The results suggest that, depending on the concentration of titanium in solution, two different mechanisms of interaction with HAp occur. For concentrations equal to or smaller than 200 ppm, the titanium uptake by the solid seems to be primarily due to incorporation in the lattice. For higher concentrations, a dissolution-precipitation process seems to occur, leading to formation of a titanium phosphate compound. {\textcopyright} 2005 Elsevier Ltd. All rights reserved.},
	keywords = {article, Biocompatible Materials, concentration response, differential scanning calorimetry, drug mechanism, drug structure, Durapatite, Energy dispersive spectroscopy, Fourier transform infrared spectroscopy, hydroxyapatite, Incubation, infrared spectroscopy, Ions, Lattice constants, particulate matter, powder, Precipitation (chemical), priority journal, Solutions, Spectroscopy, Spectroscopy, Fourier Transform Infrared, temperature, Titanium, Titanium ions, Titanium phosphate, X ray diffraction, X ray diffraction analysis, X ray photoelectron spectroscopy, X-Ray Diffraction},
	isbn = {01429612 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-28744435342\&partnerID=40\&md5=d3c05375129c7b4a53ec5a0c4b4271d3},
	author = {Ribeiro, C.C. and Gibson, I. and Barbosa, M.A.}
}
@book {2425,
	title = {Assessment of the potential of Bonelike{\textregistered} graft for bone regeneration by using an animal model},
	series = {Key Engineering MaterialsKey Eng Mat},
	volume = {284-286},
	year = {2005},
	note = {Cited By (since 1996): 5Export Date: 21 November 2012Source: ScopusCODEN: KEMAELanguage of Original Document: EnglishCorrespondence Address: Lobato, J.V.; ICBAS-Instituto de Ci{\^e}ncias Biom{\'e}dicas de Abel Salazar, Universidade do Porto, Largo Professor Abel Salazar 2, PT-4099-003 Porto, Portugal; email: jvlobato@netcabo.ptReferences: Santos, J.D., Hastings, G.W., Knowles, J.C., Sintered Hydroxyapatite Compositions and Method for the Preparation Thereof European Patent WO 0068164Lopes, M.A., Santos, J.D., Monteiro, F.J., Push-out Testing and Histological Evaluation of Glass Reinforced Hydroxyapatite Composites Implanted in the Tibia of Rabbits (2001) J.Biomed Mater Res, 54, pp. 463-469;Lopes, M.A., Santos, J.D., Glass Reinforced Hydroxyapatite Composites; Secondary Phases Proportions and Densification Effects on Biaxial Bending Strength (1999) J.Biomed Mater Res, 48, pp. 734-740; 
Lopes, M.A., Monteiro, F.J., Santos, J.D., Glass Reinforced Hydroxyapatite Composites: Fracture Tougfiness and Hardness Dependence on Microstructural Characteristics (1999) Biomaterials, 2, pp. 2085-2090
},
	month = {2005///},
	pages = {877 - 880},
	abstract = {Bonelike{\textregistered} graft that mimics the inorganic composition of bone tissue has been developed and characterized over the last decade. To evaluate the osteoconductivity of Bonelike{\textregistered} two granule size ranges, one ranging from 150-250μm and the other from 250-500μm were implanted in the femurs of New Zealand White rabbits, aiming at being clinically used in different medical applications, such as dentistry and orthopaedics. In order to facilitate the medical application of the Bonelike{\textregistered} graft the use of a commercially available polymeric vehicle was also analyzed. Radiological examination, histological studies and scanning electron microscopy (SEM) analyses revealed that the surface of Bonelike{\textregistered} granules was almost completely surrounded by new bone formation after 12 weeks of implantation, which proves its highly osteoconductive behaviour.},
	keywords = {animal model, Animal models, Animals, Biomaterials, Biomedical engineering, Biomimetic materials, Bone, bone tissue, Bonelike graft, Bonelike{\textregistered} graft, Granular materials, In vivo studies, Scanning electron microscopy},
	isbn = {10139826 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-33744512103\&partnerID=40\&md5=8f2f8e274f848eb0b105fca4880c0db5},
	author = {Lobato, J.V. and Hussein, N.S. and Botelho, C.M. and Rodrigues, J.M. and Lu{\'\i}s, A.L. and Maur{\'\i}cio, A.C. and Lopes, M.A. and Santos, J.D.}
}
@article {2447,
	title = {Biological evaluation of calcium alginate microspheres as a vehicle for the localized delivery of a therapeutic enzyme},
	journal = {Journal of Biomedical Materials Research - Part AJ. Biomed. Mater. Res. Part A},
	volume = {74},
	year = {2005},
	note = {Cited By (since 1996): 12Export Date: 21 November 2012Source: ScopusCODEN: JBMRCdoi: 10.1002/jbm.a.30348PubMed ID: 16028235Language of Original Document: EnglishCorrespondence Address: Barrias, C.C.; Instituto de Engenharia Biom{\'e}dica (INEB), Laborat{\'o}rio de Biomateriais, Rua do Campo Alegre, 823, 4150-180 Porto, Portugal; email: ccbarrias@ineb.up.ptChemicals/CAS: alginic acid, 28961-37-7, 29894-36-8, 9005-32-7, 9005-38-3; calcium alginate, 9005-35-0; glucosylceramidase, 37228-64-1; iodine 125, 14158-31-7, 22822-81-7; Alginates; alginic acid, 9005-32-7; Drug Carriers; Enzymes, Immobilized; Glucosylceramidase, EC 3.2.1.45; Glucuronic Acid, 576-37-4; Hexuronic AcidsManufacturers: GenzymeReferences: Grabowski, G.A., Leslie, N., Wenstrup, R., Enzyme therapy for Gaucher disease: The first 5 years (1998) Blood Rev, 12, pp. 115-133;Zhao, H., Grabowski, G.A., Gaucher disease: Perspectives on a prototype lysosomal disease (2002) Cell Mol Life Sci, 59, pp. 694-707; 
Friedman, B., Vaddi, K., Preston, C., Mahon, E., Cataldo, J.R., McPherson, J.M., A comparison of the pharmacological properties of carbohydrate remodeled recombinant and placental-derived beta-glucocerebrosidase: Implications for clinical efficacy in treatment of Gaucher disease (1999) Blood, 93, pp. 2807-2816; 
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},
	month = {2005///},
	pages = {545 - 552},
	abstract = {Gaucher disease (GD) is caused by the decreased activity and/or stability of the lysosomal enzyme glucocerebrosidase (GCR). The available treatment consists in the intravenous administration of exogenous GCR, and is effective in reverting most of the symptoms. However, in terms of bone pathology, which is among the most disabling manifestations, a slow and incomplete response is observed, indicating that adjuvant therapies are necessary to consistently restore GCR activity in bone and accelerate regeneration. In this study, calcium alginate microspheres were analyzed as a vehicle for localized GCR delivery to bone. Results demonstrated that the entrapped enzyme retained full activity and exhibited a broader pH-dependent activity profile, compared to that of free-GCR, with improved stability at physiological pH. GCR release profile was established, and it was demonstrated that GCR could be released in a sustained manner. The biological behavior of the system was evaluated by analyzing the uptake of released GCR by GCR-deficient cells from GD patients, using different techniques: GCR activity measurements, radiolabeling, and cellulose acetate electrophoresis. Results demonstrated that GCR was internalized by cells significantly enhancing the residual enzymatic activity. To achieve an activity reconstitution level comparable to that obtained using free-GCR, only half of the dose was required with entrapped-GCR. {\textcopyright} 2005 Wiley Periodicals, Inc.},
	keywords = {Alginates, alginic acid, article, Bone, bone disease, Bone Regeneration, Calcium alginate, Calcium Compounds, catalysis, Cell culture, Cells, Cultured, controlled study, Drug Carriers, drug delivery system, enzyme activity, enzyme assay, enzyme replacement, Enzymes, Enzymes, Immobilized, fibroblast culture, Fibroblasts, Gaucher disease, Gaucher disease (GD), Glucocerebrosidase (GCR), Glucosylceramidase, Glucuronic Acid, Hexuronic Acids, human, human cell, Humans, iodine 125, Localized delivery, lysosome enzyme, lysosome storage disease, microsphere, Microspheres, Pathology, pH effects, physiology, recombinant enzyme, Therapeutic enzyme},
	isbn = {00219304 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-24044465170\&partnerID=40\&md5=bbcee8568e0c0223975853a8177439c8},
	author = {Barrias, C.C. and Lamghari, M. and Granja, P.L. and S{\'a} Miranda, M.C. and Barbosa, M.A.}
}
@article {2438,
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Wagner, C.D., Naumkin, A.V., Kraut-Vass, A., Alisson, J.W., Powell, C.J., Rumble Jr., J.R., (2003) NIST-X-ray Photoelectron Spectroscopy Database 20 Version 3.4, , http://srdata.nist.gov/xps/, National Institute of Standards and Technology, Gaithersburg, MD Available online at; 
Quan, D.T., Le Bloa, A., Habib, H., Bonnaud, O., Meinnel, J., Quemerais, A., Marchand, R., (1989) Rev. Phys. Appl., 24, p. 545; 
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Domard, A., (1997) Advances in Chitin Science, 2, p. 410. , in: A. Domard, G. Roberts and K. V{\r a}rum (Eds) Jacques Andr{\'e}, Lyon; 
Granja, P.L., Pouysegu, L., Deffieux, D., Daude, G., De Jeso, B., Labrugere, C., Baquey, C., Barbosa, M.A., (2001) J. Appl. Polym. Sci., 82, p. 3354; 
Roeges, N.P.G., (1994) A Guide to the Complete Interpretation of Infrared Spectra of Organic Structures, , Wiley, Chichester; 
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Roberts, G.A.F., (1992) Chitin Chemistry, , Macmillan, London; 
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Bueno, W.A., (1990) Manual De Espectroscopia Vibracional, , McGraw-Hill, S{\~a}o Paulo; 
Nyquist, R.A., Craver, C.D., (1997) The Coblentz Society Desk Book of Infrared Spectra, , The Coblentz Society, French Village, MO; 
Hirano, S., Tobetto, K., Noishiki, Y., (1981) J. Biomed. Mater. Res., 15, p. 903
},
	month = {2005///},
	pages = {1575 - 1593},
	abstract = {In the present work, the surface of chitosan membranes was modified using a phosphorylation method carried out at room temperature. Phosphorylation may be of particular interest in materials for orthopaedic applications, due to the cation-exchange properties of phosphate functionalities. Phosphate groups chelate calcium ions, thus inducing the deposition of an apatite-like layer known to improve the osteoconduction of polymer-based implants. Additionally, the negatively charged phosphate functionalities, together with the positively charged amine groups from chitosan, are expected to provide chitosan with an amphoteric character, which may be useful as a combinatorial therapeutic strategy, by simultaneously allowing the immobilization of signalling molecules like growth factors. Phosphorylation was carried out at room temperature using the H                        3 PO
                        4/Et
                        3 PO
                        4/P
                        2O
                        5/butanol method. Surface characterization was performed by XPS, ATR-FT-IR, and SEM. Cross-sections were analyzed by SEM fitted with EDS. The phosphate content increased with the reaction time, as shown by XPS and ATR-FT-IR, a P/N atomic ratio of 0.73 being obtained after 48 h of treatment. High-resolution XPS spectra regarding C
                        1s, O
                        1s, N
                        1s and P
                        2p are discussed. The introduction of a neutralization step led to a reduction of P content, which pointed out to the presence of phosphates ionically bound to protonated amines, in addition to phosphate esters. EDS analysis of cross-sections revealed a gradual P reduction up to 50\% towards the inner part of the membrane. {\textcopyright} VSP 2005.
},
	keywords = {Acetylation, amine, animal, Animals, Apatite, article, bone conduction, butanol, calcium ion, cation exchange, cephalopod, chelate, Chemical modification, chemistry, Chitin, chitosan, comparative study, controlled study, Decapodiformes, Fourier transform infrared spectroscopy, Fourier transform infrared spectroscopy (FT-IR), Growth factor, immobilization, Implants (surgical), infrared spectroscopy, isolation and purification, Microscopy, Electron, Scanning, molecular weight, organophosphate, phosphate, Phosphate groups, Phosphates, Phosphorylation, Phosphorylation method, Plastics applications, priority journal, reflectometry, room temperature, Scanning electron microscopy, SEM-EDS, signal transduction, spectrometry, Spectrometry, X-Ray Emission, Spectroscopy, Fourier Transform Infrared, Surface chemical reaction, Surface Properties, surface property, temperature, time, Time Factors, viscosity, X ray photoelectron spectroscopy, X-rayphotoelectron spectroscopy (XPS)},
	isbn = {09205063 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-33644875542\&partnerID=40\&md5=cb42a0fba6d2000d93b90af9724a5bc1},
	author = {Amaral, I.F. and Granja, P.L. and Barbosa, M.A.}
}
@article {2445,
	title = {Data parallel scheduling of operations in linear algebra on heterogeneous clusters},
	journal = {WSEAS Transactions on ComputersWSEAS Trans. Comput.},
	volume = {4},
	year = {2005},
	note = {Export Date: 21 November 2012Source: ScopusLanguage of Original Document: EnglishCorrespondence Address: Morais, C.; Instituto Polit{\'e}cnico de Bragan{\c c}a, Bragan{\c c}a, Portugal; email: celmorais@ipb.ptReferences: Amoura, A.K., Bampis, E., K{\"o}nig, J.-C., Scheduling algorithms for parallel gaussian elimination with communication costs (1998) IEEE Transactions on Parallel and Distributed Systems, 9 (7), pp. 679-686. , July;Bal, H., Haines, M., Approaches for integrating task and data parallelism (1998) IEEE Concurrency, 6 (3), pp. 74-84; 
Barbosa, J., Tavares, J., Padilha, A., A group block distribution strategy for a heterogeneous machine (2002) Applied Informatics, pp. 378-383. , M. H. Hamza, editor. IASTED, ACTA Press, February; 
Barbosa, J., Tavares, J., Padilha, A.J., Linear algebra algorithms in a heterogeneous cluster of personal computers (2000) Proceedings of 9th Heterogeneous Computing Workshop, pp. 147-159. , IEEE CS Press, May; 
Biazewicz, J., Dell{\textquoteright}Olmo, P., Drozdowski, M., Maczka, P., Scheduling multiprocessor tasks on parallel processors with limited availability (2003) European Journal of Operational Research, 149, pp. 377-389; 
Boudet, V., Rastello, F., Robert, Y., A proposal for a heterogeneous cluster ScaLAPACK(dense linear solvers) (1999) Proceedings of PDPTA, , CSREA Press; 
Boudet, V., Robert, Y., Scheduling heuristics for heterogeneous processors (2001) Proceedings of the International Conference on Parallel and Distributed Processing Techniques End Applications (PDPTA 2001), pp. 2109-2115. , Arabnia HR, editor, June; 
Boulet, P., Dongarra, J., Rastello, F., Robert, Y., Vivien, F., Algorithmic issues on heterogeneous computing platforms (1999) Parallel Processing Letters, 9 (2), pp. 197-213; 
Braun, T., Siegel, H., Beck, N., B{\~o}l{\~o}ni, L., Maheswaran, M., Reuther, A., Robertson, J., Yao, B., A comparison of eleven static heuristics for mapping a class of independent tasks onto heterogeneous distributed computing systems (2001) Parallel and Distributed Computing, 61, pp. 810-837; 
Choi, J., Dongarra, J., Ostrouchov, L.S., Petitet, A.P., Walker, D.W., Whaley, R.C., The design and implementation of the ScaLAPACK LU, QR, and CHOLESKY factorization routines (1996) Scientific Programming, 5, pp. 173-184; 
Dongarra, J., Walker, D., The design of linear algebra libraries for high performance computers (1993), Technical Report LAPACK Working Note 58, University of Tennessee, Knoxville, JuneGarey, M., Johnson, D., (1979) Computers and Intractability, A Guide to the Theory of NP-Completeness, , W.H. Freeman; 
Hopper, E., Turton, B.C.H., An empirical investigation of meta-heuristic and heuristic algorithms for a 2d packing problem (2001) European Journal of Operational Research, 128, pp. 34-57; 
Jansen, K., Scheduling malleable parallel tasks: An asymptotic fully polynomial time approximation scheme (2004) Algorithmica, 39, pp. 59-81; 
Kwok, Y.-K., Parallel program execution on a heterogeneous pc cluster using task duplication (2000) Proceedings of 9th Heterogeneous Computing Workshop, pp. 364-374. , IEEE CS Press, May; 
Lep{\`e}re, R., Mouni{\'e}, G., Trystram, D., An approximation algorithm for scheduling trees of malleable tasks (2002) European Journal of Operational Research, (142), pp. 242-249; 
Oh, H., Ha, S., A static scheduling heuristic for heterogeneous processors (1996) Proceedings of Europar{\textquoteright}96, 1123. , Springer Verlag, August; 
Oh-Heum, Chwa, K.-Y., Scheduling parallel tasks with individual deadlines (1999) Theoretical Computer Science, 215, pp. 209-223; 
Ramaswamy, S., Sapatnekar, S., Banerjee, P., A framework for exploiting task and data parallelism on distributed memory multicomputers (1997) IEEE Transactions on Parallel and Distributed Systems, 8 (11), pp. 1098-1116. , November; 
Sarkar, V., (1989) Partitionning and Scheduling Parallel Programs for Execution on Multiprocessors, , MIT Press, Cambridge MA; 
Shirazi, B., Wang, M., Pathak, G., Analysis and evaluation of heuristic methods for static task scheduling (1990) Journal of Parallel and Distributing Computing, 10, pp. 222-232; 
Sih, G.C., Lee, E.A., A compile-time scheduling heuristic for interconnection-constrained heterogeneous processor architectures (1993) IEEE Transactions Os Parallel and Distributed Systems, 4 (2), pp. 175-187; 
Sinnen, O., Sousa, L., Comparison of contention aware list scheduling heuristics for cluster computing (2001) Workshop on Scheduling and Resource Management for Cluster Computing (ICPP), pp. 382-387. , IEEE CS Press, September; 
Topcuoglu, H., Hariri, S., Wu, M.-Y., Task scheduling algorithms for heterogeneous processors (1999) 8th Heterogeneous Computing Workshop, , IEEE CS Press; 
Topcuoglu, H., Hariri, S., Wu, M.-Y., Performance-effective and low-complexity task scheduling for heterogeneous computing (2002) IEEE Transactions on Parallel and Distributed Systems, 13 (3), pp. 260-274. , March; 
Trystram, D., Scheduling parallel applications using malleable tasks on clusters (2001) 15th International Conference on Parallel and Distributed Processing Symposium
},
	month = {2005///},
	pages = {1440 - 1448},
	abstract = {The aim of data and task parallel scheduling for dense linear algebra kernels is to minimize the processing time of an application composed by several linear algebra kernels. The scheduling strategy presented here combines the task parallelism used when scheduling independent tasks and the data parallelism used for linear algebra kernels. This problem has been studied for scheduling independent tasks on homogeneous machines. Here it is proposed a methodology for heterogeneous clusters and it is shown that significant improvements can be achieved with this strategy.},
	keywords = {Computational complexity, Computer simulation, Heterogeneous clusters, Linear algebra, Mathematical models, Optimization, Parallel algorithms, Parallel processing systems, Parallel tasks, Static scheduling},
	isbn = {11092750 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-24644509861\&partnerID=40\&md5=d5dd6aa387a7cabccd8935372bdb5a12},
	author = {Morais, C. and Barbosa, J. and Tadeu, P.}
}
@book {2426,
	title = {Effect of calcium phosphate addition to alginate microspheres: modulation of enzyme release kinetics and improvement of cell adhesion},
	series = {Key Engineering MaterialsKey Eng Mat},
	volume = {284-286},
	year = {2005},
	note = {Cited By (since 1996): 4Export Date: 21 November 2012Source: ScopusCODEN: KEMAELanguage of Original Document: EnglishCorrespondence Address: Barrias, C.C.; INEB - Institute de Engenharia Biom{\'e}dica, Laborat{\'o}rio de Biomaterials, R. Campo Alegre 823, 4150-180 Porto, Portugal; email: ccbarrias@ineb.up.ptReferences: Graopwski, G.A., Leslie, N., Wenstrup, R., (1998) Blood Rev, 12, p. 115;Rowley, J.A., Madlambayan, G., Mooney, D.J., (1999) Biomaterials, 20, p. 45; 
Dalby, M.J., Di Silvio, L., Harper, E.J., Bonfield, W., (2002) Biomaterials, 23, p. 569
},
	month = {2005///},
	pages = {689 - 692},
	abstract = {In this study, the addition of calcium phosphate powders to an alginate matrix was evaluated as a strategy to modulate enzyme release-kinetics from alginate microspheres and, simultaneously, to improve cell adhesion to the polymer. Pre-adsorption of the enzyme to the ceramic powders resulted in a more adequate release pattern. The ratio of ceramic-to-polymer had a pronounced effect on osteoblast adhesion to microspheres. Cells were only able to spread on microspheres with the highest percentage of ceramic (0.4 w/w using a 1.5\% w/v alginate solution).},
	keywords = {Alginate, Bioceramics, calcium phosphate, Calcium titanium phosphate, cell adhesion, Enzyme kinetics, Enzyme release, hydroxyapatite, Microspheres, Osteoblasts},
	isbn = {10139826 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-20744433251\&partnerID=40\&md5=30ce8fc67d1e3e37074cc056f650b798},
	author = {Barrias, C.C. and Ribeiro, C.C. and Rodrigues, D. and Miranda, M.C.S. and Barbosa, M.A.}
}
@article {2441,
	title = {Improving the adhesion of poly(ethylene terephthalate) fibers to poly(hydroxyethyl methacrylate) hydrogels by ozone treatment: Surface characterization and pull-out tests},
	journal = {PolymerPolymer},
	volume = {46},
	year = {2005},
	note = {Cited By (since 1996): 6Export Date: 21 November 2012Source: ScopusCODEN: POLMAdoi: 10.1016/j.polymer.2005.08.033Language of Original Document: EnglishCorrespondence Address: Ferreira, L.; Instituto de Engenharia Biom{\'e}dica, Laborat{\'o}rio de Biomateriais, Rua do Campo Alegre, 823, 4150-180 Porto, Portugal; email: lino@mit.eduReferences: Hart, B.L., Deyo, R.A., Cherkin, D.C., (1995) Spine, 20, pp. 11-19;Bao, Q.-B., McCullen, G.M., Higham, P.A., Dumbleton, J.H., Yuan, H.A., (1996) Biomaterials, 17, pp. 1157-1167; 
Martz, E.O., Goel, V.K., Pope, M.H., Park, J.B., (1997) J Biomed Mater Res (Appl Biomater), 38, pp. 267-288; 
Strobel, M., Walzak, M.J., Hill, J.M., Lin, A., Karbashewski, E., Lyons, C.S., (1995) J Adhes Sci Technol, 9 (3), pp. 365-383; 
Le, Q.T., Pireaux, J.J., Caudano, R., (1997) J Adhes Sci Technol, 11, pp. 735-751; 
O{\textquoteright}Hare, L.-A., Smith, J.A., Leadley, S.R., Parbhoo, B., Goodwin, A.J., Watts, J.F., (2002) Surf Interface Anal, 33, pp. 617-625; 
Walzak, M.J., Flynn, S., Foerch, R., Hil, J.M., Karbashewski, E., Lin, A., (1995) J Adhes Sci Technol, 9, pp. 1229-1248; 
Hill, J.M., Karbashewski, E., Lin, A., Strobel, M., Walzak, M.J., (1995) J Adhes Sci Technol, 9 (12), pp. 1575-1591; 
Blais, P., Day, M., Wiles, D.M., (1973) J Appl Polym Sci, 17, pp. 1895-1907; 
Day, M., Wiles, D.M., (1972) J Appl Polym Sci, 16, pp. 175-189; 
Nissen, K.E., Stevens, M.G., Stuart, B.H., Baker, A.T., (2001) J Polym Sci, Part B: Polym Phys, 39, pp. 623-633; 
Chen, W., McCarthy, T.J., (1998) Macromolecules, 31, pp. 3648-3655; 
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Hebeish, A., Shalaby, S.E., Bayazeed, A.M., (1981) J Appl Polym Sci, 26, pp. 3253-3269; 
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Rule, M., Physical constants of poly(oxyethylene-oxyterephthaloyl) (poly(ethylene terephthalate)) (1999) Polymer Handbook, pp. V/113-V/118. , J. Brandrup E.H. Immergut E.A. Grulke Wiley New York; 
Seah, M.P., Dench, W.A., (1979) Surf Interface Anal, 1, pp. 2-11; 
Strobel, M., Lyons, C., Strobel, J.M., Kapaun, R.S., (1992) J Adhes Sci Technol, 6 (4), pp. 429-443; 
Harrick, N.J., (1979) Internal Reflection Spectroscopy, , 2nd ed Wiley New York; 
Andrade, J.D., Smith, L.M., Gregonis, D.E., (1985) The Contact Angle and Interface Energetics, , Plenum press New York; 
Peeling, J., Clark, D.T., (1983) J Polym Sci: Polym Chem Ed, 21, pp. 2047-2055; 
Peeling, J., Courval, G., Jazzar, M.S., (1984) J Polym Sci: Polym Chem Ed, 22, pp. 419-428; 
Razumovskii, S.D., Kefeli, A.A., Zaikov, G.E., (1971) Eur Polym J, 7, pp. 275-285; 
Wang, Y., Lehmann, S., (1999) Appl Spectrosc, 53, pp. 914-918; 
Liang, C.Y., Krimm, S., (1959) J Mol Spectrosc, 3, pp. 554-574; 
Pavia, D.L., Lampman, G.M., Kriz, G.S., (1996) Introduction to Spectroscopy, , 2nd ed Harcourt Brace College Publishers New York; 
Carlsson, D.J., Wiles, D.M., (1969) Macromolecules, 2 (6), pp. 597-606; 
Socrates, G., (2001) Infrared and Raman Characteristic Group Frequencies: Tables and Charts, , 3rd ed Wiley New York; 
Rabek, J.F., Lucki, J., R{\r a}nby, Y., Watanabe, Y., Qu, B.J., (1988) Photoozination of Polypropylene, , American Chemical Society Washington, DC; 
Ton-That, C., Teare, D.O.H., Campbell, P.A., Bradley, R.H., (1999) Surf Sci, 433-435, pp. 278-282; 
Tanaka, K., Minoshima, K., Grela, W., Komai, K., (2002) Compos Sci Technol, 62, pp. 2169-2177; 
Sadiku, E.R., Sanderson, R.D., (2001) Macromol Mater Eng, 286, pp. 535-545; 
Pisanova, E., Zhandarov, S., (2001) J Adhes, 75, pp. 89-127; 
Owens, D.K., (1975) J Appl Polym Sci, 19, pp. 3315-3326; 
Briggs, D., Rance, D.G., Kendall, C.R., Blythe, A.R., (1980) Polymer, 21, pp. 895-900; 
Fu, S.-Y., Yue, C.-Y., Hu, X., Mai, Y.-W., (2000) Compos Sci Technol, 60, pp. 569-579
},
	month = {2005///},
	pages = {9840 - 9850},
	abstract = {This work reports a methodology to improve the adhesion between poly(ethylene terephthalate) (PET) fibers and poly(hydroxyethyl methacrylate) (pHEMA) hydrogels by treating PET with ozone. The surface chemistry of PET was examined by water contact angle measurements, X-ray photoelectron spectroscopy (XPS), infrared reflection absorption spectroscopy (IRAS) and attenuated total reflectance infrared spectroscopy (ATR-IR) yielding information about the chemical functionalities at depths upon 0.6 μm. Ozone treatment introduces several polar groups in the surface of PET through oxidation and chain scission resulting in increased wettability. These groups include mostly carboxylic and anhydride groups and in small extent hydroxyl groups. Atomic force microscopy (AFM) analysis shows that the surface of ozone-treated PET films is fully covered with spherical particles that are removed after washing the film with water. During the washing step carboxylic functionalities were removed preferentially, as demonstrated by XPS and IR analysis. According to pull-out tests, PET monofilaments and bundles treated by ozone had a higher adhesion to pHEMA hydrogels than untreated ones. The apparent interfacial shear strength is 65\% higher on pHEMA hydrogel containing an ozonated than an untreated PET monofilament. In addition, the force to pull-out an ozone-treated PET bundle from pHEMA hydrogel is ca. 81\% higher than the one observed for the untreated bundle. {\textcopyright} 2005 Elsevier Ltd. All rights reserved.},
	keywords = {Adhesion, Atomic force microscopy, Contact angle, hydrogel, Hydrogels, infrared spectroscopy, Oxidation, Ozone, ozone treatment, Ozone treatments, Poly(ethylene terephthalate), polyethylene terephthalate fiber, Polyethylene terephthalates, Polymethyl methacrylates, pull-out, Pull-out tests, Surface characterization, Surface chemistry, surface property, X ray photoelectron spectroscopy},
	isbn = {00323861 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-26844540116\&partnerID=40\&md5=bebe6186e9e73c41648eedee7d5c0f61},
	author = {Ferreira, L. and Evangelista, M.B. and Martins, M.C.L. and Granja, P.L. and Esteves, J.L. and Barbosa, M.A.}
}
@book {2428,
	title = {In vitro analysis of protein adhesion to phase pure hydroxyapatite and silicon substituted hydroxyapatite},
	series = {Key Engineering MaterialsKey Eng Mat},
	volume = {284-286},
	year = {2005},
	note = {Cited By (since 1996): 8Export Date: 21 November 2012Source: ScopusCODEN: KEMAELanguage of Original Document: EnglishCorrespondence Address: Botelho, C.M.; INEB - Instituto de Engenharia Biom{\'e}dica, Laborat{\'o}rio de Biomateriais, Rua do Campo Alegre, 823, 4150-180 Porto, Portugal; email: ccunha@fe.up.ptReferences: Patel et al, J. of Mat. Sci.: Mat. in Med., 13 (2002) p. 1199Gibson, I.R., (1999) Bioceramics, 12, p. 191;Botelho, C.M., in Key (2003) Engineering Materials, 254-256, pp. 841-844; 
Porter, (2004) Biomaterials, 5, pp. 3303-3314; 
Takami et al, in J. Biomed Mater. Res., 40, (1998), p. 24-30Kandori, (2004) in J. Colloid and Interface Science, 273, pp. 406-413; 
Vermeer, (2001) Biochimicaet Biophysica Acta, 1526, pp. 61-69; 
Kikuchi, (2001) Biomaterials, 22, pp. 1705-1711; 
Jha, L.J., Worldwide patent, PCT/GB97/02325 and US Patent Serial (1999), No 09/147773Gibson, I.R., (1999) J. Biomed. Mat. Res, 44, p. 422; 
Botelho, C.M., (2002) J. Mater. Sci:Mater. Med, 13, pp. 1123-1127; 
Muller, (1999) Macromol. Rapid Commun, 20, pp. 607-611; 
Veerman, (1987) Biomaterials, 8, pp. 442-448; 
Haynes, in Colloids and Surfaces B (1994) Biointerfaces, 2, pp. 517-566; 
Reffit, D.M., (2003) Bone, 32, p. 127
},
	month = {2005///},
	pages = {461 - 464},
	abstract = {The adhesion of bovine collagen type I, bovine serum albumin, bovine IgG, 1 \% and 10 \% (v/v) human serum to hydroxyapatite (HA), silicon-substituted hydroxyapatite (Si-HA) and tissue culture plastic were studied. The materials were incubated at 37{\textdegree}C for 30 minutes, after which the protein solution was removed and analyzed. The adsorbed protein was evaluated by electrophoresis and immunoassay after extraction from the materials. The degree of adhesion was higher for collagen, followed by IgG and albumin on all materials. However there was no difference in the amount of collagen adsorbed onto the surface of each material and this was also the finding with albumin and IgG. These results suggest that the increased bioactivity seen with Si-HA is not due to the degree of protein adhesion, but may possibly be due to changes in the conformation of the bound proteins.},
	keywords = {Adsorption, Bioactivity, Bovine collagen type I, Bovine collagens, Bovine serum proteins, Collagen, Human serum proteins, hydroxyapatite, Immunoglobulin G (IgG), immunology, Silicon-substituted hydroxyapatite, Substitution reactions, Tissue culture},
	isbn = {10139826 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-26844513571\&partnerID=40\&md5=ed134d3a2ccf1a8799bbb487ac863072},
	author = {Botelho, C.M. and Brooks, R.A. and Kawai, T. and Ogata, S. and Ohtsuki, C. and Best, S.M. and Lopes, M.A. and Santos, J.D. and Rushton, N. and Bonfield, W.}
}
@article {2450,
	title = {In vitro degradation behavior of a novel bioresorbable composite material based on PLA and a soluble CaP glass},
	journal = {Acta BiomaterialiaActa Biomater.},
	volume = {1},
	year = {2005},
	note = {Cited By (since 1996): 24Export Date: 21 November 2012Source: Scopusdoi: 10.1016/j.actbio.2005.03.004PubMed ID: 16701822Language of Original Document: EnglishCorrespondence Address: Ginebra, M.P.; Reference Centre for Bioengineering of Catalonia (CREBEC), Department of Materials Science, Universitat Polit{\`e}cnica de Catalunya, Av. Diagonal 647, 08028 Barcelona, Spain; email: maria.pau.ginebra@upc.esChemicals/CAS: calcium phosphate, 10103-46-5, 13767-12-9, 14358-97-5, 7758-87-4; polylactic acid, 26100-51-6; Bone Substitutes; calcium phosphate, 10103-46-5; Calcium Phosphates; Lactic Acid, 50-21-5; poly(lactic acid), 26100-51-6; PolymersManufacturers: Purac, NetherlandsReferences: Rokkanen, P., Bioabsorbable fixation in orthopaedic surgery and traumatology (2000) Biomaterials, 21, pp. 2607-2613;Middleton, J.C., Tipton, A.J., Synthetic biodegradable polymers as orthopedic devices (2000) Biomaterials, 21 (23), pp. 2335-2346; 
Adriano, K.P., Daniels, A.U., Smutz, W.P., Wyatt, R.W.B., Heller, J., Preliminary biocompatibility screening of several biodegradable phosphate fiber reinforced polymers (1993) J Appl Biomater, 4, pp. 1-12; 
Nazhat, S.N., Kellomaki, M., Tormala, P., Tanner, K.E., Bonfield, W., Dynamic mechanical characterization of biodegradable composites of hydroxyapatite and polylactides (2001) J Biomed Mater Res, 58 (4), pp. 335-343; 
Dupraz, A.M.P., de Wijn, J.R., v.d. Meer, S.A.T., de Groot, K., Characterization of silane-treated hydroxyapatite powders for use as filler in biodegradable composites (1996) J Biomed Mater Res, 30, pp. 231-238; 
Kasuga, T., Maeda, H., Kato, K., Nogami, M., Hata, K.-I., Ueda, M., Preparation of poly (lactic acid) composites containing calcium carbonate (vaterite) (2003) Biomaterials, 24, pp. 3247-3253; 
Ylinen, P., Suuronen, R., Taurio, R., Tormala, P., Rokkanen, P., Use of hydroxylapatite/polymer-composite in facial bone augmentation. An experimental study (2002) Int J Oral Maxillofac Surg, 31 (4), pp. 405-409; 
Lu, H.H., El-Amin, S., Scott, K., Laurencin, C., Three-dimensional, bioactive, biodegradable, polymer-bioactive glass composite scaffolds with improved mechanical properties support collagen synthesis and mineralization of human osteoblast-like cells in vitro (2003) J Biomed Mater Res, 64 A, pp. 465-474; 
Navarro, M., Ginebra, M.P., Planell, J.A., Zeppetelli, S., Ambrosio, L., Development and cell response of a new biodegradable composite scaffold for guided bone regeneration (2004) J Mater Sci-Mater Med, 15 (4), pp. 419-422; 
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},
	month = {2005///},
	pages = {411 - 419},
	abstract = {Poly(α-hydroxy acids), and in particular polylactic acid (PLA), are nowadays amongst the most used bioabsorbable materials. However, this polymer may not meet some application requirements due to inadequate mechanical properties and or its degradation characteristics. A possible strategy to tackle this problem is the incorporation of an inorganic phase into the polymeric matrix. In this work a new fully biodegradable composite material made with PLA and calcium phosphate soluble glass particles has been developed. The behaviour of the PLA/ glass composite has been analysed during its degradation in simulated physiological conditions by means of weight loss, molecular weight and thermal properties analysis and electron microscopy observation. The results showed that the incorporation of phosphate glass particles into the polymer significantly accelerated the degradation of the PLA and induced the formation of calcium phosphate precipitates at the composite surface. {\textcopyright} 2005 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.},
	keywords = {Absorbable Implants, Absorption, article, biodegradability, Biodegradable composite, Biomimetic materials, Body fluids, Bone Regeneration, Bone Substitutes, calcium phosphate, Calcium phosphates, composite material, Degradation, electron microscopy, glass, In vitro degradation, in vitro study, Lactic Acid, materials testing, molecular weight, observation, Phosphate glass, polylactic acid, Polymers, precipitation, priority journal, reaction analysis, simulation, Solubility, Surface Properties, surface property, temperature, weight reduction},
	isbn = {17427061 (ISSN)},
	author = {Navarro, M. and Ginebra, M.P. and Planell, J.A. and Barrias, C.C. and Barbosa, M.A.}
}
@article {2455,
	title = {Inflammatory cell recruitment and adhesion to methyl-terminated self-assembled monolayers: Effect of implantation time},
	journal = {Microscopy Research and TechniqueMicrosc. Res. Tech.},
	volume = {66},
	year = {2005},
	note = {Cited By (since 1996): 4Export Date: 21 November 2012Source: ScopusCODEN: MRTEEdoi: 10.1002/jemt.20141PubMed ID: 15816035Language of Original Document: EnglishCorrespondence Address: Barbosa, J.N.; INEB, Inst. de Engenharia Biom{\'e}dica, Laborat{\'o}rio de Biomateriais, Rua do Campo Alegre 823, 4150-180 Porto, Portugal; email: judite@ibmc.up.ptChemicals/CAS: gold, 7440-57-5; thiol derivative, 13940-21-1; Coated Materials, Biocompatible; Gold, 7440-57-5References: Anderson, J.M., Biological responses to materials (2001) Annu Rev Mater Res, 31, pp. 81-110;Babensee, J.E., Anderson, J.M., Mclntire, L.V., Mikos, A.G., Host response to tissue engineered devices (1998) Adv Drug Deliv Rev, 33, pp. 111-139; 
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},
	month = {2005///},
	pages = {37 - 42},
	abstract = {The contribution of methyl groups in implant-triggered inflammation was investigated in vivo using self-assembled monolayers (SAMs) of alkanethiols on gold. The CH                        3-coated implants were inserted in an air-pouch cavity induced in BALB/c mice. The in situ inflammatory response was monitored 24, 48, and 72 hours later. Inflammatory cells recovered from the air pouches were counted and observed by light microscopy. The cellularity of the implant surfaces was defined by scanning electron microscopy (SEM). In comparison with gold implants, the CH
                        3-coated SAMs recruited a significantly higher number of inflammatory cells. Polymorphonuclear leukocytes (PMN) were more numerous than mononuclear cells (Mo) in the exudates recovered from the air pouches with CH
                        3-coated SAMs. The opposite PMN/Mo proportion was observed in air pouches of the two control groups (mice receiving gold implants or sham-operated animals). A low density of adherent cells was seen on CH 
                        3-coated implants, with no significant quantitative differences during the time course of the study. In contrast, the gold-coated surfaces were covered with numerous cells during all of the 3 days of the inflammation. In conclusion, implants with CH
                        3 surfaces are likely to induce PMN-dominated local acute inflammation but these surfaces are not associated with a significant adherence of leukocytes to the implant. {\textcopyright} 2005 Wiley-Liss, Inc.
},
	keywords = {Air-pouch model, animal experiment, animal model, Animalia, Animals, article, biomaterial, cell adhesion, Cell Count, cell density, cell surface, Cell-surface interactions, Coated Materials, Biocompatible, Contact angle, controlled study, gold, implantation, Implants, Experimental, Inflammation, inflammatory cell, Inflammatory responses, leukocyte adherence, Leukocytes, male, materials testing, methyl group, Mice, Microscopy, Electron, Scanning, mononuclear cell, mouse, neutrophil, nonhuman, priority journal, Scanning electron microscopy, Self-assembled monolayers, Surface Properties, thiol derivative, Time Factors},
	isbn = {1059910X (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-17144372986\&partnerID=40\&md5=1d2d00c4efe22d960872f5e785c7d4c7},
	author = {Barbosa, J.N. and Barbosa, M.A. and {\'A}guas, A.P.}
}
@article {2452,
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},
	month = {2005///},
	pages = {31 - 39},
	abstract = {The proliferation of cultured human bone marrow stromal cells (HBMSC) on regenerated cellulose hydrogels was assessed. Regenerated cellulose hydrogels showed good rates of HBMSC proliferation, the cells exhibiting a flattened morphology, and after 22 days in culture, the cells had homogeneously colonized the surface of the materials. Moreover, since the early days in culture, between the surface of the materials and attached cells a continuous granulated hydroxyapatite layer was formed. It has been previously demonstrated in vitro, but without cells, that these materials did not mineralize. Hence, it seems that HBMSC promoted the mineralization of the surface.},
	keywords = {article, bone marrow cell, Bone Marrow Cells, bone mineralization, Calcification, Physiologic, Calcium phosphates, Cell culture, cell proliferation, cell regeneration, Cells, Cultured, Cellulose, hematopoietic stem cell, human, Human bone marrow stromal cells, human cell, Humans, hydrogel, Hydrogels, hydroxyapatite, in vitro study, mineralization, Regenerated cellulose hydrogels, Regeneration, Spectroscopy, Fourier Transform Infrared, stroma cell, Stromal Cells, Time series analysis},
	isbn = {14732262 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-28444434484\&partnerID=40\&md5=336e1872af4f9b4274cda0b46e091486},
	author = {Granja, P.L. and De J{\'e}so, B. and Bareille, R. and Rouais, F. and Baquey, C. and Barbosa, M.A.}
}
@article {2454,
	title = {Polysaccharides as scaffolds for bone regeneration},
	journal = {ITBM-RBMITBM-RBM},
	volume = {26},
	year = {2005},
	note = {Cited By (since 1996): 22Export Date: 21 November 2012Source: ScopusCODEN: ITBMFdoi: 10.1016/j.rbmret.2005.04.006Language of Original Document: EnglishCorrespondence Address: Barbosa, M.A.; INEB, Instituto de Engenharia Biom{\'e}dica, Laborat{\'o}rio de Biomateriais, Rua do Campo Alegre, 823, 4150-180 Porto, Portugal; email: mbarbosa@ibmc.up.ptChemicals/CAS: alginic acid, 28961-37-7, 29894-36-8, 9005-32-7, 9005-38-3; arginylglycylaspartic acid, 99896-85-2; cellulose, 61991-22-8, 68073-05-2, 9004-34-6; chitosan, 9012-76-4References: Shogren, R.L., Bagley, E.B., Natural polymers as advanced materials: Some research needs and directions (1999) Biopolymers. Utilizing Nature{\textquoteright}s Advanced Materials, ACS Symposium Series 723, pp. 2-11. , S.H. Iman R.V. Greene B.R. Zaidi Oxford University Press Cary, USA;Kaplan, D.L., Introduction to polymers from renewable resources (1998) Biopolymers from Renewable Resources, pp. 1-29. , D.L. Kaplan Springer Verlag Berlin, Germany; 
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},
	month = {2005///},
	pages = {212 - 217},
	abstract = {This review is concerned with the use of polysaccharides for bone regeneration. Cellulose, alginate and chitosan have been chosen as examples of the formidable potential of this class of materials. Many others could be cited but our experience and research interests dictated the choice. As in many areas of research we know how they started but we cannot see how and if they will end. Modification of cellulose was our entrance to the world of polysaccharides and a lot of what we know we owe to Charles Baquey, to whom we would like to express our immense gratitude. This chapter is dedicated to him, for his cooperation, unlimited enthusiasm and friendship. {\textcopyright} 2005 Elsevier SAS. All rights reserved.},
	keywords = {Alginate, alginic acid, Amino Acid Sequence, arginylglycylaspartic acid, biomaterial, biotechnology, bone cell, bone prosthesis, Bone Regeneration, Cellulose, chitosan, enzyme degradation, polysaccharide, Polysaccharides, review, Tissue engineering},
	isbn = {12979562 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-20744434609\&partnerID=40\&md5=43d83907f18b3e44035dfe14ff13a24f},
	author = {Barbosa, M.A. and Granja, P.L. and Barrias, C.C. and Amaral, I.F.}
}
@article {2460,
	title = {Proliferation, activity, and osteogenic differentiation of bone marrow stromal cells cultured on calcium titanium phosphate microspheres},
	journal = {Journal of Biomedical Materials Research - Part AJ. Biomed. Mater. Res. Part A},
	volume = {72},
	year = {2005},
	note = {Cited By (since 1996): 34Export Date: 21 November 2012Source: ScopusCODEN: JBMRCdoi: 10.1002/jbm.a.30217PubMed ID: 15543603Language of Original Document: EnglishCorrespondence Address: Barrias, C.C.; INEB, Instituto de Engenharia Biomedica, Laboratorio de Biomateriais, Rua do Campo Alegre, 823, 4150-180 Porto, Portugal; email: ccbarrias@ineb.up.ptChemicals/CAS: alkaline phosphatase, 9001-78-9; calcium phosphate, 10103-46-5, 13767-12-9, 14358-97-5, 7758-87-4; osteocalcin, 136461-80-8; titanium, 7440-32-6; Alkaline Phosphatase, EC 3.1.3.1; Calcium, 7440-70-2; Osteocalcin, 104982-03-8; titanium phosphate, 17017-57-1; Titanium, 7440-32-6References: Senuma, Y., Franceschin, S., Hilborn, J.G., Tissieres, P., Bisson, I., Frey, P., Bioresorbable microspheres by spinning disk atomization as injectable cell carrier: From preparation to in vitro evaluation (2000) Biomaterials, 21 (11), pp. 1135-1144;Hsu, F.Y., Chueh, S.C., Wang, Y.J., Microspheres of hydroxyapatite/ reconstituted collagen as supports for osteoblast cell growth (1999) Biomaterials, 20 (20), pp. 1931-1936; 
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},
	month = {2005///},
	pages = {57 - 66},
	abstract = {In this study, the behavior of bone marrow stromal cells cultured on calcium titanium phosphate (CTP) microspheres was analyzed. Cell adhesion and proliferation were estimated by the neutral red assay and by total DNA quantification. Morphology and deposition of extracellular matrix were assessed by confocal laser scanning microscopy and/or scanning electron microscopy. The expression of the osteoblastic phenotype was evaluated by monitoring alkaline phosphatase activity and osteocalcin secretion. Results revealed that cells were able to attach and spread on the surface of CTP microspheres, and gradually grow into nearly confluent monolayers. Moreover, cells were able to bridge adjacent microspheres forming microsphere-cell clusters. Cells produced an abundant amount of fibrillar extracellular matrix that covered the substrate surface. Alkaline phosphatase activity peaked around days 7-14 and then decreased until day 21. Cells secreted osteocalcin, with higher levels being detected at day 14 than at day 21. Taken together, these results suggest that CTP microspheres are appropriate scaffolds for the growth and differentiation of cells along the osteoblastic lineage. {\textcopyright} 2004 Wiley Periodicals, Inc.},
	keywords = {alkaline phosphatase, animal cell, Animals, article, Bioassay, Bone, bone marrow cell, Bone Marrow Cells, bone marrow stromal cell, Bone marrow stromal cells, Calcium, Calcium Compounds, calcium phosphate, Calcium titanium phosphate, cell adhesion, Cell culture, cell differentiation, cell growth, cell lineage, cell proliferation, cell structure, Confluent monolayers, confocal laser microscopy, Confocal laser scanning microscopy, controlled study, Deposition, DNA determination, enzyme activity, Enzyme kinetics, extracellular matrix, Microscopy, Electron, microsphere, Microspheres, nonhuman, osteoblast, osteocalcin, Osteogenesis, Osteogenic differentiation, phenotype, protein expression, protein secretion, rat, Rats, Scanning electron microscopy, Stromal Cells, surface property, Tissue culture, Tissue engineering, Titanium, unclassified drug},
	isbn = {00219304 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-10444223137\&partnerID=40\&md5=ab1b84ba6dd86274c0102567dffe1418},
	author = {Barrias, C.C. and Ribeiro, C.C. and Lamghari, M. and S{\'a} Miranda, C. and Barbosa, M.A.}
}
@article {2444,
	title = {Rat bone marrow stromal cell osteogenic differentiation and fibronectin adsorption on chitosan membranes: The effect of the degree of acetylation},
	journal = {Journal of Biomedical Materials Research - Part AJ. Biomed. Mater. Res. Part A},
	volume = {75},
	year = {2005},
	note = {Cited By (since 1996): 25Export Date: 21 November 2012Source: ScopusCODEN: JBMRCdoi: 10.1002/jbm.a.30436PubMed ID: 16092111Language of Original Document: EnglishCorrespondence Address: Amaral, I.F.; INEB-Instituto de Engenharia Biom{\'e}dica, Laborat{\'o}rio de Biomateriais, Rua do Campo Alegre, 823, 4150-180 Porto, Portugal; email: iamaral@ineb.up.ptChemicals/CAS: chitosan, 9012-76-4; fibronectin, 86088-83-7; polystyrene, 9003-53-6; Chitosan, 9012-76-4; Coated Materials, Biocompatible; FibronectinsReferences: VandeVord, P.J., Matthew, H.W.T., DeSilva, S.P., Mayton, L., Wu, B., Wooley, P.H., Evaluation of the biocompatibility of a chitosan scaffold in mice (2002) J Biomed Mater Res, 59 (3), pp. 585-590;Muzzarelli, R.A.A., Human enzymatic activities related to the therapeutic administration of chitin derivatives (1997) Cell Mol Life Sci, (53), pp. 131-140; 
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},
	month = {2005///},
	pages = {387 - 397},
	abstract = {Cell adhesion, migration, and proliferation of a few anchorage-dependent cells cultured on chitosan (Ch) matrices are influenced by the degree of N-acetylation (DA) of Ch. In the present work, we examined the influence of the DA on the attachment, spreading, proliferation, and osteogenic differentiation of rat bone marrow stromal cells (rBM-SCs). Ch membranes were characterized in terms of surface morphology, roughness, and wettability, and in terms of adsorption of an adhesive protein, fibronectin (Fn). Chs with DAs in the range of 4 to 49\% were used. Among the Ch samples, the DA of 4\% led to the highest Fn surface concentration, both from single protein solution and from diluted serum. Furthermore, the levels of Fn adsorbed from serum found for this DA were threefold higher than for the tissue culture polystyrene control, indicating that in the presence of competitive proteins Ch is more specific toward Fn adsorption than tissue culture polystyrene. rBMSCs cultured on Ch carrying a DA of 4\% were able to spread, proliferate, and differentiate, reaching a higher level of osteogenic differentiation than on the control, despite the lower cell attachment observed for all Ch samples. Because the Ch sample with a DA of 4\% showed the highest Fn adsorption from serum, we suggest that cell adhesion, spreading, and osteogenic differentiation of rBMSCs on Ch may be mediated by the adsorbed layer of Fn. {\textcopyright} 2005 Wiley Periodicals, Inc.},
	keywords = {Acetylation, Adhesion, Adsorption, animal cell, Animals, article, artificial membrane, binding affinity, binding competition, Bone, bone development, bone marrow cell, Bone Marrow Cells, Bone marrow stomal cells, Bone marrow stromal cells, cell adhesion, cell anchorage, Cell culture, cell differentiation, Cell membranes, cell migration, cell proliferation, Cell Shape, cell spreading, chitosan, Coated Materials, Biocompatible, controlled study, cytoskeleton, Degree of acetylation, Fibronectin, Fibronectins, male, materials testing, morphology, nonhuman, polystyrene, Proteins, rat, Rats, Rats, Wistar, roughness, stroma cell, Stromal Cells, Surface Properties, surface property, Tissue culture, wettability},
	isbn = {00219304 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-26844551535\&partnerID=40\&md5=fa91e3e29d946053ae7bb231b6a2640e},
	author = {Amaral, I.F. and Lamghari, M. and Sousa, S.R. and Sampaio, P. and Barbosa, M.A.}
}
@article {2443,
	title = {Recombinant glucocerebrosidase uptake by Gaucher disease human osteoblast culture model},
	journal = {Blood Cells, Molecules, and DiseasesBlood Cells Mol. Dis.},
	volume = {35},
	year = {2005},
	note = {Cited By (since 1996): 3Export Date: 21 November 2012Source: ScopusCODEN: BCMDFdoi: 10.1016/j.bcmd.2005.07.009PubMed ID: 16125984Language of Original Document: EnglishCorrespondence Address: Lamghari, M.; INEB-Instituto de Engenharia Biom{\'e}dica, Laborat{\'o}rio de Biomateriais, R. Campo Alegre 823, 4150-180 Porto, Portugal; email: lamghari@ineb.up.ptChemicals/CAS: conduritol b epoxide, 6090-95-5; imiglucerase, 154248-97-2; iodine 125, 14158-31-7, 22822-81-7; conduritol epoxide, 6090-95-5; Glucosylceramidase, EC 3.2.1.45; Inositol, 6917-35-7; Recombinant ProteinsTradenames: cerezyme, GenzymeManufacturers: GenzymeReferences: Beutler, E., Grabowski, G., Gaucher disease (1995) The Metabolic and Molecular Bases of Inherited Disease, 2, pp. 2641-2661. , C.R. Scriber A.L. Beaudet W.S. Sly 7th ed. McGraw-Hill New York, NY;Beutler, E., Enzyme replacement in Gaucher disease (2004) PLoS Med., 1 (2), p. 21; 
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},
	month = {2005///},
	pages = {348 - 354},
	abstract = {Bone lesions are a major cause of morbidity in Gaucher disease (GD) type I. Enzyme replacement therapy (ERT) has been successful in treating many symptoms of type I GD but skeletal response lags behind. Local exogenous glucocerebrosidase supplementation in bone lesions via a drug delivery system may overcome this limitation. Although local enzyme supplementation aims to target lipid-engorged macrophages (Gaucher Cells) in bone compartment, enzyme uptake by osteoblasts is not excluded. To investigate the ability of human osteoblasts to internalize recombinant glucocerebrosidase (rGCR), we have used an artificial GD human osteoblasts cell culture system. MG63 human osteoblasts were treated with conduritol B epoxide (CBE) to induce complete and prolonged inhibition of endogenous glucocerebrosidase activity of cells. rGCR uptake by glucocerebrosidase-inactivated osteoblasts was examined using                        125I-radiolabelling, Western blot analysis and measurement of glucocerebrosidase activity. Analysis of radiolabeled enzyme uptake by CBE treated osteoblasts showed 67.9\% of internalized protein in cell extract. Enzyme internalization was also observed by Western blot analysis where the amount of mature form of glucocerebrosidase protein recognized by the glucocerebrosidase antibody was increased following the administrations of rGCR. Moreover, enzymatic activity measurement showed 23.9\% of glucocerebrosidase activity of control cells. The rGCR internalization by MG63 osteoblast seems to be partially mediated by mannose receptors. These data provide evidence that MG63 human osteoblasts are able to internalize rGCR. {\textcopyright} 2005 Elsevier Inc. All rights reserved.
