



@article {3299,
	title = {Actively targeted cetuximab conjugated γ-poly(glutamic acid)-docetaxel nanomedicines for epidermal growth factor receptor over expressing colon cancer cells},
	journal = {Journal of Biomedical Nanotechnology},
	volume = {10},
	year = {2014},
	note = {Cited By (since 1996):1Export Date: 21 November 2014},
	month = {2014},
	pages = {1416 - 1428},
	abstract = {Receptor targeted therapy is advantageous in overcoming the toxicity burden of conventional cancer chemotherapeutics. Over expression of epidermal growth factor receptor (EGFR) on cancer cells and its role in metastasis, malignancy and drug resistance in many human cancers lead to its selection as a promising target for cancer treatment. The present work investigated the preparation and characterization of docetaxel (DTXL) loaded γ-poly (glutamic acid) (γ-PGA) nanoparticles (Nps) conjugated with EGFR antibody (Cetuximab, CET) targeted to colon cancer cells (HT-29), highly over expressing EGFR. The flow cytometric analysis revealed two fold increased cellular uptake of CET-DTXL-γ-PGA Nps by HT-29 (EGFR +ve) cells compared to that of IEC-6 (EGFR-ve) cells confirming the active targeting. Cytotoxicity assays (MTT and LDH) showed superior anti-proliferative activity of CET-DTXL-γ-PGA NPs over DTXL-γ-PGA Nps against HT-29 cells. The cell cycle analysis indicated that CET-DTXL-γ-PGA NPs induced cell death in enhanced percentage of HT-29 cells by undergoing cell cycle arrest in G2/M phase compared to that of DTXL-γ-PGA Nps. The mechanism of cancer cell death was analyzed via apoptotic and mitochondrial membrane potential assays and showed that targeted Nps treatment reduced the mitochondrial membrane potential thereby inducing enhanced HT-29 cell death (apoptosis and necrosis). The biodistribution of targeted and non-targeted Nps were analyzed in vivo in Swiss albino mice using NIR imaging. ICG-CET-DTXL-γ-PGA Nps (targeted) and ICG-DTXL-γ-PGA Nps (non-targeted) followed the similar biodistribution pattern in vivo, but with different elimination time. In short, CET-DTXL-γ-PGA nanoparticles enhance the tumor selective therapeutic efficacy for colon cancer. Copyright {\textcopyright} 2014 American Scientific Publishers All rights reserved.},
	keywords = {Cetuximab, colon cancer, Docetaxel, Epidermal growth factor receptor, Poly(γ-glutamic acid) nanoparticles, Targeted nanomedicines},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84899683740\&partnerID=40\&md5=39d65057952b3e192590262631867971},
	author = {Maya, S. and Sarmento, B. and Lakshmanan, V.-K. and Menon, D. and Jayakumar, R.}
}
@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 {3300,
	title = {Chitosan cross-linked docetaxel loaded EGF receptor targeted nanoparticles for lung cancer cells},
	journal = {International Journal of Biological Macromolecules},
	volume = {69},
	year = {2014},
	note = {Cited By (since 1996):1Export Date: 21 November 2014},
	month = {2014},
	pages = {532 - 541},
	abstract = {Lung cancer, associated with the up-regulated epidermal growth factor receptor (EGFR) led to the development of EGFR targeted anticancer therapeutics. The biopolymeric nanoparticles form an outstanding system for the targeted delivery of therapeutic agents. The present work evaluated the in vitro effects of chitosan cross-linked γ-poly(glutamic acid) (γ-PGA) nanoparticles (Nps) loaded with docetaxel (DTXL) and decorated with Cetuximab (CET), targeted to EGFR over-expressing non-small-cell-lung-cancer (NSCLC) cells (A549). CET-DTXL-γ-PGA Nps was prepared by ionic gelation and CET conjugation via EDC/NHS chemistry. EGFR specificity of targeted Nps was confirmed by the higher uptake rates of EGFR +ve A549 cells compared to that of EGFR -ve cells (NIH3T3). The cytotoxicity of Nps quantified using cell based (MTT/LDH) and flowcytometry (Cell-cycle analysis, Annexin V/PI and JC-1) assays showed superior antiproliferative activity of CET-DTXL-γ-PGA Nps over DTXL-γ-PGA Nps. The A549 cells treated with CET-DTXL-γ-PGA NPs underwent a G2/M phase cell cycle arrest followed by reduction in mitochondrial membrane potential of A549 cells, inducing apoptosis and necrosis resulting in enhanced cancer cell death. CET-DTXL-γ-PGA Nps exhibited enhanced cellular internalization and therapeutic activity, by actively targeting EGFR on NSCLC cells and hence could be an effective alternative to non-specific, conventional chemotherapy by increasing its efficiency by many folds. {\textcopyright} 2014 Elsevier B.V.},