},
	keywords = {article, Cell culture, cell extract, Cells, Cultured, conduritol b epoxide, controlled study, drug activity, drug uptake, enzyme activity, enzyme antibody, Enzyme inhibition, Enzyme uptake, epoxide, Gaucher disease, Glucocerebrosidase, Glucosylceramidase, human, human cell, Humans, imiglucerase, Inositol, internalization, iodine 125, isotope labeling, mannose receptor, osteoblast, Osteoblasts, priority journal, Recombinant Proteins, unclassified drug, Western blotting},
	isbn = {10799796 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-27744461413\&partnerID=40\&md5=575b4d8cc3f6e5b8e846cf6de71852b3},
	author = {Lamghari, M. and Barrias, C.C. and S{\'a} Miranda, C. and Barbosa, M.A.}
}
@article {2431,
	title = {TiO                    2 type influences fibronectin adsorption
},
	journal = {Journal of Materials Science: Materials in MedicineJ. Mater. Sci. Mater. Med.},
	volume = {16},
	year = {2005},
	note = {Cited By (since 1996): 28Export Date: 21 November 2012Source: ScopusCODEN: JSMMEdoi: 10.1007/s10856-005-4725-4Language of Original Document: EnglishCorrespondence Address: Sousa, S.R.; INEB, Instituto de Engenharia Biom{\'e}dica, Lab. Biomateriais, R. do Campo Alegre, 823, 4150-180 Porto, Portugal; email: ssousa@ibmc.up.ptChemicals/CAS: fibronectin, 86088-83-7; titanium dioxide, 1317-70-0, 1317-80-2, 13463-67-7, 51745-87-0; titanium, 7440-32-6; hydrogen peroxide, 7722-84-1; iodine 125, 14158-31-7, 22822-81-7; Fibronectins; Solutions; titanium dioxide, 13463-67-7; Titanium, 7440-32-6References: Horbett, T.A., (1994) Colloids and Surfaces B: Biointerfaces, 2, p. 225;Amaral, I.F., Lamghari, M., Sousa, S.R., Sampaio, P., Barbosa, M.A., (2005) J Biomed Mater Res., 75 A, p. 387; 
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},
	month = {2005///},
	pages = {1173 - 1178},
	abstract = {Human fibronectin (FN) plays a key role in the biointegration of implants as the success depends on adsorption of proteins like FN [1]. Indeed FN can be an intermediary between the biomaterial surface and cells. The adsorption of human fibronectin (FN) on commercially pure titanium with a titanium oxide layer formed in a H                        2O
                        2 solution (TiO
                        2 cp) and TiO
                        2 sputtered on Si (TiO
                        2 sp) was studied. Adsorption isotherms and the work of adhesion were assessed by wettability studies, X-ray photoelectron spectroscopy (XPS), and by radiolabelling of FN with 
                        125I, 
                        125I-FN. Exchangeability of bound FN by free FN, was also evaluated by the radiolabelling technique. Contact angle determinations have shown that FN displays higher affinity for the TiO
                        2 cp surface than for the TiO
                        2 sp. As expected from the surface free energy values, the work of adhesion of FN is higher for the TiO
                        2 cp substrate, the more hydrophilic one, and lower for the TiO
                        2 sp substrate, the more hydrophobic one. The adsorption isotherms were evaluated by two different techniques: radiolabelling of FN (
                        125I-FN) and XPS. TiO
                        2 cp adsorbs more FN than the TiO
                        2 sp surfaces as shown by the radiolabelling data. FN molecules are also more strongly attached to the former surface as indicated by the work of adhesion and by the exchangeability studies. Results using 
                        125I-FN also suggests that FN adsorbs as a multilayer for FN concentrations in solution higher than 100 μg/mL. {\textcopyright} 2005 Springer Science + Business Media, Inc.
},
	keywords = {Adsorption, adsorption kinetics, article, binding affinity, Biointegration, Biomaterials, Cells, chemistry, conference paper, Contact angles, Fibronectin, Fibronectins, human, Human fibronectin (FN), Humans, hydrogen peroxide, hydrophilicity, hydrophobicity, Implants (surgical), iodine 125, isotherm, Isotherms, isotope labeling, physical chemistry, priority journal, protein binding, Proteins, Radiolabelling, solution and solubility, Solutions, surface property, Titanium, Titanium dioxide, wettability, X ray photoelectron spectroscopy},
	isbn = {09574530 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-29144439699\&partnerID=40\&md5=f98f8448d034d8f8627d752516e3afbd},
	author = {Sousa, S.R. and Moradas-Ferreira, P. and Barbosa, M.A.}
}
@article {2484,
	title = {Biocompatibility of chemoenzymatically derived dextran-acrylate hydrogels},
	journal = {Journal of Biomedical Materials Research - Part AJ. Biomed. Mater. Res. Part A},
	volume = {68},
	year = {2004},
	note = {Cited By (since 1996): 21Export Date: 21 November 2012Source: ScopusCODEN: JBMRCPubMed ID: 14762939Language of Original Document: EnglishCorrespondence Address: Dordick, J.S.; Department of Chemical Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180, United States; email: dordick@rpi.eduChemicals/CAS: acrylic acid, 10344-93-1, 79-10-7; dextran, 87915-38-6, 9014-78-2; Acrylates; Biocompatible Materials; Dextrans, 9004-54-0; Enzymes; HydrogelsReferences: Ferreira, L., Gil, M.H., Dordick, J.S., Enzymatic synthesis of dextran-containing hydrogels (2002) Biomaterials, 23, pp. 3957-3967;Peppas, N.A., Bures, P., Leobandung, W., Ichikawa, H., Hydrogels in pharmaceutical formulations (2000) Eur J Pharm Biopharm, 50, pp. 27-46; 
Park, K., Park, H., Biocompatibility issues of implantable drug delivery systems (1996) Pharm Res, 13 (12), pp. 1770-1776; 
Novick, S.J., Dordick, J.S., Preparation of active and stable biocatalytic hydrogels for use in selective transformation (1998) Chem Mater, 10 (4), pp. 955-958; 
Letourneur, D., Machy, D., Pell{\'e}, A., Marcon-Bachari, E., D{\'a}ngelo, G., Vogel, M., Chaubert, F., Michel, J.-B., Heparin and non-heparin-like dextrans differentially modulate endothelial cell proliferation: In vitro evaluation with soluble and crosslinked polysaccharide matrices (2002) J Biomed Mater Res, 60, pp. 94-100; 
{\"O}sterberg, E., Bergstr{\"o}m, K., Holmberg, K., Schuman, T.P., Riggs, J.A., Burns, N.L., Van Alstine, J.M., Harris, J.M., Protein-rejecting ability of surface-bound dextran in end-on and side-on configurations: Comparison to PEG (1995) J Biomed Mater Res, 29, pp. 741-747; 
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Massia, S.P., Stark, J., Immobilized RGD peptides on surface-grafted dextran promote biospecific cell attachment (2001) J Biomed Mater Res, 56, pp. 390-399; 
Wong, W.H., Mooney, D.J., Synthesis and properties of biodegradable polymers used as synthetic matrices for tissue engineering (1997) Synthetic Biodegradable Polymer Scaffolds, p. 50. , Atala A, Mooney DJ, editors. Boston, MA: Birkh{\"a}user; 
Lee, K.Y., Mooney, D.J., Hydrogels for tissue engineering (2001) Chem Rev, 101 (7), pp. 1869-1879; 
Hern, D.L., Hubbell, J.A., Incorporation of adhesion peptides into nonadhesive hydrogels useful for tissue resurfacing (1998) J Biomed Mater Res, 39, pp. 266-276; 
Mann, B.K., Gobin, A.S., Tsai, A.T., Schmedlen, R.H., West, J.L., Smooth muscle cell growth in photopolymerized hydrogels with cell adhesive and proteolytically degradable domains: Synthetic ECM analogs for tissue engineering (2001) Biomaterials, 22, pp. 3045-3051; 
De Groot, C.J., Van Luyn, M.J.A., Van Dijk-Wolthuis, W.N.E., Cad{\'e}e, J.A., Plantinga, J.A., Den Otter, W., Hennink, W.E., In vitro biocompatibility of biodegradable dextran-based hydrogels tested with human fibroblasts (2001) Biomaterials, 22, pp. 1197-1203; 
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},
	month = {2004///},
	pages = {584 - 596},
	abstract = {The biocompatibility of chemoenzymatically generated dextran-acrylate hydrogels has been evaluated in vitro, using human foreskin fibroblasts, and in vivo, by subcutaneous and intramuscular implantation in Wistar rats for up to 40 days. In vitro tests show that hydrogel extracts only minimally reduced (<10\%) the mitochondrial metabolic activity of fibroblasts. Direct contact of the hydrogels with cells induced a cellular proliferation inhibition index (CPII) of 50-80\%, compared with a control, whereas through indirect contact, the CPII values were <16\%, suggesting that the high CPII values achieved in the direct assay test were likely due to mechanical stress or limitations in oxygen diffusion. Hence, the hydrogels were noncytotoxic. Moreover, cell-material interaction studies show that these hydrogels were nonadhesive. Finally, histologic evaluation of tissue response to subcutaneous and intramuscular implants showed acceptable levels of biocompatibility, as characterized by a normal cellular response and the absence of necrosis of the surrounding tissues of the implant. In the first 10 days, the foreign-body reaction in the intramuscular implantation was more severe than in subcutaneous implantation, becoming identical after 30 days. In both cases, dextran hydrogels did not show signs of degradation 6 weeks postimplantation and were surrounded by a thin fibrous capsule and some macrophages and giant cells. This response is typical with a number of nondegradable biocompatible materials. These results indicate that dextran hydrogels are biocompatible, and may have suitable applications as implantable long-term peptide/protein delivery systems or scaffolds for tissue engineering. {\textcopyright} 2004 Wiley Periodicals, Inc.},
	keywords = {Acrylates, acrylic acid, animal experiment, animal model, animal tissue, Animals, article, Biocatalytic polyester, Biocompatibility, Biocompatible Materials, Biodegradation, Environmental, Biodiversity, Biomaterials, cell adhesion, Cell Division, cell interaction, cell proliferation, Cells, Cultured, Coenzymes, controlled study, Cytotoxicity, dextran, dextran acrylate, dextran acrylate hydrogel, dextran hydrogel, Dextrans, drug delivery system, Enzymes, fibroblast, Fibroblasts, Fibrous capsules, foreign body reaction, Foreign-Body Reaction, giant cell, human, human cell, Humans, hydrogel, Hydrogels, implantation, Implants (surgical), Implants, Experimental, in vitro study, in vivo study, macrophage, male, materials testing, mechanical stress, Mechanical stresses, metabolism, Mitochondria, mitochondrial respiration, nonhuman, oxygen diffusion, prepuce, rat, Rats, Rats, Wistar, Tissue, Tissue engineering, unclassified drug},
	isbn = {00219304 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-1342280525\&partnerID=40\&md5=fe5529e53db4261e72bde7a75e2cf2cc},
	author = {Ferreira, L. and Rafael, A. and Lamghari, M. and Barbosa, M.A. and Gil, M.H. and Cabrita, A.M.S. and Dordick, J.S.}
}
@book {2488,
	title = {Biological Activity of Two Glass Ceramics in the Meta- and Pyrophosphate Region: A Comparative Study},
	series = {Key Engineering MaterialsKey Eng Mat},
	volume = {254-256},
	year = {2004},
	note = {Conference code: 62053Cited By (since 1996): 2Export Date: 21 November 2012Source: ScopusCODEN: KEMAELanguage of Original Document: EnglishCorrespondence Address: Dias, A.G.; Faculdade de Engenharia, Universidade do Porto, DEMM, Rua Dr. Roberta Frias, 4200 Porto, PortugalReferences: Dias, A.G., Lopes, M.A., Gibson, I., Santos, J.D., J. Non-Crystal. Solids, , in press;Dias, A.G., Lopes, M.A., Tsuru, K., Hayakawa, S., Santos, J.D., Osaka, A., Physiscs and Chemistry of Glasses, , in press; 
Dias, A.G., Lopes, M.A., Santos, J.D., Advance Materials Science, , in press; 
Rykke, M., Rolla, G., Sonju, T., (1988) Scand. J. Dent. Res., 96, pp. 517-522
},
	month = {2004///},
	pages = {825 - 828},
	address = {Porto},
	abstract = {Based upon the CaO-P                        2O
                        5 glass system, two glass ceramics were prepared in the metaand pyrophosphate regions. The present work describes preliminary results concerning the biological activity of MK5B (45CaO-45P
                        2O
                        5-5MgO-5K20, in mol \%) and MT13B (45CaO-37P
                        2O
                        55-5MgO-13TiO
                        2, in mol \%) using MG63 osteoblast-like cells. Both materials supported cell growth and proliferation which increased with the incubation time. However, cell growth was significantly lower on seeded MK5B samples. SEM observation showed that cell adhesion and spreading were hampered on this material. Evident degradation of the material surface was observed with simultaneous cell proliferation and material precipitation. By contrast, MT13B presented a relatively stable surface throughout the culture time. Results suggest that the in vitro biological behaviour of MK5B and MT13B is related with differences in the degradation rates of the two materials during the culture time.
},
	keywords = {Adhesion, Biodegradable glass ceramics, Biodegradation, Bone, cell proliferation, Cells, Crystallization, Degradation, Glass ceramics, incubation time, MG63 osteoblast-like cells, Scanning electron microscopy, X ray diffraction},
	isbn = {10139826 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0348146001\&partnerID=40\&md5=5245524d4dfb5615946aadcf5eb7c37a},
	author = {Dias, A.G. and Costa, M.A. and Lopes, M.A. and Santos, J.D. and Fernandas, M.H.},
	editor = {Barbosa M.A. and Monteiro F.J. and Correia R. and Leon B.}
}
@article {2474,
	title = {Calcium phosphate-alginate microspheres as enzyme delivery matrices},
	journal = {BiomaterialsBiomaterials},
	volume = {25},
	year = {2004},
	note = {Cited By (since 1996): 92Export Date: 21 November 2012Source: ScopusCODEN: BIMADdoi: 10.1016/j.biomaterials.2003.11.028PubMed ID: 15046927Language of Original Document: EnglishCorrespondence Address: Ribeiro, C.C.; Laborat{\'o}rio de Biomateriais, INEB, Inst. de Engenharia Biom{\'e}dica, Rua do Campo Alegre 823, Porto 4150-180, Portugal; email: cribeiro@ineb.up.ptChemicals/CAS: Alginates; alginic acid, 9005-32-7; calcium phosphate, 10103-46-5; Calcium Phosphates; Drug Carriers; Enzymes, Immobilized; Glucosylceramidase, EC 3.2.1.45; Glucuronic Acid, 576-37-4; Hexuronic Acids; PowdersReferences: Griffith, L.G., Naughton, G., Tissue engineering: Current challenges and expanding opportunities (2002) Science, 295, pp. 1009-1014;Hench, L.L., Polak, J.M., Third-generation biomedical materials (2002) Science, 295, pp. 1014-1017; 
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Dupuy, B., Arien, A., Minnot, A.P., FT-IR membranes made with alginate/polylysine complexes. Variations with mannuronic or guluronic content of the polysaccharides. Art Cells, Blood Subs (1994) Immob Biotech, 20, pp. 71-82; 
Peters, T., (1996) All about Albumin: Biochemistry, Genetics and Medical Applications, , San Diego, CA: Academic Press Inc; 
Nakanishi, K., Sakiyama, T., Imamura, K., On the adsorption of proteins on solid surfaces, a common but very complicated phenomenon (2001) J Biosci Bioeng, 91, pp. 233-244
},
	month = {2004///},
	pages = {4363 - 4373},
	abstract = {The present study concerns the preparation and initial characterisation of novel calcium titanium phosphate-alginate (CTP-alginate) and hydroxyapatite-alginate (HAp-alginate) microspheres, which are intended to be used as enzyme delivery matrices and bone regeneration templates. Microspheres were prepared using different concentrations of polymer solution (1\% and 3\%w/v) and different ceramic-to-polymer solution ratios (0.1, 0.2 and 0.4w/w). Ceramic powders were characterised using X-ray diffraction, laser granulometry, Brunauer, Emmel and Teller (BET) method for the determination of surface area, zeta potential and Fourier transform infrared spectroscopy (FT-IR). Alginate was characterised using high performance size exclusion chromatography. The methodology followed in this investigation enabled the preparation of homogeneous microspheres with a uniform size. Studies on the immobilisation and release of the therapeutic enzyme glucocerebrosidase, employed in the treatment of Gaucher disease, were also performed. The enzyme was incorporated into the ceramic-alginate matrix before gel formation in two different ways: pre-adsorbed onto the ceramic particles or dispersed in the polymeric matrix. The two strategies resulted in distinct release profiles. Slow release was obtained after adsorption of the enzyme to the ceramic powders, prior to preparation of the microspheres. An initial fast release was achieved when the enzyme and the ceramic particles were dispersed in the alginate solution before producing the microspheres. The latter profile is very similar to that of alginate microspheres. The different patterns of enzyme release increase the range of possible applications of the system investigated in this work. {\textcopyright} 2003 Elsevier Ltd. All rights reserved.},
	keywords = {Absorption, Adsorption, Alginate, Alginates, article, Biomaterials, Bone, Calcium Compounds, Calcium phosphates, Calcium titanium phosphate, calcium titanium phosphate alginate, ceramics, Drug Carriers, Drug Delivery Systems, Enzyme delivery, Enzyme-delivery, Enzymes, Enzymes, Immobilized, Fourier transform infrared spectroscopy, Glucosylceramidase, Glucuronic Acid, Hexuronic Acids, High performance liquid chromatography, hydroxyapatite, hydroxyapatite alginate, laser, methodology, microsphere, Microspheres, Molecular Conformation, Particle Size, Powders, priority journal, surface property, unclassified drug, X ray diffraction},
	isbn = {01429612 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-1642331315\&partnerID=40\&md5=217590793385cbaff039a6b260d3d85c},
	author = {Ribeiro, C.C. and Barrias, C.C. and Barbosa, M.A.}
}
@book {2486,
	title = {CaO-P                    2O
                    5 Glass-Hydroxyapatite Thin Films Obtained by Laser Ablation: Characterisation and In Vitro Bioactivity Evaluation
},
	series = {Key Engineering MaterialsKey Eng Mat},
	volume = {254-256},
	year = {2004},
	note = {Conference code: 62053Cited By (since 1996): 1Export Date: 21 November 2012Source: ScopusCODEN: KEMAELanguage of Original Document: EnglishCorrespondence Address: Ferraz, M.P.; Inst. de Engenharia Biom{\'e}dica, Laborat{\'o}rio de Biomateriais, Rua Campo Alegre 823, 4150-180 Porto, Portugal; email: mpferraz@ufp.ptReferences: Arias, J.L., (1997) J Mater. Sci. Mater. Med., 8, pp. 873-876;Peraire, C., (1997) 13 th European Conference on Biomaterials, p. 75. , G{\"o}teborg, Sweden, 4-7 Sept; 
Ferraz, M.P., Monteiro, F.J., Santos, J.D., (1999) J Biomed Mater Res, 45, p. 373; 
Ferraz, M.P., Fernandes, M.H., Trigo-Cabral, A., Santos, J.D., Monteiro, F.J., (1999) J. Mat Sci: Mat. Med, 10 (9), p. 567
},
	month = {2004///},
	pages = {347 - 350},
	address = {Porto},
	abstract = {Hydroxyapatite (HA) coatings have been applied to improve adhesion of non-cemented implants to host bone. Plasma spraying is the most common technique leading to thick calcium phosphate films (\&gt;120μm). Pulse laser deposition (PLD), is a possible alternative method to obtain thin (\&lt;10 μm), well adherent hydroxyapatite (HA) films. Similarly to synthetic HA, biological apatites contain Ca                        2+, PO
                        4
                        3- and OH
},
	keywords = {2O, 5 glass, Adhesion, Bioactivity, Bone, Calcium Compounds, CaO-P, Coatings, Deposition, Energy dispersive spectroscopy, Homogeneous mixtures, Hydroxylapatite thin films, Implants (surgical), In vitro bioactivity, Laser ablation, Plasma spraying, Scanning electron microscopy, Thin films, X ray diffraction},
	isbn = {10139826 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0347516195\&partnerID=40\&md5=ddd47b73956669a35aa9041ce9102612},
	author = {Ferraz, M.P. and Monteiro, F.J. and Gi{\~a}o, D. and Leon, B. and Gonzalez, P. and Liste, S. and Serra, J. and Arias, J. and Perez-Amor, M.},
	editor = {Barbosa M.A. and Monteiro F.J. and Correia R. and Leon B.}
}
@book {2494,
	title = {Combining Foaming and Starch Consolidation Methods to Develop Macroporous Hydroxyapatite Implants},
	series = {Key Engineering MaterialsKey Eng Mat},
	volume = {254-256},
	year = {2004},
	note = {Conference code: 62053Cited By (since 1996): 10Export Date: 21 November 2012Source: ScopusCODEN: KEMAELanguage of Original Document: EnglishCorrespondence Address: Lemos, A.F.; Depto. de Engenharia Cer{\^a}mica, CICEO, Campus de Santiago, 3810-193 Aveiro, Portugal; email: ilemos@cv.ua.ptReferences: De Groot, K., (1983) Bioceramics of Calcium Phosphates, , CRC Press, Boca Raton, FL;Hench, L.L., Wilson, J., (1993) An Introduction to Bioceramics, , World Scientific, London, UK; 
Ohgushi, H., Okumura, M., Yoshikawa, T., Inoue, K., Senpuku, N., Tamai, S., Shors, E.C., (1992) J. Biomed. Mater. Res., 26, p. 885; 
Minnear, W.P., (1992) Processing of Foamed Ceramics, Ceramic Transactions, Forming Science and Technology for Ceramics Vol. 26, 26. , ed. M.J. Cima, The American Ceramic Society, USA; 
Omatete, O., Janney, M.A., Strehlow, R.A., (1991) Am. Ceram Soc.Bull., 70, p. 1641; 
Kosmac, T., Novak, S., Sajko, M., (1995) Fourth Euro Ceramics, Vol. 1, Basic Science Developments, 1. , ed. C. Galassi. Gruppo Editoriale Faenza Editrice S.p.a., Italy; 
Graule, T.J., Baader, F.H., Gauckler, L.J., (1994) Cfi/Ber. DKH., 71, p. 317; 
Novich, B.E., Sundback, C.A., Adams, R.W., (1992) Ceramic Transactions, 26. , ed. M. J. Cima. American Ceramic Society, USA; 
Rives, R.D., U. S. Patent 4113480 (1976)Lycfeldt, O., Brandt, J., Lesca, S., (2000) J. Eur. Ceram. Soc., 20 (14-15), p. 2551; 
Olhero, S.M., Tar{\`\i}, G., Coimbra, M.A., Ferreira, J.M.F., (2000) J. Eur. Ceram. Soc., 20 (4), p. 423; 
Lycfeldt, O., Ferreira, J.M.F., (1998) J. Eur. Ceram. Soc., 18, p. 131; 
Lemos, A.F., Santos, J.D., Ferreira, J.M.F., (2003) Advanced Materials Forum, , in press
},
	month = {2004///},
	pages = {1041 - 1044},
	address = {Porto},
	abstract = {Hydroxyapatite (HA) is the calcium-phosphate material with composition closest to that of bone, what makes it suitable for osseous implant purposes. This material was used to produce macroporous structures with pores larger than 100 μm, which are believed to be suitable for allowing bone ingrowth. The macroporous structures were generated and consolidated by combining foaming and starch consolidation methods. The porous structures could be tailored according to the final application by varying the proportion of different foaming agents, foam-bath concentrate (FBC) and sodium lauril sulphate (SLS). Playing with these proportions it was also possible to improve foam stability and model the size of pores and pore interconnections in order to reproduce the pore structure of natural bone.},
	keywords = {Bioceramics, Biocompatibility, Bone, Composition, Foaming method, hydroxyapatite, Hydroxyapatlte, Implants (surgical), Macroporous structures, Microstructure, Pore size, Porous ceramics, Porous materials, Starch, Starch consolidation},
	isbn = {10139826 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0346885485\&partnerID=40\&md5=63e5b33a0a2185af44b629c565e5240f},
	author = {Lemos, A.F. and Ferreira, J.M.F.},
	editor = {Barbosa M.A. and Monteiro F.J. and Correia R. and Leon B.}
}
@book {2495,
	title = {Designing of Bioceramics with Bonelike Structures Tailored for Different Orthopaedic Applications},
	series = {Key Engineering MaterialsKey Eng Mat},
	volume = {254-256},
	year = {2004},
	note = {Conference code: 62053Cited By (since 1996): 4Export Date: 21 November 2012Source: ScopusCODEN: KEMAELanguage of Original Document: EnglishCorrespondence Address: Lemos, A.F.; Depto. de Engenharia Cer{\^a}mica, CICECO, Campus de Santiago, 3810-193 Aveiro, Portugal; email: ilemos@cv.ua.ptReferences: Hing, K.A., Best, S.M., Tanner, K.E., Bondfield, W., Revell, P.A., (1997) J. Mater. Sci: Mater Med., 8, p. 731;Santos, J.D., Knowles, J.C., Reis, R.L., Monteiro, F.J., Hastings, G.W., (1994) Biomaterials, 15, p. 5; 
Lopes, M.A., Knowles, J.C., Santos, J.D., Monteiro, F.J., Olsen, I., (1998) J. Biomed. Mater. Res., 41, p. 649; 
Kon, E., Muraglia, A., Corsi, A., Bianco, P., Marcacci, M., Martin, I., Boyde, A., Quarto, R., (2000) J. Biomed. Mater. Res., 49 (3), p. 328; 
Prado da Silva, M.H., Lemos, A.F., Lopes, M.A., Ferreira, J.M.F., Santos, J.D., (2002) Journal of Non-crystalline Solids, 304, p. 286; 
Schwartzwalder, K., Somers, A.V., U.S. Patent n{\textdegree} 3 090 094, (1963)Saggio-Woyanski, J., Scott, C.E., Minnear, W.P., (1992) Amer. Ceram. Soc. Bull., 71 (11), p. 1674; 
Olhero, S.M., Tar{\`\i}, G., Coimbra, M.A., Ferreira, J.M.F., (2000) J. Eur. Ceram. Soc., 20 (4), p. 423; 
Lyckfeldt, O., Ferreira, J.M.F., (1998) J. Eur. Ceram. Soc., 18, p. 131; 
Lemos, A.F., Santos, J.D., Ferreira, J.M.F., (2003) Advanced Materials Forum, , in press; 
Lyckfeldt, O., Brandt, J., Lesca, S., (2000) J. Eur. Ceram. Soc., 20 (14-15), p. 2551
},
	month = {2004///},
	pages = {1037 - 1040},
	address = {Porto},
	abstract = {Innovative methods for the production of porous bioceramics for implants with tailored pore volume fractions, pore sizes, pore size distributions and pore interconnectivity have been developed. The average pore sizes can vary from a few micrometers to more than one millimeter, therefore fulfilling all the needs required for components used in implantology. The methods combine in a suitable way the knowledge coming from different areas in the field of colloid and interface science, namely, on the processing of ceramic materials by traditional colloidal shaping techniques such as slip casting with a number of new direct consolidation techniques, which transform the fluid hydroxyapatite (HA) based suspensions into rigid bodies, and particularly the expertise in the production of porous ceramics by different techniques. Slip casting was preferably used for designing the cortical part of the bone, while direct consolidation techniques were used to "freeze" tailored foamy structures or suspensions containing different kinds of organic inclusions of suitable sizes and amounts that generate pores after burning out.},
	keywords = {Bioceramics, Biocompatibility, Bone, Cells, Ceramic materials, Consolidation techniques, hydroxyapatite, morphology, orthopedics, Pore size, Porous ceramics, Porous materials, Sintering, Slip casting},
	isbn = {10139826 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0347516107\&partnerID=40\&md5=1bc01982f338c175b41fd08698d3da1c},
	author = {Lemos, A.F. and Ferreira, J.M.F.},
	editor = {Barbosa M.A. and Monteiro F.J. and Correia R. and Leon B.}
}
@book {2493,
	title = {Effect of the Solvents on the Solution Mixture Derived Polylactide/hydroxyapatite Composites},
	series = {Key Engineering MaterialsKey Eng Mat},
	volume = {254-256},
	year = {2004},
	note = {Conference code: 62053Cited By (since 1996): 1Export Date: 21 November 2012Source: ScopusCODEN: KEMAELanguage of Original Document: EnglishCorrespondence Address: Weng, W.; Dept. of Mat. Sci. and Engineering, Zhejiang University, Hangzhou 310027, China; email: wengwj@zju.edu.cnReferences: Hench, L.L., (1998) Journal of American Ceramic Society, 81, p. 1705;Wang, M., (2003) Biomaterials, 24, p. 2133; 
Hao, J., Yuan, M., Deng, X., (2001) Biomaterials, 22, p. 2867; 
Ignjatovic, N., Tomic, S., Dakic, M., Miljkovic, M., Plavsic, M., Uskokovic, D., (1999) Biomaterials, 20, p. 809; 
Misra, D.N., (1988) Langmuir, 4, p. 953; 
Dean, J.A., (1999) Lange{\textquoteright}s Handbook of Chemistry (15th Edition), , McGraw-HILL, INC. New York
},
	month = {2004///},
	pages = {477 - 480},
	address = {Porto},
	abstract = {Polylactide/hydroxyapatite composites were prepared by a solution mixture method. Chloroform and tetrahydrofuran were used as solvents. The effect of the solvents on the polylactide/hydroxyapatite composites was investigated by TEM, mechanical properties, sedimentation time and UV-Vis transmission spectra. The results indicate that the polylactide/hydroxyapatite prepared using tetrahydrofuran as solvent has better dispersion of the hydroxyapatite filler in the matrix and larger bend strength than the one using chloroform as solvent. This is ascribed to the proper interaction between the solvent and hydroxyapatite filler.},
	keywords = {Bend strength, Composite, Composite materials, dispersion, Dispersions, Fillers, Heat treatment, Hydroxvapatite, hydroxyapatite, Polarity, polylactide, Sedimentation, Solutions, Solvent, Solvents, transmission electron microscopy, Ultraviolet radiation},
	isbn = {10139826 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0346885571\&partnerID=40\&md5=4f0c563b563f23ea5102e4ef36cfd243},
	author = {Li, Y. and Weng, W. and Cheng, K. and Du, P. and Shen, G. and Han, G. and Lopes, M.A. and Santos, J.D.},
	editor = {Barbosa M.A. and Monteiro F.J. and Correia R. and Leon B.}
}
@book {2485,
	title = {Effects of some variables on R.F. Magnetron Sputtered Hydroxyapatite Coatings on Titanium},
	series = {Key Engineering MaterialsKey Eng Mat},
	volume = {254-256},
	year = {2004},
	note = {Conference code: 62053Export Date: 21 November 2012Source: ScopusCODEN: KEMAELanguage of Original Document: EnglishCorrespondence Address: Silva, R.A.; Inst. Sup. de Engenharia do Porto, Rua Dr. Antonio Bernardino A., 431, 4200-072 Porto, Portugal; email: ras@isep.ipp.ptReferences: Hing, K.A., Best, S.M., Tanner, K.E., Bonfield, W., Revell, P.A., (1997) Journal of Materials Science: Materials in Medicine, 8, pp. 731-736;Raynaud, S., Champion, E., Bernache-Assolant, D., Tetard, D., (1998) Journal of Materials Science: Materials in Medicine, 9, pp. 221-227; 
Weng, J., Liu, X., Zhang, X., De Groot, K., (1996) Journal of Biomedical Materials Research, 30, pp. 5-11; 
Gross, K.A., Gross, V., Berndt, C.C., (1998) Journal of the American Ceramic Society, 81 (1), pp. 106-112; 
Edwards, J.T., Brunski, J.B., Higuchi, (1997) Journal of Biomedical Materials Research, 36, pp. 454-468; 
Yang, C.Y., Lin, R.M., Wang, B.C., Lee, T.M., Chang, E., Hang, Y.S., Chen, P.Q., (1997) Journal of Biomedical Materials Research, 37, pp. 335-345; 
Ogiso, M., Yamamura, M., Kuo, P.T., Borgese, D., Matsumoto, T., (1998) Journal of Biomedical Materials Research, 39, pp. 364-372; 
Van Dijk, K., Schaeken, H.G., Wolke, J.G.C., Maree, C.H.M., Habraken, F.H.P.M., Jansen, J.A., (1995) Materials in Clinical Applications, pp. 249-256. , P. Vincenzini, (ed.); 
Yoshinari, M., Hayakawa, T., Wolke, J.G.C., Nemoto, K., Jansen, J.A., (1997) Journal of Biomedical Materials Research, 37, pp. 60-67; 
Wolke, J.G.C., De Groot, K., Jansen, J.A., (1998) Journal of Biomedical Materials Research, 39, pp. 524-530
},
	month = {2004///},
	pages = {323 - 326},
	address = {Porto},
	abstract = {RF sputtering may be used to produce thin, well adherent bioactive coatings with long term stability to ensure contact with bone tissue. RF Sputtered Hydroxyapatite (HA) coatings were produced onto Ti at 200 and 150 W. S.E.M. analysis indicated that films obtained with 200 W were thicker than those with 150 W. Significant variations were observed, depending on the location of the substrates with respect to the sample holder in the sputtering chamber, with thickness ranging from 1.8 to 3.2 μm. EDS analysis of 200 W films revealed the presence of Ca and P, in ratios typical of HA. XPS of thinner films obtained at 150 W, showed Ca and P, but also some carbonate probably partially substituting OH. Anodic polarisation curves of samples coated at 200 W and 150 W and for different sputtering times, compared to Ti substrate, indicate that HA films were protective and that the degree of protection increased with film thickness, i.e., with power intensity and time of deposition.},
	keywords = {Bioactive coatings, Bone, Coatings, Corrosion protection, hydroxyapatite, Magnetron sputtering, Plasma spraying, Polarization, RF sputtering, Scanning electron microscopy, Sputter deposition, Sputtering chambers, Thin films, Titanium},
	isbn = {10139826 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0347659048\&partnerID=40\&md5=3b3caf6fcde1c71242d25a74b296f870},
	author = {Silva, R.A. and Sousa, M. and Monteiro, F.J. and Barral, R. and Santos, J.D. and Lopes, M.A.},
	editor = {Barbosa M.A. and Monteiro F.J. and Correia R. and Leon B.}
}
@article {2467,
	title = {Electrochemical behaviour of titanium coated stainless steel by r.f. sputtering in synthetic sweat solutions for electrode applications},
	journal = {Corrosion ScienceCorros. Sci.},
	volume = {46},
	year = {2004},
	note = {Cited By (since 1996): 13Export Date: 21 November 2012Source: ScopusCODEN: CRRSAdoi: 10.1016/j.corsci.2004.04.006Language of Original Document: EnglishCorrespondence Address: Fonseca, C.; Inst. de Engenharia Biom{\'e}dica, Laboratorio de Biomateriais, Rua do Campo Alegre, 823, 4150-180 Porto, Portugal; email: cfonseca@fe.up.ptReferences: Cooper, R., Osselton, J.W., Shaw, J.C., (1980) EEG Technology, pp. 20-28. , Butterworths and Co. Ltd;Femandez, M., Pallas-Aieny, R., (2000) Biomed. Iustrum. Technol., pp. 125-130. , March/April; 
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Mancuso, G., Tosti, A., Fanti, P.A., Berdondini, R.M., Mongiorgi, R., Morandi, A., (1990) Dermatologica, 181, pp. 324-326; 
Puig, L., Rocamora, V., Romani, J., Saavedra, M., Alomar, A., (1989) Pediatr. Dermatol., 15, pp. 27-30; 
Ko, W.K., Hynecek, J., Dry electrodes and electrode amplifiers (1974) Biomedical Electrode Technology, , HA. Miller, D.C. Harrison (Eds.), Academic Press, New York; 
Binnie, C.D., Rowan, A.J., Gutter, Th., (1982) A Manual of Electroencephalographic Technology, pp. 81-97. , Cambridge University Press; 
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Dunseath, Jr., (1991), NoB-polarizable dry biomedical electrode, US patent 5,003,978Burke, M.J., Gleeson, D.T., (2000) IEEE Trans. Biomed. Eng., 47 (2), pp. 155-162; 
Taheri, B., (2002), Biopotential sensor electrode, US patent 6,434,424 B1Pan, J., Leygraf, C., Ektressabi, A.M., (1997) J. Biomed. Mater. Res., 35, pp. 309-318; 
Fathi, M.H., Salehi, M., Saatchi, A., Mortazavi, V., Moosavi, S.B., (2003) Dent. Mater., 19, pp. 188-198; 
Kao, C.T., Ding, S.J., Chen, Y.C., Huang, T.H., (2002) J. Biomed. Mater. Res., 63 (6), pp. 786-792; 
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Caao, C.Y., Jin, L.F., Macdonald, D.D., (1982) J. Electrochem. Soc., 129, pp. 1874-1879; 
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Femandes, J., (1997) Corros{\~a}o Por Picadas Em Aluminio Modificado Por Implanta{\c c}{\'a}o I{\'o}ica De Tungst{\'e}nio, , PhD thesis, IST, Lisbon; 
Rammelt, U., Reinhard, G., (1987) Corros. Sci., 27, pp. 373-382; 
Park, J.R., MacDonald, D.D., (1983) Corros. Sci., 23, pp. 295-315; 
MacDonald, J.R., Johnson, W.B., (1987) Impedance Spectroscopy, , John Wiley, New York
},
	month = {2004///},
	pages = {3005 - 3018},
	abstract = {The r.f. sputtering technique was used to deposit titanium thin films on stainless steel substrates, aiming at the application of the coated samples as skin contact materials for "dry" active electrodes. In this work the electrochemical behaviour of the coated samples was investigated in synthetic sweat solutions and their performance was compared with that of uncoated stainless steel and bulk titanium. The characterisation of the samples was carried out by electrochemical techniques and scanning electron microscopy. The coated samples displayed corrosion resistance values in synthetic sweat solutions much higher than stainless steel samples and of the same order of the values measured for bulk titanium in the same conditions. {\textcopyright} 2004 Elsevier Ltd. All rights reserved.},
	keywords = {A. Sputtered films, A. Stainless steel, A. Titanium, B. EIS, coating, Corrosion resistance, Electrochemical corrosion, Electrochemical techniques, electrochemistry, electrode, Electrodes, Protective coatings, Scanning electron microscopy, Sputtering, Stainless steel, Synthetic sweat solutions, Thin films, Titanium},
	isbn = {0010938X (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-4644222640\&partnerID=40\&md5=7a4d452b2c52c155967ea2edb0cabb58},
	author = {Fonseca, C. and Vaz, F. and Barbosa, M.A.}
}
@article {2482,
	title = {Fabrication of alternating polycation and albumin multilayer coating onto stainless steel by electrostatic layer-by-layer adsorption},
	journal = {Colloids and Surfaces B: BiointerfacesColloids Surf. B Biointerfaces},
	volume = {34},
	year = {2004},
	note = {Cited By (since 1996): 17Export Date: 21 November 2012Source: ScopusCODEN: CSBBEdoi: 10.1016/j.colsurfb.2003.12.015PubMed ID: 15261073Language of Original Document: EnglishCorrespondence Address: Ji, J.; Department of Polymer Science, Zhejiang University, Hangzhou 310027, China; email: jianji@mail.hz.zj.cnChemicals/CAS: iodine 125, 14158-31-7, 22822-81-7; polyethyleneimine, 74913-72-7; stainless steel, 12597-68-1; Albumins; Lipid Bilayers; Polyamines; polycations; Polyethyleneimine, 9002-98-6; Stainless Steel, 12597-68-1References: Thomann, U.I., Uggowitzer, P.J., (2000) Wear, 239, p. 48;Cheatham, J., (2001) Prog. Pediat. Cardiol., 14, p. 95; 
Donachie, M., (1998) Adv. Mater. Process, 154, p. 63; 
Bertrand, P., (2000) Macromol. Rapid Commun., 21, p. 319; 
Ulman, A., (1996) Chem. Rev., 96, p. 1533; 
Sano, M., Lvov, Y., Kunitake, T., (1996) Annu. Rev. Mater. Sci., 26, p. 153; 
Laschewsky, A., (1997) Eur. Chem. Chronicle (ECC), 2, p. 13; 
Decher, G., (1997) Science, 277, p. 1232; 
Yoo, D., Seimei, S., Michael, F.R., (1998) Macromolecules, 31, p. 4309; 
Picart, C., Lavalle, Ph., Hubert, P., Cuisinier, F.J.G., Decher, G., Schaaf, P., Voegel, J.-C., (2001) Langmuir, 17, p. 7414; 
Houska, M., Brynda, E., (1997) J. Colloid Interf. Sci., 188, p. 243; 
Brynda, E., Houska, M., (1996) J. Colloid Interf. Sci., 183, p. 18; 
Lu, C.H., Luo, C.Q., Cao, W.X., (2002) Colloids Surf. B: Biointerf., 25, p. 19; 
Keogh, R.J., Eaton, J.W., (1994) J. Lab. Clin. Med., 124, p. 537; 
Munro, M.S., (1981) Trans. Am. Soc. Artif. Intern. Organs, 27, p. 499; 
Brynda, E., Houska, M., (2000) Protein Architecture: Interfacing Molecular Assemblies and Immobilization, pp. 251-285. , Y. Lvov, H. Moehwald (Eds.), Marcel Dekker, New York; 
Keogh, J.R., Velander, F.F., Eaton, W., (1992) J. Biomed. Mater. Res., 26, p. 441; 
Ji, J., Feng, L., Barbosa, M.A., (2001) Biomaterials, 22, p. 3015; 
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Ladam, G., Schaaf, P., Cuisinier, F.J.G., Decher, G., Voegel, J.C., (2001) Langmuir, 17, p. 878; 
Bertrand, P., Jonas, A., Laschewsky, A., Legras, R., (2000) Macromol. Rapid Commun., 21, p. 319
},
	month = {2004///},
	pages = {185 - 190},
	abstract = {Multilayer films consisting of polyethylenimine (PEI) and albumin were successfully prepared on biomedical 316L stainless steel surface via electrostatic self-assembly of the PEI and albumin. The process of electrostatic self-assembly of PEI/albumin was monitored by                        125I radiolabeling, electrochemical impedance spectroscopy (EIS) and atomic force microscopy (AFM). The EIS data revealed that the multilayer coating was stable in Tris-HCl (pH 7.35) buffer solution for 21 days. 
                        125I radiolabeling experiments indicated that less than 10\% albumin was eluted by PBS in 45 days. Static platelet adhesion experiments indicated that the PEI/albumin deposited on stainless steel could resist platelet adhesion effectively. Such an easy processing and shape-independent method may have good potential for surface modification of cardiovascular devices. {\textcopyright} 2004 Elsevier B.V. All rights reserved.
},
	keywords = {Adhesion, Adsorption, Albumin, Albumins, article, Atomic force microscopy, Cardiovascular devices, Chemical modification, Coatings, Electric Impedance, Electric Potential, Electrochemical impedance spectroscopy, electrochemistry, Electrons, Electrostatics, film coating, iodine 125, isotope labeling, Layer-by-layer, Lipid Bilayers, Microscopy, Atomic Force, Multilayers, Nonthrombogenic, pH effects, Platelet Adhesiveness, Polyamines, polycation, Polycations, Polyethyleneimine, priority journal, Proteins, Self assembly, Spectroscopy, Spectrum Analysis, Stainless steel, Surface modification, Surface Properties, surface property, Surface treatment, thrombocyte adhesion},
	isbn = {09277765 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-1642271404\&partnerID=40\&md5=29885596e6efdc7afcc5b2fdd57317be},
	author = {Ji, J. and Tan, Q. and Fan, D.-Z. and Sun, F.-Y. and Barbosa, M.A. and Shen, J.}
}
@article {2500,
	title = {Fabrication of alternating polycation and albumin multilayer coating by electrostatic layer-by-layer adsorption},
	journal = {Journal of Materials ScienceJ Mater Sci},
	volume = {39},
	year = {2004},
	note = {Cited By (since 1996): 1Export Date: 21 November 2012Source: ScopusCODEN: JMTSAdoi: 10.1023/B:JMSC.0000008087.71937.71Language of Original Document: EnglishCorrespondence Address: Ji, J.; Department of Polymer Science, Zhejiang University, Hangzhou 310027, China; email: jianji@mail.hz.zj.cnReferences: Bertrand, P., Jonas, A., Laschewsky, A., (2000) Macr. Rap. Comm., 21, p. 319;Ulman, A., (1996) Chem. Rev., 96, p. 1533; 
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Cheng, Z., Cheng, L., Dong, S., Yang, X., (2001) J. Electrochem. Soc., 148, pp. E227
},
	month = {2004///},
	pages = {349 - 351},
	abstract = {The construction of albumin multilayers via the electrostatic self-assembly (ESA) method was explored. Based on the results, it was possible to develop a fast, easy processing and shape-independent method for nonthrombogenic coating.},
	keywords = {Adhesion, Adsorption, Albumin, Biocompatibility, Biological materials, Biopolymers, Blood, Charge transfer, Chemical bonds, Covalent binding, Desorption, Electron transfer, Electron transfer resistance, Electrostatic layer by layer adsorption, Electrostatics, Multilayers, polycation, Positive ions, Spectroscopic analysis, Static platelet adhesion},
	isbn = {00222461 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0842312335\&partnerID=40\&md5=90716a579ba430045f75ca682551d418},
	author = {Ji, J. and Tan, Q. and Fan, D.-Z. and Sun, Y.-F. and Barbosa, M.A. and Shen, J.}
}
@article {2472,
	title = {Human serum albumin adsorption on TiO                    2 from single protein solutions and from plasma
},
	journal = {LangmuirLangmuir},
	volume = {20},
	year = {2004},
	note = {Cited By (since 1996): 58Export Date: 21 November 2012Source: ScopusCODEN: LANGDdoi: 10.1021/la049158dPubMed ID: 15491210Language of Original Document: EnglishCorrespondence Address: Sousa, S.R.; Inst. de Engenharia Biom{\'e}dica, Laborat{\'o}rio Biomateriais, Rua do Campo Alegre, 823, 4150-180 Porto, Portugal; email: ssousa@ibmc.up.ptChemicals/CAS: serum albumin, 9048-46-8; titanium dioxide, 1317-70-0, 1317-80-2, 13463-67-7, 51745-87-0; titanium, 7440-32-6; Serum Albumin; Solutions; titanium dioxide, 13463-67-7; Titanium, 7440-32-6References: Nakabayashi, N., Iwasaki, Y., (2000) European White Book on Fundamental Research in Materials Science, pp. pp70-71. , R{\"u}hle, M., Dosch, H., Mittemeijer, E. J.Van de Voorde, M. H., Eds.; Max Plank Institut fur Metallforschung: Stuttgart, Germany;Windler, M., Klabunde, R., (2001) Titanium in Medicine; Material Science, Surface Science, Engineering, Biological Responses and Medical Applications, pp. 703-746. , Brunette, D. M., Tengvall, P., Textor, M., Thomsen, P., Eds.; Springer-Verlag: Berlin, Germany; 
Larsson, C., Esposito, M., Liao, H., Thomsen, P., (2001) Titanium in Medicine: Material Science, Surface Science, Engineering, Biological Responses and Medical Applications, pp. 587-648. , Brunette, D.M., Tengvall, P., Textor, M., Thomsen, P., Eds.; Springer-Verlag: Berlin, Germany; 
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},
	month = {2004///},
	pages = {9745 - 9754},
	abstract = {In the present work, the adsorption of human serum albumin (HSA) on commercially pure titanium with a titanium oxide layer formed in a H                        2O
                        2 solution (TiO
                        2 cp) and on TiO
                        2 sputtered on Si (TiO
                        2 sp) was analyzed. Adsorption isotherms, kinetic studies, and work of adhesion determinations were carried out. HSA exchangeability was also evaluated. Surface characterization was performed by atomic force microscopy (AFM), X-ray photoelectron spectroscopy (XPS), and wettability studies. The two TiO
                        2 surfaces have very distinct roughnesses, the TiO
                        2 sp having a mean R
                        a value 14 times smaller than the one of TiO
                        2 cp. XPS analysis revealed consistent peaks representative of TiO
                        2 on sputtered samples as well as on Ti cp substrate after 48 h of H
                        2O
                        2 immersion. Nitrogen was observed as soon as protein was present, while sulfur, present in disulfide bonds in HSA, was observed for concentrations of protein higher than 0.30 mg/mL. The work of adhesion was determined from contact angle measurements. As expected from the surface free energy values, the work of adhesion of HSA solution is higher for the TiO
                        2 cp substrate, the more hydrophilic one, and lower for the TiO
                        2 sp substrate, the more hydrophobic one. The work of adhesion between plasma and the substrates assumed even higher values for the TiO
                        2 cp surface, indicating a greater interaction between the surface and the complex protein solutions. Adsorption studies by radiolabeling of albumin (
                        125I-HSA) suggest that rapid HSA adsorption takes place on both surfaces, reaching a maximum value after ~60 min of incubation. For the higher HSA concentrations in solution, a multilayer coverage was observed on both substrates. After the adsorption step from single HSA solutions, the exchangeability of adsorbed HSA molecules by HSA in solution was evaluated. The HSA molecules adsorbed on TiO
                        2 sp seem to be more easily exchanged by HSA itself than those adsorbed on TiO
                        2 cp after 24 h. In contrast, after 72 h, nearly all the adsorbed albumin molecules effectively exchange with other albumin molecules.
},
	keywords = {Adsorption, article, Atomic force microscopy, Blood, chemistry, human, Human serum albumin (HSA), Humans, hydrophobicity, Multilayers, plasma, Plasmas, Plastic surgery, Proteins, Radiolabeling, Serum Albumin, solution and solubility, Solutions, Substrates, Surface characterization, Surface Properties, surface property, Titanium, Titanium dioxide, X ray photoelectron spectroscopy},
	isbn = {07437463 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-8344221996\&partnerID=40\&md5=60496aebf9155224cadbbb1456ff8a25},
	author = {Sousa, S.R. and Moradas-Ferreira, P. and Saramago, B. and Viseu Melo, L. and Barbosa, M.A.}
}
@book {2489,
	title = {In Vitro Cytocompatibility of Osteoblastic Cells Cultured on Chitosan-Organosiloxane Hybrid Membrane},
	series = {Key Engineering MaterialsKey Eng Mat},
	volume = {254-256},
	year = {2004},
	note = {Conference code: 62053Cited By (since 1996): 2Export Date: 21 November 2012Source: ScopusCODEN: KEMAELanguage of Original Document: EnglishCorrespondence Address: Shirosaki, Y.; Biomaterial Laboratory, Faculty of Engineering, Okayama University, Tsushima, Okayama-shi 700-8530, JapanReferences: Chandy, T., Sharma, P.C., (1990) Biomat Art Cells Art Org, 18, pp. 1-24;Jameela, S.R., Jayakrishnan, A., (1995) Biomaterials, 16, pp. 769-775; 
Nishi, C., Nakajima, N., Ikada, Y., (1995) J Biomed Mater Res., 29, pp. 829-834; 
Ren, L., Tsuru, K., Hayajkawa, S., Osaka, A., (2002) Biomaterials, 23, pp. 4765-4773
},
	month = {2004///},
	pages = {857 - 860},
	address = {Porto},
	abstract = {Chitosan-silicate hybrids were synthesized using γ-glycidoxypropyltrimethoxysilane (GPSM) as the agent to cross-link the chitosan chains. Fourier-transform infrared (PT-IR) spectroscopy was used to analyze the structures of the hybrids. The swelling ability and the cytocompatibility of the hybrids were investigated as a function of the GPSM concentration. The swelling of the hybrids was suppressed by addition of GPSM. MG63 human osteoblastic cells were cultured on the hybrids. The adhesion and proliferation of the MG63 cells cultured on the chitosan-GPSM hybrid surface were improved comparing to that on chitosan membrane, regardless the GPSM concentration.},
	keywords = {Biocompatibility, Biological membranes, biosynthesis, Cell culture, Cells, chitosan, Chitosan-inorganic hybrid, Crosslinking, Cytocompatibility, Fourier transform infrared spectroscopy, Nuclear magnetic resonance spectroscopy, Organic polymers, Osteoblastic cell (MG63), Structural analysis, Synthetic polymers, Tissue, Tissue engineering, γ-Glycidoxypropyltrimethoxysilane (GPSM)},
	isbn = {10139826 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0346885502\&partnerID=40\&md5=80d45c86bb14c57c3b1a6b94b435e45d},
	author = {Shirosaki, Y. and Tsuru, K. and Hayakawa, S. and Osaka, A. and Lopes, M.A. and Santos, J.D. and Fernandes, M.H.},
	editor = {Barbosa M.A. and Monteiro F.J. and Correia R. and Leon B.}
}
@book {2499,
	title = {In Vitro Mineralisation of Human Bone Marrow Cells Cultured on Bonelike{\textregistered}},
	series = {Key Engineering MaterialsKey Eng Mat},
	volume = {254-256},
	year = {2004},
	note = {Conference code: 62053Cited By (since 1996): 6Export Date: 21 November 2012Source: ScopusCODEN: KEMAELanguage of Original Document: EnglishCorrespondence Address: Costa, M.A.; Inst. Cie. Blomed. de Abel Salazar, Universidade do Porto, Largo Abel Salazar, 4000 Porto, PortugalReferences: Santos, J.D., Campbell, J.K., Winston, G.H., European Patent N{\textdegree} WO0068164, 2000Lopes, M.A., Knowles, J.C., Santos, J.D., (2000) Biomaterials, 21, p. 1905;Lopes, M.A., Monteiro, F.J., Santos, J.D., (1999) J. Biomed. Mater. Res.:App. Biomater., 48, p. 734; 
Lopes, M.A., Knowles, J.C., Kuru, L., Santos, J.D., Monteiro, F.J., Olsen, I., (1998) J. Biomed. Mater. Res., 41, p. 649; 
Lopes, M.A., Knowles, J.C., Santos, J.D., Monteiro, F.J., Olsen, I., (2000) Biomaterials, 21, p. 1165; 
Ferraz, M.P., Fernandes, M., Santos, J.D., Monteiro, F.J., (2001) J. Mat. Sci.: Mat. Med., 12, p. 629; 
Lopes, M.A., Santos, J.D., Monteiro, F.J., Ohtsuki, C., Osaka, A., Kaneko, S., Inoue, H., (2001) J. Biomed. Mater. Res., 54, p. 463; 
Duarte, F., Santos, J.D., Afonso, A., Advanced Materials Forum, , in press; 
Coelho, M.J., Fernandes, M.H., (2000) Biomaterials, 21, p. 1095; 
Kleerekoper, M., (1996) Principles of Bone Biology, p. 1053. , Academic Press
},
	month = {2004///},
	pages = {821 - 824},
	address = {Porto},
	abstract = {Bonelike{\textregistered} is a CaO-P                        2O
                        5 based glass-reinforced hydroxyapatite (HA) designed to mimic the inorganic composition of the bone tissue. This work evaluates the response of human bone marrow cells to Bonelike{\textregistered} concerning cell proliferation and osteoblast differentiation. HA was used as control material. Results showed that Bonelike{\textregistered} allowed the proliferation of bone marrow cells and their complete differentiation, as evidenced by the formation of cell-mediated mineralisation. In comparison with HA, Bonelike{\textregistered} had a positive effect on the expression of alkaline phosphatase and also on the formation of a mineralised matrix, two osteoblast markers.
},
	keywords = {Bone, Bonelike{\textregistered}, Cell culture, cell proliferation, Composition, Grafts, Human bone marrow cells, hydroxyapatite, In vitro mineralisation, mineralization, Scanning electron microscopy, Sintering, X ray diffraction},
	isbn = {10139826 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0346255201\&partnerID=40\&md5=470ac94fd75d1a53b887d44f59fbf7d1},
	author = {Costa, M.A. and Gutierres, M. and Almeida, L. and Lopes, M.A. and Santos, J.D. and Fernandes, M.H.},
	editor = {Barbosa M.A. and Monteiro F.J. and Correia R. and Leon B.}
}
@book {2487,
	title = {In Vivo Behaviour of Bonelike{\textregistered}/PLGA Hybrid: Histological Analysis and Peripheral Quantitative Computed Tomography (pQ-CT) Evaluation},
	series = {Key Engineering MaterialsKey Eng Mat},
	volume = {254-256},
	year = {2004},
	note = {Conference code: 62053Cited By (since 1996): 1Export Date: 21 November 2012Source: ScopusCODEN: KEMAELanguage of Original Document: EnglishCorrespondence Address: Oliveira, J.M.; Inst. de Engenharia Biom{\'e}dica, Lab. de Biomaterials, Rua do Campo Alegre, 823, 4150-180 Porto, Portugal; email: jmoliv@fe.up.ptReferences: Solheim, E., Pinholt, E., Bang, G., (1992) Journal Neurosurgery, 76, pp. 275-279;Laurecin, C.T., Attawia, M.A., Lu, L.Q., Borden, M.D., Lu, H.H., Gorum, W.J., Lieberman, J.R., (2001) Biomaterials, 22, pp. 1271-1277; 
Nielsen, F.F., Karring, T., Gogolewski, S., (1992) Acta Orthop Scandinavica, 63, pp. 66-69; 
Jiang, G., Woo, B.H., Kang, F., Singh, J., Deluca, P.P., (2002) Journal of Controlled Release, 79, pp. 137-145; 
Duarte, F., Lopes, M.A., Santos, J.D., European Cells and Materials, , in press; 
Duarte, F., Afonso, A., Santos, J.D., Advanced Materials Forum, , in press; 
Oliveira, J.M., Lopes, M.A., Kawai, T., Ohtsuki, C., Santos, J.D., Afonso, A., Advanced Materials Forum, , in press; 
Santos, J.D., Campbell, J.K., Winton, G.H., European Patent N{\textdegree} W00068164 (2000)Oliveira, J.M., Miyazaki, T., Lopes, M.A., Ohtsuki, C., Santos, J.D., Biomaterials, , submitted
},
	month = {2004///},
	pages = {565 - 568},
	address = {Porto},
	abstract = {The present work consisted in assessing the in vivo biological behaviour of novel Bonelike{\textregistered}/PLGA hybrid materials through subcutaneous and tibiae implantations for a 4 week period using an animal model. No sign of inflammation was observed as a result of subcutaneous implantation, which reveals that these materials were well-tolerated by the soft tissues. pQ-CT analysis demonstrated that the implanted materials were highly osteointegrated in bone tissue. SEM analysis at bone defect area revealed that Bonelike{\textregistered} resorption occurred after 4 weeks of implantation. Although the osteoconductive properties of Bonelike{\textregistered} have been reported in literature, the present work allowed to demonstrate that the silane-coupling agent and the PLGA treatments do not significantly modify the biological performance of Bonelike{\textregistered}. This result is strongly encouraging since Bonelike{\textregistered}/PLGA hybrid materials are being developed for bone tissue healing/regeneration purposes with simultaneous delivery of therapeuthic molecules.},
	keywords = {Biodegradation, Bonelike{\textregistered}, Computerized tomography, Histological analysis, histology, hydroxyapatite, In vivo studies, Organic polymers, PLGA, pQ-CT, Silanes, Sintering, Synthetic polymers, Tibiae implantations, Tissue},
	isbn = {10139826 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0346255223\&partnerID=40\&md5=1d0c1ad508daa6b14d2d3aeabf5fff65},
	author = {Oliveira, J.M. and Kawai, T. and Lopes, M.A. and Ohtsuki, C. and Santos, J.D. and Afonso, A.},
	editor = {Barbosa M.A. and Monteiro F.J. and Correia R. and Leon B.}
}
@article {2481,
	title = {Inflammatory responses and cell adhesion to self-assembled monolayers of alkanethiolates on gold},
	journal = {BiomaterialsBiomaterials},
	volume = {25},
	year = {2004},
	note = {Cited By (since 1996): 34Export Date: 21 November 2012Source: ScopusCODEN: BIMADdoi: 10.1016/j.biomaterials.2003.09.047PubMed ID: 14751741Language of Original Document: EnglishCorrespondence Address: Barbosa, J.N.; INEB - Inst. de Engenharia Biomedica, Laborat{\'o}rio de Biomaterials, Rua do Campo Alegre 823, 4150-180 Porto, Portugal; email: judite@ibmc.up.ptChemicals/CAS: Gold, 7440-57-5; Sulfhydryl CompoundsReferences: Tang, L., Jiang, W., Welty, S.E., The participation of P- and E-selectins on biomaterial-mediated tissue responses (2002) J Biomed Mater Res, 62, pp. 471-477;Thomsen, P., Gretzer, C., Macrophage interactions with modified material surfaces (2001) Curr Opin Solid State Mater Sci, 5, pp. 163-176; 
Kao, W.J., Liu, Y., Gundloori, R., Li, J., Lee, D., Einerson, N., Burmania, J., Stevens, K., Engineering endogenous inflammatory cells as delivery vehicles (2002) J Control Release, 78, pp. 219-233; 
Anderson, J.M., Mechanisms of inflammation and infection with implanted devices (1993) Cardiovasc Pathol, 2, pp. 33S-41S; 
Anderson, J.M., Inflammatory response to implants (1988) ASAIO J, 11, pp. 101-107; 
Babensee, J.E., Anderson, J.M., McLntire, L.V., Mikos, A.G., Host response to tissue engineered devices (1998) Adv Drug Deliver Rev, 33, pp. 111-139; 
Mrksich, M., Whitesides, G.M., Interactions of SAMs with proteins (1996) Annu Rev Biophys Biomol Struct, 25, pp. 55-57; 
Ulman, A., Formation and structure of self-assembled monolayers (1996) Chem Rev, 96, pp. 1533-1554; 
Mrksich, M., Tailored substrates for studies of attached cell culture (1998) Cell Mol Life Sci, 54, pp. 653-662; 
Nuzzo, R.G., Allara, D.L., Adsorption of biofunctional organic dissulfides on gold surfaces (1983) J Am Chem Soc, 105, pp. 4481-4483; 
Pan, S., Castner, D.G., Ratner, B.D., Multitechnique surface characterization of derivatization efficiencies for hydroxyl-terminated self-assembled monolayers (1998) Langmuir, 14, pp. 3545-3550; 
Sedwick, A.D., Sin, Y.M., Edwards, J.C., Willoughby, D.A., Increased inflammatory reactivity in newly formed lining tissue (1983) J Pathol, 141, pp. 483-495; 
Castro, A.G., Esaguy, N., MacEdo, P.M., {\'A}guas, A.P., Silva, M.T., Live but not heat-killed mycobacteria cause rapid chemotaxis of large numbers of eosinophils in vivo and are ingested by the attracted granulocytes (1991) Infect Immun, 59, pp. 3009-3014; 
Isaji, M., Momose, Y., Naito, J., Enhancement of inflammatory reactions in a non-immunological air pouch model in rats (1989) Br J Exp Pathol, 70, pp. 705-716; 
Tegoulia, V.A., Cooper, S.L., Leukocyte adhesion on model surfaces under flow: Effects of surface chemistry, protein adsorption, and shear rate (2000) J Biomed Mater Res, 50, pp. 291-301; 
Lin, J., Chuang, W., Synthesis, surface characterization, and platelet reactivity evaluation for the self-assembled monolayer of alkanethiol with sulfonic acid functionality (2000) J Biomed Mater Res, 51, pp. 413-423; 
Hooper, K.A., Nickolas, T.L., Yurkow, E.J., Kohn, J., Laskin, D., Characterization of the inflammatory response to biomaterials using a rodent air pouch model (2000) J Biomed Mater Res, 50, pp. 365-374; 
Wooley, P.H., Morren, R., Andary, J., Sud, S., Yang, S., Mayton, L., Markel, D., Nasser, S., Inflammatory responses to orthopaedic biomaterials in the murine air pouch (2002) Biomaterials, 23, pp. 517-526; 
Gelb, H., Schumacher, H.R., Cuckler, J., Ducheyne, P., Baker, D.G., In vivo inflammatory response to polymethylmethacrylate particulate debris: Effect of size, morphology, and surface area (1994) J Orthop Res, 12, pp. 83-92; 
Wooley, P.H., Mayton, L., Sud, S., Nasser, S., Synergistic inflammatory responses to metallic and polymeric particles in the murine air pouch model of aseptic loosening (1996) Arthritis Rheum, 39, pp. 175-183; 
Moore, R., Beredjiklian, P., Rhoad, R., Theiss, S., Cuckler, J., Ducheyne, P., Baker, D.G., A comparison of the inflammatory potential of particulates derived from two composite materials (1997) J Biomed Mater Res, 34, pp. 137-147; 
Krause, T.J., Robertson, F.M., Greco, R.S., Measurement of intracellular hydrogen peroxide induced by biomaterials implanted in a rodent air pouch (1993) J Biomed Mater Res, 27, pp. 65-69; 
Yang, S., Ren, W., Park, Y., Sieving, A., Hsu, S., Nasser, S., Wooley, P.H., Diverse cellular and apoptotic responses to variant shapes of UHMWPE particles in a murine model of inflammation (2002) Biomaterials, 23, pp. 3535-3543; 
Lindblad, M., Lestelius, M., Johansson, A., Tengvall, P., Thomsen, P., Cell and soft tissue interactions with methyl- and hydroxyl-terminated alkanethiols on gold surfaces (1997) Biomaterials, 18, pp. 1059-1068; 
Tengvall, P., Askendal, A., Lundsr{\"o}m, I., Complement activation by 3-mercapto-1,2-propanediol immobilized on gold surfaces (1996) Biomaterials, 17, pp. 1001-1007; 
Liu, L., Elwing, H., Complement activation on thiol-modified gold surfaces (1996) J Biomed Mater Res, 30, pp. 535-541; 
Tang, L., Liu, L., Elwing, H.B., Complement activation and inflammation triggered by model biomaterial surfaces (1998) J Biomed Mater Res, 41, pp. 333-340; 
K{\"a}lltorp, M., Oblogina, S., Jacobsson, S., Karlsson, A., Tengvall, P., Thomsen, P., In vivo cell recruitment, cytokine release and chemiluminescence response at gold, and thiol functionalized surfaces (1999) Biomaterials, 20, pp. 2123-2137; 
Tang, L., Ugarova, T.P., Plow, E.F., Eaton, J.W., Molecular determinants of acute inflammatory responses to biomaterials (1997) J Clin Invest, 97, pp. 1329-1334; 
Hu, W., Eaton, J.W., Tang, L., Molecular basis of biomaterial-mediated foreign body reactions (2001) Blood, 98, pp. 1231-1238; 
Silver, J.H., Hergenrother, R.W., Lin, J., Lim, F., Lin, H., Okada, T., Chaudhury, M.K., Cooper, S.L., Surface and blood-contacting properties of alkylsiloxane monolayers supported on silicone rubber (1995) J Biomed Mater Res, 29, pp. 535-548; 
Werth{\'e}n, M., Sellborn, A., K{\"a}lltorp, M., Elwing, H., Thomsen, P., In vitro study of monocyte viability during the initial adhesion to albumin- and fibrinogen-coated surfaces (2001) Biomaterials, 22, pp. 827-832; 
Tang, L., Eaton, J.W., Fibrin(ogen) mediates acute inflammatory responses to biomaterials (1993) J Exp Med, 178, pp. 2147-2156; 
Liu, L., Elwing, H., Complement activation on solid surfaces as determined by C3 deposition and hemolytic consumption (1994) J Biomed Mater Res, 28, pp. 767-773; 
Tengvall, P., Askendal, A., Lundstrom, I., Complement activation by IgG immobilized on methylated silicon (1996) J Biomed Mater Res, 31, pp. 305-312; 
K{\"a}lltorp, M., Askendal, A., Thomsen, P., Tengvall, P., Ellipsometric studies in vitro on kinetics of rat complement activation (1999) J Biomed Mater Res, 44, pp. 222-225; 
Barbosa, J.N., Barbosa, M.A., {\'A}guas, A.P., Adhesion of human leukocytes to biomaterials: An in vitro study using alkanethiolate monolayers with different chemically functionalized surfaces (2003) J Biomed Mater Res, 65, pp. 429-434
},
	month = {2004///},
	pages = {2557 - 2563},
	abstract = {The acute inflammatory response and the adhesion of cells to self-assembled monolayers (SAMs) of well-defined surface chemistry was studied in vivo using a rodent air-pouch model of inflammation. SAMs with three different terminal functional groups (OH, COOH and CH                        3) were implanted in subcutaneous air pouches induced in BALB/c mice. After 24h, inflammatory cells were recovered from the air pouches and the implants were removed and prepared for observation by scanning electron microscopy (SEM). The implants coated with OH and CH
                        3, were found to cause the highest recruitment of inflammatory cells into the subcutaneous pouches. Polymorphonuclear neutrophils (PMNs) leukocytes predominated over mononuclear cells in inflammatory exudates of SAMs-coated implants, the opposite being found in uncoated implants (controls). CH
                        3-coated implants induced the highest number of inflammatory cells and also the largest percentage of PMNs seen in the subcutaneous pouches. Control and OH-covered implants presented the higher densities of attached inflammatory cells detected by SEM. In contrast, the CH
                        3-coated implants showed a very low density of cells adherent to the implant surface. We conclude that the chemical nature and the degree of hydrophobicity of the surface of implants modulate both the local acute inflammatory reaction and the adhesion of leukocytes. {\textcopyright} 2003 Elsevier Ltd. All rights reserved.
},
	keywords = {Air-pouch model, alkane derivative, animal cell, animal experiment, animal model, Animals, article, Biomaterials, cell adhesion, Cell culture, cell density, cell surface, Cell-surface interactions, controlled study, exudate, gold, gold complex, hydrophobicity, implantation, Inflammation, Inflammatory responses, leukocyte, Leukocytes, male, material coating, Mice, Mice, Inbred BALB C, Microscopy, Electron, Scanning, mouse, neutrophil, nonhuman, polymorphonuclear cell, priority journal, Rodentia, Scanning electron microscopy, Self assembly, Self-assembled monolayers, Sulfhydryl Compounds, Surface chemistry, surface property},
	isbn = {01429612 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0742324843\&partnerID=40\&md5=4fc63f7a8a6d1c445f0be27356884543},
	author = {Barbosa, J.N. and Barbosa, M.A.A. and {\'A}guas, A.P.}
}
@book {2491,
	title = {Mineralised membranes for bone regeneration},
	series = {Key Engineering MaterialsKey Eng Mat},
	volume = {254-256},
	year = {2004},
	note = {Conference code: 62053Cited By (since 1996): 1Export Date: 21 November 2012Source: ScopusCODEN: KEMAELanguage of Original Document: EnglishCorrespondence Address: Mesquita, P.; Inst. de Engenharia Biom{\'e}dica, R. do Campo Alegre 823, 4150-180 Porto, PortugalReferences: Baron, M., Haas, R., D{\"o}rtbudak, O., Watzek, G., Experimentally induced peri-implantitis: A review (2000) Int J Oral Maxillofac Implants, 15, pp. 533-544;Hammerle, C.H., Jung, R.E., Feloutzis, A., A systematic review of the survival of implants in bone sites augmented with barrier membranes (guided bone regeneration) in partially edentulous patients (2002) J Clin. Periodontol., 29 (SUPPL. 3), pp. 226-231; 
Brunel, G., Brocard, D., Duffort, J.F., Jacquet, E., Justumus, P., Simonet, T., Benque, E., Bioabsorbable materials for guided bone regeneration prior to implant placement and 7-year followup: Report of 14 cases (2001) J Periodontol., 72 (2), pp. 257-264; 
Karapati, S., Hugson, A., Kugelberg, C.F., Healing following GTR treatment of bone defects distal to mandibular 2 nd molars after removal of impacted 3 rd molars (2000) J. Clin. Periodontol., 27, pp. 325-332; 
Sim{\~o}es, R., Fonseca, L., Vasconcelos, M., Afonso, A., Cavalheiro, J., Modified exoskeleton of shrimp for guided bone regeneration (2002) 17 th ESB, , Barcelona, Spain, September
},
	month = {2004///},
	pages = {1091 - 1094},
	address = {Porto},
	abstract = {Guided bone regeneration can be achieved using filling biomaterials and protective membranes. The aim of this work is to study a new membrane prepared from shrimp shells, without modification of the natural concave shape. The "in vitro" bioactivity was evaluated using a simulated body fluid prepared with substitution of calcium by strontium (SBR-Sr). The bioactivity behaviour was increased using a surface treatment with sodium silicate. The "in vitro" and "in vivo" tests allow to conclude that these membranes are bioactive and can induce bone growth on their surfaces.},
	keywords = {Biological membranes, biomaterial, Biomaterials, Bone, Bone Regeneration, Calcium, Ceramic materials, Deproteinization, Membrane, Mineralised membranes, Natural material, Optical microscopy, Shear strength, Sodium compounds, Strontium, Substitution reactions},
	isbn = {10139826 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0348145956\&partnerID=40\&md5=51d6fa431f03c745e2def45321a0dfa0},
	author = {Mesquita, P. and Branco, R. and Afonso, A. and Vasconcelos, M. and Cavalheiro, J.},
	editor = {Barbosa M.A. and Monteiro F.J. and Correia R. and Leon B.}
}
@article {2466,
	title = {A model for educational simulation of infant cardiovascular physiology},
	journal = {Anesthesia and AnalgesiaAnesth. Analg.},
	volume = {99},
	year = {2004},
	note = {Cited By (since 1996): 19Export Date: 21 November 2012Source: ScopusCODEN: AACRAdoi: 10.1213/01.ANE.0000134797.52793.AFPubMed ID: 15562049Language of Original Document: EnglishCorrespondence Address: Goodwin, J.A.; Nemours Children{\textquoteright}s C., 807 Children{\textquoteright}s Way, Jacksonville, FL 32207, United States; email: jgoodwin@nemours.orgReferences: Good, M.L., Gravenstein, J.S., Training for safety in an anesthesia simulator (1993) Semin Anesth, 12, pp. 235-250;Gaba, D.M., DeAnda, A., The response of anesthesia trainees to simulated critical incidents (1989) Anesth Analg, 68, pp. 444-451; 
Howard, S.K., Gaba, D.M., Fish, K.J., Anesthesia crisis resource management training: Teaching anesthesiologists to handle critical incidents (1992) Aviat Space Environ Med, 63, pp. 763-770; 
Euliano, T.Y., Caton, D., Van Meurs, W., Good, M.L., Modeling obstetric cardiovascular physiology on a full-scale patient simulator (1997) J Clin Monit, 13, pp. 293-297; 
Halamek, L.P., Kaegi, D.M., Gaba, D.M., Time for a new paradigm in pediatric medical education: Teaching neonatal resuscitation in a simulated delivery room environment (2000) Pediatrics, 106, pp. E45; 
Beneken, J.E.W., (1965) A Mathematical Approach to Cardiovascular Function: The Uncontrolled Human System, , [PhD thesis]. Medisch Fysisch Institut TNO, Utrecht, The Netherlands; 
Beneken, J.E.W., DeWit, B., A physical approach to hemodynamic aspects of the human cardiovascular system (1967) Physical Bases of Circulatory Transport: Regulation and Exchange, pp. 1-45. , Reeve EB, Guyton AC, eds. Philadelphia: Saunders; 
Wesseling, K.H., Settels, J.J., Baromodulation explains short-term blood pressure variability (1985) Psychophysiology of Cardiovascular Control, pp. 69-97. , Orlebeke JF, Mulder G, van Doornen LJP, eds. New York: Plenum Press; 
Van Meurs, W.L., Good, M.L., Lampotang, S., Functional anatomy of full-scale patient simulators (1997) J Clin Monit, 13, pp. 317-324; 
Pruitt, A.W., Gersony, W.M., The cardiovascular system (1992) Nelson Textbook of Pediatrics. 14th Ed., pp. 1125-1227. , Behrman RE, ed. Philadelphia: Saunders; 
Gregory, G.A., Monitoring during surgery (1994) Pediatric Anesthesia, pp. 261-279. , Gregory GA, ed. New York: Churchill Livingstone; 
Graham Jr., T.P., Jarmakani, M.M., Evaluation of ventricular function in infants and children (1971) Pediatr Clin North Am, 18, pp. 1109-1132; 
Wodey, E., Plady, P., Copin, C., Comparative hemodynamic depression of sevoflurane versus halothane in infants (1997) Anesthesiology, 87, pp. 795-800; 
Suga, H., Sagawa, K., Shoukas, A.A., Load independence of the instantaneous pressure-volume ratio of the canine left ventricle and effects of epinephrine and heart rate on the ratio (1973) Circ Res, 2, pp. 314-322; 
Ten Voorde, B., (1992) Modeling the Baroreflex: A System Analysis Approach, , [PhD thesis]. Vakgroep Medische Fysica, Amsterdam, The Netherlands; 
Cunningham, M.D., Bedside pulmonary function testing of infants (1990) Essentials of Pediatric Intensive Care, pp. 878-883. , Levin DL, Morriss FC, eds. St. Louis: Quality Medical; 
Strafford, M.A., Cardiovascular physiology (1996) Smith{\textquoteright}s Anesthesia for Infants and Children, pp. 69-104. , Motoyama EK, Davis PJ, eds. St. Louis: Mosby; 
Lake, C.L., Cardiovascular anatomy and physiology (1992) Clinical Anesthesia, pp. 989-1020. , Barash PG, Cullen BF, Stoelting RK, eds. Philadelphia: Lippincott; 
Hsieh, K., Chen, P., Fu, S., A simple, noninvasive method to investigate vascular characteristics in children (1996) Angiology, 47, pp. 361-367; 
Stoelting, R.K., Miller, R.D., (2000) Basics of Anesthesia, pp. 364-375. , Philadelphia: Churchill Livingstone; 
Thilenius, O.G., Argilla, R.A., Angiographic right and left ventricular volume determination in normal infants and children (1974) Pediatr Res, 8, pp. 67-74; 
Drouin, E., Gournay, V., Calamel, J., Assessment of spontaneous baroreflex sensitivity in neonates (1997) Arch Dis Child Fetal Neonatal Ed, 76, pp. F108-12
},
	month = {2004///},
	pages = {1655 - 1664},
	abstract = {Full-body patient simulators provide the technology and the environment necessary for excellent clinical education while eliminating risk to the patient. The extension of simulator-based training into management of basic and critical situations in complex patient populations is natural. We describe the derivation of an infant cardiovascular model through the redefinition of a complete set of parameters for an existing adult model. Specifically, we document a stepwise parameter estimation process, explicit simplifying assumptions, and sources for these parameters. The simulated vital signs are within the target hemodynamic variables, and the simulated systemic arterial pressure wave form and left ventricular pressure volume loop are realistic. The system reacts appropriately to blood loss, and incorporation of aortic stenosis is straightforward. This infant cardiovascular model can form the basis for screen-based educational simulations. The model is also an essential step in attaining a full-body, model-driven infant simulator.},
	keywords = {aging, Algorithms, Anesthesiology, aorta stenosis, Aortic Valve Stenosis, arterial pressure, article, Baroreflex, biological model, bleeding, Blood Loss, Surgical, cardiovascular function, Cardiovascular physiology, Computer simulation, education, heart ventricle pressure, hemodynamic parameters, Hemodynamic Processes, Humans, Infant, Models, Biological, priority journal, Pulmonary Circulation, simulation, Ventricular Function, Left, Ventricular Function, Right},
	isbn = {00032999 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-9244231824\&partnerID=40\&md5=afb81c88d315abadfc3022fc3eba159a},
	author = {Goodwin, J.A. and van Meurs, W.L. and S{\'a} Couto, C.D. and Beneken, J.E.W. and Graves, S.A.}
}
@book {2492,
	title = {New Method for the Incorporation of Soluble Bioactive Glasses to Reinforce Porous HA Structures},
	series = {Key Engineering MaterialsKey Eng Mat},
	volume = {254-256},
	year = {2004},
	note = {Conference code: 62053Cited By (since 1996): 3Export Date: 21 November 2012Source: ScopusCODEN: KEMAELanguage of Original Document: EnglishCorrespondence Address: Lemos, A.F.; Dept. of Ceramic Engineering, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal; email: ilemos@cv.ua.ptReferences: De Groot, K., (1983) Bioceramics of Calcium Phosphates, , CRC Press, Boca Raton, FL;Wilson, L.L., Hench, J., (1993) An Introduction to Bioceramics, , World Scientific, UK; 
Hench, L.L., (1998) J. Am. Ceram. Soc., 81, p. 1075; 
Kohri, M., Miki, K., Waite, D.E., Nakajima, H., Okabe, T., (1993) Biomaterials, 14, p. 299; 
Krivak, N., Tas, A.C., (1998) J. Am. Ceram. Soc., 81, p. 2245; 
Santos, J.D., Knowles, J.C., Reis, R.L., Monteiro, F.J., Hastings, G.W., (1994) Biomaterials, 15, p. 5; 
Lopes, M.A., Knowles, J.C., Santos, J.D., Monteiro, F.J., Olsen, I., (1998) J. Biomed. Mater. Res., 41, p. 649; 
Lemos, A.F., Santos, J.D., Ferreira, J.M.F., (2003) Advanced Materials Forum
},
	month = {2004///},
	pages = {1033 - 1036},
	address = {Porto},
	abstract = {The most widely used calcium-phosphate ceramic in clinical applications is hydroxyapatite, Ca                        10(PO
                        4)
                        6(OH)
                        2, however its dissolution rate in the human body after implantation is too low to achieve good results and it has poor mechanical properties. Recently, glass reinforced hydroxyapatite composites (GR-HA) have been developed, in order to improve the mechanical properties and to increase the similarity between implants and bone. The addition of a P
                        2O
                        5 based glass to a hydroxyapatite matrix, promotes the liquid phase sintering, improving the mechanical properties of the final bodies, and enabling the formation of two other calcium-phosphate phases, which have a higher dissolution rate, more compatible with bone regeneration. However, some of these glass compositions are soluble in water, making their incorporation in aqueous slurry impossible. Therefore, the aim of the present work is to study a new alternative method for the incorporation of soluble P
                        2O
                        5 based glass into macroporous structures obtained by different methods.
},
	keywords = {Bioactivation, Bioactive glass, Biocompatibility, Bone, Dissolution, glass, hydroxyapatite, Liquid phase sintering, Macroporous structures, Microstructure, Porous materials, Reinforced hydroxyapatite, Sintering, Slurries},
	isbn = {10139826 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0348145989\&partnerID=40\&md5=18598c198e7e03dbf785151b7033c392},
	author = {Lemos, A.F. and Santos, J.D. and Ferreira, J.M.F.},
	editor = {Barbosa M.A. and Monteiro F.J. and Correia R. and Leon B.}
}
@book {2497,
	title = {Porous Hydroxyapatite and Glass Reinforced Hydroxyapatite for Controlled Release of Sodium Ampicillin},
	series = {Key Engineering MaterialsKey Eng Mat},
	volume = {254-256},
	year = {2004},
	note = {Conference code: 62053Cited By (since 1996): 5Export Date: 21 November 2012Source: ScopusCODEN: KEMAELanguage of Original Document: EnglishCorrespondence Address: Queiroz, A.C.; Inst. de Engenharia Biom{\'e}dica, Laborat{\'o}rio de Biomateriais, Rua do Campo Alegre, 823, 4150-180 Porto, Portugal; email: aqueiroz@ineb.up.ptReferences: Krejci, C.B., Bissada, N.F., Farah, C., Greenwell, H., (1987) J Periodontol, 58, pp. 521-528;Seymour, R.A., Heasman, P.A., MacGregor, I.D.M., The pathogenesis of periodontal disease (1992) Drugs, Diseases, and the Periodontium, pp. 1-10. , MacGregor IDM, editor. Oxford: Oxford University Press; 
Steinberg, D., Friedman, M., Soskolne, A., Sela, M.N., (1990) J Periodontol, 61, pp. 393-398; 
Santos, J.D., Silva, P.L., Knowles, J.C., Talal, S., Monteiro, F.J., (1996) J Mater Sci: Mater Med, 7, pp. 187-189; 
Ferraz, M.P., Monteiro, F.J., Santos, J.D., (1999) J Biomed Mat Res, 45, pp. 376-383; 
Queiroz, A.C., Teixeira, S., Santos, J.D., Monteiro, F.J., Key Engineering Materials, , submitted; 
Nishihara, K., (1993) Clin Materials, 12, pp. 159-167; 
Queiroz, A.C., Santos, J.D., Monteiro, F.J., Gibson, I.R., Knowles, J.C., (2001) Biomaterials, 22, pp. 1393-1400
},
	month = {2004///},
	pages = {997 - 1000},
	address = {Porto},
	abstract = {Porous hydroxyapatite (HA) and glass reinforced hydroxyapatite (GRHA) with adequate macro and microporous structure were developed, aiming at being used as drug delivery carrier of antibiotics, for the in situ treatment of periodontitis. Materials were characterised by XRD and FTIR, presenting no changes from similar dense materials. Mercury intrusion porosimetry revealed micropores of less than 1 μm, accounting for 15\% of the total porosity. Compression tests have shown close values for HA and GRHA, with the former showing slightly higher values of strength. Ampicillin adsorption was more effective on porous than on dense HA, and was similar for HA and GRHA.},
	keywords = {Adsorption, Antibiotics, Coatings, Dense materials, Diseases, Drug delivery, Drug dosage, Fourier transform infrared spectroscopy, glass, Glass reinforced hydroxyapatite, hydroxyapatite, Mercury (metal), Porous, Porous materials, Scanning electron microscopy, Sodium, Strength of materials, Ultraviolet spectroscopy, X ray diffraction analysis},
	isbn = {10139826 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0347516111\&partnerID=40\&md5=a85b6393d2a4a2d3ee4b384bf4c3de78},
	author = {Queiroz, A.C. and Teixeira, S. and Santos, J.D. and Monteiro, F.J.},
	editor = {Barbosa M.A. and Monteiro F.J. and Correia R. and Leon B.}
}
@book {2490,
	title = {Preparation and Characterization of Calcium Phosphate Nanoparticles},
	series = {Key Engineering MaterialsKey Eng Mat},
	volume = {254-256},
	year = {2004},
	note = {Conference code: 62053Cited By (since 1996): 1Export Date: 21 November 2012Source: ScopusCODEN: KEMAELanguage of Original Document: EnglishCorrespondence Address: Manuel, C.M.; Inst. de Engenharia Biom{\'e}dica, Lab. de Biomaterials, Universidade do Porto, Rua do Campo Alegre, 823, 4150 -180 Porto, Portugal; email: cmmanuel@fe.up.ptReferences: Manuel, C.M., Ferraz, M.P., Monteiro, F.J., (2003) Key Engineering Materials, pp. 240-242;Jarcho, M., Bolen, C.H., Thomas, M.B., Bobick, J., Doremus, R.H., (1976) J Mat Sci, pp. 2027-2035; 
Jarcho, M., Salsbury, R.L., Thomas, M.B., Doremus, R.H., (1979) J Mat Sci, pp. 142-150; 
Puleo, D.A., Holleran, L.A., Doremus, R.H., Bizios, R., (1991) J Biomed Mat Res, 25, pp. 711-723; 
Fowler, B.O., Moreno, E.C., Brown, W.E., (1966) Arch. Oral Biol., 11, pp. 477-492
},
	month = {2004///},
	pages = {903 - 906},
	address = {Porto},
	abstract = {In this work, CaP nanoparticles were prepared by wet chemical precipitation using three different approaches and were characterised and quantified in terms of their composition. Different precipitating, ageing and drying temperatures were applied and affected HA to TCP ratio. Sintering induced formation of large agglomerates and affected the relative composition, specifically, increased concentrations of TCP as proved by SEM, FTIR and XRD. Different reactants also affected chemical final product composition. Contacts with fibroblasts and osteoblasts revealed better adhesion to sintered substrates.},
	keywords = {Agglomeration, Bioceramics, Biocompatibility, Bone, Calcium Compounds, Cell culture, Cytocompatibility, Fourier transform infrared spectroscopy, hydroxyapatite, nanoparticles, Nanostructured materials, orthopedics, Precipitation (chemical), Scanning electron microscopy, Synthesis (chemical), Tricalcium phosphate, Wet chemical precipitation, X ray diffraction analysis},
	isbn = {10139826 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0346885495\&partnerID=40\&md5=a9f5b3807570c06984809bcb048ffc33},
	author = {Manuel, C.M. and Foster, M. and Monteiro, F.J. and Ferraz, M.P. and Doremus, R.H. and Bizios, R.},
	editor = {Barbosa M.A. and Monteiro F.J. and Correia R. and Leon B.}
}
@article {2473,
	title = {Protein electrostatic self-assembly on poly(DL-lactide) scaffold to promote osteoblast growth},
	journal = {Journal of Biomedical Materials Research - Part B Applied BiomaterialsJ. Biomed. Mater. Res. Part B Appl. Biomater.},
	volume = {71},
	year = {2004},
	note = {Cited By (since 1996): 14Export Date: 21 November 2012Source: ScopusCODEN: JBMRGdoi: 10.1002/jbm.b.30080PubMed ID: 15368240Language of Original Document: EnglishCorrespondence Address: Ji, J.; Dept. of Poly. Sci. and Engineering, Zhejiang University, Hangzhou 310027, China; email: jianji@mail.hz.zj.cnChemicals/CAS: DNA, 9007-49-2; gelatin, 9000-70-8; polyethyleneimine, 74913-72-7; polylactide, 26680-10-4; DNA, 9007-49-2; Gelatin, 9000-70-8; poly(lactide), 26969-66-4; PolyestersReferences: Anselme, K., Osteoblast adhesion on biomaterials (2000) Biomaterials, 21, pp. 667-681;Kim, B.S., Mooney, D.J., Development of biocompatible synthetic extracellular matrices for tissue engineering (1998) Trend Biotechnol, 16, pp. 224-230; 
Hunter, A., Archer, C.W., Walker, P.S., Blunn, G.W., Attachment and proliferation of osteoblasts and fibroblasts on biomaterials for orthopaedic use (1995) Biomaterials, 16, pp. 287-295; 
Goldstein, A.S., Juarez, T.M., Helmke, C.D., Gustin, M.C., Mikos, A.G., Effect of convection on osteoblastic cell growth and function in biodegradable polymer foam scaffolds (2001) Biomaterials, 22, pp. 1279-1288; 
Liao, H., Andersson, A.S., Sutherland, D., Petronis, S., Kasemo, B., Thomsen, P., Response of rat osteoblast-like cells to microstructured model surfaces in vitro (2003) Biomaterials, 24, pp. 649-654; 
Bertrand, P., Jonas, A., Laschewsky, A., Legras, R., Ultrathin polymer coatings by complexation of polyelectrolytes at interfaces: Suitable materials, structure and properties (2000) Macromol Rapid Commun, 21, pp. 319-348; 
Ulman, A., Formation and structure of self-assembled monolayers (1996) Chem Rev, 96, pp. 1533-1554; 
Sano, M., Lvov, Y., Kunitake, T., Formation of ultrathin polymer layers on solid substrates by means of polymerization-induced epitaxy and alternate adsorption (1996) Ann Rev Mater Sci, 26, pp. 153-187; 
Laschewsky, A., Ultrathin polymer coatings by self-organization techniques. A critical comparison (1997) Eur Chem Chron, 2, pp. 13-24; 
Park, S.Y., Barrett, C.J., Rubner, M.F., Mayes, A.M., Anomalous adsorption of polyelectrolyte layers (2001) Macromolecules, 34, pp. 3384-3388; 
Sullivan, D.M., Bruening, M.L., Ultrathin, ion-selective polyimide membranes prepared from layered polyelectrolytes (2001) J Am Chem Soc, 123, pp. 11805-11806; 
Chluba, J., Voegel, J.C., Decher, G., Erbacher, P., Schaaf, P., Ogier, J., Peptide hormone covalently bound to polyelectrolytes and embedded into multilayer architectures conserving full biological activity (2001) Biomacromolecules, 2, pp. 800-805; 
Iler, R.K., Multilayers of colloidal particles (1966) J Colloid Interface Sci, 21, pp. 569-594; 
Decher, G., Hong, J.D., Buildup of ultrathin multilayer films by a self-assembly process: II. Consecutive adsorption of anionic and cationic bipolar amphiphiles and polyelectrolytes on charged surfaces (1991) Ber Bunsenges Phys Chem, 95, pp. 1430-1434; 
Decher, G., Fuzzy nanoassemblies: Toward layered polymeric multicomposites (1997) Science, 277, pp. 1232-1237; 
Lvov, Y., Decher, G., Moehwald, H., Assembly, structural characterization, and thermal behavior of layer-by-layer deposited ultrathin films of poly(vinyl sulfate) and poly(allylamine) (1993) Langmuir, 9, pp. 481-486; 
Lvov, Y., Haas, H., Decher, G., Moehwald, H., Mikhailov, A., Mtchedlishvily, B., Morgunova, E., Vainshtein, B.S., Successive deposition of alternate layers of polyelectrolytes and a charged virus (1994) Langmuir, 10, pp. 4232-4236; 
Kleinfeld, E.R., Ferguson, G.S., Stepwise formation of multilayered nanostructural films from macromolecular precursors (1994) Science, 265, pp. 370-373; 
Hong, D., Lowack, K., Schmitt, J., Decher, G., Layer-by-layer deposited multilayer assemblies of polyelectrolytes and proteins: From ultrathin films to protein arrays (1993) Progr Colloid Polym Sci, 93, pp. 98-102; 
Schmitt, J., Grunewald, T., Decher, G., Pershan, P.S., Krajer, K., Loesche, M., Internal structure of layer-by-layer adsorbed poly-electrolyte films: A neutron and X-ray reflectivity study (1993) Macromolecules, 26, pp. 7058-7063; 
Korneev, D., Lvov, Y., Decher, G., Schmitt, J., Yaradaikin, S., Neutron reflectivity analysis of self-assembled film super lattices with alternate layers of deuterated and hydrogenated polystyrenesulfonate and polyallylamine (1995) Physica B, 213-214, pp. 954-956; 
Zhu, H., Ji, J., Tan, Q., Barbosa, M.A., Shen, J., Surface engineering of poly (DL-lactide) via electrostatic self-assembly of extracellular matrix-like molecules (2003) Biomacromolecules, 4, pp. 378-386; 
Zhu, Y., Gao, C., He, T., Liu, X., Shen, J., Layer-by-layer assembly to modify poly(1-lactic acid) surface toward improving its cytocompatibility to human endothelial cells (2003) Biomacromolecules, 4, pp. 446-452; 
Miko, A.G., Sarakinos, G., Vacanti, J.P., Langer, R.S., Cima, L.G., Biocompatible polymer membranes and methods of preparation of three dimensional membrane structures. U. S. Patent No. 5,514378; 1996Instructions: BCA Protein Assay Reagent Kit 23227, , Pierce; 
Smith, P.K., Krohn, R.I., Hermanson, G.T., Mallia, A.K., Gartner, F.H., Provenzano, M.D., Fujimoto, E.K., Klenk, D.C., Measurement of protein using bicinchoninic acid (1985) Anal Biochem, 150, pp. 76-85; 
(1998) Product Information: DNA Quantitation Kit Fluorescence Assay (DNA-QF), , SIGMA; 
West, D.C., Sattar, A., Kumar, S., A simplified in situ solubilization procedure for the determination of DNA and cell number in tissue cultured mammalian cells (1985) Anal Biochem, 147 (2), pp. 289-295; 
Mosmann, T., Rapid colorimetric assay for cellular growth and survival: Application to proliferation and cytotoxicity assays (1983) J Immunol Methods, 65, pp. 55-63; 
Zund, G., Ye, Q., Hoerstrup, S.P., Schoeberlein, A., Schmid, A.C., Grunenfelder, J., Vogt, P., Turina, M., Tissue engineering in cardiovascular surgery: MTT, a rapid and reliable quantitative method to assess the optimal human cell seeding on polymeric meshes (1999) Eur J Cardio-thoracic Surg, 15, pp. 519-524
},
	month = {2004///},
	pages = {159 - 165},
	abstract = {The development of protein coating on 3D biodegradable scaffold based on electrostatic self-assembly (ESA) to promote osteoblast growth is reported. Poly (ethylenimine) (PEI) was employed to obtain a stable positively charged surface on poly(DL-lactide) (PDL-LA) substrate. An extracellular-matrix (ECM)-like biomacromolecule, gelatin, was chosen as the polyelectrolyte to deposit on the activated PDL-LA substrate via ESA technique. Osteoblast (MC3T3) was then cultured on unmodified and gelatin-modified PDL-LA scaffolds. Osteoblast testing regarding total intracellular protein content, total DNA content, cell activity, and cell morphology on the ECM-like multilayer-modified PDL-LA scaffold showed that osteoblast growth was promoted. It will be easy to replace the gelatin with osteoinductive proteins or other polyelectrolytes to promote specific osteoblast functions. In comparison with conventional coating methods, polyelectrolyte multilayers are easy and stable to prepare. They may be a good choice for the surface modification of complex biomedical devices, especially for the 3D tissue-engineering scaffold. These very flexible systems allow broad medical applications for drug delivery and tissue engineering. {\textcopyright} 2004 Wiley Periodicals, Inc.},
	keywords = {3T3 Cells, Absorbable Implants, Activation analysis, animal cell, Animals, article, Biodegradation, Biomedical engineering, cell activity, cell adhesion, Cell Division, cell growth, cell level, cell protein, cell structure, cell surface, Cell-material interactions, Cells, Coating techniques, DNA, DNA content, Drug products, Electrostatics, ethylene derivative, extracellular matrix, gelatin, Gelation, Growth (materials), Kinetics, macromolecule, materials testing, Mice, Microscopy, Confocal, mouse, nonhuman, osteoblast, Osteoblast growth, Osteoblast testing, Osteoblasts, polyelectrolyte, Polyelectrolytes, Polyesters, Polyethyleneimine, polylactide, polymer, protein assembly, Proteins, Surface modification, Tissue, Tissue engineering},
	isbn = {00219304 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-4644230505\&partnerID=40\&md5=2c6499a5f15b19dfab9731021aa4639b},
	author = {Zhu, H. and Ji, J. and Barbosa, M.A. and Shen, J.}
}
@conference {2469,
	title = {Scheduling parallel tasks on heterogeneous clusters},
	booktitle = {Proceedings of the IASTED International Conference on Parallel and Distributed Computing and SystemsProc. IASTED INt. Conf. Parall. Distrib. Comput. Syst.},
	series = {Proceedings of the 16th IASTED International Conference on Parallel and Distributed Computing and Systems},
	volume = {16},
	year = {2004},
	note = {Conference code: 64182Export Date: 21 November 2012Source: ScopusArt. No.: 439-085Language of Original Document: EnglishCorrespondence Address: Barbosa, J.; Faculdade de Engenharia, Universidade do Porto, Inst. de Engenharia Biom{\'e}dica, Porto, Portugal; email: jbarbosa@fe.up.ptReferences: Amoura, A.K., Bampis, E., K{\"o}nig, J.-C., Scheduling algorithms for parallel gaussian elimination with communication costs (1998) IEEE Transactions on Parallel and Distributed Systems, 9 (7), pp. 679-686. , July;Barbosa, J., Padilha, A.J., Algorithm-dependent method to determine the optimal number of computers in parallel virtual machines (1998) VECPAR{\textquoteright}98, 1573. , Springer-Verlag LNCS; 
Barbosa, J., Tavares, J., Padilha, A., A group block distribution strategy for a heterogeneous ma chine (2002) Applied Informatics, pp. 378-383. , M. H. Hamza, editor. IASTED, ACTA Press, February; 
Barbosa, J., Tavares, J., Padilha, A.J., Linear algebra algorithms in a heterogeneous cluster of personal computers (2000) Proceedings of 9th Heterogeneous Computing Workshop, pp. 147-159. , IEEE CS Press, May; 
Berman, F., Wolski, R., Figueira, S., Schopf, J., Shao, G., Application-level scheduling on distributed heterogeneous networks (1996) Supercomputing, 96; 
Blazewicz, J., Dell{\textquoteright}Olmo, P., Drozdowski, M., Maczka, P., Scheduling multiprocessor tasks on parallel processors with limited availability (2003) European Journal of Operational Research, (149), pp. 377-389; 
Boudet, V., Rastello, F., Robert, Y., A proposal for a heterogeneous cluster ScaLAPACK(dense linear solvers) (1999) Proceedings of PDPTA, , CSREA Press; 
Boulet, P., Dongarra, J., Rastello, F., Robert, Y., Vivien, F., Algorithmic issues on heterogeneous computing platforms (1999) Parallel Processing Letters, 9 (2), pp. 197-213; 
Choi, J., Dongarra, J., Ostrouchov, L.S., Petitet, A.P., Walker, D.W., Whaley, R.C., The design and implementation of the ScaLAPACK LU, QR, and CHOLESKY factorization routines (1996) Scientific Programming, 5, pp. 173-184; 
Geijn, R., Watts, J., Summa: Scalable universal matrix multiplication algorithm (1995) Technical Report, CS-95-286. , University of Tennessee, Knoxville; 
Hopper, E., Turton, B.C.H., An empirical investigation of meta-heuristic and heuristic algorithms for a 2d packing problem (2001) European Journal of Operational Research, 128, pp. 34-57; 
Jansen, K., Scheduling malleable parallel tasks: An asymptotic fully polynomial time approximation scheme (2004) Algorithmica, 39, pp. 59-81; 
Lep{\`e}re, R., Mouni{\'e}, G., Trystram, D., An approximation algorithm for scheduling trees of malleable tasks (2002) European Journal of Operational Research, (142), pp. 242-249; 
Oh-Heum, Chwa, K.-Y., Scheduling parallel tasks with individual deadlines (1999) Theoretical Computer Science, 215, pp. 209-223; 
Shirazi, B., Wang, M., Pathak, G., Analysis and evaluation of heuristic methods for static task scheduling (1990) Journal of Parallel and Distributing Computing, 10, pp. 222-232; 
Topcuoglu, H., Hariri, S., Wu, M.-Y., Performance-effective and low-complexity task scheduling for heterogeneous computing (2002) IEEE Transactions on Parallel and Distributed Systems, 13 (3), pp. 260-274. , March; 
Trystram, D., Scheduling parallel applications using malleable tasks on clusters (2001) 15th International Conference on Parallel and Distributed Processing Symposium
Sponsors: Int. Association of Sci. and Technol. for Dev., IASTED; World Modelling and Simulation Forum (WMSF)},
	month = {2004///},
	pages = {449 - 454},
	address = {Cambridge, MA},
	abstract = {Parallel tasks, also called malleable tasks, are tasks that can be executed on any number of processors with its execution time being a function of the number of processors alloted to it. The scheduling of independent parallel tasks on homogeneous machines is a problem that has been extensively studied. For heterogeneous machines, with a diverse CPU capacity, new challenges arise, namely the selection of the set of CPUs that optimizes the processing time of a given task. This paper presents a methodology to determine the best allotment for each task that minimizes its processing time on a given heterogeneous machine. The aim is to improve the global processing time of a complex algorithm composed by several linear algebra kernels, by scheduling a number of parallel tasks in the heterogeneous machine. The results presented compare this approach to the simpler data parallel execution of each task on the heterogeneous cluster, i.e. executing one task at a time using the data parallel programming model.},
	keywords = {Computational complexity, Computer programming, CPU capacity, Data handling, Directed acyclic graphs (DAG), Graph theory, Heterogeneous clusters, Linear algebra, Parallel algorithms, Parallel processing systems, Parallel/malleable tasks, Program processors, Scheduling},
	isbn = {10272658 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-11844282098\&partnerID=40\&md5=c196fdfb0cc8b4c8a37688dd289071ca},
	author = {Barbosa, J. and Morais, C. and Monteiro, A.P.},
	editor = {Gonzalez T.}
}
@book {2496,
	title = {Study of a Silicate Cement for Dental Applications},
	series = {Key Engineering MaterialsKey Eng Mat},
	volume = {254-256},
	year = {2004},
	note = {Conference code: 62053Cited By (since 1996): 1Export Date: 21 November 2012Source: ScopusCODEN: KEMAELanguage of Original Document: EnglishCorrespondence Address: Pereira, S.; Fac. de Medicina Dent{\'a}ria, Universidade do Porto, R. Dr. Manuel Pereira da Silva, 4200-393 Porto, PortugalReferences: Craig, R.G., Rovers, J.M., (2002) Restorative Dental Materials. 9th Ed., pp. 593-627. , St Louis: Mosby;Gladwin, M., Bagby, M., (2000) Clinical Aspects of Dental Materials. First Edition, pp. 81-92. , Philadelphia: Lippincott Williams \& Wilkins; 
Leinfelder, K.F., Changing Restorative Traditions: The Use of Bases and Liners (1994) JADA, 125, pp. 65-67; 
Macchi, R.L., (2000) Mat. Dentales. 3 a Ed., pp. 129-135. , Buenos Aires: Edit. M{\'e}dica P.americana S.A; 
Wise, D.L., (1995) Encyclopedic Handbook of Biomaterials and Bioengineering, pp. 1398-1411. , New York: Marcel Dekver; 
Gordan, V.V., Mj{\"o}r, I.A., Hucke, R.D., Smith, G.E., Effect of Different Liner Treatments on Postoperative Sensivity of Amalgam Restorations (1999) Quintessence Int, 30, pp. 55-59; 
Me, M., Nakai, H., Effect of Immersion in Water on Linear Expansion and Strength of Three Base/Liner Materials (1995) Dent Mater, 14, pp. 70-77; 
Leevailoj, C., Cochran, M.A., Matis, B.A., Moore, B.K., Platt, J.A., Microleakage of Posterior Packable Resin Composites with and without Flowable Liners (2001) Oper Dent, 26, pp. 302-307; 
Weiner, R.S., Weiner, L.K., Kugel, G., Teaching the Use of Bases and Liners: A Survey of the North American Dental Schools (1996) JADA, 127, pp. 1640-1645; 
Pereira, S., Branco, R., Cavalheiro, J., Afonso, A., Vasconcelos, M., (2003) Sealing Ability of a New Dental Base Material, , Bioeng; 
(1991) Specification for Dental Water-based Cements, , ISO 9917 (F)
},
	month = {2004///},
	pages = {659 - 662},
	address = {Porto},
	abstract = {Dental cements have a wide field of applications in clinical practice. The use as a base material is a very important one in dentistry. The aim of this study is to assess some relevant properties of a silicate cement (SC) developed for dental applications, comparing it with two other cements already commercialised, a zinc phosphate cement De Trey Zinc Cement Improved{\textregistered} (DT) and ProRootMTA{\textregistered}(MTA). Their compressive strength, dimensional changes and weight variation in water after setting, according to ISO standards were compared. The mean compressive strength of DT, MTA and SC were, respectively, 134MPa, 31MPa and 46MPa. There were no statistically significant differences for the three tested cements at the various time intervals, in respect to their weight variation or dimensional changes. However, there was a little loss of weight for DT (0.15\%) and for MTA (3\%) and a gain of 3\% for the SC. Regarding the dimensional changes, all materials undergo little expansion, more significant in the MTA and in the SC samples of 2,07\% and 0,4\%, respectively. The new Silicate Cement, presented enough compressive strength, low weight variation, very small dimensional changes and good adaptation to the surface of dental cavity. For these reasons this new cement could be a valuable proposal as a base material for dental applications.},