	keywords = {Cetuximab, chitosan, Epidermal growth factor receptor, Poly(γ-glutamic acid) nanoparticles, Targeted nanoparticles},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84903523289\&partnerID=40\&md5=728cbd3502e7922319f5f88fa8d6ec6d},
	author = {Maya, S. and Sarmento, B. and Lakshmanan, V.-K. and Menon, D. and Seabra, V. and Jayakumar, R.}
}
@article {3161,
	title = {Dissecting the signaling pathways associated with the oncogenic activity of MLK3 P252H mutation},
	journal = {Bmc Cancer},
	volume = {14},
	year = {2014},
	note = {Times Cited: 0},
	month = {2014},
	isbn = {1471-2407},
	url = {<Go to ISI>://WOS:000333421700002},
	author = {Velho, Sergia and Pinto, Ana and Licastro, Danilo and Oliveira, Maria Jose and Sousa, Filipa and Stupka, Elia and Seruca, Raquel}
}
@article {3278,
	title = {Dysregulation of T cell receptor N-glycosylation: A molecular mechanism involved in ulcerative colitis},
	journal = {Human Molecular Genetics},
	volume = {23},
	year = {2014},
	note = {Export Date: 21 November 2014},
	month = {2014},
	pages = {2416 - 2427},
	abstract = {The incidence of inflammatory bowel disease is increasing worldwide and the underlying molecular mechanisms are far from being fully elucidated. Herein, we evaluated the role of N-glycosylation dysregulation in T cells as a key mechanism in the ulcerative colitis (UC) pathogenesis. The evaluation of the branched N-glycosylation levelsandprofile of intestinalTcell receptor (TCR)wereassessedin colonic biopsies fromUCpatientsand healthy controls. Expression alterations of the glycosyltransferase gene MGAT5 were also evaluated. We demonstrated thatUCpatients exhibit a dysregulation ofTCRbranchedN-glycosylationonlamina propriaTlymphocytes. Patients with severe UC showed the most pronounced defect on N-glycan branching in T cells. Moreover, UC patients showed a significant reduction of MGAT5 gene transcription in T lymphocytes. In this study, we disclose for the first time that a deficiency in branched N-glycosylation on TCR due to a reduced MGAT5 gene expression is a new molecular mechanism underlying UC pathogenesis, being a potential novel biomarker with promising clinical and therapeutic applications. {\textcopyright} The Author 2013. Published by Oxford University Press. All rights reserved.},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84897565140\&partnerID=40\&md5=4ee6b5b3f85e16eba322ceb8e0d69dd3},
	author = {Dias, A.M. and Dourado, J. and Lago, P. and Cabral, J. and Marcos-Pinto, R. and Salgueiro, P. and Almeida, C.R. and Carvalho, S. and Fonseca, S. and Lima, M. and Vilanova, M. and Dinis-Ribeiro, M. and Reis, C.A. and Pinho, S.S.}
}
@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 {3406,
	title = {Endoplasmic Reticulum Degradation-Enhancing alpha-Mannosidase-like Protein 1 Targets Misfolded HLA-B27 Dimers for Endoplasmic Reticulum-Associated Degradation},
	journal = {Arthritis \& Rheumatology},
	volume = {66},
	year = {2014},
	month = {2014},
	pages = {2976-2988},
	url = {<Go to ISI>://WOS:000344349500008},
	author = {Guiliano, David B. and Fussell, Helen and Lenart, Izabela and Tsao, Edward and Nesbeth, Darren and Fletcher, Adam J. and Campbell, Elaine C. and Yousaf, Nasim and Williams, Sarah and Santos, Susana and Cameron, Amy and Towers, Greg J. and Kellam, Paul and Hebert, Daniel N. and Gould, Keith G. and Powis, Simon J. and Antoniou, Antony N.}
}
@article {3294,
	title = {Eradication of Helicobacter pylori: Past, present and future},
	journal = {Journal of Controlled Release},
	volume = {189},
	year = {2014},
	note = {Export Date: 21 November 2014},
	month = {2014},
	pages = {169 - 186},