	keywords = {Biocompatibility, Body fluids, Ceramic materials, ceramics, Compressive Strength, Dental cement, Dental cements, Dental prostheses, Dimensional stability, Precipitation (chemical), Scanning electron microscopy, Silicate cements, Silicates, Stainless steel, Weight variation},
	isbn = {10139826 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0346255102\&partnerID=40\&md5=b43c6052d3f4c9fcaff59b75a9cad543},
	author = {Pereira, S. and Cavalheiro, J. and Branco, R. and Afonso, A. and Vasconcelos, M.},
	editor = {Barbosa M.A. and Monteiro F.J. and Correia R. and Leon B.}
}
@article {2480,
	title = {Ultrastructural comparison of dissolution and apatite precipitation on hydroxyapatite and silicon-substituted hydroxyapatite in vitro and in vivo},
	journal = {Journal of Biomedical Materials Research - Part AJ. Biomed. Mater. Res. Part A},
	volume = {69},
	year = {2004},
	note = {Cited By (since 1996): 48Export Date: 21 November 2012Source: ScopusCODEN: JBMRCPubMed ID: 15162409Language of Original Document: EnglishCorrespondence Address: Porter, A.E.; Dept. of Mat. Science and Metallurgy, University of Cambridge, Pembroke Street, Cambridge, CB2 3QZ, United Kingdom; email: aep30@cam.ac.ukChemicals/CAS: apatite, 64476-38-6; carbonic acid, 3812-32-6, 463-79-6; hydroxyapatite, 1306-06-5, 51198-94-8; silicon, 7440-21-3; Biocompatible Materials; Durapatite, 1306-06-5; Silicon, 7440-21-3References: Porter, A.E., Best, S.M., Bonfield, W., Ultrastructural comparison of hydroxyapatite and silicon-substituted hydroxyapatite for biomedical applications (2003) J Biomed Mater Res, 68 A, pp. 133-141;Patel, N., Gibson, I.R., Hing, K.A., Best, S.M., Revell, P.A., Bonfield, W., A comparative study on the in vivo behaviour of hydroxyapatite and silicon substituted hydroxyapatite granules (2002) J Mater Sci Mater Med, 13, pp. 1199-1206; 
Porter, A.E., Patel, N., Skepper, J.N.S., Best, S.M., Bonfield, W., Comparison of in vivo dissolution processes in hydroxyapatite and silicon-hydroxyapatite bioceramics (2003) Biomaterials, 24, pp. 4609-4620; 
Weng, J., Liu, Q., Wolke, J.G.C., Zhang, X., De Groot, K., Formation and characteristics of the apatite layer on plasma-sprayed hydroxyapatite coatings in simulated body fluid (1995) Biomaterials, 18, pp. 1027-1035; 
Doi, Y., Shibutani, T., Moriwake, Y., Kajimoto, T., Iwayama, Y., Sintered carbonate apatites as bioresorbable bone substitutes (1997) J Biomed Mater Res, 39, pp. 603-610; 
Schepers, E., Declercq, M., Ducheyne, P., Kempeneers, R., Bioactive glass particulate material as a filler for bone lesions (1991) J Oral Rehab, 18, pp. 439-452; 
Ducheyne, P., Qiu, Q., Bioactive ceramics: The effect of surface reactivity on bone formation and bone cell function (1999) Biomaterials, 20, pp. 2287-2303; 
Ducheyne, P., Radin, S., King, L., The effect of calcium-phosphate ceramic composition and structure on in vitro behaviour. I. Dissolution (1993) J Biomed Mater Res, 27, pp. 25-34; 
Kukubo, T., Kushitani, H., Sakka, S., Solutions able to reproduce in vivo surface-structure changes in bioactive glass-ceramic A-W (1990) J Biomed Mater Res, 24, pp. 721-734; 
Radin, S.R., Ducheyne, P., The effect of calcium phosphate ceramic composition and structure on in vitro behavior. II. Precipitation (1993) J Biomed Mater Res, 27, pp. 35-45; 
Gibson, I.R., Hing, K.A., Best, S.M., Bonfield, W., Enhanced in vitro cell activity and surface apatite layer formation on novel silicon-substituted hydroxyapatites (1999) 12th International Symposium on Ceramics in Medicine, pp. 191-194. , Ohgushi H, Hastings GW, Yoshikawa T, editors. Nara, Japan. World Scientific; 
Fujibayashi, S., Neo, M., Kim, H.-M., Kokubo, T., Nakamura, T., A comparative study between in vivo bone ingrowth and in vitro apatite formation on Na 2-CaO-SiO 2 glasses (2003) Biomaterials, 24, pp. 1349-1356; 
Porter, A.E., Patel, N., Skepper, J.N., Best, S.M., Bonfield, W., Effect of sintered silicate-substituted hydroxyapatite on remodelling processes at the bone-implant interface (2003) Biomaterials, 25, pp. 3303-3314; 
Leng, Y., Chen, J., Qu, S., TEM study of calcium phosphate precipitation on HA/TCP ceramics (2003) Biomaterials, 24, pp. 2125-2131; 
Akao, M., Aoki, H., Kato, K., Mechanical properties of sintered hydroxyapatite for prosthetic applications (1981) J Mater Sci, 28, p. 809; 
Gibson, I.R., Best, S.M., Bonfield, W., Chemical characterization of silicon-substituted hydroxyapatite (1999) J Biomed Mater Res, 44, pp. 422-428; 
Rey, C., Calcium phosphates for medical applications (1998) Calcium Phosphates in Biological and Industrial Systems, pp. 217-251. , Amjad Z, editor. Kluwer Academic: Boston; 
Tanizawa, Y., Suzuki, T., Effects of silica ions on the formation and transformation of calcium phosphates in neutral aqueous solutions (1995) J Chem Soc Faraday Trans, 91, pp. 3499-3503; 
Damen, J.J.M., Ten Cate, J.M., Silica-induced precipitation of calcium phosphate in the presence of inhibitors of hydroxyapatite formation (1992) J Dent Res, 71, pp. 453-457; 
Botelho, C.M., Lopes, M.A., Gibson, I.R., Best, S.M., Santos, J.D., Structural analysis of Si-substituted hydroxyapatite: Zeta potential and X-ray photoelectron spectroscopy (XPS) (2002) J Mater Sci Mater Med, 13, pp. 1123-1127; 
Carlisle, E.M., Silicon (1975) Nutr Rev, 33, pp. 257-260; 
Termine, J.D., Eanes, E.D., Conn, K.M., Phosphoprotein modulation of apatite crystallization (1980) Calcif Tissue Int, 31, pp. 247-251; 
Combes, C., Rey, C., Adsorption of proteins and calcium phosphate materials bioactivity (2002) Biomaterials, 23, pp. 2817-2823; 
Horbett, T.A., Proteins at interfaces - An overview (1995) ACS Symp Ser, pp. 602-623
},
	month = {2004///},
	pages = {670 - 679},
	abstract = {Recent histological studies have demonstrated that the substitution of silicate ions into hydroxyapatite (HA) significantly increases the rate of bone apposition to HA implants. The enhanced bioactivity of silicon-substituted HA (Si-HA) over pure HA has been attributed to the effect of silicate ions in accelerating dissolution. In the present study, high-resolution transmission electron microscopy (HR-TEM) was employed to compare dissolution of HA and Si-HA in an acellular simulated body fluid (SBF) to dissolution in an in vivo model. HR-TEM observations confirmed a difference in morphology of apatite precipitates in vivo and in SBF: apatite deposits were platelike in vivo and nodular in SBF. Compositional mapping suggested that preferential dissolution of silicon from the implant promotes the nucleation of carbonate apatite around the implant. The in vivo findings illustrated an absence of dissolution at the bone-HA or Si-HA interface, whereas dissolution was extensive from within the implant. The amount of dissolution in acellular SBF was similar to dissolution from within the implant, although the site at which the dissolution nucleates was different: dissolution predominates at the crystallite surfaces in SBF, whereas grain boundary dissolution predominates in vivo. These findings suggest that proteins in the in vivo milieu modify the processes of dissolution from the implant. {\textcopyright} 2004 Wiley Periodicals, Inc.},
	keywords = {Apatite, article, Bioactivity, Biocompatible Materials, body fluid, carbonic acid, comparative study, Composition, Dissolution, Durapatite, histology, hydroxyapatite, implant, Implants (surgical), in vitro study, in vivo study, Interfaces (materials), Microscopy, Electron, Microscopy, Electron, Scanning, morphology, precipitation, Precipitation (chemical), Silicon, Simulated body fluid, Simulated body fluids (SBF), simulation, transmission electron microscopy, ultrastructure},
	isbn = {00219304 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-2942558665\&partnerID=40\&md5=c262d4d218d8dba93d767c3b6f399564},
	author = {Porter, A.E. and Botelho, C.M. and Lopes, M.A. and Santos, J.D. and Best, S.M. and Bonfield, W.}
}
@book {2498,
	title = {The Valences of Egg White for Designing Smart Porous Bloceramics: As Foaming and Consolidation Agent},
	series = {Key Engineering MaterialsKey Eng Mat},
	volume = {254-256},
	year = {2004},
	note = {Conference code: 62053Cited By (since 1996): 3Export Date: 21 November 2012Source: ScopusCODEN: KEMAELanguage of Original Document: EnglishCorrespondence Address: Lemos, A.F.; Ceramic Engineering Department, Campus de Santiago, University of Aveiro, 3810-193 Aveiro, Portugal; email: ilemos@cv.ua.ptReferences: De Groot, K., (1980) Biomaterials, 1, p. 47;Ohgushi, H., Okumura, M., Yoshikawa, T., Inoue, K., Senpuku, N., Tamai, S., Shors, E.C., (1992) J. Biomed. Mater. Res., 26, p. 885; 
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Lemos, A.F., Santos, J.D., Ferreira, J.M.F., (2003) Advanced Materials Forum
},
	month = {2004///},
	pages = {1045 - 1048},
	address = {Porto},
	abstract = {Porous hydroxyapatite bioceramics were developed by a new direct consolidation method based on the foaming capability of egg white and on its gelling properties on heating, thus acting both as pore former and consolidator agent. The bubble forming capability of fresh egg white, due to the presence of a globular protein - albumen, allows the formation of a stable foam when added to a ceramic suspension. Adding a sufficient amount of the globular protein to the suspension revealed to be crucial to control either the pore volume fraction as well as the gelling behaviour and the rigidity of the green bodies. This consolidation method can be performed in nonporous moulds, enabling materials with controlled porosity to be obtained by varying the egg white content in the slip composition. After drying, burnout and sintering, materials with ultimate porosities close to 75 \% were obtained.},
	keywords = {Bioceramics, Biodegradation, Bone-grafting, Ceramic materials, Consolidation technique, Consolidation techniques, Egg-white, heating, hydroxyapatite, morphology, Pore size, porosity, Porous ceramics, Porous materials, Proteins, Slurries, Solidification},
	isbn = {10139826 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0347516109\&partnerID=40\&md5=e6413ccdd076de29b881e380890e42ac},
	author = {Lemos, A.F. and Ferreira, J.M.F.},
	editor = {Barbosa M.A. and Monteiro F.J. and Correia R. and Leon B.}
}
@conference {2468,
	title = {XRD and FT-IR characterisation of hydroxyapatite sputtered films on titanium},
	booktitle = {Transactions - 7th World Biomaterials CongressTrans. World Biomater. Congr.},
	series = {Transactions - 7th World Biomaterials Congress},
	year = {2004},
	note = {Conference code: 64310Export Date: 21 November 2012Source: ScopusLanguage of Original Document: EnglishCorrespondence Address: Silva, R.A.; Inst. Sup. de Engenharia do Porto, Rua Dr.Antonio Bernardino A., 431, 4200- 072 Porto, Portugal; email: ras@isep.ipp.ptReferences: Wolke, J.G.C., (1998) J.Biomed. Mat. Res, 39, pp. 524-530;Silva, R.A., Proceedings of Bioceramics 16, , to be published
},
	month = {2004///},
	pages = {163},
	address = {Sydney},
	abstract = {XRD and FT-IR were used to characterize hydroxyapatite (HA) films, which were prepared using rf sputtering. The morphology of the sample films was analyzed using SEM. From the FT-IR spectrum, sputtered HA films showed structural changes, namely the decrease of the strength of the liberational mode of OH group, indicating the presence of a poorly crystalline phase. XRD results of films obtained at 500 W and 400 W showed that the crystallinity of the 500 W 4h e 2h samples was low, just showing a very incipient degree of crystalline structural structural arrangement, while in the 400 W-4h and 2h samples there was no crystalline structure, with only a slight diffraction of the 002 and 301 HA planes.},
	keywords = {Absorption bands, Adsorption, Bioactive films, Biomaterials, Bone, crystal structure, Crystallinity, Deposition, Fourier transform infrared spectroscopy, hydroxyapatite, Hydroxyapatite films, morphology, Scanning electron microscopy, Sintering, Sputtering, Surface topography, Thin films, Titanium, X ray diffraction analysis},
	isbn = {1877040193 (ISBN); 9781877040191 (ISBN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-13844280872\&partnerID=40\&md5=4b0c92bd00c80cb724aa79ae88c5976e},
	author = {Silva, R.A. and Sousa, M. and Monteiro, F.J. and Barrai, R. and Lopes, M.A.}
}
@article {2516,
	title = {Adhesion of human leukocytes to biomaterials: An in vitro study using alkanethiolate monolayers with different chemically functionalized surfaces},
	journal = {Journal of Biomedical Materials Research - Part AJ. Biomed. Mater. Res. Part A},
	volume = {65},
	year = {2003},
	note = {Cited By (since 1996): 24Export Date: 21 November 2012Source: ScopusCODEN: JBMRCLanguage of Original Document: EnglishCorrespondence Address: Barbosa, J.N.; INEB-Inst. de Engenharia Biomedica, Laborat{\'o}rio de Biomateriais, Rua do Campo Alegre 823, 4150-180 Porto, Portugal; email: judite@ibmc.up.ptChemicals/CAS: gold, 7440-57-5; hydroxide, 14280-30-9; methane, 74-82-8; phorbol 12 acetate 13 myristate, 31365-46-5; phytohemagglutinin, 9008-97-3; phorbol 13 acetate 12 myristate, 16561-29-8; Biocompatible Materials; Gold, 7440-57-5; Phytohemagglutinins; Tetradecanoylphorbol Acetate, 16561-29-8References: Jones, D.A., Smith, C.W., McIntire, L.V., Leucocyte adhesion under flow conditions: Principles importante in tissue engineering (1996) Biomaterials, 17, pp. 337-347;Marchant, R.E., Cell adhesion and interactions with biomaterials (1984) J Adhes, 20, pp. 211-225; 
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},
	month = {2003///},
	pages = {429 - 434},
	abstract = {The adhesion of human leukocytes to self-assembled monolayers of well-defined surface chemistry was investigated in vitro. Polymorphonuclear (PMN) and mononuclear leukocytes were isolated from human blood by centrifugation techniques. The effect on adhesion of cell activation produced by pre-incubation of leukocytes with phytohemagglutinin (PHA) and phorbol 12-myristate 13-acetate (PMA) was also studied. Gold substrates were modified by treatment with alkanethiols with three different terminal chemical groups: COOH, OH, and CH                        3. After incubation with the two subpopulations of leukocytes, the monolayers were washed, treated with fixative, stained with a Giemsa method, and observed by light microscopy to quantify the number of attached leukocytes. Comparative quantification of the density of leukocyte adhesion to the three types of self-assembled monolayers was determined. The hydrophobic surface expressing CH
                        3 was found to be the one that induced the highest adhesion density of leukocytes, both of PMN and mononuclear cells. In vitro activation of both mononuclear and PMN leukocytes further increased cell adhesion to the chemically defined monolayers that were used. This enhancement was higher for PHA-activated than for PMA-stimulated mononuclear cells, whereas PMA treatment of neutrophils resulted in a higher rate of adhesion of these cells than PHA stimulation. {\textcopyright} 2003 Wiley Periodicals, Inc.
},
	keywords = {alkane derivative, article, Biocompatible Materials, biomaterial, Biomaterials, Blood, carboxyl group, cell adhesion, cell interaction, cell isolation, cell subpopulation, cell surface, Cell-surface interactions, Cells, Centrifugation, controlled study, drug effect, Giemsa stain, gold, human, human cell, Humans, hydrophobicity, hydroxide, in vitro study, Incubation, lectin, Lectins, leukocyte, Leukocyte activation, leukocyte adherence, Leukocyte adhesion, Leukocytes, Leukocytes, Mononuclear, materials testing, methane, microscopy, Monolayers, mononuclear cell, neutrophil, Neutrophils, Optical microscopy, phorbol 12 acetate 13 myristate, phorbol 13 acetate 12 myristate, physiology, phytohemagglutinin, Phytohemagglutinins, polymorphonuclear cell, Self-assembled monolayers, Surface Properties, surface property, Tetradecanoylphorbol Acetate, thiolacid},
	isbn = {00219304 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0042970748\&partnerID=40\&md5=87f1101c5250d34ddc259f7f43f37e16},
	author = {Barbosa, J.N. and Barbosa, M.A. and {\'A}gua, A.P.}
}
@article {2512,
	title = {Albumin adsorption on alkanethiols self-assembled monolayers on gold electrodes studied by chronopotentiometry},
	journal = {BiomaterialsBiomaterials},
	volume = {24},
	year = {2003},
	note = {Cited By (since 1996): 31Export Date: 21 November 2012Source: ScopusCODEN: BIMADdoi: 10.1016/S0142-9612(03)00244-8PubMed ID: 12818541Language of Original Document: EnglishCorrespondence Address: Martins, M.C.L.; INEB - Inst. de Engenharia Biomed., Laborat{\'o}rio de Biomateriais, Rua do Campo Alegre, 823, 4150-180 Porto, Portugal; email: cmartins@ibmc.up.ptChemicals/CAS: gold, 7440-57-5; thiol derivative, 13940-21-1; water, 7732-18-5; Albumins; Alkanes; Biocompatible Materials; Gold, 7440-57-5; Serum Albumin; Sulfhydryl CompoundsReferences: Ratner, B.D., Hoffman, A.S., Schoen, F.J., Lemons, J.L., (1996) Biomaterials science - an introduction to materials in medicine, , San Diego, CA, USA: Academic Press;Nakanishi, K., Sakiyama, T., Imamura, K., On the adsorption of proteins on solid surfaces, a common but very complicated phenomenon (2001) J Biosci Bioeng, 91, pp. 233-244; 
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},
	month = {2003///},
	pages = {3697 - 3706},
	abstract = {Chronopotentiometry was used to study the adsorption of human serum albumin (HSA) to self-assembled monolayers with the following terminal functional groups: CH                        3, COOH and OH. Surfaces were characterized by X-ray photoelectron spectroscopy, water contact angle measurements and cyclic voltammetry. HSA coverage of the different SAMs was investigated by chronopotentiometry and the total amount of adsorbed protein was determined using radiolabelled albumin. Both techniques have demonstrated that HSA adsorption to the different SAM-modified electrodes increases in the following order: OH\&lt;COOH\&lt;CH
                        3-terminated SAMs. A good correlation between coverage and total amount of HSA adsorbed was observed for long adsorption times (900s). {\textcopyright} 2003 Elsevier Science Ltd. All rights reserved.
},
	keywords = {Adsorption, Albumin, Albumin adsorption, Albumins, alkane, Alkanes, article, Biocompatible Materials, biomaterial, Biomaterials, carboxyl group, Chemical modification, Chronopotentiometry, Contact angle, correlation analysis, cyclic potentiometry, Cyclic voltammetry, electrochemistry, electrode, Electron Probe Microanalysis, Functional groups, gold, Humans, hydroxyl group, isotope labeling, methyl group, Monolayers, potentiometry, priority journal, protein analysis, Self assembly, Self-assembled monolayers, Serum Albumin, Sulfhydryl Compounds, Surface modification, Surface Properties, surface property, temperature, thiol derivative, Time Factors, Water, X ray photoelectron spectroscopy},
	isbn = {01429612 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0038802804\&partnerID=40\&md5=d9b75bc199d3c909e08c53f4de329ce5},
	author = {Martins, M.C.L. and Fonseca, C. and Barbosa, M.A. and Ratner, B.D.}
}
@article {2509,
	title = {Albumin adsorption on Cibacron Blue F3G-A immobilized onto oligo(ethylene glycol)-terminated self-assembled monolayers},
	journal = {Journal of Materials Science: Materials in MedicineJ. Mater. Sci. Mater. Med.},
	volume = {14},
	year = {2003},
	note = {Cited By (since 1996): 20Export Date: 21 November 2012Source: ScopusCODEN: JSMMEdoi: 10.1023/A:1026394431100Language of Original Document: EnglishCorrespondence Address: Martins, Ma.C.L.; INEB - Inst. de Engenharia Biomedica, Laborat{\'o}rio de Biomateriais, Rua do Campo Alegre, 823, 4150-180 Porto, Portugal; email: cmartins@ibmc.up.ptChemicals/CAS: cibacron blue f3ga, 12236-82-7, 53127-08-5; ethylene glycol, 107-21-1; fibrinogen, 9001-32-5; gold, 7440-57-5; human serum albumin, 9048-49-1; iodine 125, 14158-31-7, 22822-81-7; macrogol, 25322-68-3; thiol derivative, 13940-21-1; water, 7732-18-5References: Ratner, B.D., (1996) J. Mol. Recognit., 9, p. 617;Kottke-Marchant, K., Anderson, J.M., Umemura, Y., Marchant, R.E., (1998) Biomaterials, 10, p. 147; 
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Ji, J., Feng, L., Barbosa, M.A., (2001) Biomaterials, 22, p. 3015; 
Keogh, J.R., Eaton, J.W., (1994) J. Lab. Clin. Med., 121, p. 537; 
Wang, D., Chen, B., Ji, J., Feng, L., (2002) Bioconjugate Chem., 13, p. 792; 
Ji, J., Barbosa, M.A., Feng, L., Shen, J., (2002) J. Mat. Sci. Mat. Med., 13, p. 677; 
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Mcfarland, C.D., Filippis, C.D., Jenkins, M., Tunstell, A., Rhodes, N.P., Williams, D.F., Steele, J.G., (1998) J. Biomater. Sci. Polym. Ed., 9, p. 1277; 
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Martins, M.C.L., Wang, D., Ji, J., Feng, L., Barbosa, M.A., (2003) J. Biomater. Sci. Polym. Ed., 14, p. 439; 
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},
	month = {2003///},
	pages = {945 - 954},
	abstract = {Self-assembled monolayers can be tailored with specific ligands to a certain protein and at the same time prevent the non-specific adsorption of other proteins. Cibacron Blue F3G-A (CB-thiol) was successfully immobilized onto tetra(ethylene glycol)-terminated alkanethiol (CB-thiol). The affinity of human serum albumin (HSA) to immobilized Cibacron Blue F3G-A was studied using mixed thiolate self-assembled monolayers on gold with different n-alkyl chain lengths and functional terminal groups (CH                        3-; OH- and tetra(ethylene glycol)). Surfaces were characterized using X-ray photoelectron spectroscopy and water contact angle measurements. Albumin adsorption and exchangeability of the adsorbed albumin molecules with other albumin molecules in solution were evaluated using 
                        125I-radiolabeled HSA. Competitive adsorption between albumin and fibrinogen to the different self-assembled monolayers (SAMs) was also investigated. Results showed that the incorporation of CB-thiol on the monolayers does not increase the HSA adsorption and reversibility on the SAMs. However, although specific adsorption of HSA to the immobilized Cibacron Blue F3G-A was not demonstrated, the presence of CB-thiol decreases the affinity of fibrinogen to the OH-terminated SAMs. {\textcopyright} 2003 Kluwer Academic Publishers.
},
	keywords = {Adsorption, Albumin, aqueous solution, article, Cell immobilization, cibacron blue f3ga, Contact angle, controlled study, Drug products, Ethylene Glycol, fibrinogen, functional group, Glycols, gold, human, human serum albumin, iodine 125, isotope labeling, ligand, macrogol, molecule, priority journal, protein assembly, protein binding, protein immobilization, protein structure, Proteins, radioassay, Self assembly, surface property, synthesis, tetra(ethylene glycol) undecanethiol, thiol, thiol derivative, unclassified drug, Water, X ray photoelectron spectroscopy},
	isbn = {09574530 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0344629191\&partnerID=40\&md5=6ebb3020ea2ade3febc3906ce0672cc1},
	author = {Martins, Ma.C.L. and Naeemi, E. and Ratner, B.D. and Barbosa, M.A.}
}
@article {2515,
	title = {Albumin and fibrinogen adsorption on Cibacron blue F3G-A immobilised onto PU-PHEMA (polyurethane-poly (hydroxyethylmethacrylate)) surfaces},
	journal = {Journal of Biomaterials Science, Polymer EditionJ. Biomater. Sci. Polym. Ed.},
	volume = {14},
	year = {2003},
	note = {Cited By (since 1996): 16Export Date: 21 November 2012Source: ScopusCODEN: JBSEEdoi: 10.1163/156856203766652057PubMed ID: 12807146Language of Original Document: EnglishCorrespondence Address: Martins, M.C.L.; Inst. de Engenharia Biomedica, Laborat{\'o}rio de Biomateriais, Rua do Campo Alegre 823, 4150-180 Porto, Portugal; email: cmartins@ibmc.up.ptChemicals/CAS: cibacron blue f3ga, 12236-82-7, 53127-08-5; dextran, 87915-38-6, 9014-78-2; fibrinogen, 9001-32-5; polymacon, 25053-81-0, 25249-16-5, 98932-78-6; polyurethan, 61789-63-7; Albumins; Biocompatible Materials; Cibacron Blue F 3GA, 12236-82-7; Fibrinogen, 9001-32-5; Membranes, Artificial; Polyhydroxyethyl Methacrylate, 25249-16-5; TriazinesReferences: Ratner, B.D., Hoffman, A.S., Schoen, F.J., Lemons, J.L., (1996) Biomaterials Science - an Introduction to Materials in Medicine, , (Eds), Academic Press, San Diego, CA;Greco, R.S., (1994) Implantation Biology, the Host Response and Biomedical Devices, , (Ed.), CRC Press, Ann Arbour, MI; 
Sapatnekar, S., Anderson, J.M., (1999) Handbook of Biomaterials Evaluation. Scientific, Technical and Clinical Testing of Implant Materials, p. 353. , A. F. von Recum (Ed.), Taylor \& Francis, Philadelphia, PA; 
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},
	month = {2003///},
	pages = {439 - 455},
	abstract = {In the present work, it is intended to study the effect of Cibacron blue F3G-A (CB) immobilised onto PU-PHEMA (polyurethane-poly(hydroxyethylmethacrylate)) surfaces on protein adsorption and bacterial adhesion. CB immobilisation was carried out by covalent binding between its triazine ring and the hydroxyl groups of the polymer. Characterisation of the films was carried out by attenuated total reflection Fourier transform infrared spectroscopy (ATR-FT-IR), contact angle measurements, X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM). CB efficiency was evaluated using radiolabelled albumin and fibrinogen from pure solutions, mixtures of both and plasma. Bacterial adhesion tests before and after albumin pre-coating were also performed. The presence of CB increases albumin and fibrinogen adsorption to PU-PHEMA surfaces. The incorporation of CB onto the PU-PHEMA surface also increases bacterial adhesion. Although albumin pre-coating decreases bacterial adhesion onto PU (67\% decrease) and PU-PHEMA-CB (80\%), bacterial adhesion is always lower on PU and PU-PHEMA surfaces than on PU-PHEMA-CB. These results demonstrate that, in contrast to what has been described for CB bound to dextran, CB immobilisation on PU-PHEMA surfaces presents low selectivity to albumin and increased bacterial adhesion relatively to PU and PU-PHEMA surfaces.},
	keywords = {Adsorption, Albumin, Albumins, article, Bacterial adhesion, bacterium adherence, Biocompatible Materials, Chemical structure, Cibacron blue, cibacron blue f3ga, Contact angle, controlled study, covalent bond, dextran, fibrinogen, hydroxyl group, immobilization, infrared spectroscopy, isotope labeling, Membranes, Artificial, Microscopy, Electron, Scanning, nonhuman, PHEMA, Polyhydroxyethyl Methacrylate, polymacon, polyurethan, priority journal, Protein adsorption, Scanning electron microscopy, Spectroscopy, Fourier Transform Infrared, Staphylococcus epidermidis, Surface Properties, triazine derivative, Triazines, X ray photoelectron spectroscopy, XPS},
	isbn = {09205063 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0038316702\&partnerID=40\&md5=6f911799b67ba3289c643eb874879e1f},
	author = {Martins, M.C.L. and Wang, D. and Ji, J. and Feng, L. and Barbosa, M.A.}
}
@article {2517,
	title = {Albumin and fibrinogen adsorption on PU-PHEMA surfaces},
	journal = {BiomaterialsBiomaterials},
	volume = {24},
	year = {2003},
	note = {Cited By (since 1996): 41Export Date: 21 November 2012Source: ScopusCODEN: BIMADdoi: 10.1016/S0142-9612(03)00002-4PubMed ID: 12628827Language of Original Document: EnglishCorrespondence Address: Martins, M.C.L.; Laborat{\'o}rio de Biomateriais, Inst. de Engenharia Biom{\'e}dica, Rua do Campo Algre 823, Porto 4150-180, Portugal; email: cmartins@ibmc.up.ptChemicals/CAS: acrylic acid ethyl ester, 140-88-5; fibrinogen, 9001-32-5; poly(2 hydroxyethyl acrylate), 26022-14-0; polyetherurethan, 76600-67-4; polymacon, 25053-81-0, 25249-16-5, 98932-78-6; protein, 67254-75-5; Albumins; Biocompatible Materials; Fibrinogen, 9001-32-5; poly(2-hydroxyethyl acrylate), 26022-14-0; Polyhydroxyethyl Methacrylate, 25249-16-5; Water, 7732-18-5References: Ratner, B.D., Hoffman, A.S., Schoen, F.J., Lemons, J.L., (1996) Biomaterials science - An introduction to materials in medicine, , CA, USA, San Diego: Academic Press;Greco, R.S., (1994) Implantation biology, the host response and biomedical devices, , Ann Arbour, USA: CRC Press; 
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},
	month = {2003///},
	pages = {2067 - 2076},
	abstract = {Materials that adsorb specific proteins may find a variety of applications in the biomedical field. The aim of this study was the preparation of a hydrophilic surface, with low protein adsorption, to be used in the future as a support for the immobilisation of several species, e.g. Cibacron Blue F3G-A, which has been described to induce specific albumin adsorption. Poly(hydroxyethylmethacrylate) (PHEMA) and poly(hydroxyethylacrylate) (PHEA) were chosen as the hydrophilic surface because they can be easily polymerised and possess hydroxyl groups that can be used for the immobilisation of different compounds. Thin films of PHEMA and PHEA were successfully graft polymerised onto the surface of a commercial poly(etherurethane) (PU) using ceric ion as initiator. Grafting polymerisations were followed by mass gain and attenuated total reflection Fourier transform infrared spectroscopy (ATR-FTIR). Since stability tests demonstrated that only PU-PHEMA was stable in alkaline solutions, a necessary condition to future immobilisations, the investigation was focused on the coating of PU with PHEMA. PU-PHEMA films were characterised in detail using several techniques as mass gain, ATR-FTIR, contact angle measurements, X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM). Protein adsorption was evaluated using radiolabelled albumin and fibrinogen from pure solutions and from mixtures of both proteins. PU surfaces modified with PHEMA have demonstrated low protein adsorption, showing their potential use as substrates. This opens the possibly of exploring the advantages of selective adsorption by appropriate immobilisation of specific molecules. {\textcopyright} 2003 Elsevier Science Ltd. All rights reserved.},
	keywords = {acrylic acid ethyl ester, Adsorption, Albumin, Albumins, article, ATR-FTIR, Biocompatible Materials, Chemical modification, Dose-Response Relationship, Drug, fibrinogen, film, Fourier transform infrared spectroscopy, Graft polymerisation, Humans, Hydrogen-Ion Concentration, Hydrophilic surfaces, hydrophilicity, hydroxyl group, infrared spectroscopy, isotope labeling, Microscopy, Electron, Scanning, molecular stability, Pellethane, PHEMA, poly(2 hydroxyethyl acrylate), polyetherurethan, Polyhydroxyethyl Methacrylate, polymacon, Polymerization, priority journal, protein, Protein adsorption, Proteins, Scanning electron microscopy, Spectrometry, X-Ray Emission, Spectroscopy, Fourier Transform Infrared, surface property, Thin films, unclassified drug, Water, X ray photoelectron spectroscopy},
	isbn = {01429612 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0037400503\&partnerID=40\&md5=dc989d7fe65e35d20f250cf3e7c245f9},
	author = {Martins, M.C.L. and Wang, D. and Ji, J. and Feng, L. and Barbosa, M.A.}
}
@article {2508,
	title = {Constructing thromboresistant surface on biomedical stainless steel via layer-by-layer deposition anticoagulant},
	journal = {BiomaterialsBiomaterials},
	volume = {24},
	year = {2003},
	note = {Cited By (since 1996): 67Export Date: 21 November 2012Source: ScopusCODEN: BIMADdoi: 10.1016/S0142-9612(03)00363-6PubMed ID: 12951013Language of Original Document: EnglishCorrespondence Address: Ji, J.; Department of Polymer Science, Zhejiang University, Hangzhou 310027, China; email: jianji@mail.hz.zj.cnChemicals/CAS: heparin, 37187-54-5, 8057-48-5, 8065-01-8, 9005-48-5; polyethyleneimine, 74913-72-7; stainless steel, 12597-68-1; trometamol, 1185-53-1, 77-86-1; Anticoagulants; Coated Materials, Biocompatible; Heparin, 9005-49-6; Polyethyleneimine, 9002-98-6; Stainless Steel, 12597-68-1Manufacturers: AldrichReferences: Bertrand, P., Jonas, A., Laschewsky, A., Legras, R., Ultrathin polymer coating by complexation of polyelectrolytes at interfaces: Suitable materials, structure and properties (2000) Macromol Rapid Commun, 21, pp. 319-348;Ulman, A., Formation and structure of self-assembled monolayers (1996) Chem Rev, 96, pp. 1533-1554; 
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},
	month = {2003///},
	pages = {4699 - 4705},
	abstract = {Multilayer films consisting of polyethylenimine (PEI) and heparin were successfully prepared on biomedical 316L stainless steel surface via electrostatic self-assembly (ESA) of the PEI and heparin. The process of ESA of PEI/heparin was monitored by static contact angle, electrochemical impedance spectroscopy (EIS), reflection adsorption spectroscopy and X-ray photoelectron spectroscopy data. The contact angle and EIS data revealed that the multilayer coating was stable in Tris-HCl (pH 7.35) buffer solution for 21 days. The static platelet adhesion and static clotting time experiments indicated that the PEI/heparin-deposited stainless steel could resist the platelet adhesion and prolong the static clotting time effectively. Such an easy processing and shape-independent method may have good potential for surface modification of cardiovascular devices. {\textcopyright} 2003 Elsevier Ltd. All rights reserved.},
	keywords = {316L stainless steel, Adhesion, Adsorption, anticoagulant agent, Anticoagulants, aqueous solution, article, Biocompatibility, biomaterial, Biomaterials, blood clotting time, Blood Platelets, Blood-compatibility, buffer, Coated Materials, Biocompatible, coating, Coatings, Contact angle, controlled study, Deposition, device, electricity, Electrochemical impedance spectroscopy, electrochemistry, Electrostatics, heparin, human, human cell, Humans, implant, Layer-by-layer, material coating, materials testing, Multilayers, Organic polymers, pH, Platelet Adhesiveness, Polyethyleneimine, priority journal, reflection adsorption spectroscopy, Self assembly, Spectroscopy, Stainless steel, Surface Properties, surface property, Surfaces, thrombocyte adhesion, Thromboresistant surfaces, trometamol, X ray photoelectron spectroscopy},
	isbn = {01429612 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0041386468\&partnerID=40\&md5=a68c77a7525bca1760cc298a394c713f},
	author = {Tan, Q. and Ji, J. and Barbosa, M.A. and Fonseca, C. and Shen, J.}
}
@article {2521,
	title = {Corrosion behaviour of commercially pure titanium shot blasted with different materials and sizes of shot particles for dental implant applications},
	journal = {BiomaterialsBiomaterials},
	volume = {24},
	year = {2003},
	note = {Cited By (since 1996): 77Export Date: 21 November 2012Source: ScopusCODEN: BIMADdoi: 10.1016/S0142-9612(02)00314-9Language of Original Document: EnglishCorrespondence Address: Aparicio, C.; Res. Center in Biomed. Eng. (CREB), Department of Materials Science, Universitat Politecnica de Catalunya, Av. Diagonal 647, 08028 Barcelona, Spain; email: conrado.aparicio@upc.esChemicals/CAS: Dental Implants; Titanium, 7440-32-6References: Br{\r a}nemark, P.I., Hansson, B.O., Adell, R., Breine, U., Lindstr{\"o}m, J., Hallen, O., {\"O}hman, A., Osseointegrated implants in the treatment of edentulous jaw experience from a 10-year period (1977) Scand J Reconstr Surg, 16 (SUPPL.), pp. 1-132;Lemons, J.E., Application of materials in medicine and dentistry. Dental implants (1996) Biomaterials Science: An Introduction to Materials in Medicine, pp. 308-318. , B.D. Ratner, A.S. Hoffman, F.J. Schoen, \& J.E. Lemons. San Diego: Academic Press; 
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},
	month = {2003///},
	pages = {263 - 273},
	abstract = {It is well known that the osseointegration of the commercially pure titanium (c.p. Ti) dental implant is improved when the metal is shot blasted in order to increase its surface roughness. This roughness is colonised by bone, which improves implant fixation. However, shot blasting also changes the chemical composition of the implant surface because some shot particles remain adhered on the metal. The c.p. Ti surfaces shot blasted with different materials and sizes of shot particles were tested in order to determine their topographical features (surface roughness, real surface area and the percentage of surface covered by the adhered shot particles) and electrochemical behaviour (open circuit potential, electrochemical impedance spectroscopy and cyclic polarisation). The results demonstrate that the increased surface area of the material because of the increasing surface roughness is not the only cause for differences found in the electrochemical behaviour and corrosion resistance of the blasted c.p. Ti. Among other possible causes, those differences may be attributed to the compressive residual surface stresses induced by shot blasting. All the materials tested have an adequate corrosion and electrochemical behaviour in terms of its possible use as dental implant material. {\textcopyright} 2002 Elsevier Science Ltd. All rights reserved.},
	keywords = {article, Blast finishing, chemical composition, chemistry, Corrosion, Dental implant, Dental Implants, Dental prostheses, Electric Potential, Electrochemical impedance spectroscopy, electrochemistry, impedance, materials testing, Particle Size, Polarization, priority journal, Shot blasting, Spectroscopy, stress, Surface roughness, Surface topography, Titanium, tooth implantation},
	isbn = {01429612 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0037209960\&partnerID=40\&md5=c60c6b69f4fb345454b557acc836ec95},
	author = {Aparicio, C. and Javier Gil, F. and Fonseca, C. and Barbosa, M. and Planell, J.A.}
}
@article {2507,
	title = {Development of foetal and neonatal simulators at the University of Porto},
	journal = {Medical Education, SupplementMed. Educ. Suppl.},
	volume = {37},
	year = {2003},
	note = {Cited By (since 1996): 6Export Date: 21 November 2012Source: ScopusCODEN: MESECPubMed ID: 14641636Language of Original Document: EnglishCorrespondence Address: Van Meurs, W.L.; INEB - Inst. de Engenharia Biomedica, Lab. de Sinal e Imagem Biomedica, Edificio I-Poente, Rua Roberto Prias, s/n, 4200-465 Porto, Portugal; email: wvanmeurs@ineb.up.ptChemicals/CAS: oxygen, 7782-44-7References: Kohn, L.T., Corrigan, J.M., Donaldson, M.S., (2000) To Err Is Human, Building a Safer Health Care System, , Washington, DC: National Academic Press;Denson, J.S., Abrahamson, S., A computer-controlled patient simulator (1969) JAMA, 208, pp. 504-508; 
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S{\'a} Couto, P.M., Van Meurs, W.L., Bernardes, J.F., Marques De S{\'a}, J.P., Goodwin, J.A., Combined model-driven and rule-based approach for educational simulation of fetal heart rate (2002) BIOSIGNAL 2002. Proceedings of the 16th Biennial International Conference of the European Association for Speech, Signal and Image Processing (EURASIP), 26-28 June 2002, Brno, Czech Republic, pp. 400-402. , Jan J, Kozumpl{\'\i}k J, Provazn{\'\i}k I, eds. Brno: Vutium Press; 
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},
	month = {2003///},
	pages = {29 - 33},
	abstract = {Background: Human error can be expected to play a significant role in adverse outcomes in perinatal acute care. In acute care of the adult, simulator based training is recommended and used to improve patient safety. Aims: Our general goal is to develop model-driven foetal and neonatal educational simulators and curricula. The specific objectives of this paper are to introduce the reader to the perinatal acute care context and simulator design considerations, as well as to give initial results and describe ongoing developments. A brief description of adult simulators and simulation engines is followed by a more detailed description of a foetal distress simulator (FDS) and of models for a neonatal simulator developed at the University of Porto. Ongoing developments involve the modelling of foetal baroreflexes, the effect of uterine contractions, and an adapted method for estimating foetal heart rate variability parameters. Results: We present FDS simulation results reflecting the changes in oxygen supply to the foetus and the foetal heart rate in response to a reduction in uterine blood flow. We also present a structural diagram of a model for the educational simulation of congenital heart disease and preliminary simulation results reflecting a patent ductus arteriosus. Conclusion: We expect that, after initial clinical and educational validation, the presented models and simulators will play a role in simulator-based educational programmes contributing to increased perinatal safety.},
	keywords = {article, audiovisual equipment, blackstarPatient simulation, clinical competence, Clinical competence/blackstarstandards/economics, competence, Curriculum, Education, Medical, Undergraduate, Education, medical, undergraduate/blackstarmethods, Equipment Safety, fetus distress, human, Humans, Manikins, medical education, model, oxygen, Patient Simulation, perinatal care, Perinatal care/ blackstarstandards/methods, Portugal, safety, simulator, training},
	isbn = {13523929 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0242550943\&partnerID=40\&md5=4ad77934dd61ea164105b57b431c82a1},
	author = {van Meurs, W.L. and S{\'a} Couto, P.M. and S{\'a} Couto, C.D. and Bernardes, J.F. and Ayres-de-Campos, D.}
}
@article {2510,
	title = {Protein adsorption on mixtures of hydroxyl- and methyl-terminated alkanethiols self-assembled monolayers},
	journal = {Journal of Biomedical Materials Research - Part AJ. Biomed. Mater. Res. Part A},
	volume = {67},
	year = {2003},
	note = {Cited By (since 1996): 63Export Date: 21 November 2012Source: ScopusCODEN: JBMRCPubMed ID: 14517873Language of Original Document: EnglishCorrespondence Address: Martins, M.C.L.; INEB-Inst. de Engenharia Biomedica, Laborat{\'o}rio de Biomateriais, Rua do Campo Alegre, 823, 4150-180 Porto, Portugal; email: cmartins@ibmc.up.ptChemicals/CAS: human serum albumin, 9048-49-1; thiol derivative, 13940-21-1; Biocompatible Materials; Gold, 7440-57-5; Proteins; Sulfhydryl CompoundsReferences: Ratner, B.D., Hoffman, A.S., Schoen, F.J., Lemons, J.L., (1996) Biomaterials Science - An Introduction to Materials in Medicine, , San Diego, CA: Academic;Kottke-Marchant, K., Anderson, J.M., Umemura, Y., Marchant, R.E., Effect of albumin coating on the in vitro blood compatibility of Dacron arterial prostheses (1989) Biomaterials, 10, pp. 147-155; 
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},
	month = {2003///},
	pages = {158 - 171},
	abstract = {The effect of surface composition and wettability on the adsorption of human serum albumin (HSA) was studied. Self-assembled monolayers (SAMs) containing mixtures of longer chain methyl- and shorter chain hydroxyl-terminated alkanethiols on gold were used to produce a range of surfaces with different wettabilities and exposed functional groups. Different SAMs were characterized by X-ray photoelectron spectroscopy, water contact angles, and Fourier transform infrared reflection absorption spectroscopy (IRAS). HSA adsorption onto the different SAMs was evaluated by contact angle measurements (wetting tension determinations), radiolabeling of proteins, and IRAS. Concerning HSA adsorption, all the techniques demonstrated higher HSA adsorption on more hydrophobic surfaces. The wetting tension measurements and IRAS suggested a gradual decrease of the HSA adsorption with increases of surface hydrophilicity. Radiolabeled albumin measurements also demonstrated a significant decrease of HSA adsorption on the pure hydroxyl-terminated SAMs. However, no significant differences were detected between mixed and pure methyl-terminated SAMs. Studies of HSA exchangeability with human fibrinogen have suggested that an ideal percentage of hydroxyl groups on the surface may increase albumin affinity without fibrinogen adsorption. {\textcopyright} 2003 Wiley Periodicals, Inc.},
	keywords = {Absorption spectroscopy, Adsorption, article, Biocompatible Materials, Contact angle, Contact angles, fourier transform infrared reflection absorption spectroscopy, Fourier transform infrared spectroscopy, Functional groups, gold, human serum albumin, hydrophilicity, hydrophobicity, IRAS, isotope labeling, measurement, Mixtures, monolayer culture, Monolayers, Protein adsorption, Proteins, Self-assembled monolayers, Spectrum Analysis, Sulfhydryl Compounds, surface property, tension, thiol derivative, Time Factors, wettability, X ray photoelectron spectroscopy, XPS},
	isbn = {00219304 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0344306504\&partnerID=40\&md5=cc1823cda1406a9f9572da09315251f7},
	author = {Martins, M.C.L. and Ratner, B.D. and Barbosa, M.A.}
}
@article {2520,
	title = {Surface engineering of poly(DL-lactide) via electrostatic self-assembly of extracellular matrix-like molecules},
	journal = {BiomacromoleculesBiomacromolecules},
	volume = {4},
	year = {2003},
	note = {Cited By (since 1996): 48Export Date: 21 November 2012Source: ScopusCODEN: BOMAFdoi: 10.1021/bm025773pPubMed ID: 12625735Language of Original Document: EnglishCorrespondence Address: Ji, J.; Department of Polymer Science/Eng., Zhejing University, Hangzhou 310027, China; email: jianji@mail.hz.zj.cnChemicals/CAS: gelatin, 9000-70-8; polyethyleneimine, 74913-72-7; polylactide, 26680-10-4; poly(lactide), 26969-66-4; PolyestersTradenames: AXIOVERT 200, Zeiss; ESCA LAB 200A, VG; Radiance 2100, Biorad; Shimadzu UV-1201, Shimadzu; SPA 400, Seiko; Vectro 22, BrukerManufacturers: Biorad; Bruker; Seiko; Shimadzu; VG; ZeissReferences: Sittinger, M., Perka, C., Schutz, O., Haupl, T., Burmester, G.R.Z., (1999) Rheumatol., 58, pp. 130-135;Kim, B.S., Mooney, D.J., (1998) Trends Biotechnol., 16, p. 224; 
Bertrand, P., Jonas, A., Laschewsky, A., Legras, R., (2000) Macromol. Rapid Commun., 21, p. 319; 
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Sano, M., Lvov, Y., Kunitake, T., (1996) Annu. Rev. Mater. Sci., 26, pp. 153-187; 
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Davids, S., (1993) Test Procedures for the Blood Compatibility of Biomaterials, pp. 287-330. , Kluwer Academic Publishers: Dordrecht
},
	month = {2003///},
	pages = {378 - 386},
	abstract = {We report the development of new biomacromolecule coatings on biodegradable biomaterials based on electrostatic assembly of extracellular matrix-like molecules. Poly(ethylene imine) (PEI) was employed to engineer poly(DL-lactide) (PDL-LA) substrate to obtain a stable positively charged surface. An extracellular matrix- (ECM-) like biomacromolecule, gelatin, was selected as the polyelectrolyte to deposit on the activated PDL-LA substrate via the electrostatic assemble technique. The extracellular matrix-like multilayer on the PDL-LA substrate was investigated by attenuated total reflection (ATR-FTIR), X-ray photoelectron spectrscopy (XPS), contact angle, and atomic force microscopy (AFM). The gradual buildup of the protein layer was investigated by UV-vis spectra, and it was further given a quantitative analysis of the protein layer on the PDL-LA substrate via the radioiodination technique. The stability of the protein layer under aqueous condition was also tested by the radiolabeling method. Chondrocyte was selected as the model system for testing the cell behavior and morphology on modified PDL-LA substrates. The chondrocyte test about cell attachment, proliferation, cell activity and cell morphology by SEM, and confocal laser scanning microscopy (CLSM) investigation on extracellular matrix-like multilayer modified PDL-LA substrate was shown to promote chondrocyte attachment and growth. Comparing conventional coating methods, polyelectrolyte multiplayers are easy and stable to prepare. It may be a good choice for the modification of 3-D scaffolds used in tissue engineering. These very flexible systems allow broad medical applications for drug delivery and tissue engineering.},
	keywords = {animal cell, Animalia, Animals, article, Atomic force microscopy, biodegradability, biomaterial, cartilage cell, cell activity, cell adhesion, cell function, cell growth, cell proliferation, cell structure, Cells, Cultured, Chondrocytes, confocal laser microscopy, controlled study, Electron Probe Microanalysis, Electrostatics, extracellular matrix, Fourier transform infrared spectroscopy, gelatin, macromolecule, Macromolecules, Microscopy, Atomic Force, nonhuman, polyelectrolyte, Polyesters, Polyethyleneimine, Polyethylenes, polylactide, priority journal, protein analysis, protein stability, quantitative analysis, Rabbits, radioiodination, Scanning electron microscopy, Self assembly, Spectrophotometry, Ultraviolet, Spectroscopy, Fourier Transform Infrared, Surface charge, Surface engineering, Surface Properties, Tissue engineering, Ultraviolet spectroscopy, X ray photoelectron spectroscopy},
	isbn = {15257797 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0038071804\&partnerID=40\&md5=dc56622e3535f161005efe1ae86f4d23},
	author = {Zhu, H. and Ji, J. and Tan, Q. and Barbosa, M.A. and Shen, J.}
}
@book {2518,
	title = {Synthesis of hydroxyapatite and tricalcium phosphate nanoparticles - Preliminary studies},
	series = {Key Engineering MaterialsKey Eng Mat},
	volume = {240-242},
	year = {2003},
	note = {Conference code: 60907Cited By (since 1996): 6Export Date: 21 November 2012Source: ScopusCODEN: KEMAELanguage of Original Document: EnglishCorrespondence Address: Manuel, C.M.; Inst. de Engenharia Biom{\'e}dica, Laborat{\'o}rio de Biomateriais, Universidade do Porto, Rua do Campo Alegre, 823, 4150-180 Porto, Portugal; email: candida@ibmc.up.ptReferences: Rhee, S.-H., (2002) Biomaterials, 23, pp. 1147-1152;Yeong, K.C.B., Wang, J., Ng, S.C., (2001) Biomaterials, 22, pp. 2705-2712; 
Fowler, B.O., Moreno, E.C., Brown, W.E., (1966) Arch. Oral Biol., 11, pp. 477-492
},
	month = {2003///},
	pages = {555 - 558},
	address = {Sydney, NSW},
	abstract = {The wet mechanochemical process (MC) and chemical precipitation (CP) used to prepare hydroxyapatite (HA) and tricalcium phosphate (TCP) nanoparticles proved to be successful. In mechanochemical treatment, water and ethanol were used as a solvent but the last one improved particles agglomeration and decreased HA formation. This effect was also observed when aging temperature was decreased in wet chemical precipitation.},
	keywords = {Agglomeration, Calcium Compounds, Chemical precipitation, hydroxyapatite, Mechanochemical treatment, nanoparticles, Nanostructured materials, Precipitation (chemical), Synthesis (chemical), Tricalcium phosphate},
	isbn = {10139826 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0037246970\&partnerID=40\&md5=a4396f71d0ffef576b372e3227b9bb41},
	author = {Manuel, C.M. and Ferraz, M.P. and Monteiro, F.J.},
	editor = {Ben - Nissan B. and Sher D. and Walsh W.}
}
@article {2533,
	title = {Cellulose phosphates as biomaterials. In vivo biocompatibility studies},
	journal = {BiomaterialsBiomaterials},
	volume = {23},
	year = {2002},
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},
	month = {2002///},
	pages = {971 - 980},
	abstract = {Femoral implantation of regenerated cellulose hydrogels revealed their biocompatibility, but a complete osseointegration could not be observed. Phosphorylation was therefore envisaged as the means to enhance cellulose bioactivity. In vitro studies showed that regenerated cellulose hydrogels promote bone cells attachment and proliferation but do not mineralize in acellular simulated physiological conditions. On the contrary, phosphorylated cellulose has shown an opposite behavior, by inducing the formation of a calcium phosphate layer in simulated physiological conditions, but behaving as a poor substrate for bone cells attachment and proliferation. In order to investigate the in vivo behavior of these materials, and assess the influence of mineralization induction ability vs. bone cells compatibility, unmodified and phosphorylated cellulose hydrogels were implanted in rabbits for a maximum period of 6 months and bone regeneration was investigated. Despite the difficulties arising from the retraction of cellulose hydrogels upon dehydration during the preparation of retrieved implants, histological observations showed no inflammatory response after implantation, with bone intra-spongious regeneration of cells and the integration of the unmodified as well as the phosphorylated cellulose implants. After a maximum implantation period of 6 months, histological observations, histomorphometry and the measurement of the amount of                        45Ca incorporated in the surrounding tissue indicated a slightly better osseointegration of phosphorylated cellulose, although no significant differences between the two materials were found. {\textcopyright} 2001 Elsevier Science Ltd. All rights reserved.
},
	keywords = {animal experiment, Animal implantation, animal tissue, Animalia, Animals, article, Biocompatibility, Biocompatible Materials, biomaterial, Biomaterials, Bone, bone cell, bone mineralization, Bone Regeneration, Calcium, calcium 45, Calcium Compounds, calcium phosphate, Calcium Radioisotopes, cell adhesion, cell proliferation, Cells, Cellulose, Cellulose phosphate, Chemical modification, controlled study, Dehydration, histology, hydrogel, Hydrogels, implant, in vivo study, Inflammation, materials testing, Microscopy, Electron, Scanning, morphometrics, nonhuman, Oryctolagus cuniculus, Osseointegration, Phosphates, Phosphorylation, priority journal, Prostheses and Implants, rabbit, Rabbits, Regenerated cellulose hydrogels},
	isbn = {01429612 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0037082737\&partnerID=40\&md5=faae93af84ab2762579f90bd2d64eefa},
	author = {Fricain, J.C. and Granja, P.L. and Barbosa, M.A. and De J{\'e}so, B. and Barthe, N. and Baquey, C.}
}
@article {2534,
	title = {Mathematical model for educational simulation of the oxygen delivery to the fetus},
	journal = {Control Engineering PracticeControl Eng. Pract.},
	volume = {10},
	year = {2002},
	note = {Cited By (since 1996): 3Export Date: 21 November 2012Source: ScopusCODEN: COEPEdoi: 10.1016/S0967-0661(01)00133-2Language of Original Document: EnglishCorrespondence Address: Marques de S{\'a}, J.P.; Instituto de Engenharia Biomedica, Faculdade de Engenharia, Universidade do Porto, Rua Roberto Frias, Porto 4200-465, Portugal; email: jmsa@fe.up.ptReferences: Beneken, J.E.W., Rideout, V.C., The use of multiple models in cardiovascular system studies: Transport and perturbation methods (1968) IEEE Transactions on Bio-Medical Engineering, 15 (4), pp. 281-289;Cunningham, G., (1997) Williams Obstretrics, , (20th ed.). London: Prentice-Hall; 
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},
	month = {2002///},
	pages = {59 - 66},
	abstract = {Critical situations in obstetrics and anesthesia of the pregnant woman are rare and associated with a high risk to the woman and fetus involved. Therefore, simulation is a valuable tool in teaching the diagnostic and therapeutic skills in this context. We derive a mathematical model for the oxygen supply to the fetus that was specifically designed for educational simulations. The model reflects the hemodynamics and the oxygen transport. Parameter values for human patients are derived from the literature data. We validate the response of the model, with parameters reflecting the fetal lamb, to various reductions of the uterine and umbilical blood flow. {\textcopyright} 2002 Elsevier Science Ltd. All rights reserved.},
	keywords = {Anesthesiology, Blood, Computer simulation, control, Diagnosis, education, Fetal monitoring, fetus, hemodynamics, mathematical model, Mathematical models, medical application, Obstetrics, oxygen, Oxygen supply, simulator, Therapeutic skills},
	isbn = {09670661 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0036141420\&partnerID=40\&md5=5b294e0689357e03c548b7ccf608b476},
	author = {S{\'a} Couto, P.M. and van Meurs, W.L. and Bernardes, J.F. and Marques De S{\'a}, J.P. and Goodwin, J.A.}
}
@article {2529,
	title = {A novel urethane containing copolymer as a surface modification additive for blood contact materials},
	journal = {Journal of Materials Science: Materials in MedicineJ. Mater. Sci. Mater. Med.},
	volume = {13},
	year = {2002},
	note = {Cited By (since 1996): 6Export Date: 21 November 2012Source: ScopusCODEN: JSMMEdoi: 10.1023/A:1015789726455Language of Original Document: EnglishCorrespondence Address: Ji, J.; Department of Polymer Science, Zhejiang University, HangZhou 310027, China; email: jianji@mail.hz.zj.cnReferences: Elbert, D., Hubbell, J., (1996) Annu. Rev. Mater., p. 365;Munro, M., Quattrone, A., Ellsworth, S., Kulkarni, P., Eberhart, R., (1981) Trans. Am. Soc. Artif. Intern. Organs., p. 499; 
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},
	month = {2002///},
	pages = {677 - 684},
	abstract = {Surface modification to develop a biomolecules-presenting surface is of interest, both from a scientific and an industrial point of view. In this research, a penta-block-coupling polymer of warfarin-PEO-MDI-PEO-warfarin was specially designed as the surface modifying additive (SMA). The warfarin-modified polyurethane surfaces were then prepared by dip-coating method. Attenuated total reflection fourier transform infra-red (ATR-FTIR) spectra revealed that the urethane segments in the SMA could penetrate into the hard block of segmented polyurethane (SPU) via intermolecular hydrogen bonds. The X-ray photoelectron spectroscopy (XPS) results indicated that the intermolecular hydrogen bonds were strong enough to form stable warfarin-PEO composite surfaces in an aqueous environment. Fibrinogen and albumin adsorption onto unmodified and SMA-modified SPU was investigated by the                        125l-labeled method. The surface for attracting and reversibly binding albumin, which was proved to suppress the platelet adhesion and prolong the clotting time, has been developed by the simple coating of the novel SMA in SPU. {\textcopyright} 2002 Kluwer Academic Publishers.
},
	keywords = {Adhesion, Adsorption, Albumin, article, Attenuation, biomaterial, Block copolymers, Blood, blood clotting time, Chemical modification, Coatings, copolymer, fibrinogen, Fourier transform infrared spectroscopy, human, human cell, hydrogen bond, Hydrogen bonds, infrared spectroscopy, iodine 125, material coating, Polyurethanes, priority journal, Surface modifying additives (SMA), surface property, Surface treatment, synthesis, thrombocyte adhesion, urethan, warfarin, X ray photoelectron spectroscopy},
	isbn = {09574530 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0036308146\&partnerID=40\&md5=4767c8a335b26ea0390bc42ddbbaf6b1},
	author = {Ji, J. and Barbosa, M.A. and Feng, L. and Shen, J.}
}
@article {2530,
	title = {Preparation of albumin preferential surfaces on poly(vinyl chloride) membranes via surface self-segregation},
	journal = {Journal of Biomedical Materials ResearchJ. Biomed. Mater. Res.},
	volume = {61},
	year = {2002},
	note = {Cited By (since 1996): 3Export Date: 21 November 2012Source: ScopusCODEN: JBMRBdoi: 10.1002/jbm.10187Language of Original Document: EnglishCorrespondence Address: Ji, J.; Department of Polymer Science, Zhejiang University, HangZhou, 310027, China; email: jianji@mail.hz.zj.cnChemicals/CAS: Membranes, Artificial; Polyethylene Glycols; Polyvinyl Chloride, 9002-86-2; Serum Albumin; Stearates; stearyl poly(ethylene oxide)References: Blass, C.R., Jones, C., Courtney, J.M., Biomaterials for blood tubing: The application of plasticised poly(vinyl chloride) (1992) Int J Artif Organs, 15 (4), pp. 200-203;Brash, J.L., (1983) Biocompatible polymer, metals and composites, p. 35. , Szycher M, editor. London, UK: Technomic Pub. Co; 
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},
	month = {2002///},
	pages = {252 - 259},
	abstract = {Poly(vinyl chlorides)-graft-[w-stearyl-poly(ethylene oxide)] (PVC-g-SPEO), which has a poly(vinyl chloride) (PVC) backbone, poly(ethylene oxide) (PEO) side chain, and stearyl end groups, has been synthesized. Self-organizing blends of the amphiphilic comb polymer in poly-(vinyl chlorides) have been examined as a means to create albumin preferential surfaces on polymer films. X-ray photoelectron spectroscopy (XPS) analysis indicates substantial surface segregation of the PVC-g-SPEO. A surface concentration of 59.9 EO wt \% is achieved by the solution casting and heat treatment of a film with a bulk concentration of only 3.78 EO wt \%. In the aqueous environment, the surface rearrangement of PVC-g-SPEO/PVC blend film is limited and presents a high interfacial energy and high depolar component of interfacial energy due to the "tail-like" SPEO side chain. Protein adsorption tests confirm that PVC-g-SPEO/PVC blend films absorb high levels of albumin and dramatically resist fibrinogen adsorption. Surfaces to attract and reversibly bind albumin, which might diminish the occurrence of thrombosis, inflammation, and infection, are developed by self-organizing blends of the amphiphilic comb polymer in poly(vinyl chlorides). {\textcopyright} 2002 Wiley Periodicals, Inc.},
	keywords = {Adsorption, Albumin, Amphiphilic copolymer, amphophile, aqueous solution, article, artificial membrane, Biocompatible Materials, cell separation, cell surface, chemical binding, combinatorial chemistry, concentration response, conference paper, dimerization, energy resource, film, human, Humans, infection, Inflammation, Inflammations, macrogol, macrogol derivative, membrane structure, Membranes, Artificial, metabolism, Plastic films, Polyethylene Glycols, polymer, Polymeric membranes, Polyvinyl Chloride, Polyvinyl chlorides, polyvinylchloride, protein binding, Serum Albumin, Stearates, stearic acid derivative, stearyl poly(ethylene oxide), Surface modification, Surface Properties, surface property, Surface segregation, Synthesis (chemical), thrombosis, X ray analysis, X ray photoelectron spectroscopy},
	isbn = {00219304 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0036268941\&partnerID=40\&md5=fbe73c0e87ccb8188bce7a8565a7d39a},
	author = {Ji, A. and Feng, L. and Shen, J. and Barbosa, M.A.}
}
@article {2523,
	title = {Silicon and iron levels in tissues of animals treated with a "ferrimagnetic ceramic" with oncotherapeutic potential (anti-tumor) value},
	journal = {Journal of Trace Elements in Medicine and BiologyJ. Trace Elem. Med. Biol.},
	volume = {16},
	year = {2002},
	note = {Cited By (since 1996): 2Export Date: 21 November 2012Source: ScopusCODEN: JTEBFdoi: 10.1016/S0946-672X(02)80054-2PubMed ID: 12530589Language of Original Document: EnglishCorrespondence Address: Bastos, M.D.L.; Toxicology Department, Faculty of Pharmacy, University of Porto, Rua An{\'\i}bal Cunha 164, 4050 Porto, PortugalChemicals/CAS: calcium oxide, 1305-78-8; iron, 14093-02-8, 53858-86-9, 7439-89-6; phosphorus pentoxide, 1314-56-3; silicon dioxide, 10279-57-9, 14464-46-1, 14808-60-7, 15468-32-3, 60676-86-0, 7631-86-9; silicon, 7440-21-3; Biocompatible Materials; Ceramics; Iron, 7439-89-6; Silicon, 7440-21-3; Tissue ExtractsReferences: Rofstad, E.K., Brustad, T., Primary and secondary cell death in human melanoma xenografts following hyperthermic treatment (1986) Cancer Res., 46, pp. 355-361;Nishimura, Y., Shibamoto, Y., Jo, S., Akuta, K., Hiraoka, M., Takahashi, M., Abe, M., Relationship between heat-induced vascular damage and thermosensitivity in four mouse tumors (1988) Cancer Res., 48, pp. 7226-7230; 
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},
	month = {2002///},
	pages = {255 - 259},
	abstract = {The stability in a biological environment of an injectable cement with oncotherapeutic potential - consisting of a glass powder of SiO                        2 (35.6\%), CaO (42.4\%), P
                        2O
                        5 (17\%), Na
                        2O (5\%) and 30\% of its weight of Fe
                        3O
                        4 dissolved in (NH
                        4)
                        2HPO
                        4 plus NH
                        4H
                        2PO
                        4 - was evaluated referring to the release of silicon and iron. The experimental model was the rat, and organs (liver, kidney, spleen, lung, heart, and brain) of the implanted and control animals were collected for quantification of these elements by electrothermal atomization atomic absorption spectrometry methods. In most of the analysed organs no significant difference in the contents of silicon and iron between the implanted and the control animals was found.
},
	keywords = {animal model, animal tissue, Animalia, Animals, article, atomic absorption spectrometry, Biocompatible Materials, calcium oxide, cancer therapy, cement, ceramics, controlled study, experimental model, Ferrimagnetic ceramic, heat, Humans, implant, Iron, Magnetics, materials testing, Neoplasms, nonhuman, Oncotherapy, phosphorus pentoxide, powder, priority journal, Prostheses and Implants, rat, Rats, Reproducibility of Results, Silicon, silicon dioxide, tissue distribution, Tissue Extracts},
	isbn = {0946672X (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-12244289604\&partnerID=40\&md5=aab427a78a1678c3b3f96bf869160dfd},
	author = {Almeida, T. and Soares, M.E. and Cavalheiro, J. and Bastos, M.D.L.}
}
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Pereira-Mouri{\`e}s, L., Milet, C., Almeida, M.J., Rousseau, M., Borzeix, S., Lopez, E., Biological effect of the water-soluble matrix extract of the nacre shell layer of Pinctada maxima on vertebrate cell proliferation and differentiation (2001) Proceedings of the 3rd International Satellite Symposium on the Comparative Endocrinology of Calcium Regulation, , http://www.sci.port.ac.uk/-cecr, Gay, C.V., Dacke, C.G., Dancks, J.A. \& Cox, P.A., eds; 
Pereira-Mouri{\`e}s, L., Almeida, M.J., Milet, C., Berland, S., Lopez, E., Bioactivity of nacre water-soluble organic matrix from the bivalve mollusk Pinctada maxima in three mammalian cell types: Fibroblasts, bone marrow stromal cells and osteoblasts (2002) Comp. Biochem. Physiol., 132, pp. 215-217
},
	month = {2002///},
	pages = {4994 - 5003},
	abstract = {Nacre organic matrix has been conventionally classified as both {\textquoteright}water-soluble{\textquoteright} and {\textquoteright}water-insoluble{\textquoteright}, based on its solubility in aqueous solutions after decalcification with acid or EDTA. Some characteristics (aspartic acid-rich, silk-fibroin-like content) were specifically attributed to either one or the other. The comparative study on the technique of extraction (extraction with water alone vs. demineralization with EDTA) presented here, seems to reveal that this generally accepted classification may need to be reconsidered. Actually, the nondecalcified soluble organic matrix, extracted in ultra-pure water, displays many of the characteristics of what until now has been called {\textquoteright}insoluble matrix{\textquoteright}. We present the results obtained on this extract and on a conventional EDTA-soluble matrix, with various characterization methods: fractionation by size-exclusion and anion-exchange HPLC, amino acid analysis, glycosaminoglycan and calcium quantification, SDS/PAGE and FTIR spectroscopy. We propose that the model for the interlamellar matrix sheets of nacre given by Nakahara [In: Biomineralization and Biological Metal Accumulation, Westbroek, P. \& deJong, E.W., eds, (1983) pp. 225-230. Reidel, Dordrecht, Holland] and Weiner and Traub [Phil. Trans. R. Soc. Lond. B (1984) 304, 425-434] may no longer be valid. The most recent model, proposed by Levi-Kalisman et al. [J. Struct. Biol. (2001) 135, 8-17], seemed to be more in accordance with our findings.},
	keywords = {amino acid analysis, Amino acids, Animals, anion exchange chromatography, article, Biochemistry, biomineralization, bivalve, Bivalvia, Calcium, Chemical Fractionation, Chromatography, High Pressure Liquid, controlled study, demineralization, edetic acid, EDTA-soluble matrix, Electrophoresis, Polyacrylamide Gel, Extracellular Matrix Proteins, extraction, fractionation, gel permeation chromatography, glycosaminoglycan, Glycosaminoglycans, High performance liquid chromatography, hydrophobicity, infrared spectroscopy, Insect Proteins, model, Nacre, nonhuman, Ostreidae, Pinctada, Pinctada maxima, polyacrylamide gel electrophoresis, priority journal, Silk, Silk-fibroin-like-proteins, Solubility, Spectroscopy, Fourier Transform Infrared, Undecalcified soluble matrix, Water},
	isbn = {00142956 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0036408881\&partnerID=40\&md5=7e99def46be711f02de5f4dd3dc8f63e},
	author = {Pereira-Mouri{\`e}s, L. and Almeida, M.-J. and Ribeiro, C. and Peduzzi, J. and Barth{\'e}lemy, M. and Milet, C. and Lopez, E.}
}
@article {2526,
	title = {Structural analysis of Si-substituted hydroxyapatite: Zeta potential and X-ray photoelectron spectroscopy},
	journal = {Journal of Materials Science: Materials in MedicineJ. Mater. Sci. Mater. Med.},
	volume = {13},
	year = {2002},
	note = {Cited By (since 1996): 59Export Date: 21 November 2012Source: ScopusCODEN: JSMMEdoi: 10.1023/A:1021177601899Language of Original Document: EnglishCorrespondence Address: Santos, J.D.; INEB - Inst. de Engenharia Biomedica, Rua do Campo Alegre, 823, 4150-180 Porto, Portugal; email: jdsantos@fe.up.ptChemicals/CAS: calcium oxide, 1305-78-8; calcium phosphate, 10103-46-5, 13767-12-9, 14358-97-5, 7758-87-4; hydroxyapatite, 1306-06-5, 51198-94-8; phosphate, 14066-19-4, 14265-44-2; silicon, 7440-21-3Tradenames: Philips PW1606 spectrometer, Philips; Siemens D5000 X ray diffractometer, Siemens; Sotax CE6Manufacturers: Philips; SiemensReferences: Carlisle, E.M., (1984) Fed. Proc., 43, p. 680;Carlisle, E.M., (1986) Silicon Biochemistry, , edited by D. Evered and M. O{\textquoteright}Connor (Wiley, New York); 
Schwarz, K., (1978) Biochemistry of Silicon and Related Problems, pp. 207-230. , edited by G. Bendz and I. Lindqvist (Plenum Press, New York); 
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},
	month = {2002///},
	pages = {1123 - 1127},
	abstract = {The aim of this study was to determine the effect of the incorporation of silicon on the surface charge of hydroxyapatite (HA) and to assess surface structural changes of HA and Si-HA induced by dissolution in both static and dynamic systems. X-ray photoelectron spectroscopy (XPS) analysis showed that SiO                        4
                        4- groups were substituted for PO
                        4
                        3- groups in the silicon-hydroxyapatite (Si-HA) lattice according to a previously proposed substitution mechanism without the formation of other crystalline phases, such as tricalcium phosphate or calcium oxide. The substituted silicon induced a decrease in the net surface charge and the isoelectric point of HA as determined by zeta potential (ZP) measurements. At physiological pH = 7.4 the surface charge of Si-HA was significantly lowered compared to unmodified HA, i.e. -50 {\textpm}5 to - 71 {\textpm} 5 eV, caused by the presence of silicate groups in the HA lattice, which may account for a faster in vitro apatite formation using SBF testing. XPS results indicated that silicon seems to be preferentially leached out from Si-HA surface compared to other ionic species after dissolution studies in tris-buffer using a dynamic system. {\textcopyright} 2002 Kluwer Academic Publishers.
},
	keywords = {calcium oxide, calcium phosphate, Chemical modification, conference paper, crystal structure, Dissolution, Electric Potential, electricity, hydroxyapatite, in vitro study, isoelectric point, Lime, molecular dynamics, pH, pH measurement, phase transition, phosphate, Phosphorus Compounds, priority journal, reaction analysis, Silicon, Silicon compounds, silicon derivative, structure analysis, surface property, X ray photoelectron spectroscopy, Zeta potential},
	isbn = {09574530 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0036983515\&partnerID=40\&md5=8bca315737eb24dc8e8f2e2be567c7fc},
	author = {Botelho, C.M. and Lopes, M.A. and Gibson, I.R. and Best, S.M. and Santos, J.D.}
}
@article {2550,
	title = {Affinity of hydroxyapatite to metal cations - a study on the composition and structure of phosphates formed in the presence of titanium and aluminum},
	journal = {Key Engineering MaterialsKey Eng Mat},
	volume = {192-195},
	year = {2001},
	note = {Conference code: 57760Export Date: 21 November 2012Source: ScopusCODEN: KEMAELanguage of Original Document: EnglishCorrespondence Address: Ribeiro, C.C.; INEB, Porto, PortugalReferences: Andress, D.L., Maloney, N.A., Endres, D.B., Sherrard, D.J., (1986) J. Bone Mineral Res., 1, p. 391;Posner, A.S., Blumenthal, N.C., Boskey, A.L., (1986) Kidney Int., 29, p. 17; 
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},
	month = {2001///},
	pages = {55 - 58},
	publisher = {Trans Tech Publ},
	address = {Bologna, Italy},
	abstract = {The purpose of this study was to contribute to the understanding of the effect of titanium, aluminium and titanium/aluminium on the Hap structure and to investigate if a synergistic effect between the two cations exists. The effect of the metal ion concentration was studied. The solids were analysed by X-ray diffraction, Fourier transform infrared spectroscopy, FT-Raman spectroscopy and energy dispersive X-ray analysis.},
	keywords = {Aluminum, Energy dispersive spectroscopy, Fourier transform infrared spectroscopy, Hap structure, hydroxyapatite, Positive ions, Raman spectroscopy, Structure (composition), Synergistic effect, Titanium, X ray diffraction analysis},
	isbn = {10139826 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0035147724\&partnerID=40\&md5=519703da8430f82ae6ea9c07670463e7},
	author = {Ribeiro, C.C. and Barbosa, M.A.}
}
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},
	month = {2001///},
	pages = {3341 - 3353},
	abstract = {The present study concerns the investigation of a material expected to be biocompatible and able to promote bone regeneration. For this purpose, cellulose was chemically modified by phosphorylation. Once implanted, phosphorylated cellulose could promote the formation of calcium phosphates, thus having closer resemblance to bone functionality. In a previous investigation, the obtention and the preliminary characterization of cellulose phosphate gels were reported. In the present study, the synthesis by the H                        3PO
                        4/P
                        2O
                        5/Et
                        3PO 
                        4/hexanol method was optimized in terms of reaction parameters. The structure of materials was investigated by FTIR, Raman, and solid-state 
                        31P- and 
                        13C-NMR spectroscopic studies, and X-ray diffraction. Water swelling and stability to sterilization by gamma-radiation were also assessed. It was demonstrated that the present method allows highly phosphorylated cellulose derivatives to be obtained. Cellulose triphosphates gels are described here for the first time. Products obtained were poorly crystallized monoesters, apparently not significantly affected by gamma sterilization and showed a high water swelling capability. Chemical bonding was confirmed by FTIR, Raman, and both 
                        31P- and 
                        13C-NMR spectroscopies. It was also shown that the H
                        3PO
                        4/P
                        2O
                        5/Et
                        3PO 
                        4/hexanol method provides a versatile and interesting alternative route to some of the more widely used techniques for the phosphorylation of cellulose. {\textcopyright} 2001 John Wiley \&amp; Sons, Inc. J. Appl. Polym. Sci.
},
	keywords = {13C-NMR, 2O, 3PO, 4/hexanol method, 4/P, 5/Et, Biomaterials, Cellulose derivatives, Cellulose gels, Cellulose triphosphates, Chemical bonds, Fourier transform infrared spectroscopy, Gels, H, medical textile, Nuclear magnetic resonance spectroscopy, Phosphorylation, Raman scattering, Sterilizers, Synthesis (chemical), X ray diffraction analysis},
	isbn = {00218995 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0035923986\&partnerID=40\&md5=7a58f84a4d86e26d35d7d90d44aecb63},
	author = {Granja, P.L. and Pouysgu, L. and Ptraud, M. and De Jso, B. and Baquey, C. and Barbosa, M.A.}
}
@article {2537,
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	volume = {82},
	year = {2001},
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},
	month = {2001///},
	pages = {3354 - 3365},
	abstract = {Cellulose regenerated by the viscose process was previously investigated as an implantable material in orthopedic surgery. It was envisaged to take advantage not only of its good matching with mechanical properties of bone but also of its hydroexpansivity, therefore allowing a satisfactory fixation to hard tissue. Both the osteoconduction and the lack of ostcoinduction of this material were demonstrated. Grafting of phosphate groups was then envisaged as the means to render cellulose more suitable for orthopedic applications by enhancing its bioactivity. In the present work, the previously optimized phosphorylation reaction was successfully adapted to the surface modification of regenerated cellulose. Modified materials were characterized by XPS, FTIR, and                        31P MAS NMR spectroscopic studies, and contact angle measurements, revealing the chemical bond between phosphate groups and cellulose, as well as the hydrophilic nature of phosphorylated materials, which increases with increasing phosphate contents. Water swelling and resistance to gamma sterilization were assessed as well, showing that phosphorylated materials swell considerably in water and were not affected when sterilization was carried out under a nitrogen atmosphere. The increase in surface roughness attributed to chemical modification was demonstrated through laser rugosimetry measurements. {\textcopyright} 2001 John Wiley \&amp; Sons, Inc. J. Appl. Polym. Sci.
},
	keywords = {2O, 3PO, 4/hexanol method, 4/P, 5/Et, Biomaterials, Cellulose derivatives, Cellulose phosphates, Chemical bonds, Chemical modification, Energy dispersive spectroscopy, Fourier transform infrared spectroscopy, H, Hydrogels, Phosphorylation, Regenerated cellulose hydrogels, Sterilization (cleaning), Surface modification, Surface roughness, X ray photoelectron spectroscopy},
	isbn = {00218995 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0035923980\&partnerID=40\&md5=5663bc99f91ce47534779e826f87ed97},
	author = {Granja, P.L. and Pouysgu, L. and Ptraud, M. and De Jso, B. and Baquey, C. and Barbosa, M.A.}
}
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},
	month = {2001///},
	pages = {306 - 312},
	abstract = {In this study we demonstrate, for the first time, that dexamethasone and BMP-2 stimulated alkaline phosphatase (ALP) activity in MRC-5 fibroblasts, a cell line derived from human fetal lung. Previously we reported that the water-soluble matrix (WSM) of nacre obtained from the inner shell layer of the oyster Pinctada maxima, promoted an increase in ALP activity that was dose-dependent. In this work, we show that the effect of WSM is also time-dependent. As a comparison, the effect of WSM was also tested in bone marrow stromal cells because marrow and other bone surface-derived osteoblast stem cells have the inherent direct potential for osteogenesis. WSM promotes cell proliferation and ALP activity when tested with bone marrow cells in concentrations between 135 and 540 μg protein/mL. The effect of WSM on ALP activity of bone marrow stromal cells is similar to that obtained by dexamethasone. These results imply that MRC-5 fibroblasts respond to differentiating factors that promote osteoblastic phenotype in bone-derived cell cultures. {\textcopyright} 2001 John Wiley \& Sons, Inc.},
	keywords = {alkaline phosphatase, Animals, article, Biomedical engineering, BMP-2, Bone, bone development, bone marrow, Bone Marrow Cells, Bone morphogenetic proteins, Cell culture, Cell Line, cell proliferation, Cells, concentration response, dexamethasone, differentiation inducing factor, dose response, Dose-Response Relationship, Drug, enzyme activity, fibroblast, Fibroblasts, Glucocorticoids, human, human cell, Humans, male, MRC-5 fibroblasts, Nacre, natural product, osteoblast, Ostreidae, oyster, phenotype, Proteins, Pulmonary diseases, Rats, Rats, Wistar, Solubility, stroma cell, time, Time Factors, Transforming Growth Factor beta, unclassified drug, Water, Water-soluble matrix},
	isbn = {00219304 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0034769134\&partnerID=40\&md5=f0ec664a074b3a67745c806152793d54},
	author = {Almeida, M.J. and Pereira, L. and Milet, C. and Haigle, J. and Barbosa, M. and Lopez, E.}
}
@article {2546,
	title = {Corrosion behaviour of titanium in biofluids containing H                    2O
                    2 studied by electrochemical impedance spectroscopy
},
	journal = {Corrosion ScienceCorros Sci},
	volume = {43},
	year = {2001},
	note = {Cited By (since 1996): 73Export Date: 21 November 2012Source: ScopusCODEN: CRRSAdoi: 10.1016/S0010-938X(00)00107-4Language of Original Document: EnglishCorrespondence Address: Fonseca, C.; Inst de Engenharia Biomedica, Porto, PortugalReferences: Hugot-Le-Goff, A., (1986) Thin Solid Films, 142, p. 193;Pascal, P., (1963) Nouveau Trait{\'e} de Chimie Min{\'e}rale, 14. , Masson \& Cie, Paris; 
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},
	month = {2001///},
	pages = {547 - 559},
	publisher = {Elsevier Science Ltd},
	abstract = {This work aims at studying the electrochemical behaviour of titanium in the presence of an artificial biofluid containing H                        2O
                        2, mimicing the situation, where the metal is implanted in the human body and hydrogen peroxide is generated by an inflammatory reaction. A phosphate buffered saline (PBS) solution and two PBS/H
                        2O
                        2 solutions containing 50 and 150 mM of H
                        2O
                        2 were used to simulate the body fluids. The behaviour of the metal was monitored as a function of time by electrochemical impedance spectroscopy (EIS) for three weeks. After one week, the PBS/H
                        2O
                        2 solutions were replaced by fresh PBS solutions in order to simulate the end of the inflammatory process and recovery of the system. All the experiments were carried out at a constant temperature of 37 {\textdegree}C. From the simulation of the experimental EIS spectra, it was concluded that the corrosion resistance of titanium is strongly affected by the presence of H
                        2O
                        2 and when the peroxide is removed, the metal displays a sharp resistance increase. Furthermore, the oxides formed in H
                        2O
                        2 are rougher and display higher ionic conductivities than the oxides formed in the absence of peroxide. The study was complemented with potentiostatic experiments and scanning electron microscopy observation of the metal surfaces.