	abstract = {Helicobacter pylori is the major cause of chronic gastritis and peptic ulcers. Since the classification as a group 1 carcinogenic by International Agency for Research on Cancer, the importance of the complete H. pylori eradication has obtained a novel meaning. Hence, several studies have been made in order to deepen the knowledge in therapy strategies. However, the current therapy presents unsatisfactory eradication rates due to the lack of therapeutic compliance, antibiotic resistance, the degradation of antibiotics at gastric pH and their insufficient residence time in the stomach. Novel approaches have been made in order to overcome these limitations. The purpose of this review is to provide an overview about the current therapy and its limitations, while highlighting the possibility of using micro- and nanotechnology to develop gastric drug delivery systems, overcoming these difficulties in the future. {\textcopyright} 2014 Elsevier B.V.},
	keywords = {Drug delivery, Helicobacter pylori, Microparticles, nanoparticles, Treatment},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84904904149\&partnerID=40\&md5=96cfe2d7f96a7c7a16bb7eb733c2b71c},
	author = {Lopes, D. and Nunes, C. and Martins, M.C.L. and Sarmento, B. and Reis, S.}
}
@article {3249,
	title = {HA/TCP Scaffolds Obtained by Sucrose Crystal Leaching Method: Preliminary in vitro Evaluation},
	journal = {Materials Research-Ibero-American Journal of Materials},
	volume = {17},
	year = {2014},
	month = {2014},
	pages = {811-816},
	url = {<Go to ISI>://WOS:000342348700003},
	author = {Rodrigues, Leonardo Ribeiro and Laranjeira, Marta de Sousa and Fernandes, Maria Helena and Monteiro, Fernando Jorge and de Carvalho Zavaglia, Cecilia Amelia}
}
@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 {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 {3413,
	title = {Microfluidics co-culture systems for studying tooth innervation},
	journal = {Frontiers in Physiology},
	volume = {5},
	year = {2014},
	note = {Times Cited: 0Lamghari, Meriem/K-2159-2013
Lamghari, Meriem/0000-0002-2500-4548
},
	month = {2014},
	isbn = {1664-042X},
	url = {<Go to ISI>://WOS:000347083900001},
	author = {Pagella, Pierfrancesco and Neto, Estrela and Jimenez-Rojo, Lucia and Lamghari, Meriem and Mitsiadis, Thimios A.}
}
@article {3292,
	title = {Modulation of human dermal microvascular endothelial cell and human gingival fibroblast behavior by micropatterned silica coating surfaces for zirconia dental implant applications},
	journal = {Science and Technology of Advanced Materials},
	volume = {15},
	year = {2014},
	note = {Export Date: 21 November 2014},
	month = {2014},
	abstract = {Dental ceramic implants have shown superior esthetic behavior and the absence of induced allergic disorders when compared to titanium implants. Zirconia may become a potential candidate to be used as an alternative to titanium dental implants if surface modifications are introduced. In this work, bioactive micropatterned silica coatings were produced on zirconia substrates, using a combined methodology of sol-gel processing and soft lithography. The aim of the work was to compare the in vitro behavior of human gingival fibroblasts (HGFs) and human dermal microvascular endothelial cells (HDMECs) on three types of silica-coated zirconia surfaces: flat and micropatterned (with pillars and with parallel grooves). Our results showed that cells had a higher metabolic activity (HGF, HDMEC) and increased gene expression levels of fibroblast-specific protein-1 (FSP-1) and collagen type I (COL I) on surfaces with pillars. Nevertheless, parallel grooved surfaces were able to guide cell growth. Even capillary tube-like networks of HDMEC were oriented according to the surface geometry. Zirconia and silica with different topographies have shown to be blood compatible and silica coating reduced bacteria adhesion. All together, the results indicated that microstructured bioactive coating seems to be an efficient strategy to improve soft tissue integration on zirconia implants, protecting implants from peri-implant inflammation and improving long-term implant stabilization. This new approach of micropatterned silica coating on zirconia substrates can generate promising novel dental implants, with surfaces that provide physical cues to guide cells and enhance their behavior. {\textcopyright} 2014 National Institute for Materials Science.},