},
	keywords = {Biomaterials, Body fluids, Corrosion resistance, Electrochemical corrosion, electrochemical process, hydrogen peroxide, impedance technique, Implants (surgical), Phosphate buffered saline, Solutions, Spectroscopy, Titanium},
	isbn = {0010938X (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0035275589\&partnerID=40\&md5=ef23abf56839789d71056a03bc1523e3},
	author = {Fonseca, C. and Barbosa, M.A.}
}
@article {2539,
	title = {Mineralization of regenerated cellulose hydrogels},
	journal = {Journal of Materials Science: Materials in MedicineJ. Mater. Sci. Mater. Med.},
	volume = {12},
	year = {2001},
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},
	month = {2001///},
	pages = {785 - 791},
	abstract = {Due to their high water swelling, regenerated cellulose hydrogels and sponges were pre-incubated in a Ca-containing solution, and their mineralization was investigated. Results obtained demonstrate that a simple pre-incubation treatment in a Ca containing solution can induce mineralization in materials with limited or no tendency to mineralize. The minerals formed had an apatitic carbonated and poorly crystalline structure, resembling carbonated hydroxyapatite found in bone mineral. The apatitic layer formed showed a relatively accelerated growth using this technique, exhibiting nodules in their macroscopic structure, which seem to indicate lateral growth. The porous structure of regenerated cellulose sponges was also homogeneously mineralized using this technique. {\textcopyright} 2001 Kluwer Academic Publishers.},
	keywords = {Apatite, article, Bone, bone mineral, Calcification (biochemistry), Calcium, Carbon, Cellulose, crystal, hydrogel, Hydrogels, hydroxyapatite, Incubation, infrared spectroscopy, mineralization, porosity, priority journal, Scanning electron microscopy, surface property, Swelling, Water},
	isbn = {09574530 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0034771780\&partnerID=40\&md5=58fcd227f17f7da6e5e0af69c7351f0a},
	author = {Granja, P.L. and Ribeiro, C.C. and De J{\'e}so, B. and Baquey, C. and Barbosa, M.A.}
}
@article {2552,
	title = {Starch based copolymers as biomaterials in vivo biocompatibility study},
	journal = {Key Engineering MaterialsKey Eng Mat},
	volume = {192-195},
	year = {2001},
	note = {Conference code: 57760Cited By (since 1996): 1Export Date: 21 November 2012Source: ScopusCODEN: KEMAELanguage of Original Document: EnglishCorrespondence Address: Souillac, V.; Universite Bordeaux 2, Bordeaux, FranceReferences: Hollinger, J.O., Brekke, J., Gruskin, E., Lee, D., (1996) Clin. Orthop., 324, p. 55;Nizard, R., Bizot, P., Sedel, L., (1996) Encycl. Med. Chir., Orthop{\'e}die-traumatologie, 44 (3). , 20p; 
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},
	month = {2001///},
	pages = {433 - 436},
	publisher = {Trans Tech Publ},
	address = {Bologna, Italy},
	abstract = {This report is a preliminary study of a starch-based copolymer that was used as a bone substitute. The interest of this study was to evaluate the possibility of using a hydrophilic material as a bone substitute. We studied this copolymer alone, after phosphorylation, and after hydroxyapatite coating.},
	keywords = {Biocompatibility, Bone, Bone substitute, Copolymers, Ethanol, Ethylene, hydroxyapatite, Hydroxyapatite coating, Implants (surgical), orthopedics, Phosphates, phosphoric acid, Phosphorylation, Starch, Substitution reactions, Vinyl resins},
	isbn = {10139826 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0035154394\&partnerID=40\&md5=5d1aeeb7f6cb4dcb467e586e58ba425a},
	author = {Souillac, V. and Fricain, J.C. and Bareille, R. and Reis, R.L. and Chauveaux, D. and Baquey, C.}
}
@article {2538,
	title = {Stearyl poly(ethylene oxide) grafted surfaces for preferential adsorption of albumin},
	journal = {BiomaterialsBiomaterials},
	volume = {22},
	year = {2001},
	note = {Cited By (since 1996): 26Export Date: 21 November 2012Source: ScopusCODEN: BIMADdoi: 10.1016/S0142-9612(01)00048-5PubMed ID: 11575476Language of Original Document: EnglishCorrespondence Address: Ji, J.; Department of Polymer Science, Zhejiang University, Hangzhou 310027, China; email: @@@Chemicals/CAS: Biocompatible Materials; Fibrinogen, 9001-32-5; Ligands; polyethylene glycol-polystyrene; Polyethylene Glycols; Polystyrenes; Serum Albumin; Stearates; stearyl poly(ethylene oxide)References: Andrade, J.D., Nagaoka, S., Cooper, S., Okano, T., Kim, S.W., Surface and blood compatibility; current hypothesis (1987) ASAIO Trans, 33 (2), pp. 75-76;Ranter, B.D., The engineering of biomaterials exhibiting recognition and specificity (1996) J Mol Recognition, 9, pp. 617-625; 
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Gallo BM, Russo S. In: Platzer NAJ, editor. Copolymer, polymers and composites. Washington, DC, 1975. p. 85Neumann AW, Good RJ. In: Good RJ, Stromberg RR, editors. Surface and colloid science, vol. 11, Experimental methods. New York: Plenum Press, 1979. p. 31Brash, J.L., Davidson, V.J., Adsorption of glass and polyethylene from solutions of fibrinogen and albumin (1976) Thromb Res, 9 (3), pp. 249-259; 
Lide DR. In: Lider DR, editor. Surface tension of common liquids, Handbook of chemistry and physics. Boca Raton, FL: CRC Press, 1996. p. 6-147Carel, J.V.O., (1994), pp. 170-177. , Carel J.V.O. (Ed.), Interfacial forces in aqueous media, New York: Marcel DekkerMori, Y., Nagaoka, S., Takiuchi, H., Kikuci, T., Noguchi, N., Tanzawa, H., Noishili, Y., A new antithrombogenic material with long polyethyleneoxide chains (1982) Trans Am Soc Artif Intern Organs, 28, pp. 459-463; 
Wu, D., Jian, K., (1995) Sci China (B), 25 (11), p. 1121; 
Wu, D., Jian, K., (1995) Sci China (B), 26 (5), p. 409; 
Walton, D.G., Soo, P.P., Mayes, A.M., Sofia Allgor, S.J., Fujii, J.T., Griffith, L.G., Ankner, J.F., Satija, S.K., Creation of stable poly(ethylene oxide) surfaces on poly(methyl methacrylate) using blends of branched and linear polymer (1997) Macromolecules, 30 (22), pp. 6947-6956; 
Walton, D.G., Mayes, A.M., Entropically driven segregation in blend of branched and liner polymers (1996) Phys Rev E, 54 (3), pp. 2811-2815
},
	month = {2001///},
	pages = {3015 - 3023},
	abstract = {An ideal surface for many biomedical applications would resist non-specific protein adsorption while at the same time triggering a specific biological pathway. Based on the approach of selectively binding albumin to free fatty acids, stearyl groups were immobilized onto poly(styrene) backbone via poly(ethylene oxide) side chains. X-ray photoelectron spectroscopy (XPS) analysis indicates substantial surface enrichment of the stearyl poly(ethylene oxide) (SPEO). In an aqueous environment, the surface rearrangement is limited, as proved by dynamic contact angle tests. The comb-like copolymer presents a special hydrophobic surface with high SPEO surface density, which may be due to the {\textquoteright}tail like{\textquoteright} SPEO architecture at the copolymer/water interface. Protein adsorption tests confirm that the comb-like surfaces adsorb high levels of albumin and resist fibrinogen adsorption very significantly. The surfaces prepared in this research attract and reversibly bind albumin due to the synergistic action of the PEO chains and the stearyl end groups. Copyright {\textcopyright} 2001 Elsevier Science Ltd.},
	keywords = {Adsorption, Albumin, Amphiphilic copolymer, article, Biocompatible Materials, Biomedical engineering, Catalyst selectivity, Cell immobilization, Contact angle, copolymer, Copolymers, density, Electron Probe Microanalysis, fibrinogen, Grafting (chemical), Humans, hydrophobicity, Ligands, macrogol, macrogol derivative, materials testing, Polyethylene Glycols, Polystyrenes, priority journal, Protein adsorption, protein binding, Proteins, roentgen spectroscopy, Serum Albumin, Stearates, Stearyl end groups, Surface Properties, surface property, Ultraviolet spectroscopy, X ray photoelectron spectroscopy},
	isbn = {01429612 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0035889824\&partnerID=40\&md5=9e163aafab1e37712839a8c35e902110},
	author = {Ji, J. and Feng, L. and Barbosa, M.A.}
}
@article {2565,
	title = {Brazing parameters determine the degradation and mechanical behaviour of alumina/titanium brazed joints},
	journal = {Journal of Materials ScienceJ Mater Sci},
	volume = {35},
	year = {2000},
	note = {Cited By (since 1996): 16Export Date: 21 November 2012Source: ScopusCODEN: JMTSAdoi: 10.1023/A:1004776117823Language of Original Document: EnglishCorrespondence Address: Paiva, O.C.; Inst de Engenharia Biomedica, Porto, PortugalReferences: Samandi, M., Gudze, M., Evans, P., Nucl, (1997) Instr. and Meth. in Phys. Res. B, 127-128, p. 669;Paiva, O.C., Barbosa, M.A., (1997) J. Mater. Sci., 32, p. 653; 
Moret, F., Eustathopoulos, N., (1993) J. Physique IV, 3, p. 1043. , Colloque C7; 
Suganuma, K., Okamoto, T., Koizumi, M., Shimada, M., (1985) J. Amer. Ceram. Soc., 68, pp. C334; 
Cao, H.C., Thouless, M.D., Evans, A.G., (1988) Acta Metall. Matter., 36, p. 2037; 
Hao, H., Wang, Y., Jin, Z., Wang, X., (1995) J. Amer. Ceram. Soc., 78, p. 2157; 
Yamada, T., Yokoi, K., Kohno, J., (1990) J. Mater. Sci., 25, p. 2188; 
Elssener, G., (1990) Joining of Ceramics, p. 128. , edited by M. G. Nicholas Chapman and Hall, London; 
Hao, H., Wang, Y., Jin, Z., Wang, X., (1995) J. Mater. Sci., 30, p. 4107; 
Suganuma, K., Okamoto, T., Koizumi, M., Shimada, M., (1985) J. Mater. Sci., 20, p. 648; 
Xian, A.P., Si, Z.Y., (1992) J. Mater. Sci., 27, p. 1560; 
Locatelli, M.R., Dalgleish, B.J., Nakashima, K., Tomsia, A.P., Glaeser, A.M., (1997) Ceramics International, 23, p. 313; 
Suganuma, K., (1990) Joining of Ceramics, p. 173. , edited by M. G. Nicholas Chapman and Hall, London; 
Murakawa, H., Ueda, Y., (1989) Trans. JWRI, 18, p. 295; 
Zhai, Y., North, T.H., Ren, J., (1997) J. Mater. Sci., 32, p. 1399; 
Nicholas, M.G., (1990) Joining of Ceramics, p. 73. , edited by M. G. Nicholas Chapman and Hall, London; 
Peteves, S.D., Ceccone, G., Paulasto, M., Stamos, V., Yvon, P., (1996) JOM, 48, p. 48; 
Li, J.G., (1994) Ceramics International, 20, p. 391; 
Loehman, R.E., Tomsia, A.P., (1992) Acta Metall. Mater., 40 (SUPPL.), pp. S75; 
Schwartz, M.M., (1990) Ceramic Joining, p. 75. , edited by M. M. Schwartz, ASM International, Ohio; 
Paiva, O.C., Barbosa, M.A., (1997) High Temperature Capillarity, p. 306. , edited by N. Eustathopoulos and N. Sobczak Foundry Research Institute, Cracow, Poland; 
Rocha, L.A., Barbosa, M.A., Puers, R., (1995) J. of Mater. Sci.: Mater. in Med., 6, p. 835; 
Idrissi, H., Audisio, S., Elmouaffek, S., Chastrette, M., (1987) Materiaux et Techniques, 10, p. 433; 
Idrissi, H., Millet, J.P., Audisio, S., Irhzo, A., (1994) J. of Mater. Science, 29, p. 5327; 
Niu, Y., Gesmundo, F., Viani, F., Wu, W., (1997) Oxidation of Metal, 47, p. 21; 
Stern, M., Geary, A.L., (1957) Corrosion, 13, p. 139; 
Paiva, O.C., Ferreira, L., Barbosa, M.A., (1998) Interfacial Science in Ceramics Joining, p. 329. , edited by A. Bellosi, T. Kosmac and A. P. Tomsia, NATO ASI Series, Kluwer Academic Publishers, Netherlands; 
Gubbels, G.H.M., Heikinheimo, L.S.K., Klomp, J.T., (1994) Z. Metall., 85, p. 828; 
Naka, S., Thomas, M., Khan, T., (1996) La Recherche A{\'e}rospatiale, 5-6, p. 373; 
(1992) Powder Diffraction File, , ASTM, Philadelphia, PA; 
Kolman, D.G., Scully, J.R., (1996) J. Electrochem. Soc., 143, p. 1847; 
Yau, T.E.-L., (1992) Werkstoffe und Korrosion, 43, p. 358; 
Sequeira, C.A.C., (1995) British Corrosion Journal, 30, p. 137; 
Uhlig, H.H., (1967) Corrosion and Corrosion Control, , John Wiley \& Sons, New York; 
Paiva, O.C., Barbosa, M.A., (1998) Bioceramics, 11, p. 699. , edited by R. Z. LeGeros and J. LeGeros World Scientific Publishing Co. Pte. Ltd., Singapore
},
	month = {2000///},
	pages = {1165 - 1175},
	publisher = {Kluwer Academic Publishers},
	abstract = {The main aims of the present study are simultaneously to relate tho brazing parameters with the correspondent interfacial microstructure, the resultant mechanical properties and the electrochemical degradation behaviour of commercially pure titanium/alumina brazed joints. A filler metal on the Ag-26.5Cu-3Ti system has been used. Three different brazing temperatures (850, 900 and 950 {\textdegree}C) and three holding times (0.3, 1.2, 2.4 ks) were tested, in order to understand the influence of each combination of brazing temperature holding times, over the final microstructure and properties of the joints. The mechanical properties of the M/C joints were assessed on the basis of bond strength tests carried out using a shear solicitation scheme. The fracture surfaces were studied morphologically and structurally using scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and X-ray diffraction analysis (XRD). The degradation behaviour of the M/C joints was assessed by means of electrochemical techniques. It was found that a brazing temperature of 850 {\textdegree}C and a holding time of 2.4 ks, produces the best results in terms of bond strength, 130{\textpm}16 MPa. The mechanical properties obtained could be explained on the basis of the different compounds identified on the fracture surfaces by XRD. On the other hand, a brazing temperature of 950 {\textdegree}C produces the best results in terms of corrosion rates (lower corrosion current), 3.44{\textpm}0.73 μA cm},
	keywords = {Alumina, Aluminum copper titanide, Brazing filler metals, Ceramic matrix composites, Degradation, Energy dispersive spectroscopy, fracture, Joints (structural components), Scanning electron microscopy, Silver alloys, Titanium, X ray diffraction analysis},
	isbn = {00222461 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0033881734\&partnerID=40\&md5=058678288fbb7c85032cae1530352c40},
	author = {Paiva, O.C. and Barbosa, M.A.}
}
@article {2553,
	title = {Concept, design and fabrication of smart orthopedic implants},
	journal = {Medical Engineering and PhysicsMed. Eng. Phys.},
	volume = {22},
	year = {2000},
	note = {Cited By (since 1996): 29Export Date: 21 November 2012Source: ScopusCODEN: MEPHEdoi: 10.1016/S1350-4533(00)00062-XPubMed ID: 11165144Language of Original Document: EnglishCorrespondence Address: Burny, F.; Service d{\textquoteright}Orthopedie-Traumatologie, Cliniques Universitaires Bruxelles, H{\^o}pital Erasme, Brussels, Belgium; email: fburny@ulb.ac.beChemicals/CAS: Biocompatible Materials; Ceramics; Metals; Stainless Steel, 12597-68-1References: Burny, F., Donkerwolcke, M., Moulart, F., Clinical application of the monitoring of orthopedic implants (1993), pp. 138-146. , Burny R, Puers F, editors. Monitoring of orthopedic implants. A biomaterials microelectronics - challenge. Amsterdam: ElsevierBurny, F., Zucman, J., Bourgois, R., Aubriot, J.H., Sedel, J., Utilisation des jauges extensom{\'e}triques pour la mesure de la consolidation des fractures du tibia trait{\'e}es par enclouage centrom{\'e}dullaire. Etude th{\'e}orique et premiers r{\'e}sultats (1971) Acta Orthop Belg, 37, pp. 266-277;Moulart, F., (1975) R{\'e}{\'e}ducation des fractures hautes du f{\'e}mur. Mesure des d{\'e}formations du mat{\'e}riel d{\textquoteright}ost{\'e}osynthese, , M{\'e}moire de Licence en Kin{\'e}sith{\'e}rapie, Universit{\'e} Libre de Bruxelles; 
Burny, F., Moulart, F., Hinsenkamp, M., Traitement des fractures m{\'e}tastatiques de la region sous-trochant{\'e}rienne. Etude biom{\'e}canique; cas cliniques (1976) Acta Orthop Belg, 42, pp. 31-41; 
Burny, F., Donkerwolcke, M., Telemetry in the musculoskeletal system (1991), pp. 391-394. , Payne PA, editor. Concise encyclopedia of biological and biomedical measurement systems. Oxford: Pergamon PressPuers, R., Burny, F., Biotelemetry in orthopaedics (1992), 3, pp. 285-306. , Muster D. et al., editors. European Materials Research Society Monographs. Biomaterials. Hard Tissue Repair and Replacement, Amsterdam: ElsevierKadefors, R., Kaiser, E., Petersen, I., Energizing implantable transmitters by means of coupled inductance coils (1969) IEEE Trans Biomed Eng, 16 BME, pp. 177-183; 
Ko, W.H., Liang, S.P., Fung, C.D.F., Design of radio-frequency powered coils for implant intruments (1977) Med Biol Eng Comput, 15, pp. 634-640; 
Donaldson, N., De, N., Perkins, T.A., Analysis of resonant coupled coils in the design of radio frequency trancutaneous links (1983) Med Biol Eng Comput, 21, pp. 612-627; 
Grossman, D.G., Machining a machinable glass-ceramic (1978) Vacuum, 28, pp. 55-61; 
Van Schuylenbergh, K., Puers, R., The influence of moisture leakage on implant strain measurements with resistive strain gauges (1993), pp. 125-137. , Burny R, Puers F, editors. Monitoring of orthopedic implants. A biomaterials microelectronics - challenge. Amsterdam: ElsevierWrangl{\'e}n, G., (1985) An introduction to corrosion and protection of metals, , London: Chapman \& Hall; 
Barbosa, M.A., Surface layers and the reactivity of metallic implants (1992), pp. 257-284. , Muster D, editor. Biomaterials - hard tissue repair and replacement, E-MRS Monographs. North-Holland: Elsevier ScienceNicholas, M.G., Active metal brazing (1986) British Ceramic Transactions Journal, 85, pp. 144-146; 
Pattee, H.E., Joining ceramics to metals and other materials (1972) Welding Research Council Bulletin, 178, pp. 2435-2442. , New York; 
Nicholas, M.G., Crispin, R.M., Brazing ceramics with alloys containing titanium (1989) Ceramic Engineering and Science Proceedings, 10, pp. 1602-1612; 
Rodes, F., Zardini, C., Devall, Y., Puers, R., Van Schuylenbergh, K., Burny, F., Donkerwolcke, M., Moulart, F., Direct digitization of low level transducer outputs for low power intracorporal telemetry systems (1993), pp. 401-409. , Mancini P, Fioretti S, editors. 12th Int. Symposium on Biotelemetry, Ancona. Pisa, Italy: Universitaria Litografia FeliciFlack, F.C., James, E.D., Schlapp, D.M., Mutual inductance of air-cored coils: Effect on design of radio-frequency coupled implants (1971) Med Biol Eng Comput, 9, pp. 79-85; 
},
	month = {2000///},
	pages = {469 - 479},
	abstract = {Extensive clinical experience has been built up using orthopaedic implants instrumented with strain gauges connected to a Wheatstone bridge by means of percutaneous leads. This research showed the medical relevance of the monitoring of the deformation of implants as a powerful tool to evaluate nursing and rehabilitation exercises, for tracing dangerous overloads and anticipating implant failure and also to observe the healing process. The IMPACT 3500 project focuses on the instrumentation of femoral implants with on board sensors: regular Benoist-Girard implants have been modified, to contain a {\textquoteright}sensing cell{\textquoteright}, and thoroughly tested in vitro and in vivo. The implant deformations are measured with resistive strain gauges, and the signal is transferred to a personal computer for processing and display, via a hard wired connection, or via a telemetry system. Two fully implantable wireless designs, called Linkstrain and Sealstrain, are powered from the outside by magnetic induction. As Sealstrain contains the whole telemetric system in its cavity, the highest miniaturization was required; this seriously deteriorates the efficiency of the inductive power link. {\textcopyright} 2001 IPEM.},
	keywords = {article, atomic absorption spectrometry, Biocompatible Materials, biomechanics, body movement, Bone Plates, ceramics, compression, Corrosion, Failure of implants, Femoral Fractures, femur, Fracture healing, healing, Humans, materials testing, metal, metal implantation, Metals, microcomputer, Microscopy, Electron, Scanning, Monitoring, Physiologic, Orthopedic implants, orthopedic surgery, priority journal, Prostheses and Implants, Prosthesis Design, prosthesis failure, Rehabilitation, Scanning electron microscopy, sensor, Sensors, Smart implants, Spectrum Analysis, Stainless steel, strain gauge transducer, Strain measurements, Stress, Mechanical, Telemetry, Weight-Bearing},
	isbn = {13504533 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-20244372369\&partnerID=40\&md5=456fea60c077d9bd4569169438349a07},
	author = {Burny, F. and Donkerwolcke, M. and Moulart, F. and Bourgois, R. and Puers, R. and Van Schuylenbergh, K. and Barbosa, M. and Paiva, O. and Rodes, F. and B{\'e}gueret, J.B. and Lawes, P.}
}
@article {2564,
	title = {Fetal heart rate baselines in twins: Interobserver agreement in antepartum estimation},
	journal = {Journal of Reproductive Medicine for the Obstetrician and GynecologistJ. Reprod. Med. Obstet. Gynecol.},
	volume = {45},
	year = {2000},
	note = {Cited By (since 1996): 2Export Date: 21 November 2012Source: ScopusCODEN: JRPMAPubMed ID: 10710739Language of Original Document: EnglishCorrespondence Address: Bernardes, J.; Depto. de Ginecologia e Obstetricia, Faculdade de Medicina do Porto, Al. Prof. Hernani Monteiro, 4200 Porto, Portugal; email: Jbernardes@mail.telepac.ptReferences: Sherman, S.J., Kovacs, B.W., Medearis, A.L., Nonstress test assessment of twins (1992) J Reprod Med, 37, pp. 804-808;Grant, J.M., The fetal heart rate is normal, isn{\textquoteright}t it?: Observer agreement of categorical assessments (1991) Lancet, 337, pp. 215-218; 
Cibils, L.A., On intrapartum fetal monitoring (1996) Am J Obstet Gynecol, 174, pp. 1382-1389; 
Bernardes, J., Costa-Pereira, A., Ayres-De-Campos, D., Evaluation of interobserver agreement of cardiotocograms (1997) Int J Gynecol Obstet, 57, pp. 33-37; 
Bernardes, J., Costa-Pereira, A., Van Geijn, H.P., A more objective fetal heart rate baseline estimation (1996) Br J Obstet Gynaecol, 103, pp. 714-715; 
Bernardes, J., Ayres-De-Campos, D., Costa-Pereira, A., Objective computerized fetal heart rate analysis (1998) Int J Gynecol Obstet, 62, pp. 141-147; 
Bland, J.M., Altman, D.G., Statistical methods for assessing two methods of clinical measurement (1986) Lancet, 11, pp. 307-310; 
Armitage, P., Berry, G., (1994) Statistical Methods in Medical Research, pp. 273-276. , Oxford, Blackwell Science Ltd; 
Khan, K.S., Chien, P.F.W., Honest, M.R., Evaluating measurement variability of clinical investigations: The case of ultrasonic estimation of urinary bladder volume (1997) Br J Obstet Gynaecol, 104, pp. 1036-1043; 
Devoe, L.D., Carlton, E., Prescott, P., Neural network prediction of nonstress test results: How often should we perform nonstress tests? (1995) Am J Obstet Gynecol, 173, pp. 1128-1131; 
Bernardes, J., Ayres De Campos, D., Costa-Pereira, A., Baseline estimation in typical fetal heart rate patterns using different computerized methods (1997) Acta Obstet Gynecol Scand (Suppl), 76, p. 56; 
},
	month = {2000///},
	pages = {105 - 108},
	abstract = {OBJECTIVE: To assess interobserver agreement in antepartum estimation of fetal heart rate (FHR) baselines in twins. STUDY DESIGN: Two residents and one specialist in obstetrics and gynecology, all with special interest in FHR monitoring, independently estimated baselines in 162 consecutive antepartum FHR tracings recorded in 24 twins. Tracings were obtained with a dual-channel fetal monitor for the simultaneous recording of both twins{\textquoteright} heart rates. Baselines were estimated, as single values corresponding to the mean of the lowest stable FHR segment, in the absence of fetal movements and uterine contractions, within physiologic limits (110-150 beats per minute [bpm]). If these criteria were not met, the possibility of persistent bradycardia or tachycardia was considered, and if this was confirmed in a tracing with at least 40 minutes, a baseline < 110 or > 150 bpm was chosen. Interobserver agreement was assessed by the proportions of agreement (PA), kappa statistic (K) and intraclass correlation coefficient (ICCC), with 95\% confidence intervals (CIs). RESULTS: Interobserver agreement was excellent, with a PA of 0.90 (95\% CI: 0.89-0.91), K of 0.88 (95\% CI: 0.84-0.92) and ICCC of 0.91 (95\% CI: 0.88-0.94). CONCLUSION: Interobserver agreement in antepartum estimation of fetal heart rate baselines in twins was excellent with the baseline concept used in this study.},
	keywords = {adult, article, clinical article, Electrocardiography, Female, Fetal heart rate, Fetal monitoring, fetus, fetus heart rate, fetus monitoring, Heart rate variability, Heart Rate, Fetal, human, Humans, Internship and Residency, observer variation, Obstetrics, Pregnancy, Prenatal Care, priority journal, Professional Competence, Twins},
	isbn = {00247758 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0034002107\&partnerID=40\&md5=82b6075749b0531b00b1195b539b4bb3},
	author = {Bernardes, J. and Costa-Pereira, A. and Calejo, L. and Ayres-de-Campos, D. and Patr{\'\i}cio, B. and Pereira-Leite, L.}
}
@article {2562,
	title = {Object recognition in image sequences with cellular neural networks},
	journal = {NeurocomputingNeurocomputing},
	volume = {31},
	year = {2000},
	note = {Cited By (since 1996): 14Export Date: 21 November 2012Source: ScopusCODEN: NRCGEdoi: 10.1016/S0925-2312(99)00177-0Language of Original Document: EnglishCorrespondence Address: Buker, U.; Heinz Nixdorf Institute, University of Paderborn, Department of Electrical Engineering, 33095 Paderborn, Germany; email: bueker@get.uni-paderborn.deReferences: Bradski, G., Grossberg, S., Fast-learning VIEWNET architectures for recognizing three-dimensional objects from multiple two-dimensional views (1995) Neural Networks, 8 (7-8), pp. 1053-1080;B{\"u}ker, U., Hartmann, G., Knowledge based view control of a neural 3D object recognition system (1996) In: Proceedings of the 13th International Conference on Pattern Recognition, ICPR{\textquoteright}96, Wien, 4, pp. 24-29. , IEEE Computer Soc. Press, Los Alamitos; 
B{\"u}ker, U., Hybrid object models: combining symbolic and subsymbolic object recognition strategies (1998) In: Proceedings of the 4th International Conference on Information Systems, Analysis, and Synthesis, 1, pp. 444-451. , IIIS, Orlando; 
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B{\"u}lthoff, H., Edelman, S., Tarr, M., How are three-dimensional objects represented in the brain? (1994) Technical Report, A.I.Memo N1479, , Massachusetts Institute of Technology, A.I. Lab; 
Chua, L.O., Yang, L., Cellular neural networks: Theory (1988) IEEE Trans. Circuits Systems, 35, pp. 1257-1272; 
Chua, L.O., Roska, T., The CNN Paradigm (1993) IEEE Trans. Circuits Systems (Part I) CAS-40, 3, pp. 559-577; 
Fu, L.M., Analysis of the dimensionality of neural networks for pattern recognition (1990) Pattern Recognition, 23, pp. 1131-1140; 
Grassi, G., A new approach to design cellular neural networks for associative memories (1997) IEEE Trans. Circuits Systems - I Fundam. Theory Appl., 44 (9), pp. 362-366; 
Hartmann, G., Dr{\"u}e, S., Dunker, J., Kr{\"a}uter, K.O., Mertsching, B., Seidenberg, E., The SENROB Vision-System and its Philosophy (1994) In: Proceedings of the 12th International Conference on Pattern Recognition ICPR{\textquoteright}94, 2, pp. 573-576. , Jerusalem, IEEE Computer Soci. Press, Los Alamitos; 
Hartmann, G., B{\"u}ker, U., Dr{\"u}e, S., A hybrid neuro-artificial intelligence architecture (1999) Handbook on Computer Vision and Applications, 3, pp. 153-196. , in: B. J{\"a}hne et al. (Eds.), Academic Press, San Diego; 
Hebert, M., (1995) Object Recognition in Computer Vision, , (Eds.), Springer, New York; 
Kikuchi, M., Fukushima, K., Neural network model of the visual system: Binding: Form and motion (1996) Neural Networks, 9 (8), pp. 1417-1427; 
Kosslyn, S.M., (1995) Image and Brain, , Cambridge: MIT Press; 
Lin, W.G., Wang, S.S., A new neural model for invariant pattern recognition (1996) Neural Networks, 9 (5), pp. 899-913; 
Little, J., Boyd, J., Describing motion for recognition (1995) IEEE Symp. Comput. Vision, pp. 235-240; 
Little, J., Boyd, J., (1997) Recognizing People by their Gait: The Shape of Motion, , http://www-vision.ucsd.edu/, On-line document; 
Liu, D., Michel, A., Sparsely interconnected neural networks for associative memories with applications to cellular neural networks (1994) IEEE Trans. Circuits Systems - II Analog Digital Signal Process, 41 (4), pp. 295-307; 
Liu, D., Cloning template design of cellular neural networks for associative memories (1997) IEEE Trans. Circuits Systems - I Fundam. Theory Appl., 44 (7), pp. 646-650; 
Liu, D., Lu, Z., A new synthesis approach for feedback neural networks based on the perceptron training algorithm (1997) IEEE Trans. Neural Networks, 8 (6), pp. 1468-1482; 
Michel, A., Jie Si, Yen, G., Analysis and Synthesis of a Class of Discrete-Time Neural Networks Described on Hypercubes (1991) IEEE Trans. Neural Networks, 2 (1), pp. 32-46; 
Pandya, A., MacY, R., (1996) Pattern Recognition with Neural Networks in C++, , CRC Press, Florida; 
Rekecsky, C., Roska, T., Ushida, A., CNN-based difference-controlled adaptive non-linear image filters (1998) Internat. J. of Circuit Theory Appl., 26 (4), pp. 374-423; 
Roska, T., Vandewalle, J., (1993) Cellular Neural Networks, , John Wiley \& Sons, New York; 
Szolgay, P., Szatmari, I., Laszlo, K., A Fast Fixed Point Learning Method to Implement Associative Memory on CNN{\textquoteright}s (1997) IEEE Trans. Circuits Systems-I: Fundamental Theory and Applications, 44 (4), pp. 362-366; 
Treisman, A., A feature-integration theory of attention (1980) Cognitive Psychology, 12, pp. 97-136; 
Tn, S., Hao, J., Vanderwalle, J., Cellular neural networks as a model of associative memories (1990) Proceedings of the CNNA-90, pp. 26-35. , Budapest, IEEE, New York
},
	month = {2000///},
	pages = {125 - 141},
	publisher = {Elsevier Science B.V.},
	abstract = {In this paper, the application of CNN associative memories for 3D object recognition is presented. The main idea is to analyse the optical flow in an image sequence of an object. Several features of the optical flow between two succeeding images are calculated and merged to a time series of features for the whole image sequence. These features show several object specific characteristics and are used for a classification step in an object recognition system. Therefore, the feature vectors of an object set are learnt and recalled by an associative memory based on the paradigm of cellular neural networks (CNN). (C) 2000 Elsevier Science B.V.In this paper, the application of CNN associative memories for 3D object recognition is presented. The main idea is to analyze the optical flow in an image sequence of an object. Several features of the optical flow between two succeeding images are calculated and merged to a time series of features for the whole image sequence. These features show several object specific characteristics and are used for a classification step in an object recognition system. Therefore, the feature vectors of an object set are learnt and recalled by an associative memory based on the paradigm of cellular neural networks (CNN).
},
	keywords = {algorithm, artificial neural network, Associative memory, Associative storage, Cellular neural networks, Computational methods, computer system, Image analysis, Image sequences, mathematical computing, Object recognition, Optical flow, Optical flows, Pattern recognition, Pattern recognition systems, priority journal, review, Three dimensional computer graphics, Time series analysis, Vectors},
	isbn = {09252312 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0343852159\&partnerID=40\&md5=ecb858090fa38d7d39e6142515efac59},
	author = {Milanova, M. and B{\"u}ker, U.}
}
@conference {2554,
	title = {Remote foetal heart rate acquisition and analysis},
	booktitle = {Computers in CardiologyComput Cardiol},
	series = {Computers in Cardiology 2000},
	year = {2000},
	note = {Conference code: 45063Cited By (since 1996): 1Export Date: 21 November 2012Source: ScopusCODEN: COCADLanguage of Original Document: EnglishCorrespondence Address: Marques, P.; INEB - Instituto de Engenharia, Biomedica, Porto, Portugal},
	month = {2000///},
	pages = {573 - 574},
	publisher = {IEEE},
	organization = {IEEE},
	address = {Cambridge, MA, USA},
	abstract = {The remote foetal monitoring and analysis is part of INTERCARE project - an integrated healthcare system applied to Electrocardiography and Cardiotocography. Its aim is to provide low cost and wide spread technological infrastructure that supports an integrated healthcare system to users and healthcare providers. This paper illustrates the work done in the cardiotocography area. We have developed a system for remote acquisition and analysis of FHR. The system uses a portable {\textquoteright}foetal detector{\textquoteright} which can be used by the pregnant woman to acquire the heart beats. This detector sends a modulated audio signal via the telephone line or a computer connected to Internet. At the processing end the signal received by the telephone can be switched to the computer sound acquisition board. The signal is then processed by an application that reads from the soundcard. Due to the noise added by devices and telephone lines, the signal is filtered using optimal FIR filters and is decimated until its band of interest covers the peaks of the heart sounds. Next the signal is processed by a specially developed adaptive correlation algorithm in order to obtain the heart beat instants. The whole process operates in real time. The adaptive correlation algorithm performs a continuous adjustment of the heart beat template and threshold detection levels.},
	keywords = {Adaptive algorithms, Adaptive correlation algorithm, Cardiology, Cardiotocography, Client server computer systems, Data acquisition, Data warehouse, Database systems, Electrocardiography, FIR filters, Foetal heart rate, Internet, Patient monitoring, Remote foetal monitoring, Signal filtering and prediction, Sonoscope, Spurious signal noise, Telephone},
	isbn = {02766574 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0034474836\&partnerID=40\&md5=c85d04aba26fdb2f92645c8b762f8c40},
	author = {Marques, P. and Marques de Sa, J.P. and Bernardes, J. and Sousa, P.}
}
@article {2559,
	title = {Self-assembly and surface structure of an amphiphilic graft copolymer, polystyrene-graft-ω-stearyl-poly(ethylene oxide)},
	journal = {Journal of Colloid and Interface ScienceJ. Colloid Interface Sci.},
	volume = {224},
	year = {2000},
	note = {Cited By (since 1996): 12Export Date: 21 November 2012Source: ScopusCODEN: JCISAdoi: 10.1006/jcis.2000.6729Language of Original Document: EnglishCorrespondence Address: Ji, J.; Instituto de Engenharia Biomedica, Laboratorio de Biomateriais, Rua do Campo Alegre, 823, 4150-180 Porto, Portugal; email: jian@ibmc.up.ptChemicals/CAS: macrogol, 25322-68-3; polystyrene, 9003-53-6; stearic acid, 57-11-4, 646-29-7References: Brash, J.L., (1983) Biocompatible Polymer, Metals and Composites, p. 35. , M. Szycher. Lancaster: Technomic;Gombotz, W.R., Guanghui, W., Horbett, T.A., Hoffman, A.S., (1991) J. Biomed. Mater. Res., 25, p. 1547; 
Munro, M.S., Quattrone, A.J., Ellsworth, S.R., Kulkarni, P., Eberhart, R.C., (1981) Trans. ASAIO, 17, p. 499; 
Grasel, T.G., Pierce, J.A., Cooper, S.L., (1987) J. Biomed. Mater. Sci., 21, p. 815; 
Duncan, A.C., Sefton, M.V., Brash, J.L., (1997) Biomaterials, 18, p. 1585; 
Keogh, J.R., Velander, F.F., Eaton, W., (1992) J. Biomed. Mater. Sci., 26, p. 441; 
Lee, J.H., Jeong, B.J., Lee, H.B., (1997) J. Biomed. Mater. Sci., 34, p. 105; 
Bots, J.G.F., Van Der Does, L., Bentjes, A., (1986) Biomaterials, 7, p. 393; 
Osterberg, E., Holmberg, K., Schuman, T.P., Riggs, J.A., Burns, N.L., Van Alstine, J.M., Harris, J.M., (1995) J. Biomed. Mater. Res., 29, p. 741; 
Hubbell, J.A., (1997) Polym. Prepr., 38, p. 528; 
Harris, J.M., (1997) Polym. Prepr., 38, p. 520; 
Qiu, Y.X., Yu, X.J., Feng, L.X., (1992) Markromol. Chem., 173, p. 1377; 
Neumann, A.W., Good, R.J., (1979) Surface and Colloid Science, Vol. 11, Experimental Methods, p. 31. , R. J. Good, \& R. R. Stromberg. New York: Plenum Press; 
Ji, J., Feng, L., Qiu, Y., Yu, X., (1998) Macromol. Rapid Commun., 19, p. 473; 
Cameron, G.G., (1989) Comprehensive Polymer Science, Polymer Characterization, p. 517. , S. G. Allen. Oxford: Pergamon Press; 
Andrade, J.D., Ma., S.M., (1979) J. Colloid Interface Sci., 12, p. 488; 
Ranter, B.D., (1985) Surface and Interfacial Aspects of Biomedical Polymers Vol.1, p. 374. , J. D. Andrade. New York: Plenum Press; 
Takahara, A., Jo, N.J., Kajiyama, T., (1989) J. Biomater. Sci. Polym. Ed., 1, p. 17; 
Lide, D.R., (1996) Handbook of Chemistry and Physics, , D. R. Lider. Boca Raton: CRC Press; 
Van Oss, C.J., (1994) Interfacial Forces in Aqueous Media, pp. 170-177. , C. J. Van Oss. New York: Marcel Dekker Inc; 
Gombotz, W.R., Guanhui, W., Horebett, T.A., Hoffman, A.S., (1992) Poly(ethylene Glycol) Chemistry: Biotechnical and Biomedical Application, pp. 247-261. , J. M. Harris. New York: Plenum Press; 
Wu, D., Jian, K., (1995) Sci. China (B), 25, p. 1121; 
Wu, D., Jian, K., (1995) Sci. China (B), 26, p. 409; 
Ji, J., Feng, L., Qiu, Y., Yu, X., Polymer, , in press; 
Hester, J.F., Banerjee, P., Mayes, A.M., (1999) Macromolecules, 32, p. 1643
},
	month = {2000///},
	pages = {255 - 260},
	abstract = {Surface properties of the polystyrene-graft-ω-stearyl-poly(ethylene oxide) (PS-g-SPEO) have been characterized by X-ray photoelectron spectroscopy (XPS), differential scanning calorimetry (DSC), contact angle, and spin probe techniques. The XPS results indicate that the surface and bulk composition of the PS-g-SPEO copolymers differ remarkably from each other. The stearyl and EO components enrich at the copolymer/air interfaces due to the self-assembly of the stearyl groups. At the PS-g-SPEO-72.6 surface (the x in PS-g-SPEO-x indicates the bulk density of the SPEO in wt\%), the self- assembly of the hydrophobic stearyl groups is strong enough to form a stable liquid crystalline phase as indicated by DSC. At polymer/water interfaces, PS-g-SPEO-72.6 presents a hydrophilic surface with low PEO mobility, whereas PS-g-SPEO-50.6 and PS-g-SPEO-31.0 present the hydrophobic surface with high PEO mobility. The two different types of the surfaces, with different characters in surface energy, surface mobility of PEO, and surface architecture of SPEO, will be quite valuable as models for detecting the synergistic action of the PEO chains and the stearyl groups (specific ligand for albumin binding) in protein solutions. (C) 2000 Academic Press.},
	keywords = {Amphiphilic copolymer, article, biomaterial, copolymer, crystal, differential scanning calorimetry, electron microscopy, electron spin resonance, hydrophobicity, macrogol, polystyrene, priority journal, protein assembly, protein binding, protein structure, Self-assembly, stearic acid, Surface structure, X ray analysis},
	isbn = {00219797 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0034655268\&partnerID=40\&md5=1628a0cfec8d5ced3e11c87d74ceae44},
	author = {Ji, J. and Feng, L. and Qiu, Y. and Yu, X. and Barbosa, M.A.}
}
@article {2567,
	title = {Enhancement of the mechanical properties of a high-density polyethylene},
	journal = {Journal of Applied Polymer ScienceJ. Appl. Polym. Sci.},
	volume = {73},
	year = {1999},
	note = {Cited By (since 1996): 48Export Date: 21 November 2012Source: ScopusCODEN: JAPNAdoi: 10.1002/(SICI)1097-4628(19990919)73:12<2473::AID-APP16>3.0.CO;2-OLanguage of Original Document: EnglishCorrespondence Address: Kalay, Gurhan; Brunel Univ, Middlesex, United KingdomReferences: Kalay, G., Allan, P.S., Bevis, M.J., (1997) Kunststoffe, 87, p. 6;Kalay, G., Bevis, M.J., (1997) J Polym Sci Polym Phys, 35, p. 241; 
Kalay, G., Bevis, M.J., (1997) J Polym Sci Poly Phys, 35, p. 265; 
Kalay, G., Bevis, M.J., (1997) J Polym Sci Polym Phys, 35, p. 415; 
Kalay, G., Ogbonna, C.I., Allan, P.S., Bevis, M.J., (1995) Trans IChemE Part A Chem Eng Res Design, 73, p. 798; 
Keller, A., Kolnaar, H., (1997) Mat Sci Technol, 18, p. 191; 
Allan, P.S., Bevis, M.J., (1987), British Patent 2170-140-BAllan, P.S., Bevis, M.J., (1990) Composites Manufact, 1, p. 79; 
Wang, L., Allan, P.S., Bevis, M.J., (1995) Plastics Rubber Composites Process Appl, 23, p. 139; 
Gil, E.M., Kalay, G., Allan, P.S., Bevis, M.J., (1997) Polymer Process Engineering 97, pp. 40-54. , Coates, P. D., Ed.; The Institute of Materials: London; 
Ogbonna, C.I., Kalay, G., Allan, P.S., Bevis, M.J., (1995) J Appl Polym Sci, 58, p. 2131; 
Kub{\'a}t, J., M{\r a}nson, J.A., (1983) Polym Eng Sci, 23, p. 86; 
Kub{\'a}t, J., M{\r a}nson, J.A., Rigdahl, M., (1983) Polym Eng Sci, 23, p. 877; 
Boldizar, A., Kub{\'a}t, J., Rigdahl, M., (1990) J Appl Polym Sci, 39, p. 63; 
Guan, Q., Shen, K., Ji, J., Zhu, J., (1995) J Appl Polym Sci, 55, p. 1797; 
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Ross, J.P., (1998) Taguchi Techniques for Quality Engineering, , McGraw-Hill: New York; 
Schmidt, S.R., Launsby, R.G., (1994) Understanding Industrial Designed Experiments, 4th Ed., , Air Academy Press: CO; 
Montgomery, D.C., (1991) Design and Analysis of Experiments, 3rd Ed., , Wiley: New York
},
	month = {1999///},
	pages = {2473 - 2483},
	publisher = {John Wiley \& Sons Inc},
	abstract = {This paper describes the process optimization in injection molding of high-density polyethylene (HDPE). Both conventional injection molding and shear controlled orientation (SCORIM) were employed in processing. The process optimization was based on design of experiments and complemented with analysis of variance. Mechanical characterization was carried out by tensile testing. Wide-angle X-ray diffraction and differential scanning calorimetry were used for the structural characterization of the moldings. High-density polyethylene exhibits 7.2 GPa Young{\textquoteright}s modulus and 155 MPa of ultimate tensile strength following the application of SCORIM processing. These results account for a fourfold increase in Young{\textquoteright}s modulus and a fivefold increase in ultimate tensile strength compared to conventional injection molding. The maintenance of toughness while enhancing stiffness and strength of the SCORIM moldings is attributable to an oriented morphology developed during shear flow, i.e., shish-kebab structure. The frequency of shearing action has the strongest influence on the morphology development. It is also demonstrated that the studied parameters are very much interdependent. It is possible to achieve substantial gains in mechanical properties of HDPE in SCORIM processing without causing a substantial increase in cycle time.},
	keywords = {differential scanning calorimetry, Elastic moduli, High density polyethylenes, Injection molding, morphology, Optimization, Shear controlled orientation in injection molding, Shear flow, Shish kebab structure, Stiffness, Strength of materials, tensile strength, Tensile testing, Toughness, Wide angle X ray diffraction, X ray diffraction analysis},
	isbn = {00218995 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0033347604\&partnerID=40\&md5=14466d58532f85bbaeac12f9903bc066},
	author = {Kalay, G. and Sousa, R.A. and Reis, R.L. and Cunha, A.M. and Bevis, M.J.}
}
@article {2590,
	title = {Classification of foetal heart rate sequences based on fractal features},
	journal = {Medical and Biological Engineering and ComputingMed. Biol. Eng. Comput.},
	volume = {36},
	year = {1998},
	note = {Cited By (since 1996): 13Export Date: 21 November 2012Source: ScopusCODEN: MBECDdoi: 10.1007/BF02510743PubMed ID: 9684460Language of Original Document: EnglishCorrespondence Address: Felguiras, C.S.; Instituto de Engenharia Biomedica, Praca Coronel Pacheco 1, 4050 Porto, PortugalReferences: Bernardes, J., (1993) Leitura Automatizada Do Cardiotocograma. Desenvolvimento e Availia{\c c}{\`a}o, , Ph.D. thesis, Faculdade de Medicina da Universidade do Porto, Portugal;Bernardes, J., Moura, C., Marques De S{\'a}, J.P., Pereira Leite, L., Van Geijn, H.P., The Porto system (1994) A Critical Appraisal of Foetal Surveillance, pp. 315-324. , VAN GEIJN H. P. and COPRAY, F. J. A. (Eds.) Elsevier Science, Amsterdam; 
Chaffin, D.G., Goldberg, C.C., Reed, K.L., The dimension of chaos in foetal heart rate (1991) Am. J. Obstet. Gynecol., 165 (5), pp. 1425-1429; 
Dawes, G.S., Visser, G.H.A., Goodman, J.D.S., Redman, C.W.G., Numerical analysis of human foetal heart rate: The quality of ultrasound records (1981) Am. J. Obstet, Gynecol., 141 (1), pp. 43-52; 
Felgueiras, C.S., Marques De S{\'a}, J.P., Bernardes, J., Gama, S., On the reconstruction of foetal heart rate sequences (1996) Actas de Bieng {\textquoteright}96, Sociedade Portuguesa de Engenharia Biom{\'e}dica, Aveiro, Mar{\c c}o, 1996, pp. VII61-VII65; 
Goldberger, A.L., Fractal mechanisms in the electrophysiology of the heart (1992) IEEE Eng. Med. Biol., pp. 47-52. , June; 
Grant, A., Principles for clinical evaluation of methods of perinatal monitoring (1984) J. Perinat. Med., 12, pp. 227-231; 
Grassberger, P., Procaccia, I., Measuring the strangeness of strange attractors (1983) Physica D, 9, pp. 189-208; 
Higushi, T., Approach to an irregular time series on the basis of the fractal theory (1988) Physica D, 31, pp. 277-283; 
Hoyer, D., Liebovitch, L.S., Schmidt, K., Luethke, B., Zwiener, U., Practical problems of determining the dimensions of heart rate data (1997) Med. Biol. Eng. Comput., 35, pp. 27-32; 
Maldelbrot, B.B., Van Ness, J.W., Fractional Brownian motions, fractional noises and applications (1968) SIAM Rev., 10 (4), pp. 422-437; 
Marques De Sa, J.P., Moura, A.C., Bernardes, J., Pereira Leite, L., An{\'a}lise autom{\'a}tica de sinais cardiotocogr{\'a}ficos (1992) Acta M{\'e}dica Portuguesa 11 S{\'e}rie, 5 (1), pp. 28-30; 
Parker, T.S., Chua, L.O., (1989) Practical Numerical Algorithms for Chaotic Systems, , Springer-Verlag; 
Schulman, H., Schulman, S., Lai, P., Schneider, E., Farmakides, G., Dawes, G., Antepartum computerized foetal heart rate, chaos analysis, blood gases and perinatal outcome (1994) J. Maternal-Fetal Invest., 4, pp. 59-63
},
	month = {1998///},
	pages = {197 - 201},
	publisher = {Peter Peregrinus Ltd},
	abstract = {Visual inspection of foetal heart rate (FHR) sequences is an important means of foetal well-being evaluation. The application of fractal features for classifying physiologically relevant FHR sequence patterns is reported. The use of fractal features is motivated by the difficulties exhibited by traditional classification schemes to discriminate some classes of FHR sequence and by the recognition that this type of signal exhibits features on different scales of observation, just as fractal signals do. To characterise the signals by fractal features, two approaches are taken. The first models the FHR sequences as temporal fractals. The second uses techniques from the chaos-theory field and aims to model the attractor based on FHR sequences. The fractal features determined by both approaches are used to design a Bayesian classification scheme. Classification results for three classes are presented; they are quite satisfactory and illustrate the importance of this type of methodology.Visual inspection of foetal heart rate (FHR) sequences is an important means of foetal well-being evaluation. The application of fractal features for classifying physiologically relevant FHR sequence patterns is reported. The use of fractal features is motivated by the difficulties exhibited by traditional classification schemes to discriminate some classes of FHR sequence and by the recognition that this type of signal exhibits features on different scales of observation, just as fractal signals do. To characterise the signals by fractal features, two approaches are taken. The first models the FHR sequences as temporal fractals. The second uses techniques from the chaos-theory field and aims to model the attractor based on FHR sequences. The fractal features determined by both approaches are used to design a Bayesian classification scheme. Classification results for three classes are presented; they are quite satisfactory and illustrate the importance of this type of methodology.
},
	keywords = {article, Bayes Theorem, Cardiology, Chaos techniques, Chaos theory, Classification, Computer aided analysis, Computer simulation, Electrocardiography, Female, Fetal monitoring, fetus, fetus heart rate, FHR classification, FHR sequence, Foetal heart rate sequences, fractal analysis, Fractal features, Fractals, Heart Rate, Fetal, human, Humans, Pattern recognition, Pregnancy, Signal Processing, Computer-Assisted, technique},
	isbn = {01400118 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0032033010\&partnerID=40\&md5=563144fcdb064dd777002155aaa62f73},
	author = {Felgueiras, C.S. and De Marques S{\'a}, J.P. and Bernardes, J. and Gama, S.}
}
@article {2582,
	title = {In vitro testing of surface-modified biomaterials},
	journal = {Journal of Materials Science: Materials in MedicineJ. Mater. Sci. Mater. Med.},
	volume = {9},
	year = {1998},
	note = {Cited By (since 1996): 16Export Date: 21 November 2012Source: ScopusCODEN: JSMMEdoi: 10.1023/A:1008896106994Language of Original Document: EnglishCorrespondence Address: Leitao, E.; INEB-Instituto Engenharia Biomedica, FEUP-Faculdade de Engenharia, Universidade do Porto, Praca Coronel Pacheco 1, 4050 Porto, Portugal; email: eleitao@fsl.ho.man.ac.ukChemicals/CAS: calcium, 7440-70-2; carbon, 7440-44-0; nitrogen, 7727-37-9; stainless steel, 12597-68-1Tradenames: 316 L, aubert and duval; Thermanox; Ti-5Al-2.5Fe, deutsch titan; Ti-6Al-4V, deutsch titanManufacturers: aubert and duval; deutsch titanReferences: Kirkpatrick, C.J., Mittermayer, C., (1990) J. Mater. Sci. Mater. Med., 1, p. 9;Van Loon, J., (1995), PhD thesis, University of Leiden, The NetherlandsLi, P., De Groot, K., (1991) J. Mater. Sci. Mater. Med., 2, p. 125; 
Davies, J.E., (1990) Handbook of Bioactive Ceramics, 1, pp. 1-65. , edited by T. Yamamuro et al., CRC Press, Boca Raton, FL; 
Davies, J.E., Ottensmeyer, P., Shen, X., Hashimoto, M., Peel, S.A.F., (1991) Proceedings of the Bone Biomaterial Interface Workshop, pp. 214-228. , edited by J. E. Davies University of Toronto Press, Toronto; 
Gristina, A.G., Naylor, P., Myrvik, Q., (1988) Med. Progr. Through Technol., 14, p. 205; 
Kirkpatrick, C.J., Otterbach, T., Ander-Heiden, D., Schifer, J., Richter, H., H{\"o}cker, H., Mittermayer, C., Dekker, A., (1992) Cells Mater., 2, p. 169; 
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Howlett, C.R., Zreiqat, H., O{\textquoteright}Dell, R., Noorman, J., Evans, P., Dalton, B.A., McFarland, C., Steele, J.G., (1994) J. Mater. Sci. Mater. Med., 5, p. 715; 
Lee, J.-S., Kaibara, M., Iwaki, M., Sasabe, H., Suzuki, Y., Kusakabe, M., (1993) Biomaterials, 14, p. 958; 
R{\"o}stlund, T., Thomsen, P., Bjursten, L.M., Ericson, L.E., (1990) J. Biomed. Mater. Res., 24, p. 847; 
Johansson, C.B., Lausmaa, J., R{\"o}stlund, T., Thomsen, P., (1993) J. Mater. Sci. Mater. Med., 4, p. 132; 
Harmand, M.-F., Naji, A., Gonfrier, P., (1994) Clin. Mater., 15, p. 281; 
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Puleo, D.A., Holleran, L.A., Doremus, R.H., Bizios, R., (1991) J. Biomed. Mater. Res., 25, p. 711; 
Davies, J.E., Lowenberger, B., Shiga, A., (1990) J. Biomed. Mater. Res., 24, p. 1289; 
De Bruijn, J.D., Klein, C.P.A.T., De Groot, K., Van Blitterswijk, C.A., (1993) Cells Mater., 3, p. 407; 
Gaillard, M.L., (1995), PhD thesis, University of Leiden, The NetherlandsRadder, A.M., Davies, J.E., Leenders, H., Van Blitterswijk, C.A., (1994) J. Biomed. Mater. Res., 28, p. 269; 
Shen, X., Roberts, E., Peel, S.A.F., Davies, J.F., (1993) Cells Mater., 3, p. 257; 
Gomi, K., Davies, J.E., (1993) J. Biomed. Mater. Res., 27, p. 429; 
De Bruijn, J.D., Klein, C.P.A.T., De Groot, K., Van Blitterswijk, C.A., (1992) J. Biomed. Mater. Res., 26, p. 1365; 
Orr, R.D., De Bruijn, J.D., Davies, J.E., (1992) Cells Mater., 2, p. 241
},
	month = {1998///},
	pages = {543 - 548},
	publisher = {Kluwer Academic Publishers},
	abstract = {The influence of surface modification treatments such as ion implantation and sputter coating on an in vitro rat bone-marrow cell culture was studied by scanning electron microscopy and X-ray microanalysis. 316 L stainless steel, Ti-6Al-4V and Ti-5Al-2.5Fe were nitrogen ion-implanted with three fluences: 10                        15, 10
                        16 and 10
                        17 ion cm
},
	keywords = {animal cell, animal tissue, article, biomaterial, Biomaterials, bone marrow culture, Calcium, Carbon, Cell culture, cell suspension, collagen fiber, extracellular matrix, implantation, in vitro study, In vitro testing, Ion implantation, male, materials testing, mineralization, morphology, nitrogen, nonhuman, priority journal, rat, Scanning electron microscopy, Sputtering, Stainless steel, Titanium alloys, Titanium aluminum iron alloy, Titanium aluminum vanadium alloy, X ray analysis, X ray microanalysis},
	isbn = {09574530 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0032170120\&partnerID=40\&md5=c39e91f7fc339fc95c225903e26f0ba5},
	author = {Leit{\~a}o, E. and Barbosa, M.A. and De Groot, K.}
}
@article {2583,
	title = {Objective computerized fetal heart rate analysis},
	journal = {International Journal of Gynecology and ObstetricsInt. J. Gynecol. Obstet.},
	volume = {62},
	year = {1998},
	note = {Cited By (since 1996): 23Export Date: 21 November 2012Source: ScopusCODEN: IJGOAdoi: 10.1016/S0020-7292(98)00079-4PubMed ID: 9749885Language of Original Document: EnglishCorrespondence Address: Bernardes, J.; Departmento Ginecologia Obstetricia, Faculdade Medicina-Hospital S. Joao, Porto, Portugal; email: sisporto@mail.telepac.ptReferences: Bernardes, J., Costa-Pereira, A., Ayres-De-Campos, D., Van Geijn, H.P., Pereira-Leite, L., Evaluation of interobserver agreement of cardiotocograms (1997) Int J Gynecol Obstet, 57 (1), pp. 33-37;Bernardes, J., Costa-Pereira, A., Van Geijn, H.P., Pereira-Leite, L., A more objective fetal heart rate baseline estimation (1996) Br J Obstet Gynaecol, 103, pp. 714-715; 
Grant, A., Principles for clinical evaluation of methods of perinatal monitoring (1984) J Perinat Med, 12, pp. 227-231; 
Bernardes, J., Moura, C., Marques-De-S{\'a}, J.P., Pereira-Leite, L., Van Geijn, H.P., The Porto System (1994) A Critical Appraisal of Fetal Surveillance, pp. 315-324. , In: van Geijn HP, Copray FJA, editors. Amsterdam: Elsevier Science; 
Rooth, G., Huch, A., Huch, R., Guidelines for the use of fetal monitoring. FIGO news (1987) Int J Gynaecol Obstet, 25, pp. 159-167; 
Mohide, P., Grant, A., Evaluating diagnosis and screening during pregnancy and childbirth (1989) Effective Care in Pregnancy and Childbirth, pp. 66-80. , In: Chalmers I, Enkin M, Keirse M JNC, editors. Oxford University Press; 
Garcia-Romero, H., Garcia-Barrios, C., Ramos-Gutierrez, F.R., Effects of uncertain results on sensitivity and specificity of diagnostic tests (1996) Lancet, 348, pp. 1745-1746; 
Grant, J.M., The fetal heart rate is normal, isn{\textquoteright}t it?. Observer agreement of categorical assessments (1991) Lancet, 337, pp. 215-218; 
Guzman, E., Vintzileos, A., Martins, M., Benito, C., Houlihan, C., The efficacy of individual computer heart rate indices in detecting acidemia at birth in growth-restricted fetuses (1996) Obstet Gynecol, 87, pp. 969-974; 
Nielsen, P.V., Stigsby, B., Nickelsen, C., Nim, J., Computer assessment of the intrapartum cardiotocogram. II. The value of compared with visual assessment (1988) Acta Obstet Gynecol Scand, 67, pp. 461-464; 
Chung, T.K.H., Mohajer, M.P., Yang, Z.J., Chang, A.M.Z., Sahota, D.S., The prediction of fetal acidosis at birth by computerized analysis of intrapartum cardiotocography (1995) Br J Obstet Gynaecol, 102, pp. 454-460; 
Stigsby, B., Nielson, P.V., Nickelsen, C., Nim, J., Computer assessment of the intrapartum cardiotocogram. I. Methods of data reduction and diagnostic procedure (1988) Acta Obstet Gynecol Scand, 67, pp. 455-460
},
	month = {1998///},
	pages = {141 - 147},
	abstract = {Objective: To assess the validity of a computerized methodology for cardiotocogram analysis based on a recently described reproducible visual estimation of the baseline. Methods: Forty-two antepartum and 43 intrapartum cardiotocograms (CTGs) acquired by a personal computer were selected. Antepartum tracings were performed in the 48 h that preceded an elective cesarean section, and intrapartum tracings were performed until delivery. FHR baselines were estimated by an expert, according to an objective and reproducible methodology. Using these baselines, automated detection of accelerations and decelerations and estimation of variability was performed by the personal computer. A quantitative adaptation of the FIGO guidelines for fetal monitoring was used to classify tracings. Perinatal outcome was classified according to the Apgar score and umbilical arterial pH. Validity was then assessed by the proportions of agreement (PA), kappa statistic (κ), sensitivity and specificity, with 95\% confidence intervals (95\% CI). Cases showing a disagreement between CTG and perinatal classification were reviewed and an adjustment in baseline definition was tested. Results: The initial overall PA and κ between CTG and perinatal classification were, respectively, 0.79 (95\% CI: 0.69-0.87) and 0.62 (95\% CI: 0.41-0.83). The overall PA and κ, after baseline adjustment were, respectively, 0.89 (95\% CI: 0.81-0.95) and 0.78 (95\% CI: 0.58-0.98). Sensitivities and specificities ranged between 79\% (95\% CI: 60-92\%) and 100\% (95\% CI: 95-100\%). Conclusions: Good clinical prediction may be possible with an objective methodology for cardiotocogram analysis based on a recently described reproducible baseline estimation.},
	keywords = {Apgar score, arterial pH, article, Cardiotocography, cesarean section, computer analysis, Computerized analysis, Female, Fetal heart rate, fetus, fetus heart rate, fetus monitoring, Heart Rate, Fetal, human, Humans, Image Processing, Computer-Assisted, practice guideline, Predictive Value of Tests, Pregnancy, priority journal, umbilical artery, validity},
	isbn = {00207292 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0031873609\&partnerID=40\&md5=2b885fbc95cba06c5f31f417216ebba2},
	author = {Bernardes, J. and Ayres-de-Campos, D. and Costa-Pereira, A. and Pereira-Leite, L. and Garrido, A.}
}
@article {2592,
	title = {Semiautomated ultrasonographic measurement of fetal nuchal translucency using a computer software tool},
	journal = {Ultrasound in Medicine and BiologyUltrasound Med. Biol.},
	volume = {24},
	year = {1998},
	note = {Cited By (since 1996): 9Export Date: 21 November 2012Source: ScopusCODEN: USMBAdoi: 10.1016/S0301-5629(97)00235-4PubMed ID: 9483771Language of Original Document: EnglishCorrespondence Address: Marques De Sa, J.; Instituto de Engenharia Biomedica, Pt. Coronel Pacheco 1, P-4050 Porto, Portugal; email: jmsa@garfield.fe.up.ptTradenames: Microsoft Visual C++, microsoft, United StatesManufacturers: microsoft, United StatesReferences: Jain, A.K., (1982) Fundamentals of Digital Image Processing, , New York: Prentice Hall International Editions;Neilson, J., Grant, A., Ultrasound in pregnancy (1989) A Guide to Effective Care in Pregnancy and Childbirth., pp. 48-56. , Enkin M, Keirse MJN, Chalmers I. eds. New York, London: Oxford University Press; 
Nicolaides, K.H., Azar, G., Byrne, D., Mansur, C., Marks, K., Fetal nuchal translucency: Ultrasound screening for chromosomal detects in first trimester of pregnancy (1992) BMJ, 304, pp. 867-869; 
Pandya, P.P., Brizot, M.L., Kuhn, P., Snijders, R.J.M., Nicolaides, K.H., First trimester fetal nuchal translucency thickness and risk for trisomies (1994) Obstet Gynecol, 84, pp. 420-423; 
Pandya, P.P., Kondylios, A., Hilbert, L., Snijders, R.J.M., Nicolaides, K.H., Chromosomal defects and outcome in 1015 fetuses with increased nuchal translucency (1995) Ultrasound Obstet Gynecol, 5, pp. 15-19; 
Pandya, P.P., Altman, D.G., Brizot, M.L., Pettersen, H., Nicolaides, K.H., Repeatability of measurement of fetal nuchal translucency thickness (1995) Ultrasound Obstet Gynecol, 5, pp. 334-337; 
Roberts, L.J., Bewley, S., Mackinson, A.M., Rodeck, C.H., First trimester fetal nuchal translucency: Problems of screening the general population (1995) Br J Obstet Gynaecol, 102, pp. 381-385; 
Zador, I.E., Salari, V., Sokol, R.J., Computer applications in fetal medicine (1994) The Fetus As A Patient, pp. 117-124. , Kurjak A, Chervenak FA, eds. London/ New York: Parthenon Publ
},
	month = {1998///},
	pages = {51 - 54},
	publisher = {Elsevier Sci Ltd},
	abstract = {Nuchal translucency (NT) thickness measurement has been recently proposed as a part of routine ultrasound scanning during the late first trimester of pregnancy, for the early screening of chromosomal abnormalities. Manual determination of NT is currently performed using electronic callipers placed by the operator in the middle of two echogenic fines displayed on the screen. Therefore, intraobserver and interobserver repeatability can be questioned. This paper presents a software tool that has been developed for achieving this goal in a semiautomatic way, improving the reproducibility of the method.Nuchal translucency (NT) thickness measurement has been recently proposed as a part of routine ultrasound scanning during the late first trimester of pregnancy, for the early screening of chromosomal abnormalities. Manual determination of NT is currently performed using electronic callipers placed by the operator in the middle of two echogenic lines displayed on the screen. Therefore, intraobserver and interobserver repeatability can be questioned. This paper presents a software tool that has been developed for achieving this goal in a semiautomatic way, improving the reproducibility of the method.
},
	keywords = {article, cervical spine, chromosome aberration, Chromosome Aberrations, Chromosome Disorders, Computer aided diagnosis, computer program, Computer software, computer system, Female, Fetal monitoring, Fetal nuchal translucency, fetus echography, first trimester pregnancy, Humans, Image analysis, Image Processing, Computer-Assisted, Image thresholding, Medical imaging, Neck, observer variation, Pregnancy, Pregnancy Trimester, First, priority journal, reproducibility, Reproducibility of Results, Software, Software package NUCA, Thickness measurement, Ultrasonic imaging, Ultrasonography, Prenatal, ultrasound},
	isbn = {03015629 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0031974123\&partnerID=40\&md5=632da5e0661d27d445b101e03057ad56},
	author = {Bernardino, F. and Cardoso, R. and Montenegro, N. and Bernardes, J. and Marques de S{\'a}, J.}
}
@article {2605,
	title = {Apatite deposition on titanium surfaces - The role of albumin adsorption},
	journal = {BiomaterialsBIOMATERIALS},
	volume = {18},
	year = {1997},
	note = {Cited By (since 1996): 72Export Date: 21 November 2012Source: ScopusCODEN: BIMADdoi: 10.1016/S0142-9612(97)00031-8PubMed ID: 9212191Language of Original Document: EnglishCorrespondence Address: Serro, A.P.; Centro de Quimica Estrutural, Complexo I, Instituto Superior Tecnico, Av. Rovisco Pais, 1096 Lisboa Codex, PortugalChemicals/CAS: alpha-tricalcium phosphate; Apatites; calcium phosphate, 10103-46-5; Calcium Phosphates; dicalcium phosphate anhydrous, 7757-93-9; Hanks Balanced Salt Solution; Isotonic Solutions; monocalcium phosphate; Serum Albumin, Bovine; tetracalcium phosphate; Titanium, 7440-32-6References: Sundgren, J.-E., Bodo, P., Lundstrom, I., Auger electron spectroscopic studies of the interface between human tissue and implants of titanium and stainless steel (1986) J. Colloid Interface Sci., 10, pp. 9-20;Hanawa, T., Ota, M., Characterization of surface film formed on titanium in electrolyte using XPS (1992) Appl. Surface Sci., 55, pp. 269-276; 
Sousa, S.R., Barbosa, M.A., Corrosion resistance of titanium cp in saline physiological solutions with calcium phosphate and proteins (1993) Clin. Mater., 14, pp. 287-294; 
Li, P., Ohtsuki, C., Kokubo, T., Nakanishi, K., Soga, N., De Groot, K., The role of hydrated silica, titania and alumina in inducing apatite on implants (1994) J. Biomed. Mater. Res., 28, pp. 7-15; 
Tanahashi, M., Yao, T., Kokubo, T., Apatite coating on organic polymers by a biomimetic process (1994) J. Am. Ceram. Soc., 77, pp. 2805-2808; 
Martin, R.I., Brown, P.W., Formation of hydroxy-apatite in serum (1994) J. Mater. Sci.: Mater. Med., 5, pp. 96-102; 
Malmsten, M., Ellipsometric studies of protein layers adsorbed at hydrophobia surfaces (1994) J. Colloid Interface Sci., 166, pp. 333-342; 
Oscarsson, S., Protein adsorption onto protein-covered silica-gels (1994) J. Colloid Interface Sci., 165, pp. 402-410; 
Baier, R.E., Meyer, J.R., Natella, R.R., Carter, J.M., Surface properties determine bioadhesive outcomes: Methods and results (1984) J. Biomed. Mater. Res., 18, pp. 337-355; 
Andrade, J.D., (1985) Surface and Interfacial Aspects of Biomedical Polymers, 2, pp. 1-80. , ed. J. D. Andrade. Plenum Press, New York; 
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Kipaldi, V.D., Lemons, J.E., Surface energy characterization of unalloyed titanium (1994) J. Biomed. Mater. Res., 28, pp. 1419-1425; 
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Str{\"o}m, G., Carlsson, G., Wettability of kraft pulps -Effect of surface composition and oxygen plasma treatment (1993) Contact Angle, Wettability and Adhesion, pp. 475-491. , ed. K. L. Mittal. VSP, Utrecht; 
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Gomes, C.M., Fernandes, A.C., Almeida, B.S., The surface tension of cork from contact angle measurements (1993) J. Colloid Interface Sci., 156, pp. 195-201; 
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Paynter, R.W., Ratner, B., The study of interfacial proteins and biomolecules by X-ray photoelectron spectroscopy (1985) Surface and Interfacial Aspects of Biomedical Polymers, 2, pp. 189-216. , ed. J. D. Andrade. Plenum Press, New York; 
Raider, S.I., Flitsch, R., Palmer, M.J., Oxide growth on etched silicon in air at room temperature (1975) J. Electrochem. Soc.: Solid State Sci. Technol., 122, pp. 413-418
},
	month = {1997///},
	pages = {963 - 968},
	publisher = {Elsevier Science Ltd},
	abstract = {Titanium implant surfaces are known to spontaneously nucleate apatite layers when in contact with simulated body fluids. However, adsorption of proteins may influence the process of apatite layer formation. In this study the role of bovine serum albumin (BSA) adsorption in the process of apatite deposition on titanium substrates is investigated. Deposition of calcium phosphate was induced by immersing titanium substrates in a Hank{\textquoteright}s balanced salt solution (HBSS) for times ranging from 1 to 23 days. The resulting substrates were studied by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), wettability measurements and electrochemical impedance determinations. All these methods indicate the presence of a calcium phosphate layer. The same procedure was repeated substituting HBSS with a solution of BSA in HBSS. Although SEM, EDS and electrochemical impedance spectra do not reveal the presence of an apatite layer, XPS analysis strongly indicates that the inhibition of apatite formation by BSA is only partial. The competition between BSA adsorption and apatite deposition seems to lead to a mixed film where the protein co-exists with calcium phosphate. Wettability studies suggest that this surface film is heterogeneous and porous, similar to the thicker films formed in albumin-free HBSS.Titanium implant surfaces are known to spontaneously nucleate apatite layers when in contact with simulated body fluids. However, adsorption of proteins may influence the process of apatite layer formation. In this study the role of bovine serum albumin (BSA) adsorption in the process of apatite deposition on titanium substrates is investigated. Deposition of calcium phosphate was induced by immersing titanium substrates in a Hank{\textquoteright}s balanced salt solution (HBSS) for times ranging from 1 to 23 days. The resulting substrates were studied by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), wettability measurements and electrochemical impedance determinations. All these methods indicate the presence of a calcium phosphate layer. The same procedure was repeated substituting HBSS with a solution of BSA in HBSS. Although SEM, EDS and electrochemical impedance spectra do not reveal the presence of an apatite layer, XPS analysis strongly indicates that the inhibition of apatite formation by BSA is only partial. The competition between BSA adsorption and apatite deposition seems to lead to a mixed film where the protein co-exists with calcium phosphate. Wettability studies suggest that this surface film is heterogeneous and porous, similar to the thicker films formed in albumin-free HBSS.
},
	keywords = {Adsorption, Albumin, Albumin adsorption, Animals, Apatite, Apatite deposition, Apatites, article, Binding Sites, Bovinae, bovine serum albumin, Calcium Compounds, calcium phosphate, Calcium phosphates, Cattle, Deposition, Electric Impedance, Electrochemical impedance, Energy dispersive spectroscopy, impedance, implant, Isotonic Solutions, Microscopy, Electron, Scanning, priority journal, Prostheses and Implants, Proteins, Scanning electron microscopy, Serum Albumin, Bovine, Spectrometry, X-Ray Emission, Substrates, Surface Properties, surface property, Surfaces, Tissue Preservation, Titanium, wettability, X ray photoelectron spectroscopy},
	isbn = {01429612 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0031193883\&partnerID=40\&md5=b9eea9b29c987a3c928f576d0b9cdb67},
	author = {Serro, A.P. and Fernandes, A.C. and Saramago, B. and Lima, J. and Barbosa, M.A.}
}
@article {2597,
	title = {Dissolution and deposition processes at metal/apatite interfaces},
	journal = {Anales de Quimica},
	volume = {93},
	year = {1997},
	note = {Export Date: 21 November 2012Source: ScopusLanguage of Original Document: EnglishCorrespondence Address: Barbosa, M.A.; INEB-Instituto de Engenharia Biom{\'e}dica, FEUP Faculdade de Engenharia da, Universidade do Porto Pra{\c c}a do Coronel Pacheco I, 4050 Porto, Portugal; email: barbosa@garfield.fe.up.ptReferences: Silva, R.A., Barbosa, M.A., Costa, A.S., Ribeiro, J.A.C., Esiudo analftico de implantes e pr{\^o}teses ortop{\'e}dicas (1985) Proceedings of Materials 85., p. 5. , Sociedade Portuguesa de Materials;Ma, Q.Y., Tra{\^\i}na, S.J., Logan, T.J., Ryan, J.A., Effects of aqueous Al, Cd. Cu. Fe(II). Ni. and Zn on Pb immobilization by hydroxyapatite (1994) Environ Sei Technol, 28, pp. 1219-1228; 
Oonishi, H., Noda, T., Ito, S., Kohda, A., Ishimaru, H., Yamamoto, M., Tsuji, Y., Effect of hydroxyapatite coating on bone growth into porous titanium alloy implants under loaded conditions (1994) J Appl Biom, 5, pp. 23-37; 
Wilson, J., World biomaterials congresses 1980-1992 (1993) J Appl Biom, 4, pp. 103-105; 
(1996) Toronto, 1. , Fifth World Biomaterials Congress May 29 - June 2, 1996; 
Bioceramics: Processingproperties (1991) Biomaterials Degradation: Fundamental Aspects and Related Clinical Phenomena, , Barbosa MA (ed) Chap 6, NorthHolland; 
Daculsi, G., Hamel, L., Frayret, J.P., Les depots electrophoretiques de phosphate de calcium (1994) Innov Tech Biol Med, 15, pp. 72-77; 
Yoshinary, M., Ohtsuka, Y., D{\'e}rand, T., Thin hydroxyapatite coating produced by the ion beam dynamic mixing method (1994) Biomaterials, 15, pp. 529-535; 
Singh, R.K., Qian, F., Nagabushnam, V., Damodaran, R., Moudgil, B.M.I., Excimer laser deposition of hydroxyapatite thin films (1994) Biomaterials, 15, pp. 522-528; 
Wang, B.C., Eee, T.M., Chang, E., Yang, C.Y., The shear strength and the failure mode of plasma-sprayed hydroxyapatite coating to bone: The effect of coating thickness (1993) J Biomed Mater Res, 27, p. 13151327; 
Klein, C.P.A.T., Patka, P., Wolke, J.G.C., De Blieck-Hogervorst, De Groot, K., Long-term in vivo study of plasma-sprayed coatings on titanium alloys of tetracalcium phosphate, hydroxyapatite and utricalcium phosphate (1994) Biomat, 15, pp. 146-150; 
Ma, B., Rocha, L., Puers, R., Biomaterials in orthopedic implant monitoring (1993) Monitoring of Orthopedic Implants, pp. 222-240. , Burny F. Puers R (eds) North-Holland; 
Weng, J., Liu, X., Zhang, X., Ji, X., Thermal decomposition of hydroxyapatite structure induced by titanium and its oxide (1994) J Mater Sei Letters, 13, pp. 159-161; 
Ducheyne, P., Healy, K., The effect of plasma-sprayed calcium phosphate ceramic coatings on the metal ion release from porous titanium and cobalt-chromium alloys (1988) J Biomed Mater Res, 22, p. 11371163; 
Sousa, S.R., Barbosa, M.A., Effect of hydroxyapatite thickness on metal ion release from T16A14V substrates (1996) Biomaterials, 17, pp. 397-404; 
Sousa, S.R., Barbosa, M.A., Effect of hydroxyapatite thickness on metal ion release from stainless steel substrates (1995) J Mater Sei: Mater in Med, 6, pp. 818-823; 
Ribeiro, C.C., Barbosa, M.A., Machado, A.A.S.C., Modifications in the molecular structure of hydroxyapatite induced by titanium ions (1995) J of Mater Sei: Mater in Med, 6, pp. 829-834; 
Barbosa, M.A., Electrochemical impedance studies on calcium phosphate-metal interfaces (1991) Bioceramics, 4, pp. 325-333. , Bonfield W. Hastings GW. Tanner KE (eds) Butterworth; 
Sousa, S.R., Barbosa, M.A., Electrochemistry of AISI 316L stainless steel in calcium phosphate and protein solutions (1991) J Mater Sei: Mater in Med, 2, pp. 19-26; 
Sousa, S.R., Barbosa, M.A., Corrosion resistance of titanium cp in saline physiological solutions with calcium phosphate and proteins (1993) Clin Mater, 14, pp. 287-294; 
Hazan, R., Brener, R., Oron, U., Bone growth to metal implants is regulated by their surface chemical properties (1993) Biomaterials, 14, p. 570574; 
Ishizawa, H., Ogino, M., Formation and characterization of anodic titanium oxide films containing Ca and P (1995) J Biomed Mater Res, 29, pp. 65-72; 
Ishizawa, H., Fujino, M., Ogino, M., Mechanical and histological investigation of hydrothermally treated and untreated anodic titanium oxide films containing Ca and P (1995) J Biomed Mater Res, 29, pp. 1459-1468; 
Hanawa, T., Ota, M., Calcium phosphate naturally formed on titanium in electrolyte solution (1991) Biomaterials, 12, pp. 767-774; 
Leit{\`a}o, E., Barbosa, M.A., De Groot, K., In vitro calcification of orthopaedic implant materials (1995) J Mater Sei: Mater in Med, 6, pp. 849-852; 
Li, P., Kangasniemi, I., De Groot, K., Kokubo, T., Bonelike hydroxyapatie induction by a gel-derived titania on a titanium substrate (1994) J Am C{\textquoteright}eram Soc, 77, pp. 1307-1312; 
Martin, R., Brown, P.W., Formation of hydroxyapatite in serum (1994) J Mater Sei: Mater in Med, 5, pp. 96-102; 
Tenhuisen, K.S., Brown, P.W., The effects of citric and aceticacids on the formation of calcium-deficient hydroxyapatite at 38 "C (1994) J Mater Sei: Mater in Med, 5, pp. 291-298
},
	month = {1997///},
	pages = {S56 - S63},
	abstract = {The coating of implant surfaces with an apatite layer has become one of the most widely used methods to improve bonding to bone. The metal/apatite interface is, however, a region of chemical and mechanical weaknesses, which led some Authors to cast doubts on the long-term integrity of apatite coated implants. These concerns arc essentially related to coatings obtained by conventional plasma-spraying techniques. Recently, there have been attempts to produce coatings with better properties, particularly by acting at the surface preparation stages and by using alternative methods of deposition. Apatite deposition in a liquid phase is one of the new routes being explored. This paper attempts to focus on the main chemical processes involved in the stability of the metal/apatite interface, in order to establish the basic principles for further technological developments. {\textcopyright} Springer-Verlag Ib{\'e}rica 1997.},
	isbn = {11302283 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-33749286735\&partnerID=40\&md5=7cb4c9ae42f83fcd01fc4d918709d99f},
	author = {Barbosa, M.A.}
}
@article {2611,
	title = {Electrochemical and surface modifications on N                    +-ion implanted Ti-5Al-2.5Fe immersed in HBSS
},
	journal = {Corrosion ScienceCorros. Sci.},
	volume = {39},
	year = {1997},
	note = {Cited By (since 1996): 21Export Date: 21 November 2012Source: ScopusCODEN: CRRSALanguage of Original Document: EnglishCorrespondence Address: Leit{\~a}o, E.; INEB - Inst. de Engenharia Biomedica, Pra{\c c}a do Coronel Pacheco, 1, 4050, Porto, PortugalReferences: Tengvall, P., Lundstr{\"o}m, I., (1992) Clinical Mater., 9, pp. 115-134;Seah, K.H.W., Chen, X., (1993) Corros. Sci., 34 (11), pp. 1841-1851; 
Sutherland, D.S., Forshaw, P.D., Allen, G.C., Brow, I.T., Williams, K.R., (1993) Biomaterials, 14 (12), pp. 893-899; 
Kasemo, B., (1983) J. of Prosthetic Dentistry, 49 (6), pp. 832-837; 
Ducheyne, P., Radin, S., Ishikawa, K., (1992) Bone-bonding Biomaterials, pp. 213-218. , edited by P. Ducheyne, T. Kokubo and C.A. van Blitterswijk, (Reed Heathcare Communications); 
Sundgreen, J.-E., Bod{\"o}, P., Lundstr{\"o}m, I., (1986) J. Colloid Interface Sci., 110, pp. 9-20; 
Hanawa, T., Ota, M., (1991) Biomaterials, 12, pp. 767-774; 
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Leit{\~a}o, E., S{\'a}, C., Silva, R.A., Barbosa, M.A., Ali, H., (1995) Corros. Sci., 37 (11), pp. 1861-1866; 
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Ma{\"u}sli, P.A., Simpson, J.P., Burri, G., Steinemann, S.G., (1988) Advances in Biomater., 8, p. 305. , Implant Mater. In Biofunction, edited by C. de Putter, C.L. de Lange, K. de Groot and A.J.C. Lee; 
Ma{\"u}sli, P.A., Bloch, P.R., Geret, V., Steinemann, S.G., (1986) Biological and Biomechanical Performance of Biomaterials, p. 57. , edited by P. Christel, A. Meunier and A.J.C. Lee; 
Sousa, S.R., Barbosa, M.A., (1993) Clinical Mater., 14, pp. 287-294; 
Orr, R.D., De Bruijn, J.D., Davies, J.E., (1992) Cells and Mater., 2 (3), pp. 241-245; 
Klein, C.A.P.T., Patka, P., Wolke, J.G.C., De Blieck-Hogervorst, J.M.A., De Groot, K., (1994) Biomater., 15, pp. 146-150
},
	month = {1997///},
	pages = {377 - 383},
	abstract = {The electrochemical behaviour of nitrogen ion-implanted Ti-5Al-2.5Fe was studied in HBSS-Hank{\textquoteright}s balanced salt solution, by open-circuit potential vs time and cyclic polarization techniques. Three fluences (10                        15, 10
                        16 and 10
                        17 ions/cm
                        2) were used. All ion-implanted surfaces showed higher corrosion resistance than the non-implanted ones. The corrosion potential of the ion-implanted samples was more noble and their passivation current was lower than the non-implanted ones. X-ray photo-electron spectroscopy showed that the immersion of Ti-5Al-2.5Fe in HBSS produces a Ca- and P-rich surface layer. {\textcopyright} 1997 Elsevier Science Ltd. All rights reserved.
},
	keywords = {A. titanium alloys, B. EIS, B. XPS, C. passive films, Corrosion resistance, Cyclic polarization technique, Hank{\textquoteright}s balanced salt solution (HBSS), Ion implantation, nitrogen, Open circuit potential technique, Passivation, Passive films, Surface treatment, Titanium alloys, X ray photoelectron spectroscopy},
	isbn = {0010938X (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0031079659\&partnerID=40\&md5=25add0bc42e8e86ba9168bc4700a1124},
	author = {Leit{\~a}o, E. and Silva, R.A. and Barbosa, M.A.}
}
@article {2606,
	title = {Electrochemical and surface modifications on N                    +-ion-implanted 316L stainless steel
},
	journal = {Journal of Materials Science: Materials in MedicineJ. MATER. SCI. MATER. MED.},
	volume = {8},
	year = {1997},
	note = {Cited By (since 1996): 32Export Date: 21 November 2012Source: ScopusCODEN: JSMMEdoi: 10.1023/A:1018532900458Language of Original Document: EnglishCorrespondence Address: Leitao, E.; Instituto de Engenharia Biomedica, Praca do Coronel Pacheco 1, 4050 Porto, PortugalReferences: Seah, K.H.W., Chen, X., (1993) Corros. Sci., 34, pp. 1841-1851;Fraker, A.C., Ruff, A.W., Sung, P., Van Orden, A.C., Speck, K.M., (1983) Titanium Alloys in Surgical Implants, pp. 206-219. , ASTM STP 796, edited by H. A. Luckey and F. Kublei Jr; 
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},
	month = {1997///},
	pages = {365 - 368},
	publisher = {Chapman \& Hall Ltd},
	abstract = {The effect of nitrogen-ion implantation on the electrochemical behaviour of 316L stainless steel in a simulated physiological solution (HBSS-Hank{\textquoteright}s Balanced Salt Solution) was studied by open-circuit potential versus time and cyclic polarization techniques, with the aim of characterizing the surfaces and choosing the best nitrogen-ion fluence. Three fluences (10                        15, 10
                        16 and 10
                        17 ions/cm
                        2) were used. The 10
                        16 ions/cm
                        2 N
                        + fluence improves the corrosion resistance of the 316L stainless steel.
The effect of nitrogen-ion implantation on the electrochemical behaviour of 316L stainless steel in a simulated physiological solution (HBSS-Hank{\textquoteright}s Balanced Salt Solution) was studied by open-circuit potential versus time and cyclic polarization techniques, with the aim of characterizing the surfaces and choosing the best nitrogen-ion fluence. Three fluences (10
                        15, 10
                        16 and 10
                        17 ions/cm
                        2) were used. The 10
                        16 ions/cm
                        2 N
                        + fluence improves the corrosion resistance of the 316L stainless steel.
},
	keywords = {article, balanced salt solution, Composition effects, Corrosion, Corrosion resistance, Cyclic polarization technique, Electrochemical corrosion, electrochemistry, implantation, Ion implantation, limb prosthesis, nitrogen, Polarization, priority journal, prosthesis failure, Simulated physiological solutions, Solutions, Stainless steel, Stainless steel 316L, Surface Properties, Surface treatment, time},
	isbn = {09574530 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0031172794\&partnerID=40\&md5=9e1c626433826a9739f6a007e215a88f},
	author = {Leit{\~a}o, E. and Silva, R.A. and Barbosa, M.A.}
}
@article {2610,
	title = {Electrochemical impedance spectroscopy of nitrogen- and carbon-sputter coated 316 L stainless steel},
	journal = {Corrosion ScienceCorros. Sci.},
	volume = {39},
	year = {1997},
	note = {Cited By (since 1996): 9Export Date: 21 November 2012Source: ScopusCODEN: CRRSALanguage of Original Document: EnglishCorrespondence Address: Leit{\~a}o, E.; INEB - Inst. de Engenharia Biomedica, Pra{\c c}a do Coronel Pacheco, 1, 4050, Porto, PortugalReferences: Gristina, A.G., Naylor, P., Myrvik, Q., (1988) Medical Progress Through Technology, 14, pp. 205-224;Gomi, K., Davies, J.E., (1993) J. Biomedical Mater. Res., 27, pp. 429-431; 
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Groessner-Schreiber, B., Tuan, R.S., (1992) J. of Cell Sc., 101, pp. 209-217; 
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Puleo, D.A., Holleran, L.A., Doremus, R.H., Bizios, R., (1991) J. Biomedical Mater. Res., 25, pp. 711-723; 
Vrouwenvelder, W.C.A., Groot, C.G., De Groot, K., (1993) J. Biomedical Mater. Res., 27, pp. 465-475; 
Hazan, R., Oron, U., (1993) J. of Orthopaedic Res., 11, pp. 655-663; 
De Bruijn, J.D., Flach, J.S., De Groot, K., Van Blitterswijk, C.A., Davies, J.E., (1993) Cells and Mater., 3, pp. 2115-2127; 
R{\"o}stlund, T., Thomsen, P., Bjursten, L.M., Ericson, L.E., (1990) J. Biomedical Mater. Res., 24, pp. 847-860; 
Bard, A.J., Faulkner, L.R., (1980) Electrochemical Methods, , John Wiley and Sons; 
Bundy, K.J., Dillard, J., Luedemann, R., (1993) Biomaterials, 14 (7), pp. 529-536; 
Leit{\~a}o, E., S{\'a}, C., Silva, R.A., Barbosa, M.A., Ali, H., (1995) Corros. Sci., 37, pp. 1861-1866; 
Garrido, A., Leit{\~a}o, E., (1992) IMPFRA-electrochemical Impedance Software, , internal publication; 
(1993) Project BRITE/EURAM n{\textdegree}0477 Internal Report; 
Barbosa, M.A., (1991) Bioceramics, 4, pp. 325-333. , Edited by W. Bonfield, G.W. Hastings and K.E. Tanner; 
Sousa, S.R., Barbosa, M.A., (1993) Clinical Materials, 14, pp. 287-294
},
	month = {1997///},
	pages = {333 - 338},
	abstract = {The effect of nitrogen and carbon sputter coatings on the electrochemical behaviour of 316 L stainless steel in a simulated physiological solution (Hank{\textquoteright}s Balanced Salt Solution) was studied by electrochemical impedance spectroscopy with the aim of characterizing the surfaces and choosing the best coating. Coatings with different thicknesses and structures were tested. The results showed that thicker sputter coatings produce surfaces with higher charge transfer resistance and lower interface capacities. This indicates that these materials probably owe their high corrosion resistance to the formation of more protective films. {\textcopyright} 1997 Elsevier Science Ltd. All rights reserved.},
	keywords = {A. Stainless steel, B. EIS, C. passive films, Carbon, Charge transfer, Coatings, Composition effects, Corrosion resistance, electrochemistry, Films, Hank{\textquoteright}s balanced salt solution, nitrogen, Passive films, Protective coatings, sodium chloride, Spectroscopy, Sputter deposition, Stainless steel, Surface phenomena},
	isbn = {0010938X (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0031080418\&partnerID=40\&md5=8768ca67f5fad93ace86c90323473352},
	author = {Leit{\~a}o, E. and Silva, R.A. and Barbosa, M.A.}
}
@article {2596,
	title = {Guided bone regeneration using osteopatite{\textregistered} granules and polytetrafluoroethylene membranes},
	journal = {Journal of Materials Science: Materials in MedicineJ. Mater. Sci. Mater. Med.},
	volume = {8},
	year = {1997},
	note = {Cited By (since 1996): 3Export Date: 21 November 2012Source: ScopusCODEN: JSMMEdoi: 10.1023/A:1018533217238Language of Original Document: EnglishCorrespondence Address: Vasconcelos, M.; Faculty of Dental Medicine, University of Porto, Rua Dr. Roberto Frias, 4200 Porto, PortugalTradenames: OsteopatiteReferences: Cavalheiro, J., Branco, R., Vasconcelos, M., (1991) Proceedings of the 4th International Conference on Bioceramics, p. 205. , edited by W. Bonfield, G. W. Hastings and K. E. Tanner, London, UK Butterworth-Heinemann, Oxford;Cavalheiro, J., Vasconcelos, M., Afonso, A., Peres, F., Branco, R., (1994) Stoma, 30, p. 15; 
Dahlin, C., Lekholm, U., Becker, W., Becker, B., Higuchi, K., Callens, A., Steenberghe, D., (1995) Int. J. Oral Maxillofac. Implants, 3, p. 312; 
Aughtun, M., Doz, P., Yildirim, M., Spiekermann, H., Biesterfeld, S., (1995) Int. J. Oral Maxillofac. Implants, 4, p. 421; 
Simion, M., Scarano, A., Gionso, L., Piattelli, A., (1995) Int. J. Oral Maxillofac. Implants, 3, p. 312; 
Afonso, A., Santos, J.D., Vasconcelos, M., Branco, R., Cavalheiro, J., (1996) J. Mater. Sci: Mater. Med., 7, p. 507; 
Jovanovic, S.A., Schenk, R.K., Orsini, M., Kenney, E.B., (1995) Int. J. Oral Maxillofac. Implants, 1, p. 27; 
Sander, L., Karring, T., (1995) J. Clin. Periodontol., 22, p. 295; 
Grevstad, H.J., Leknes, K.N., (1993) J. Clin. Periodontol., 20, p. 193; 
Piattelli, A., Scarano, A., Russo, P., Matarasso, S., (1996) Biomaterials, 17, p. 791
},
	month = {1997///},
	pages = {815 - 818},
	publisher = {Chapman \& Hall Ltd},
	abstract = {Granules of a modified hydroxyapatite, Osteopatite{\textregistered}, were implanted in the right posterior tibiae of adult rabbits. We studied the extent of bone regeneration in bone holes. In the right tibiae, that were filled with granules of this biomaterial covered with a polytetrafluoroethylene (PTFE) membrane using, as a control, uncovered granules. In the left tibia, an empty hole was covered with PTFE membrane and a second hole was left empty to be used as a control. A histomorphometric study was carried out using light microscopy, four and eight weeks after the surgery. The covered granules presented a higher percentage of bone contact than the uncovered ones, and it was also possible to observe a better bone tissue organization, mainly produced by the immobilization action of the PTFE membrane. Empty bone defects covered with PTFE membranes, two months after implantation, presented large areas of Haversian bone and direct bone contact to the PTFE membrane.Granules of a modified hydroxyapatite, Osteopatite, were implanted in the right posterior tibiae of adult rabbits. We studied the extent of bone regeneration in bone holes. In the right tibiae, that were filled with granules of this biomaterial covered with a polytetrafluoroethylene (PTFE) membrane using, as a control, uncovered granules. In the left tibia, an empty hole was covered with PTFE membrane and a second hole was left empty to be used as a control. A histomorphometric study was carried out using light microscopy, four and eight weeks after the surgery. The covered granules presented a higher percentage of bone contact than the uncovered ones, and it was also possible to observe a better bone tissue organization, mainly produced by the immobilization action of the PTFE membrane. Empty bone defects covered with PTFE membranes, two months after implantation, presented large areas of Haversian bone and direct bone contact to the PTFE membrane.
},
	keywords = {animal experiment, Animalia, biomaterial, Bone, bone defect, Bone Regeneration, conference paper, controlled study, haversian canal, hydroxyapatite, Implants (surgical), microscopy, nonhuman, Optical microscopy, Oryctolagus cuniculus, Phosphate minerals, politef, Polymeric membranes, Polytetrafluoroethylenes, priority journal, rabbit, tibia},
	isbn = {09574530 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0031438784\&partnerID=40\&md5=a60e39e457f8acd1d4a8b3586a52acf1},
	author = {Vasconcelos, M. and Afonso, A. and Branco, R. and Cavalheiro, J.}
}
@article {2603,
	title = {Influence of substrate material and surface finishing on the morphology of the calcium-phosphate coating},
	journal = {Journal of Biomedical Materials ResearchJ. BIOMED. MATER. RES.},
	volume = {36},
	year = {1997},
	note = {Cited By (since 1996): 11Export Date: 21 November 2012Source: ScopusCODEN: JBMRBdoi: 10.1002/(SICI)1097-4636(199707)36:1<85::AID-JBM10>3.0.CO;2-IPubMed ID: 9212392Language of Original Document: EnglishCorrespondence Address: Leitao, E.; INEB, FEUP, Praca do Coronel Pacheco 1, 4050 Porto, PortugalChemicals/CAS: Alloys; alpha-tricalcium phosphate; Aluminum, 7429-90-5; Biocompatible Materials; calcium phosphate, 10103-46-5; Calcium Phosphates; dicalcium phosphate anhydrous, 7757-93-9; Hanks Balanced Salt Solution; Iron, 7439-89-6; Isotonic Solutions; monocalcium phosphate; Stainless Steel, 12597-68-1; tetracalcium phosphate; titanium alloy (TiAl6V4), 12743-70-3; Titanium, 7440-32-6References: Fujishiro, Y., Sato, T., Okuwaki, A., Coating of hydroxyapatite on metal plates using thermal dissociation of calcium-EDTA chelate in phosphate solutions under hydrothermal conditions (1995) Mater. Sci. Mater. Med., 6, pp. 172-176;Shirkhanzadeh, M., Calcium phosphate coatings prepared by electrocrystallization from aqueous electrolytes (1995) J. Mater, Sci. Mater. Med., 6, pp. 90-93; 
De Groot, K., Ceramics of calcium phosphates (1983) Bioceramics of Calcium Phosphates, p. 100. , K. de Groot (ed.), CRC Press, Boca Raton, FL; 
Leit{\~a}o, E., Barbosa, M.A., De Groot, K., In vitro calcification of orthopaedic implant materials (1995) J. Mater. Sci. Mater. Med., 6, pp. 849-852; 
Ducheyne, P., Radin, S., Ishikawa, K., The rate of calcium phosphate precipitation on metal and ceramics, and the relationship to bioactivity (1992) Bone Bonding Biomaterials, pp. 213-218. , P. Ducheyne, T. Kokubo, and C. A. van Blitterswijk (eds.), Reed Heathcare Communications, The Netherlands; 
Li, P., (1993) In Vitro and in Vivo Calcium Phosphate Induction on Gel Oxides, , Ph.D. thesis, Leiden University; 
Kokubo, T., Bioactivity of glasses and glass ceramics (1992) Bone Bonding Biomaterials, pp. 31-46. , P. Ducheyne, T. Kokubo, and C. A. van Blitterswijk (eds.), Reed Healthcare Communications, The Netherlands; 
Kokubo, T., Tanahashi, M., Yao, T., Minoda, M., Miyamoto, T., Nakamura, T., Yamamuro, T., Apatitepolymer composites prepared by biomimetic process: Improvement of adhesion of apatite to polymer by glow-discharge treatment (1993) Bioceramics, 6, pp. 327-332. , P. Ducheyne and D. Christiansen (eds.), Butterworth-Heinemann, Oxford, United Kingdom; 
Hanawa, T., Titanium and its oxide film: A substrate for forming apatite (1991) Proceedings of the Bone Biomaterial Interface Workshop, pp. 49-61. , Toronto, Dec., 1990, J. E. Davies (ed.), University of Toronto Press, Toronto, Canada; 
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Radin, S.R., Ducheyne, P., The effect of calcium phosphate ceramic composition and structure on in vivo behavior. II. Precipitation (1993) J. Biomed. Mater. Res., 27, pp. 35-45
},
	month = {1997///},
	pages = {85 - 90},
	publisher = {John Wiley \& Sons Inc},
	abstract = {The formation of an apatite-like layer was achieved by immersing Ti- 6A1-4V, Ti-A1-2.5Fe, and 316 L stainless-steel substrata in Hank{\textquoteright}s balanced salt solution (HBSS). The layer was characterized by surface analysis techniques, namely, X-ray microanalysis and X-ray diffraction, and the morphology was observed by scanning electron microscopy and atomic force microscopy. The concentrations of Ca and P were monitored as a function of time. The morphology of the precipitate layer seems to be dependent both on the type of metal substrate and its surface finish. Polished Ti-6A1-4V and Ti-A1-2.5Fe surfaces exhibit a plate precipitate morphology, whereas rougher surfaces show scattered crystal-like precipitation. The results suggest that the layer produced by immersion of polished titanium alloys in HBSS is constituted by an amorphous apatite.The formation of an apatite-like layer was achieved by immersing Ti-6Al-4V, Ti-Al-2.5Fe, and 316 L stainless-steel substrata in Hank{\textquoteright}s balanced salt solution (HBSS). The layer was characterized by surface analysis techniques, namely, X-ray microanalysis and X-ray diffraction, and the morphology was observed by scanning electron microscopy and atomic force microscopy. The concentrations of Ca and P were monitored as a function of time. The morphology of the precipitate layer seems to be dependent both on the type of metal substrate and its surface finish. Polished Ti-6Al-4V and Ti-Al-2.5Fe surfaces exhibit a plate precipitate morphology, whereas rougher surfaces show scattered crystal-like precipitation. The results suggest that the layer produced by immersion of polished titanium alloys in HBSS is constituted by an amorphous apatite.
},
	keywords = {Alloys, Aluminum, Aluminum alloys, article, Biocompatibility, Biocompatible Materials, biomaterial, Calcium Compounds, calcium phosphate, Calcium phosphate coatings, Calcium phosphates, Coatings, Finishing, Humans, hydroxyapatite, Implants (surgical), Iron, Isotonic Solutions, materials testing, metal implantation, Microscopy, Electron, Scanning, morphology, Phosphates, Stainless steel, Surface Properties, surface property, Surface testing, Surface treatment, Time Factors, Titanium, Titanium alloys, X ray diffraction, X ray diffraction analysis},
	isbn = {00219304 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0031195147\&partnerID=40\&md5=07a9f4ca9de83fbb3c66a25cfea71228},
	author = {Leit{\~a}o, E. and Barbosa, M.A. and De Groot, K.}
}
@article {2612,
	title = {Investigation of the dissolution of the bioceramic hydroxyapatite in the presence of titanium ions using ToF-SIMS and XPS},
	journal = {BiomaterialsBIOMATERIALS},
	volume = {18},
	year = {1997},
	note = {Cited By (since 1996): 28Export Date: 21 November 2012Source: ScopusCODEN: BIMADdoi: 10.1016/S0142-9612(96)00134-2PubMed ID: 9068892Language of Original Document: EnglishCorrespondence Address: Davies, M.C.; Lab. Biophysics and Surface Analysis, Department Pharmaceutical Sciences, University of Nottingham, Nottingham NG7 2RD, United KingdomChemicals/CAS: Biocompatible Materials; Cations; Ceramics; Durapatite, 1306-06-5; Titanium, 7440-32-6References: Hench, L.L., Wilson, J., Bioceramics (1991) MRS Bull, p. 62. , September;Katz, J.L., Harper, R.A., (1990) Concise Encyclopedia of Medical and Dental Materials, p. 87. , ed. D. F. Williams, Pergamon Press, Oxford; 
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Briggs, D., Hearn, M.J., Interaction of ion beams with polymer, with particular respect to SIMS (1986) Vacuum, 36, p. 1005; 
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Reed, N.M., Vickerman, J.C., (1993) Surface Characterisation of Advanced Polymers, p. 83. , eds L. Sabbatini and P. G. Zambonin, Weinheim, VCH; 
Davies, M.C., Lynn, R.A.P., Paul, A.J., Vickerman, J.C., Heller, J., ToF-SIMS and XPS analysis of the surface chemical structure of some linear poly(ortho esters) (1991) Macromolecules, 24, p. 5508; 
Davies, M.C., Leadley, S.R., Paul, A.J., Vickerman, J.C., Heller, J., Franson, N.M., Probing the surface chemical structure of some novel poly(ortho-esters) prepared with N-methyl and N-phenyl ethanolamine by time-of-flight secondary ion mass spectrometry (ToF-SIMS) (1992) Polymers for Advanced Technologies, 3, pp. 293-301; 
Briggs, D., Ratner, B.D., A semi-quantitative SIMS analysis of the surfaces of random ethyl methacrylate:-Hydroxyethylmethacrylate copolymer films (1988) Polym Comm, 29, p. 6; 
Hearn, M.J., Ratner, B.D., Briggs, D., SIMS and XPS studies of poly(urethane) surfaces. I. Preliminary studies (1988) Macromolecules, 21, p. 2950; 
Briggs, D., Analysis of polymer surfaces by SIMS. VII. Homopolymer and copolymer nylons (1987) Org Mass Spectrom, 22, p. 91
},
	month = {1997///},
	pages = {311 - 316},
	publisher = {Elsevier Science Ltd},
	abstract = {Time-of-flight secondary ion mass spectrometry (ToF-SIMS) and X-ray photoelectron spectroscopy (XPS) analyses have been used to investigate the dissolution of hydroxyapatite in the presence of titanium chloride suggesting the substitution of titanium ions for calcium in the hydroxyapatite structure. The surface analytical data suggest that titanium was incorporated within the solid phase as titanium phosphate. Comparison of relative ion intensities in the ToF-SIMS spectra reveals changes in the composition of the surface chemistry of hydroxyapatite. These relative ion intensities show that the maximum surface uptake of titanium occurred at a solution concentration of 500 ppm titanium chloride for a time of incubation of 30 min. These data correlate with that obtained using XPS highlighting the semi-quantitative information which ToF-SIMS can provide.Time-of-flight secondary ion mass spectrometry (ToF-SIMS) and X-ray photoelectron spectroscopy (XPS) analyses have been used to investigate the dissolution of hydroxyapatite in the presence of titanium chloride suggesting the substitution of titanium ions for calcium in the hydroxyapatite structure. The surface analytical data suggest that titanium was incorporated within the solid phase as titanium phosphate. Comparison of relative ion intensities in the ToF-SIMS spectra reveals changes in the composition of the surface chemistry of hydroxyapatite. These relative ion intensities show that the maximum surface uptake of titanium occurred at a solution concentration of 500 ppm titanium chloride for a time of incubation of 30 min. These data correlate with that obtained using XPS highlighting the semi-quantitative information which ToF-SIMS can provide.