	keywords = {bacteria adhesion, Biomaterials, hemolysis, human dermal microvascular endothelial cells (HDMECs), human gingival fibroblasts (HGFs), Micropatterning, Soft lithography},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84898687729\&partnerID=40\&md5=f252b87aeb163775547158cad0cf658b},
	author = {Laranjeira, M.S. and Carvalho, {\^A}. and Pelaez-Vargas, A. and Hansford, D. and Ferraz, M.P. and Coimbra, S. and Costa, E. and Santos-Silva, A. and Fernandes, M.H. and Monteiro, F.J.}
}
@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 {3321,
	title = {Natriuretic peptide system modulation in uninephrectomized rats},
	journal = {Experimental and Clinical Cardiology},
	volume = {20},
	year = {2014},
	note = {Export Date: 21 November 2014},
	month = {2014},
	pages = {2368 - 2387},
	abstract = {BACKGROUND: Cardiac activation of the natriuretic peptide (NP) system plays a major role in the renal adaptations to volume, expansion (VE). However, its role after uninephrectomy (Unx) remains to be elucidated. In the present study, we evaluated cardiac hemodynamics, plasma NP-Type B (BNP) levels nd NP receptor A (NPR-A) and C (NPR-C) expression in the renal cortex (RC) and medulla (RM) of Sham and Unx rats. METHODS: Male Wistar-Han rats (n=42) were randomly assigned to Unx or Sham surgery. Non-invasive blood pressure (BP), invasive left ventricular (LV) hemodynamics and natriuretic response to VE were performed and plasma was collected for BNP determination, 2, 10 and 26 weeks after surgery. In addition, samples from RC and RM were obtained for NPR-A and -C quantification (RT-PCR and western-blot). RESULTS: In Unx, blood pressure elevation and reduced natriuretic response to VE were observed. Although plasma BNP levels increased overtime, no LV dysfunction or myocardial BNP gene activation was observed in Unx. NPR-A mRNA in RC and RM were significantly increased in Unx at 26 weeks. This was accompanied by decreased NPR-C mRNA in the RM in Unx at 10 and 26 weeks, with no differences detected in the RC. CONCLUSIONS: In our experimentalmodel of Unx, progressive BP elevation and reduced natriuretic response to VE were accompanied by modulation of NPR-A and -C expression, in both the RC and RM, in the absence of cardiac activation of the NP system. Our results suggest a local renal modulation of the NP system after Unx. {\textcopyright} 2013 et al.; licensee Cardiology Academic Press.},
	keywords = {BNP, Hypertension, Natriuretic peptide receptor, Uninephrectomy},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84905968553\&partnerID=40\&md5=54369af569474ee0bfddfa5aeac3237a},
	author = {Santos-Ara{\'u}jo, C. and Roncon-Albuquerque Jr., R. and Moreira-Rodrigues, M. and Henriques-Coelho, T. and Quelhas-Santos, J. and Faria, B. and Sampaio-Maia, B. and Leite-Moreira, A.F. and Pestana, M.}
}
@article {3293,
	title = {The predominance of M2-polarized macrophages in the stroma of low-hypoxic bladder tumors is associated with BCG immunotherapy failure},
	journal = {Urologic Oncology: Seminars and Original Investigations},
	volume = {32},
	year = {2014},
	note = {Export Date: 21 November 2014},
	month = {2014},
	pages = {449 - 457},
	abstract = {Objective: Bacillus Calmette-Gu{\'e}rin (BCG) immunotherapy is the gold standard treatment for superficial bladder tumors with intermediate/high risk of recurrence or progression. However, approximately 30\% of patients fail to respond to the treatment. Effective BCG therapy needs precise activation of the type 1 helper cells immune pathway. Tumor-associated macrophages (TAMs) often assume an immunoregulatory M2 phenotype and may directly interfere with the BCG-induced antitumor immune response. Thus, we aim to clarify the influence of TAMs, in particular of the M2 phenotype in stroma and tumor areas, in BCG treatment outcome. Patients and methods: The study included 99 patients with bladder cancer treated with BCG. Tumors resected before treatment were evaluated using immunohistochemistry for CD68 and CD163 antigens, which identify a lineage macrophage marker and a M2-polarized specific cell surface receptor, respectively. CD68+ and CD163+ macrophages were evaluated within the stroma and tumor areas, and high density of infiltrating cells spots were selected for counting. Hypoxia, an event known to modulate macrophage phenotype, was also assessed through hypoxia induced factor (HIF)-1α expression. Results: Patients in whom BCG failed had high stroma-predominant CD163+ macrophage counts (high stroma but low tumor CD163+ macrophages counts) when compared with the ones with a successful treatment (71\% vs. 47\%, P = 0.017). Furthermore, patients presenting this phenotype showed decreased recurrence-free survival (log rank, P = 0.008) and a clear 2-fold increased risk of BCG treatment failure was observed in univariate analysis (hazard ratio = 2.343; 95\% CI: 1.197-4.587; P = 0.013). Even when adjusted for potential confounders, such as age and therapeutic scheme, multivariate analysis revealed 2.6-fold increased risk of recurrence (hazard ratio = 2.627; 95\% CI: 1.340-5.150; P = 0.005). High stroma-predominant CD163+ macrophage counts were also associated with low expression of HIF-1α in tumor areas, whereas high counts of CD163+ in the tumor presented high expression of HIF-1α in tumor nests. Conclusions: TAMs evaluation using CD163 is a good indicator of BCG treatment failure. Moreover, elevated infiltration of CD163+ macrophages, predominantly in stroma areas but not in the tumor, may be a useful indicator of BCG treatment outcome, possibly owing to its immunosuppressive phenotype. {\textcopyright} 2014 Elsevier Inc.},
	keywords = {BCG immunotherapy, Bladder cancer, CD163, CD68, Tumor-associated macrophages},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84899473274\&partnerID=40\&md5=4716f90a43e05e83d41df6d643097edd},
	author = {Lima, L. and Oliveira, D. and Tavares, A. and Amaro, T. and Cruz, R. and Oliveira, M.J. and Ferreira, J.A. and Santos, L.}
}
@article {3301,
	title = {Primary bone marrow mesenchymal stromal cells rescue the axonal phenotype of twitcher mice},
	journal = {Cell Transplantation},
	volume = {23},
	year = {2014},
	note = {Cited By (since 1996):2Export Date: 21 November 2014},
	month = {2014},
	pages = {239 - 252},
	abstract = {Krabbe{\textquoteright}s disease (KD) is a demyelinating disorder caused by the deficiency of lysosomal galactocerebrosidase (GALC), affecting both the central (CNS) and the peripheral nervous system (PNS). A current therapy, hematopoietic stem cell transplantation (HSCT), is ineffective at correcting the PNS pathology. We have previously shown that systemic delivery of immortalized bone marrow-derived murine mesenchymal stromal cells (BM-MSCs) diminishes the neuropathology of transplanted Twitcher mice, a murine model of KD. In this study, to move one step closer to clinical application, the effectiveness of a systematic delivery of primary BM-MSCs to promote recovery of the Twitcher PNS was assessed. Primary BM-MSCs grafted to the Twitcher sciatic nerve led to increased GALC activity that was not correlated to decreased psychosine (the toxic GALC substrate) accumulation. Nevertheless, BM-MSC transplantation rescued the axonal phenotype of Twitcher mice in the sciatic nerve, with an increased density of both myelinated and unmyelinated axons in transplanted animals. Whereas no increase in myelination was observed, upon transplantation an increased proliferation of Schwann cell precursors occurred. Supporting these findings, in vitro, BM-MSCs promoted neurite outgrowth of Twitcher sensory neurons and proliferation of Twitcher Schwann cells. Moreover, BM-MSCs expressed nerve growth factor (NGF) and brain-derived neurotrophic factor (BDNF) and promoted increased BDNF synthesis by neighboring Schwann cells. Besides their action in neurons and glia, BM-MSCs led to macrophage activation in Twitcher sciatic nerves. In summary, primary BM-MSCs diminish the neuropathology of Twitcher sciatic nerves by coordinately affecting neurons, glia, and macrophages. {\textcopyright} 2014 Cognizant Comm. Corp.},
	keywords = {Axonal degeneration, Bone marrow-derived mesenchymal stromal cells (BM-MSCs), Krabbe{\textquoteright}s disease (KD), Twitcher mice},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84893339069\&partnerID=40\&md5=51c17895a58b06f3b302616459dff62b},
	author = {Miranda, C.O. and Teixeira, C.A. and Sousa, V.F. and Santos,TE and Liz, M.A. and Marques,AM and Pinto-Do-{\'O}, P. and Sousa, M.M.}
}
@article {3306,
	title = {Sensory neurons and osteoblasts: Close partners in a microfluidic platform},