},
	keywords = {article, Bioceramic hydroxyapatite, Biocompatible Materials, biomaterial, Biomaterials, Cations, ceramic prosthesis, ceramics, Composition, Dissolution, Durapatite, hydroxyapatite, information processing, mass spectrometry, Phosphates, priority journal, Radiography, Secondary ion mass spectrometry, Spectrometry, Mass, Secondary Ion, Spectrometry, X-Ray Emission, Spectrophotometry, Substitution reactions, Surface chemistry, surface property, Surface structure, Time of flight secondary ion mass spectrometry, Time-of-flight secondary ion mass spectrometry, Titanium, Titanium chloride, X ray photoelectron spectroscopy, X-ray photoelectron spectroscopy},
	isbn = {01429612 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0031080821\&partnerID=40\&md5=9581c063071547190645f666a211bddb},
	author = {Leadley, S.R. and Davies, M.C. and Ribeiro, C.C. and Barbosa, M.A. and Paul, A.J. and Watts, J.F.}
}
@article {2595,
	title = {Processing and in vitro degradation of starch/EVOH thermoplastic blends},
	journal = {Polymer InternationalPolym. Int.},
	volume = {43},
	year = {1997},
	note = {Cited By (since 1996): 77Export Date: 21 November 2012Source: ScopusLanguage of Original Document: EnglishCorrespondence Address: Reis, R.L.; Dept. of Metallurgical Engineering, University of Porto, FEUP, Rua dos Bragas, 4099 Porto Codex, PortugalReferences: Hayashi, T., (1994) Prog. Polym. Sci., 19, p. 663;Daniels, A.U., Andriano, K.P., Smutz, W.P., Chang, M.K.O., Heller, J., (1994) J. Appl. Biomater., 5, pp. 5l; 
Andriano, K.P., Pohjonen, T., Tormalla, P., (1994) J. Appl. Biomater., 5, p. 133; 
Knowles, J.C., Hastings, G.W., (1992) J. Mater. Sci.: Mater. Med., 3, p. 352; 
Rokkanen, P.U., (1991) Ann. Med., 23, p. 109; 
Reis, R.L., Cunha, A.M., (1995) J. Mater, Sci.: Mater. Med., 6, p. 786; 
Reis, R.L., Cunha, A.M., Allan, P.S., Bevis, M.J., (1996) J. Polym. Advanced Techniques, 1, p. 784; 
Bastioli, C., Bellotti, V., Del Giudice, L., Lombi, R., (1991) PCT Int. Pat. Appl, , WO91/02025; 
Bhattarcharya, M., Vaidya, U.R., Zhang, D., Narayan, R., (1995) J. Appl Polym. Sci., 57, p. 539; 
Bastioli, C., Bellotti, V., Del Guidice, L., Gilli, G., (1993) J. Environ. Polym. Degrad., 1, p. 181; 
Bastioli, C., Bellotti, V., Rallis, A., (1994) Rheol. Acta., 33, p. 307; 
Griffin, G.J.L., (1994) Polym. Degrad. Stabil, 45, p. 241; 
Ogbona, G.L., Kalay, G., Allan, P.S., Bevis, M.J., (1995) J. Appl. Polym. Sci., 58, p. 213; 
Allan, P.S., Bevis, M.J., (1987), Br. Pat., 2170-140-BAllan, P.S., Bevis, M.J., (1987) Plast. Rubb. Process. Applic., 1, p. 3; 
Allan, P.S., Bevis, M.J., (1990) Comp. Manuf., 2, p. 79; 
Reis, R.L., Cunha, A.M., Allan, P.S., Bevis, M.J., (1996) Polymers in Medicine and Surgery, p. 195. , eds J. Courtney et al. Institute of Materials, London; 
Bastioli, C., Bellotti, V., Camia, M., Del Giudice, L., Rallis, A., (1994) Biodegradable Plastics and Polymers, p. 200. , eds Y. Doi and K. Fukuda. Eisevier, Amsterdam
},
	month = {1997///},
	pages = {347 - 352},
	abstract = {This paper describes the processing dependence of the mechanical properties of three blends of starch/ethylene vinyl alcohol (EVOH) with potential uses as biomaterials. These blends exhibit a distinct rheological behaviour and mechanical performance. Using shear controlled orientation in injection moulding (Scorim) it was possible to induce anisotropy into the mouldings and to simultaneously enhance stiffness and ductility. Degradation was studied in simulated physiological solutions (Hank{\textquoteright}s balanced salt solution) with and without added bovine serum. Both the dry weight loss and the changes in mechanical properties were determined for ageing periods up to 80 days. The degradation behaviour proved to be strongly dependent on the formulation of the material studied, and on the addition of proteins. The susceptibility of the starch/EVOH blends to degradation when sterilised with ethylene oxide (EtO) was also studied, and showed that the polymers could stand one EtO sterilisation cycle. However, two consecutive cycles severely degraded the polymer structure and properties.},
	keywords = {Aging of materials, Anisotropy, Biodegradable polymers, Biodegradation, Biomaterials, Degradation, Ductility, Ethylene oxide, Ethylene vinyl alcohol, Hank{\textquoteright}s salt solution, Injection molding, Polyethylenes, Polymer blends, Polyvinyl alcohols, Processing, Proteins, rheology, Shear controlled orientation injection molding (Scorim), Starch, Sterilisation, Stiffness},
	isbn = {09598103 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0031212625\&partnerID=40\&md5=554d54fa82a40d6b0a6dea9b9c12afa2},
	author = {Reis, R.L. and Mendes, S.C. and Cunha, A.M. and Bevis, M.J.}
}
@article {2598,
	title = {Production, bonding strength and electrochemical behaviour of commercially pure Ti/Al                    2O
                    3 brazed joints
},
	journal = {Journal of Materials ScienceJ Mater Sci},
	volume = {32},
	year = {1997},
	note = {Cited By (since 1996): 8Export Date: 21 November 2012Source: ScopusCODEN: JMTSALanguage of Original Document: EnglishCorrespondence Address: Paiva, O.C.; INEB-Inst. de Engenharia Biomedica, Pra{\c c}a do Coronel Pacheco 1, 4050 Porto, PortugalReferences: Paiva, O.C., Barbosa, M.A., (1995) Advances in Materials Science and Implant Orthopaedic Surgery, p. 275. , edited by R. Kossowsky and N. Kossowsky NATO ASI Series, Dordercht, The Netherlands;Hongqi, H., Zhihao, J., Xiaotian, W., (1994) J. Mater. Sci., 29, p. 5041; 
Santella, M.L., (1992) Ceram. Bull., 6, p. 947; 
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Nicholas, M., Mortimer, D., (1985) Mater. Sci. Technol., 1, p. 657; 
Kelkar, G.P., Carim, A.H., (1993) Ceramic Transactions - Structrual Ceramics Joining II, , edited by A. J. Moorhead, R. E. Loehman and S. M. Johnson American Ceramic Society, Ohio, USA; 
Li, J.-G., (1994) Ceram. Int., 20, p. 391; 
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Cassidy, R., Pence, R., Moddeman, W., (1989) Ceram. Eng. Sci. Proc., 10, p. 1582; 
Barbier, F., Peytour, C., Revcolevschi, A., (1990) J. Am. Ceram. Soc., 6, p. 1582; 
Loehman, R.E., Tomsia, A.P., (1992) Acta Metall. Mater., 40, pp. S75; 
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Stern, M., Geary, A.L., (1957) Corrosion, 13, p. 139; 
Barbosa, M.A., (1992) Biomaterials - Hard Tissue Repair and Replacement, p. 257. , edited by D. Muster Elsevier Science, North-Holland; 
Uhlig, H.H., (1967) Corrosion and Corrosion Control, , Wiley, New York; 
Shreir, L.L., (1978) Metal/Environment Reactions, 1. , Newnes-Butterworths, London
},
	month = {1997///},
	pages = {653 - 659},
	abstract = {The brazing of commercially pure titanium to Al                        2O
                        3 has been studied. Two different brazing alloys within the Ag-Cu-Ti system and pure silver were selected as bonding agents. Titanium hydride (TiH
                        2) additions were also tested, with the aim of improving the wetting of the ceramic surface by the melted brazing alloy. The mechanical and electrochemical behaviour of the produced joints was assessed, and related to chemical and morphological features resulting from an analysis by scanning electron microscopy and energy dispersive spectroscopy. It was possible to produce joints presenting high integrity, good strength and high resistance to corrosion. The best results were obtained when using an Ag-26Cu-3Ti brazing alloy. The addition of TiH
                        2 increased the mechanical properties, leading to a maximum bonding strength of 80 {\textpm} 8 MPa, as determined in three-point bending tests. In most of the cases, for a maximum deflection of 5 mm, there was only a partial detachment of the ceramic/metal joints. The lowest values for the corrosion rates (i
                        corr = 1.38 μA cm
},
	keywords = {Agents, Aluminum compounds, Aluminum trioxide, Bond strength (materials), Bonding, Brazed joints, Brazing, Brazing alloys, Corrosion resistance, Energy dispersive spectroscopy, Interfaces (materials), Joints (structural components), Scanning electron microscopy, Silver alloys, Strength of materials, Titanium, Titanium compounds, Titanium hydride},
	isbn = {00222461 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0031075923\&partnerID=40\&md5=e1879111241c72f3096a0a8277f73c50},
	author = {Paiva, O.C. and Barbosa, M.A.}
}
@article {2600,
	title = {Structure development and control of injection-molded hydroxylapatite-reinforced starch/EVOH composites},
	journal = {Advances in Polymer TechnologyAdv Polym Technol},
	volume = {16},
	year = {1997},
	note = {Cited By (since 1996): 53Export Date: 21 November 2012Source: ScopusCODEN: APTYDLanguage of Original Document: EnglishCorrespondence Address: Reis, R.L.; Dept. of Metallurgical Engineering, Faculty of Engineering, University of Porto, Rua dos Bragas, 4099 Porto Codex, PortugalReferences: Hayashi, T., (1994) Prog. Polym. Sci., 19, p. 663;Rokkanen, P.U., (1991) Ann. Med., 23, p. 109; 
Knowles, J.C., Hastings, G.W., (1992) J. Mater. Sci. Mater. Med., 3, p. 352; 
Adriano, K.P., Pohjonen, T., Tormalla, P., (1994) J. Appl. Biomater., 5, p. 133; 
Daniels, A.U., Andriano, K.P., Smutz, W.P., Chang, M.K.O., Heller, J., (1994) J. Appl. Biomater., 5, p. 51; 
Bastioli, C., Bellotti, V., Del Guidice, L., Gilli, G., (1993) J. Environ. Polym. Degrad., 1, p. 181; 
Griffin, G.J.L., (1994) Polym. Degrad. Stabil., 45, p. 241; 
Stepto, R.F.T., Tomka, I., (1987) Chimia, 41, p. 76; 
Bhattarcharya, M., Vaidya, U.R., Zhang, D., Narayan, R., (1995) J. Appl. Polym. Sci., 57, p. 539; 
Reis, R.L., Cunha, A.M., (1995) J. Mater. Sci. Mater. Med., 6, p. 786; 
Reis, R.L., Cunha, A.M., Allan, P.S., Bevis, M.J., (1996) J. Polym. Adv. Technol., 7, p. 784; 
Wang, M., Bonfield, W., Hench, L.L., (1995) Bioceramics 8, p. 383. , J. Wilson and L. L. Hench (Eds). Butterworth-Heinemann, New York; 
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Verheyen, C.C.P.M., Klein, C.P.A.T., De Blieck-Hogervorst, J.M.A., Wolke, J.G.C., Van Blitterswijk, C.A., De Groot, K., (1993) J. Mater. Sci. Mater. Med., 4, p. 58; 
Higashi, S., Yamamuro, T., Nakamura, T., Ikada, Y., Hyon, S.H., Jamshidi, K., (1986) Biomaterials, 7, p. 183; 
Knowles, J.C., Hastings, G.W., (1993) J. Mater. Sci. Mater. Med., 4, p. 102; 
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Allan, P.S., Bevis, M.J., British Patent 2170-140-B (1987)Allan, P.S., Bevis, M.J., (1987) Plast. Rubber Proc. Appl., 7, p. 3; 
Allan, P.S., Bevis, M.J., (1990) Comp. Manuf., 2, p. 79; 
Bastioli, C., Bellotti, V., Rallis, A., (1994) Rheol. Acta, 33, p. 307; 
Reis, R.L., Mendes, S.C., Cunha, A.M., Bevis, M.J., (1997) Polym. Int, 43, p. 347
},
	month = {1997///},
	pages = {263 - 277},
	abstract = {This article reports on the development of novel composites of starch-based polymers reinforced with hydroxylapatite (HA). Two different grades of blends of starch and ethylene vinyl alcohol copolymers were reinforced with up to 30\% (wt) of sintered and nonsintered HA. The initial compounding stage was carried out either in a rotating drum or by twin-screw extrusion (TSE). Compounds were injection molded using both conventional molding and a shear-controlled orientation in injection molding (Scorim) technique. It was possible to obtain composites with very good mechanical properties, approaching those of cortical bone. The best results were achieved for 30\% sintered HA composites processed by TSE and Scorim, due to the in situ formation of HA fibers, and the development of molecular orientation and more compact microstructures in the moldings. This was confirmed by SEM analysis of the fracture surfaces, x-ray diffraction, and Raman spectroscopy. The biodegradability of the composites was also assessed and was found to be faster than that of the matrix. {\textcopyright} 1997 John Wiley \& Sons, Inc.},
	keywords = {Biodegradation, Composition effects, Compounding (chemical), Copolymers, Extrusion molding, hydroxyapatite, Injection molding, Microstructure, Molecular orientation, Phosphate minerals, Polymer blends, Polyvinyl alcohols, Reinforced plastics, Rotating drum extrusion, Starch, Twin screw extrusion},
	isbn = {07306679 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0031382738\&partnerID=40\&md5=1c26b12749883526162bae287a8ef6a9},
	author = {Reis, R.L. and Cunha, A.M. and Allan, P.S. and Bevis, M.J.}
}
@article {2604,
	title = {XPS characterization of surface films formed on surface-modified implant materials after cell culture},
	journal = {Journal of Materials Science: Materials in MedicineJ. MATER. SCI. MATER. MED.},
	volume = {8},
	year = {1997},
	note = {Cited By (since 1996): 7Export Date: 21 November 2012Source: ScopusCODEN: JSMMEdoi: 10.1023/A:1018505621839Language of Original Document: EnglishCorrespondence Address: Leitao, E.; INEB-Instituto Engenharia Biomedica, FEUP-Faculdade de Engenharia, Universidade do Porto, Praca Coronel Pacheco 7, 4050 Porto, PortugalReferences: Schmidt, H., Exner, H.E., R{\"u}ck, D.M., Angert, N., Fink, U., Advances in material science and implant orthopaedic surgery (1995) NATO-ASI Series E: Applied Science, 24, pp. 207-221. , edited by R. Kossowsky and N. Kossowsky;Leit{\~a}o, E., S{\'a}, C., Silva, R.A., Barbosa, M.A., Ali, H., (1995) Corros. Sci., 37, p. 1861; 
Howlett, C.R., Zreiqat, H., O{\textquoteright}Dell, R., Noorman, J., Evans, P., Dalton, B.A., Mcfarland, C., Steele, J.G., (1994) J. Mater. Sci. Mater. Med., 5, p. 715; 
Gomi, K., Davies, J.E., (1993) J. Biomedical Mater. Res., 27, p. 429; 
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Martin, J.Y., Schwartz, Z., Hummert, T.W., Schraub, D.M., Simpson, J., Lankford Jr., J., Dean, D.D., Boyan, B.D., (1995) J. Biomedical Mater. Res., 29, p. 389; 
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De Brujin, J.D., Klein, C.P.A.T., De Groot, K., Van Blitterswijk, C.A., (1993) Cells and Mater., 3, p. 407; 
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Leit{\~a}o, E., Barbosa, M.A., De Groot, K., J. Mater. Sci. Mater. Med., , in press; 
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Wagner, C.D., Bickham, D.M., (1989) NIST-XPS Database, , National Institute of Standards and Technology
},
	month = {1997///},
	pages = {423 - 426},
	publisher = {Chapman \& Hall Ltd},
	abstract = {Nitrogen ion-implanted Ti-6AI-4V, Ti-5AI-2.5Fe and 316 L stainless steel and nitrogen or carbon sputter-coated samples were inoculated with rat bone marrow. The interface between the cell layer and the substrata was studied by X-ray photo-electron spectrometry and observed by scanning electron microscopy (SEM). Ca and P were detected on all materials after in vitro cell culture. Titanium appears to be present mainly in the form of TiO                        2.
Nitrogen ion-implanted Ti-6Al-4V, Ti-5Al-2.5Fe and 316 L stainless steel and nitrogen or carbon sputter-coated samples were inoculated with rat bone marrow. The interface between the cell layer and the substrata was studied by X-ray photo-electron spectrometry and observed by scanning electron microscopy (SEM). Ca and P were detected on all materials after in vitro cell culture. Titanium appears to be present mainly in the form of TiO
                        2.
},
	keywords = {Animal cell culture, Animalia, article, Bone, bone marrow, Calcium, Carbon, Cell culture, implant, Implants (surgical), Interfaces (materials), Ion implantation, nitrogen, phosphorus, priority journal, Scanning electron microscopy, Stainless steel, Surface films, surface property, Surface treatment, Titanium alloys, Titanium dioxide, X ray spectrometry},
	isbn = {09574530 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0031194230\&partnerID=40\&md5=38633ecb076a75d73f9fb1bfc40bc0cf},
	author = {Leit{\~a}o, E. and Barbosa, M.A. and De Groot, K.}
}
@article {2625,
	title = {Effect of hydroxyapatite thickness on metal ion release from Ti6Al4V substrates},
	journal = {BiomaterialsBIOMATERIALS},
	volume = {17},
	year = {1996},
	note = {Cited By (since 1996): 62Export Date: 21 November 2012Source: ScopusCODEN: BIMADdoi: 10.1016/0142-9612(96)89655-4PubMed ID: 8938233Language of Original Document: EnglishCorrespondence Address: Sousa, S.R.; INEB, Praca do Coronel Pacheco 1, 4050 Porto, PortugalChemicals/CAS: Alloys; Biocompatible Materials; Durapatite, 1306-06-5; titanium alloy (TiAl6V4), 12743-70-3; Titanium, 7440-32-6References: Barbosa, M.A., Electrochemical impedance studies on calcium phosphate-metal interfaces (1991) Bioceramics, 4, pp. 325-333. , Bonfield W, Hastings GW, Tanner KE, eds. London: Butterworth-Heinemann;Sousa, S.R., Barbosa, M.A., Electrochemistry of AISI 316L stainless steel in calcium phosphate and protein solutions (1991) J Mater Sci: Mater Med, 2, pp. 19-26; 
Sousa, S.R., Barbosa, M.A., Corrosion resistance of titanium cp in saline physiological solutions with calcium phosphate and proteins (1993) Clin Mater, 14, pp. 287-294; 
Li, P., De Groot, K., Calcium phosphate formation within sol-gel prepared titania in vitro and in vivo (1993) J Biomed Mater Res, 27, pp. 1495-1500; 
Li, P., Kangasniemi, I., De Groot, K., Bonelike hydroxyapatitc induction by a gel-derived titania and a titanium substrate (1994) J Am Ceram Soc, 77, pp. 1307-1312; 
Ducheyne, P., Healy, K.E., The effect of plasma-sprayed calcium phosphate ceramic coatings on the metal ion release from porous titanium and cobalt-chromium alloys (1988) J Biomed Mater Res, 22, pp. 1137-1163; 
Weng, J., Liu, X., Zhang, X., Li, X., Thermal decomposition of hydroxyapatite structure induced by titanium and its dioxide (1994) J Mater Sci Lett, 13, pp. 159-161; 
Castro Ribeiro, C., Barbosa, M.A., Influence of metal ions on the dissolution behaviour of hydroxyapatite (1991) Bioceramics, 4, pp. 145-153. , Bonfield W, Hastings GW, Tanner KE, eds. Butterworth-Heinemann; 
ASTM G61-86, standard test method for: Conducting cyclic potentiodynamic polarization measurements for localized corrosion susceptibility of iron, nickel, or cobalt based alloys (1989) Annual Book of ASTM Standards, pp. 345-361. , 03.02. Philadelphia, PA: American Society for Testing and Materials; 
ASTM G 31-72 e1, standard practice for: Laboratory immersion corrosion testing of metals (1989) Annual Book of ASTM Standards, pp. 176-186. , 03.02. Philadelphia, PA: American Society for Testing and Materials; 
Barbosa, M.A., Surface layers and the reactivity of metallic implants (1992) Biomaterials - Hard Tissue Repair and Replacement, pp. 257-283. , Muster D et al. ed. Amsterdam: Elsevier Science Publishers BV; 
Rivero, D.P., Fox, J., Skipor, A.K., Urban, R.M., Galante, J.O., Calcium phosphate-coated porous titanium implants for enhanced skeletal fixation (1988) J Biomed Mater Res, 22, pp. 191-201; 
Oonishi, H., Yamamoto, M., Ishimaru, H., The effect of hydroxyapatite coating on bone growth into porous titanium alloy implants (1989) J Bone Joint Surg, 71 B, pp. 213-216; 
Bourne, R.B., Rorabeck, C.H., Burkar, B., Kirk, P.G., Ingrowth surfaces - Plasma spray coating to titanium alloy hip replacements (1994) Clin Orthop Rel Res, 298, pp. 37-46; 
Oonishi, H., Noda, T., Ito, S., Effect of hydroxyapatite coatings on bone growth into porous titanium alloy implants under loaded conditions (1994) J Appl Biomater, 5, pp. 23-37; 
Moroni, A., Caja, V.L., Egger, E.L., Trinchese, L., Chao, E.Y.S., Histomorphometry of hydroxyapatite coated and uncoated porous titanium bone implants (1994) Biomaterials, 15, pp. 926-930; 
Bloebaum, R.D., DuPont, J.A., Osteolysis from a press-fit hydroxyapatite-coated implant (1993) J Arthroplasty, 8, pp. 195-202; 
Bloebaum, R.D., Beeks, D., Dorr, L.D., Savory, C.G., DuPont, J.A., Hofmann, A.A., Complications with hydroxyapatite particulate separation in total hip arthroplasty (1994) Clin Orthop, 298, pp. 19-26; 
Klein, C.P.A.T., Patka, P., Wolke, J.G.C., De Blieck-Hogervorst, J.M.A., De Groot, K., Long-term in vivo study of plasma-sprayed coatings on titanium alloys of tetracalcium phosphate, hydroxyapatite and α-tricalcium phosphate (1994) Biomaterials, 15, pp. 146-160; 
Reis, R.L., Monteiro, F.J., Hastings, G.W., Stability of hydroxyapatite plasma-sprayed coated Ti-6Al-4V under cyclic bending in simulated physiological solutions (1994) J Mater Sci: Mater Med, 5, pp. 457-462; 
Wang, B.C., Lee, T.M., Chang, E., Yang, C.Y., The shear strength and the failure mode of plasma-sprayed hydroxyapatite coating to bone: The effect of coating thickness (1993) J Biomed Mater Res, 27, pp. 1315-1327; 
Tranquilli Leali, P., Merolli, A., Palmacci, O., Gabbi, C., Cacchiolo, A., Gonizzi, G., Evaluation of different preparations of plasma-spray hydroxyapatite coating on titanium alloy and duplex stainless steel in the rabbit (1994) J Mater Sci: Mater Med, 5, pp. 345-349
},
	month = {1996///},
	pages = {397 - 404},
	publisher = {Elsevier Science Ltd},
	abstract = {The electrochemical dissolution behaviour of Ti6Al4V alloy coated with hydroxyapatite (HA) by plasma spraying was studied in Hank{\textquoteright}s balanced salt solution (HBSS) and compared with that of polished and grit-blasted passivated surfaces. Two different nominal thicknesses of HA (50 and 200 μm) were used. Taking a polished passivated surface as reference, grit blasting of the substrate increased the electrical charge used in the oxidation of Ti6Al4V alloy at constant potential, as a result of increased surface area. However, only HA coatings with a thickness of 200 μm were capable of reducing the charge to values lower than those measured for polished surfaces. Electrochemical impedance spectroscopy has also shown that only 200 μm thick coatings are effective in reducing the oxidation rate of the substrate. Furthermore, in potentiostatic experiments the 50 μm thick coating detached from the substrate, which did not occur with the 200 μm thick coating. However, after 6 months immersion in HBSS, detachment occurred in some regions of both coatings. No titanium, aluminium or vanadium were detected in solution by electrothermal atomic absorption spectroscopy. These data indicate that HA is an effective barrier to metal ion release, even for the thinner coatings, due to formation of metal phosphates or to incorporation of metal ions in the HA structure.The electrochemical dissolution behaviour of Ti6Al4V alloy coated with hydroxyapatite (HA) by plasma spraying was studied in Hank{\textquoteright}s balanced salt solution (HBSS) and compared with that of polished and grit-blasted passivated surfaces. Two different nominal thicknesses of HA (50 and 200 μm) were used. Taking a polished passivated surface as reference, grit blasting of the substrate increased the electrical charge used in the oxidation of Ti6Al4V alloy at constant potential, as a result of increased surface area. However, only HA coatings with a thickness of 200 μm were capable of reducing the charge to values lower than those measured for polished surfaces. Electrochemical impedance spectroscopy has also shown that only 200 μm thick coatings are effective in reducing the oxidation rate of the substrate. Furthermore, in potentiostatic experiments the 50 μm thick coating detached from the substrate, which did not occur with the 200 μm thick coating. However, after 6 months immersion in HBSS, detachment occurred in some regions of both coatings. No titanium, aluminium or vanadium were detected in solution by electrothermal atomic absorption spectroscopy. These data indicate that HA is an effective barrier to metal ion release, even for the thinner coatings, due to formation of metal phosphates or to incorporation of metal ions in the HA structure.
},
	keywords = {Absorption spectroscopy, Alloys, Aluminum, article, Atomic spectroscopy, balanced salt solution, Bioactive coatings, Biocompatible Materials, Biomaterials, Calcium Compounds, Dissolution, Durapatite, Electric charge, Electrochemical dissolution, Electrochemical impedance spectroscopy, electrochemistry, Electrothermal atomic absorption spectroscopy, Hank balanced salt solution, hydroxyapatite, Ion release, Ions, metal ion, Metal ion release, Metal phosphates, Microscopy, Electron, Scanning, Oxidation, Plasma spraying, potentiometry, priority journal, Spectrophotometry, Atomic, Spectroscopy, Substrates, thickness, Thickness effect, Time Factors, Titanium, Titanium alloys, vanadium},
	isbn = {01429612 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0030087995\&partnerID=40\&md5=ec5e4bddc601b37b0dbe58029dd679d4},
	author = {Sousa, S.R. and Barbosa, M.A.}
}
@article {2627,
	title = {Granules of osteoapatite and glass-reinforced hydroxyapatite implanted in rabbit tibiae},
	journal = {Journal of Materials Science: Materials in MedicineJ. MATER. SCI. MATER. MED.},
	volume = {7},
	year = {1996},
	note = {Cited By (since 1996): 16Export Date: 21 November 2012Source: ScopusCODEN: JSMMELanguage of Original Document: EnglishCorrespondence Address: Afonso, A.; Faculty of Dental Medicine, University of Porto, Rua Dr Roberto Frias, 4200 Porto, PortugalChemicals/CAS: calcium phosphate, 10103-46-5, 13767-12-9, 14358-97-5, 7758-87-4; hydroxyapatite, 1306-06-5, 51198-94-8; magnesium, 7439-95-4; potassium, 7440-09-7; sodium, 7440-23-5References: Ravaglioli, A., Krajewski, A., (1992) Bioceramics-materials, Properties and Applications, p. 100. , Chapman \& Hall, London;Cranin, A.N., Ronen, E., Puntoff, R.S.H., Tobim, G., Dibeling, J.B., (1988) J. Biomed. Mater. Res., 22, p. 1165; 
De Groot, K., Klein, C.P.A.T., (1990) "Handbook of Bioactive Ceramics", Vol. II-Calcium Phosphate and Hydroxylapatite Ceramics, 2, p. 3. , edited by T. Yamamuro CRC Press, Boston; 
Hollinger, J.O., Schmitz, J.P., Mizgala, J.W., Hassler, C., (1989) J. Biomed. Mater. Res., 23, p. 17; 
Cavalheiro, J., Branco, R., Vasconcelos, M., (1991) Proceedings of the 4th International Conference on Bioceramics, p. 205. , edited by W. Bonfield, G. W. Hastings and K. E. Tanner, London, UK Butterworth-Heinemann, Oxford; 
Santos, J.D., Reis, R.L., Knowles, J.C., Monteiro, F.J., Hastings, G.W., (1994) Biomaterials, 15, p. 5; 
Nery, E.B., Legeros, R.Z., Lynch, K.L., Kalbleisch, J., (1988) J. Dent. Res., 67, p. 178; 
Ellinger, R.F., Nery, E.B., Lynch, K.L., (1986) Int. J. Period. Restor. Dent., 3, p. 223; 
Legeros, R.Z., Daculsi, G., (1990) "Handbook of Bioactive Ceramics", Vol. II-Calcium Phosphate and Hydroxylapatite Ceramics, 2, p. 17. , edited by T. Yamamuro CRC Press, Boston
},
	month = {1996///},
	pages = {507 - 510},
	abstract = {Granules of a modified hydroxyapatite, glass-reinforced hydroxyapatite composite and commercial hydroxyapatite were implanted in rabbit tibiae. Histological studies were carried out after 1 and 2 months implantation periods using light and fluorescence microscopy. A much higher percentage of bone contact was developed for both the glass-reinforced hydroxyapatite composite and the modified hydroxyapatite when compared to commercial hydroxyapatite (89-91\% versus 66\%) after 2 months implantation. The mechanism of bone formation and growth around implants is discussed in terms of the influence of elements incorporated into these novel materials which are commonly found in bone tissues, such as Na, K and Mg, and the presence of a soluble β-tricalcium phosphate phase in the microstructure of the composite.},
	keywords = {animal experiment, animal tissue, article, Bone, Bone formation, bone growth, Calcium Compounds, calcium phosphate, Composite materials, Fiber reinforced materials, glass, Glass fibers, Glass reinforced hydroxyapatite, Granular materials, histology, hydroxyapatite, implant, Implants (surgical), Magnesium, Microstructure, Modified hydroxyapatite, nonhuman, Optical microscopy, ossification, Osteoapatite, Oxides, Phosphates, Physiological models, potassium, priority journal, rabbit, Rabbit tibiae, Sodium, tibia, X ray diffraction analysis},
	isbn = {09574530 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0029666749\&partnerID=40\&md5=48a404008151489ff92ea9bc191cf374},
	author = {Afonso, A. and Santos, J.D. and Vasconcelos, M. and Branco, R. and Cavalheiro, J.}
}
@conference {2617,
	title = {Histological evaluation of two bioactive cements},
	booktitle = {Transactions of the Annual Meeting of the Society for Biomaterials in conjunction with the International Biomaterials SymposiumTrans Annu Meet Soc Biomater Int Biomater Symp},
	series = {Proceedings of the 1996 5th World Biomaterials Congress. Part 2 (of 2)},
	volume = {2},
	year = {1996},
	note = {Conference code: 45651Export Date: 21 November 2012Source: ScopusCODEN: TAMSELanguage of Original Document: EnglishCorrespondence Address: Vasconcelos, M.; INEB-Inst Eng. Biomedica, Porto, Portugal},
	month = {1996///},
	pages = {61},
	publisher = {Soc for Biomaterials},
	organization = {Soc for Biomaterials},
	address = {Toronto, Can},
	abstract = {Two bioactive bone cements were compared with poly(methylmethacrylate) (PMMA) cement. Cement A was prepared from precipitated hydroxyapatite and tricalcium phosphate, using an aqueous solution of Na                        2HPO
                        4. Cement B was prepared by crushing a bioactive glass composed of SiO
                        2, CaO, P
                        2O
                        5 and Na
                        2O. The powder was mixed with NH
                        4H
                        2PO
                        4/(NH
                        4)
                        2 PO
                        4 aqueous solution buffered at pH = 7.4. The bioactive cements exhibited different in vivo behaviors but both performed better than PMMA cement.
},
	keywords = {Bioactive bone cements, bone cement, glass, hydroxyapatite, Ion exchange, Lime, pH, Phosphate minerals, Polymethyl methacrylates, Silica, Sodium compounds, Solutions, Sorption, Tricalcium phosphate},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0030421685\&partnerID=40\&md5=14886fa9d05aee6f93ab00abbac772ad},
	author = {Vasconcelos, M. and Afonso, A. and Branco, R. and Planell, J. and Driessens, F. and Cavalheiro, J.},
	editor = {Anon}
}
@article {2628,
	title = {Implant recovery and tissue reaction in growing pigs following implantation of packaging materials for injectable electronic identification and monitoring devices},
	journal = {Preventive Veterinary MedicinePrev. Vet. Med.},
	volume = {25},
	year = {1996},
	note = {Cited By (since 1996): 5Export Date: 21 November 2012Source: ScopusCODEN: PVMEELanguage of Original Document: EnglishCorrespondence Address: Janssens, S.; Lab. for Agric. Buildings Research, K.U. Leuven, K. Mercierlaan 92, B-3001 Heverlee, BelgiumReferences: Agresti, A., (1990) Categorical Data Analysis, , John Wiley, New York, 558 pp;Report from the working group on transponders (1990) CBSG News, 1 (3), p. 13; 
Davis, S.D., Gibbons, D.F., Martin, R.L., Levitt, S.R., Smith, J., Harrington, R.V., Biocompatibility of ceramic implants in soft tissue (1972) J. Biomed. Mater. Res., 6, pp. 425-449; 
Dorn, H.J., Vorstellung des EURO I.D. Systems zur kennzeichnung von tieren mit mikrochips in transpondern (1987) Tierarztl. Umschau, 12, pp. 978-981; 
Fallon, R.J., Rogers, P.A.M., Use and recovery of implantable electronic transponders in beef cattle (1991) Automatic Electronic Identification Systems for Farm Animals, pp. 61-67. , E. Lambooij (Editor), Commission European Community, Luxembourg; 
Konermann, H., Identification of horses by implantation of microchips (1991) Automatic Electronic Identification Systems for Farm Animals, pp. 37-43. , E. Lambooij (Editor), Commission European Community, Luxembourg; 
Lambooij, E., Injectable electronic identification systems: Some veterinary aspects (1991) Automatic Electronic Identification Systems for Farm Animals, pp. 21-27. , E. Lambooij (Editor), Commission European Community, Luxembourg; 
Lambooij, E., Merks, J.W.M., De techniek en plaats van injectie van elektronische levensnummers in varkens (1989) IVO-Rapp., B-335. , IVO-DLO, Zeist, The Netherlands, 12 pp; 
Lambooij, E., De Groot, P.H.S., Molenbeek, R.F., Gruys, E., Subcutaneous tissue reaction to polyethylene terephtalate-covered electronic identification transponders in pigs (1992) Vet. Q., 14 (4), pp. 145-147; 
Interim report following six month checks (1991) Livestock Identification Trial, , MLC, Milton Keynes, UK, 14 pp; 
Petersen, B., Kunneken, J., Norpoth, A., BIPS: An information and preventive system for pig breeding farms (1989) Pigs News Inf., 10 (4), pp. 473-476; 
Rao, G.N., Edmondson, J., Tissue reaction to an implantable identification device in mice (1990) Toxicol. Pathol., 18 (3), pp. 412-416; 
(1989) SAS/STAT User{\textquoteright}s Guide, Version 6, 4th Edn., 1. , SAS Institute Inc., Cary, NC, 943 pp; 
Williams, D.F., The response of the body environment to implants (1973) Implants in Surgery, pp. 203-297. , D.F. Williams (Editor), Saunders, London; 
Williams, D.F., Titanium and titanium alloys (1981) Biocompatibility of Clinical Implant Materials, 1, pp. 188-200. , D.F. Williams (Editor), CRC Press, Boca Raton, FL
},
	month = {1996///},
	pages = {249 - 258},
	abstract = {Different materials were used as cylindrical housings (40 mm {\texttimes} 5 mm) for implantable electronic identification and monitoring tags in livestock. A total of 299 pigs received an implant in the right ear base. Wound healing was complete after 6 weeks in all animals, whereas tissue reaction at the site of the transponder started from the first week with highest levels between 6 and 9 weeks. About 10\% of pigs showed visible swelling of the tissue surrounding the implant. Severeness of tissue reaction ante-mortem influenced the recovery rate of implants. Histological sections obtained from the pigs at slaughter show signs of an inflammatory response in most of the pigs which was associated with the implantation duration/body weight effect. Overall recovery of implants was 90\%. The unfavourable inflammation and recovery results might be attributed to a sub-optimal injection procedure.},
	keywords = {implant, Implant recovery, Pig, tissue reaction},
	isbn = {01675877 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0038873896\&partnerID=40\&md5=5fb7280a2742ab9dfe152ec1045acb44},
	author = {Janssens, S. and Rocha, L.A. and Bosschaerts, L. and Barbosa, M.A. and Puers, R. and Vill{\'e}, H. and Geers, R.}
}
@article {2618,
	title = {Mechanical behavior of injection-molded starch-based polymers},
	journal = {Polymers for Advanced TechnologiesPolym. Adv. Technol.},
	volume = {7},
	year = {1996},
	note = {Cited By (since 1996): 58Export Date: 21 November 2012Source: ScopusLanguage of Original Document: EnglishCorrespondence Address: Reis, R.L.; Dept. of Metallurgical Engineering, FEUP, Rua dos Bragas, 4099 Porto Codex, PortugalReferences: Rokkanen, P.U., (1991) Ann. Med., 23, p. 109;Danniels, A.U., Adriano, K.P., Smutz, W.P., Chang, M.K.O., Heller, J., (1994) J. Appl. Biomater., 5, p. 51; 
Baumgart, F.W., Perren, S.M., (1994) Clinical and Laboratory Performance of Bone Plates, p. 42. , J. P. Harvey and R. F. Games, eds., ASTM STP1217, Philadelphia; 
Knowles, J.C., Hastings, G.W., (1992) J. Mater. Sci.: Mater. Med., 3, p. 352; 
Knowles, J.C., Hastings, G.W., (1993) J. Mater. Sci.: Mater. Med., 4, p. 102; 
Bastioli, C., Bellotti, V., Del Guidice, L., Gilli, G., (1993) J. Environ. Polym. Degr., 1, p. 181; 
Yoshida, Y., Uemura, T., (1994) Biodegradable Plastics and Polymers, p. 443. , Y. Doi and K. Fukuda, eds, Elsevier Science, Tokyo; 
Bastioli, C., Bellotti, V., Camia, M., Del Giudice, L., Rallis, A., (1994) Biodegradable Plastics and Polymers, p. 200. , Y. Doi and K. Fukuda, eds, Elsevier Science, Tokyo; 
Allan, P.S., Bevis, M.J., British Patent 2170-140-BAllan, P.S., Bevis, M.J., (1987) Plast. Rubb. Proc. Appl., 7, p. 3; 
Allan, P.S., Bevis, M.J., (1990) Comp. Manufac., 2, p. 79; 
Reis, R.L., Cunha, A.M., (1995) J. Mater. Sci.: Mater. Med., 6, p. 786; 
Bastioli, C., Belloti, V., Rallis, A., (1994) Rheological Acta, 33, p. 307
},
	month = {1996///},
	pages = {784 - 790},
	abstract = {This work evaluates the mechanical performance of injection-molded starch-based copolymers, 60/40 (mol/ mol) starch/poly(ethylene vinyl alcohol), and the possibility of improving material properties through deliberately induced anisotropy during processing. Different types of samples were produced by conventional and shear-controlled injection molding (Scorim) and tested under tensile and impact loading. The behavior of three distinct grades is discussed in terms of the respective fracture morphology (evaluated by scanning electron microscopy). A comparison is made between the behavior of conventional and Scorim samples. The results show that the mechanical properties of the materials used were significantly improved by the employment of the Scorim process. The stiffness values of the conventional moldings were doubled, without reducing the ductility of the polymer. The impact data showed a material sensitivity, and consequent loss of properties, to the localized shear imposed to the melt during processing. This situation is attributed to very narrow mold gates (in the case of pingated systems) and leads to much reduced impact performance.},
	keywords = {Anisotropy, Biomaterials, Copolymers, differential scanning calorimetry, Ductility, fracture, Impact performance, Impact testing, Injection molding, Mechanical performance, Melting temperature, morphology, Narrow mold gates, performance, Scanning electron microscopy, Scorim, Scorim process, Starch-based polymers, Starched based polymers, Stiffness, Tensile testing},
	isbn = {10427147 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0030257651\&partnerID=40\&md5=6e1c4c7e5c43e8f84ab0e214681cd98b},
	author = {Reis, R.L. and Cunha, A.M. and Allan, P.S. and Bevis, M.J.}
}
@article {2637,
	title = {Computerized fetal heart rate analysis in labour based on 2-s sampling. Can it proceed with confidence? [1]},
	journal = {European Journal of Obstetrics Gynecology and Reproductive BiologyEUR. J. OBSTET. GYNECOL. REPROD. BIOL.},
	volume = {63},
	year = {1995},
	note = {Cited By (since 1996): 2Export Date: 21 November 2012Source: ScopusCODEN: EOGRAdoi: 10.1016/0301-2115(95)02215-SPubMed ID: 8674558Language of Original Document: EnglishCorrespondence Address: Bernardes, J.; Instituto Engenharia Biomedica, Praca Coronel Pacheco 1, 4000 Porto, Portugal},
	month = {1995///},
	pages = {105 - 107},
	keywords = {computer analysis, Computers, Female, Fetal monitoring, fetus, fetus heart rate, Heart Rate, Fetal, human, labor, Labor, Obstetric, letter, measurement, Pregnancy, priority journal, sampling, Time Factors},
	isbn = {03012115 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0028856781\&partnerID=40\&md5=d0c302fff078192103c46bde7d37746f},
	author = {Bernardes, J. and Garrido, A. and Chang, A. and Sahota, D.S. and Reed, N.N. and James, D.K. and Mohajer, M.P.}
}
@article {2630,
	title = {The effect of hydroxyapatite thickness on metal ion release from stainless steel substrates},
	journal = {Journal of Materials Science: Materials in MedicineJ. MATER. SCI. MATER. MED.},
	volume = {6},
	year = {1995},
	note = {Cited By (since 1996): 18Export Date: 21 November 2012Source: ScopusCODEN: JSMMEdoi: 10.1007/BF00134324Language of Original Document: EnglishCorrespondence Address: Sousa, S.R.; INEB, Instituto Engenharia Biomedica, Praca do Coronel Pacheco, 1, 4050 Porto, Portugal},
	month = {1995///},
	pages = {818 - 823},
	publisher = {Chapman \& Hall Ltd},
	abstract = {The corrosion behaviour of 350 stainless steel coated with hydroxyapatite, HA, by plasma spraying was studied in Hank{\textquoteright}s Balanced Salt Solution, HBSS, and compared with that of polished passivated surfaces. Two different nominal thicknesses, 50 μm and 200 μm, corresponding to what one might consider a thin and a thick coating, respectively, were used. Only HA coatings with a thickness of 200 μm were capable of reducing the electrical charge consumed at constant potential to values lower than those measured for polished surfaces. However, no HA detachment occurred for both thicknesses, as opposed to what has been found in a previous work with Ti6A14V alloy coated with 50 μm HA. No iron, chromium or nickel were detected in solution by Atomic Absorption Spectroscopy with electrothermal atomization (ET-AAS). These elements were also absent from the bulk of the HA coating, both after a 6 month immersion period and electrochemical accelerated tests. The data indicate that in spite of the relatively low corrosion resistance of stainless steel as compared to that of titanium alloys, a thin (50 μm) HA coating prevents the release of metal ions, while remaining adherent to the substrate.The corrosion behaviour of 350 stainless steel coated with hydroxyapatite, HA, by plasma spraying was studied in Hank{\textquoteright}s Balanced Salt Solution, HBSS, and compared with that of polished passivated surfaces. Two different nominal thicknesses, 50 μm and 200 μm, corresponding to what one might consider a thin and a thick coating, respectively, were used. Only HA coatings with a thickness of 200 μm were capable of reducing the electrical charge consumed at constant potential to values lower than those measured for polished surfaces. However, no HA detachment occurred for both thicknesses, as opposed to what has been found in a previous work [1] with Ti6Al4V alloy coated with 50 μm HA. No iron, chromium or nickel were detected in solution by Atomic Absorption Spectroscopy with electrothermal atomization (ET-AAS). These elements were also absent from the bulk of the HA coating, both after a 6 month immersion period and electrochemical accelerated tests. The data indicate that in spite of the relatively low corrosion resistance of stainless steel as compared to that of titanium alloys, a thin (50 μm) HA coating prevents the release of metal ions, while remaining adherent to the substrate.
},
	keywords = {Absorption spectroscopy, atomic absorption spectrometry, Atomic absorption spectroscopy, Atomic spectroscopy, balanced salt solution, Calcium Compounds, Chromium, comparative study, conference paper, Corrosion, Corrosion behaviour, Electric charge, electrochemistry, Hank balanced salt solution, hydroxyapatite, immersion, Inorganic coatings, Ions, Iron, metal ion, Metal ion release, Nickel, Plasma spraying, priority journal, Stainless steel, Stainless steel substrates, Substrates, thickness, Thickness effect, Titanium, Titanium alloys},
	isbn = {09574530 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0029616612\&partnerID=40\&md5=d2be2280e7407eb6232225ae459f896f},
	author = {Sousa, S.R. and Barbosa, M.A.}
}
@article {2632,
	title = {Electrochemical and surface modifications on N                    +-ion implanted Ti-6A1-4V immersed in HBSS
},
	journal = {Corrosion ScienceCorros. Sci.},
	volume = {37},
	year = {1995},
	note = {Cited By (since 1996): 37Export Date: 21 November 2012Source: ScopusCODEN: CRRSALanguage of Original Document: EnglishCorrespondence Address: Leit{\~a}o, E.; INEB-Instituto de Engenharia Biom{\'e}dica, Praca do Coronel Pacheco, 1, 4050 Porto, Portugal},
	month = {1995///},
	pages = {1861 - 1866},
	abstract = {The effect of nitrogen-ion implantation on the electrochemical behaviour of Ti-6Al-4V in a simulated physiological solution (HBSS-Hank{\textquoteright}s balanced salt solution) was studied by open-circuit potential versus time and cyclic polarization techniques, with the aim of characterizing better the surface prior to biological testing and to choose the most appropriate nitrogen-ion fluence. Three fluences (10                        15, 10
                        16 and 10
                        17 ions/cm
                        2) were used. The 10
                        16 ions/cm
                        2 N
                        + fluence produced the lowest corrosion rate under passive conditions. The highest fluence originated a large increase in the corrosion rate and inhibited the formation of a calcium- and phosphate-rich layer on the electrode surface. {\textcopyright} 1995.
},
	keywords = {Biological testing, Characterization, Corrosion, Corrosion rate, Cyclic polarization technique, Electrochemical behaviour, electrochemistry, Hank balanced salt solution, Ion implantation, materials testing, Nitrogen ion implanted titanium aluminum vanadium alloy, Nitrogen-ion fluence, Open circuit potential, Passivation, Polarization, Simulated physiological solution, Solutions, Surface modification, Surface treatment, Titanium alloys},
	isbn = {0010938X (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0029403524\&partnerID=40\&md5=4726589b20b429b97686cee3106fed88},
	author = {Leit{\~a}o, E. and Sa, C. and Silva, R.A. and Barbosa, M.A. and Ali, H.}
}
@article {2631,
	title = {In vitro calcification of orthopaedic implant materials},
	journal = {Journal of Materials Science: Materials in MedicineJ. MATER. SCI. MATER. MED.},
	volume = {6},
	year = {1995},
	note = {Cited By (since 1996): 23Export Date: 21 November 2012Source: ScopusCODEN: JSMMEdoi: 10.1007/BF00134330Language of Original Document: EnglishCorrespondence Address: Leitao, E.; Instituto de Engenharia Biomedica, Faculdade de Engenharia, Universidade do Porto, Praca Coronel Pacheco 1, 4050 Porto, Portugal},
	month = {1995///},
	pages = {849 - 852},
	publisher = {Chapman \& Hall Ltd},
	abstract = {The formation of an apatite-like layer is achieved by immersing Ti6A14V and TiA12.5Fe substrata in Hank{\textquoteright}s Balanced Salt Solution (HBSS). The layer was characterized by several techniques, namely X-ray microanalysis, X-ray diffraction and X-ray photoelectron spectroscopy. The results suggest that the layer produced by immersion in HBSS is in the form of an amorphous apatite. The pH and the concentrations of calcium and phosphate were monitored as a function of time. In vitro tests with rat bone marrow were performed in order to mimic the bone/biomaterial interface. They were performed on both immersed and non-immersed samples. The in vitro bone marrow results suggest that the apatite-like layer formed may improve the bone bonding characteristics of the studied titanium alloys.The formation of an apatite-like layer is achieved by immersing Ti6Al4V and TiAl2.5Fe substrata in Hank{\textquoteright}s Balanced Salt Solution (HBSS). The layer was characterized by several techniques, namely X-ray microanalysis, X-ray diffraction and X-ray photoelectron spectroscopy. The results suggest that the layer produced by immersion in HBSS is in the form of an amorphous apatite. The pH and the concentrations of calcium and phosphate were monitored as a function of time. In vitro tests with rat bone marrow were performed in order to mimic the bone/biomaterial interface. They were performed on both immersed and non-immersed samples. The in vitro bone marrow results suggest that the apatite-like layer formed may improve the bone bonding characteristics of the studied titanium alloys.
},
	keywords = {Amorphous apatite, Amorphous materials, animal cell, Apatite, balanced salt solution, Bone, bone marrow, Calcification, Calcification (biochemistry), Calcium, calcium phosphate, conference paper, Hank balanced salt solution, immersion, implantation, Implants (surgical), metal implantation, Microanalysis, nonhuman, orthopedics, pH, phosphate, Phosphates, priority journal, rat, Spectroscopy, surface property, time, Titanium, Titanium alloys, X ray analysis, X ray diffraction, X ray photoelectron spectroscopy},
	isbn = {09574530 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0029558709\&partnerID=40\&md5=8ba348deca0317db2d0a3521d82f02e0},
	author = {Leitao, E. and Barbosa, M.A. and De Groot, K.}
}
@article {2629,
	title = {Modifications in the molecular structure of hydroxyapatite induced by titanium ions},
	journal = {Journal of Materials Science: Materials in MedicineJ. MATER. SCI. MATER. MED.},
	volume = {6},
	year = {1995},
	note = {Cited By (since 1996): 22Export Date: 21 November 2012Source: ScopusCODEN: JSMMEdoi: 10.1007/BF00134326Language of Original Document: EnglishCorrespondence Address: Ribeiro, C.C.; Instituto de Engenharia Biomedica, Praca do Coronel Pacheco, 1, 4050 Porto, Portugal},
	month = {1995///},
	pages = {829 - 834},
	publisher = {Chapman \& Hall Ltd},
	abstract = {The purpose of this study was to contribute to the understanding of the effect of titanium ions released from a metallic substrate on the molecular structure of hydroxyapatite. The effects of pH, time of incubation and concentration of titanium ions were investigated. The solids were analysed by X-ray diffraction, Fourier transform infrared spectroscopy, Fourier transform Raman spectroscopy, energy dispersive X-ray analysis and thermogravimetric analysis. The results clearly indicate the presence of a titanium phosphate, Ti(HPO                        4)
                        2{\textperiodcentered}nH
                        2O (n = 1-3), which probably has a double layered structure. The formation of this compound is dependent on the titanium concentration and its crystallinity increases with the time of incubation.
The purpose of this study was to contribute to the understanding of the effect of titanium ions released from a metallic substrate on the molecular structure of hydroxyapatite. The effects of pH, time of incubation and concentration of titanium ions were investigated. The solids were analysed by X-ray diffraction, Fourier transform infrared spectroscopy, Fourier transform Raman spectroscopy, energy dispersive X-ray analysis and thermogravimetric analysis. The results clearly indicate the presence of a titanium phosphate, Ti(HPO
                        4)
                        2{\textperiodcentered}nH
                        2O (n = 1-3), which probably has a double layered structure. The formation of this compound is dependent on the titanium concentration and its crystallinity increases with the time of incubation.
},
	keywords = {Calcium Compounds, Chemical structure, Coatings, conference paper, Crystallinity, Crystallization, Dissolution, Energy dispersive x ray analysis, Fourier transform infrared spectroscopy, Fourier transform Raman spectroscopy, hydroxyapatite, Implants (surgical), incubation time, infrared spectroscopy, Ions, metal ion, Molecular Structure, pH, pH effects, phosphate, Phosphates, priority journal, Raman spectrometry, Raman spectroscopy, Thermogravimetric analysis, thermogravimetry, time, Titanium, Titanium compounds, X ray analysis, X ray diffraction},
	isbn = {09574530 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0029583899\&partnerID=40\&md5=724de7ed1c6fddd7a7e258cd19ba3710},
	author = {Ribeiro, C.C. and Barbosa, M.A. and Machado, A.A.S.C. and Tudor, A. and Davies, M.C.}
}
@article {2633,
	title = {Plasma surface treatment and PACVD on Ti alloys for surgical implants},
	journal = {Surface and Coatings TechnologySurf. Coat. Technol.},
	volume = {74-75},
	year = {1995},
	note = {Cited By (since 1996): 49Export Date: 21 November 2012Source: Scopusdoi: 10.1016/0257-8972(95)08316-2Language of Original Document: EnglishCorrespondence Address: Rie, K.-T.; Institut f{\"u}r Oberfl{\"a}chentechnik und plasmatechnische Werkstoffentwicklung, Technische Universit{\"a}t Braunschweig, Bienroder Weg 53, D-38108 Braunschweig, Germany},
	month = {1995///},
	pages = {973 - 980},
	abstract = {To improve the poor surface hardness and wear resistance of titanium alloys used for surgical implants undergoing wear TiA16V4 and TiA15Fe2.5 have been plasma nitrided. TiN and other sublayers are formed by plasma nitriding. To increase the thickness of the outermost TiN layer the samples have been coated with TiN by PACVD following plasma nitriding. The produced layers have been characterized in terms of microstructure, layer composition, hardness depth profiles. The evaluation of corrosion resistance and biocompatibility revealed that the good properties of the untreated alloys have been well preserved. {\textcopyright} 1995 Elsevier Science S.A.},
	keywords = {Biocompatibility, Biomaterials, Characterization, Chemical vapor deposition, Corrosion resistance, hardness, Implants (surgical), Microstructure, Nitriding, PACVD, Plasma applications, Plasma assisted chemical vapor deposition, Plasma nitriding, Plasma surface treatment, Surface hardness, Surface treatment, Surfaces, Ti alloys, Titanium alloys, Wear resistance},
	isbn = {02578972 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0029389521\&partnerID=40\&md5=289d2d683bcdc5c62d1ecdf56b33079a},
	author = {Rie, K.-T. and Stucky, T. and Silva, R.A. and Leitao, E. and Bordji, K. and Jouzeau, J.-Y. and Mainard, D.}
}
@article {2640,
	title = {In vitro immuno-cytotoxicity of iron evaluated by DNA synthesis of human T lymphocytes stimulated via CD2 and CD3},
	journal = {Journal of Materials Science: Materials in MedicineJ. MATER. SCI. MATER. MED.},
	volume = {4},
	year = {1993},
	note = {Cited By (since 1996): 4Export Date: 21 November 2012Source: ScopusCODEN: JSMMEdoi: 10.1007/BF00122194Language of Original Document: EnglishCorrespondence Address: Carvalho, G.S.; Natl Inst for Biomedical Engn (INEB), Praca Coronel Pacheco, Porto, Portugal},
	month = {1993///},
	pages = {366 - 371},
	abstract = {In previous studies it was demonstrated that the in vitro exposure of human lymphocytes to iron, nickel or cobalt salts causes a significant reduction of lymphocytes expressing CD2 and CD3 surface antigens. Since both molecules are involved in T lymphocyte activation, these studies suggest that the above metals might affect T-cell activation and proliferation. Thus a method was developed for the stimulation of lymphocytes in which both CD2 and CD3 molecules were triggered simultaneously. For this purpose an anti-CD3 monoclonal antibody (mAb) was chemically bound to human erythrocytes (HE), forming HEαCD3 conjugates, which were used for lymphocyte stimulation. In this work the effects of iron on lymphocyte proliferation was studied, following stimulation.},
	keywords = {article, Biochemistry, Biomedical engineering, cd2 antigen, cd3 antigen, cd8 antigen, Cell culture, cell stimulation, concentration response, DNA, DNA synthesis, erythrocyte, human, human cell, Human lymphocytes, Immuno-cytotoxicity, immunocytotoxicity, Iron, lymphocyte proliferation, monoclonal antibody, monocyte, Synthesis (chemical), t lymphocyte, toxicity},
	isbn = {09574530 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0027638758\&partnerID=40\&md5=47e86a833a7a00945e7c801f2a188a8a},
	author = {Carvalho, G.S. and Bravo, I.}
}
@article {2641,
	title = {Stimulation of human T lymphocytes via CD2 and CD3 molecules: establishment of the method and characterisation of proliferating cells.},
	journal = {CytobiosCytobios},
	volume = {73},
	year = {1993},
	note = {Export Date: 21 November 2012Source: ScopusPubMed ID: 8099003Language of Original Document: EnglishCorrespondence Address: Bravo, I.Chemicals/CAS: Antigens, CD2; Antigens, CD3; Antigens, Differentiation, T-Lymphocyte; Receptors, Immunologic},
	month = {1993///},
	pages = {173 - 181},
	abstract = {The in vitro exposure of human lymphocytes to degradation products (Fe, Ni or Co) of metallic biomaterials causes a significant reduction of lymphocytes expressing the molecules involved in T lymphocyte activation, CD2 and CD3. A method is described which was developed for the stimulation of lymphocytes in which both CD2 and CD3 molecules were triggered simultaneously. For this purpose an anti-CD3 monoclonal antibody (mAb) was chemically bound to sheep (SE) or human (HE) erythrocytes, forming SE alpha CD3 or HE alpha CD3 conjugates, respectively, which were used for lymphocyte stimulation. Stimulation via CD2 and CD3 was compared with classical phytohaemagglutinin stimulation as well as with soluble alpha CD3 mAb stimulation. Phenotypical characterisation of DNA synthesising lymphocytes was assessed by autoradiography of 3H-thymidine pulsed cultures combined with immunocytochemical tests. Results indicate that this method of T lymphocyte stimulation via CD2 and CD3 is reliable and consistent, and it seems to be very convenient for the evaluation of immunocytotoxicity of metal ions derived from metallic biomaterials.},
	keywords = {Antigens, CD2, Antigens, CD3, Antigens, Differentiation, T Lymphocyte, Antigens, Differentiation, T-Lymphocyte, article, cd2 antigen, cd3 antigen, Cell culture, Cell Division, Cells, Cultured, cytology, human, immunoglobulin receptor, immunology, lymphocyte activation, metabolism, Receptors, Immunologic, t lymphocyte, T lymphocyte antigen, T-Lymphocytes},
	isbn = {00114529 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0027346639\&partnerID=40\&md5=212986259daa87af222691840d3129ab},
	author = {Bravo, I. and Carvalho, G.S.}
}