	journal = {Integrative Biology (United Kingdom)},
	volume = {6},
	year = {2014},
	note = {Cited By (since 1996):2Export Date: 21 November 2014},
	month = {2014},
	pages = {586 - 595},
	abstract = {Innervation has proven to be critical in bone homeostasis/regeneration due to the effect of soluble factors, produced by nerve fibers, associated with changes in the activity of bone cells. Thus, in this study, we have established and characterized a coculture system comprising sensory neurons and osteoblasts to mimic the in vivo scenario where nerve fibers can be found in a bone microenvironment. Embryonic or adult primary dorsal root ganglion (DRG) and MC3T3-E1 osteoblastic cells were cocultured in compartmentalized microfluidic platforms and morphological and functional tests were performed. The time of adhesion and readout of axonal outgrowth were improved by the alignment of DRG with the axis of microgrooves, which showed to be a crucial step for the designed experiments. Cocultures of entire DRG from adult origin with osteoblasts were performed, showing extended DRG projections towards the axonal compartment, reaching osteoblastic cells. Immunocytochemistry showed that the neurites present within the osteoblastic compartment were immunoreactive to synapsin and calcitonin gene-related peptide suggesting the presence of specialized structures involved in this crosstalk. This evidence was further confirmed by electron microscopy where varicosities were detected as well as electron dense structures in neurite membranes. Aiming to mimic the properties of tissue extracellular matrices, MC3T3-E1 cells were seeded in the axonal side upon laminin, collagen or within 3D functionalized alginate matrices and axonal outgrowth was clearly observed. In order to analyze and quantify data with reproducible image analysis, a semi-automated algorithm was also developed. The collagen and laminin substrates displayed a higher amount of axons reaching the axonal side. Overall, the established method revealed to be a suitable tool to study the interaction between the peripheral nervous system and bone cells in different contexts mimicking the in vivo scenario. {\textcopyright} 2014 the Partner Organisations 2014.},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84901624359\&partnerID=40\&md5=0ca57755478aaa339ef3b3cc61479fc3},
	author = {Neto, E. and Alves, C.J. and Sousa, D.M. and Alencastre, I.S. and Louren{\c c}o, A.H. and Leit{\~a}o, L. and Ryu, H.R. and Jeon, N.L. and Fernandes, R. and Aguiar, P. and Almeida, R.D. and Lamghari, M.}
}
@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 {3404,
	title = {Translating chitosan to clinical delivery of nucleic acid-based drugs},
	journal = {Mrs Bulletin},
	volume = {39},
	year = {2014},
	note = {Gomes, Carla Pereira Ferreira Lopes, Catia Daniela Duarte Moreno, Pedro Miguel Varela-Moreira, Aida Jose Alonso, Maria Pego, Ana PaulaPego, Ana Paula/C-6942-2012; Moreno, Pedro/J-9382-2013; Lopes, Catia/O-1090-2013
Pego, Ana Paula/0000-0001-5169-328X; Moreno, Pedro/0000-0002-3773-3262; Lopes, Catia/0000-0002-7467-6498
},
	month = {2014},
	pages = {60-70},
	isbn = {0883-7694},
	url = {<Go to ISI>://WOS:000330833200016},
	author = {Gomes, C.P. and Lopes, C.D.F. and Moreno, P.M.D. and Varela-Moreira, A. and Alonso, M.J. and Pego, A. P.}
}
@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 {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 {2836,
	title = {Brain targeting effect of camptothecin-loaded solid lipid nanoparticles in rat after intravenous administration},
	journal = {European Journal of Pharmaceutics and Biopharmaceutics},
	volume = {85},
	year = {2013},
	note = {Export Date: 12 December 2013Source: Scopus},
	month = {2013///},
	pages = {488 - 502},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84888387689\&partnerID=40\&md5=e40e0a0c4221bfbc77f793ace6e47dcd},
	author = {Martins, S.M. and Sarmento, B. and Nunes, C. and L{\'u}cio, M. and Reis, S. and Ferreira, D.C.}
}
@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 {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 {2889,
	title = {Loss of WNK2 expression by promoter gene methylation occurs in adult gliomas and triggers Rac1-mediated tumour cell invasiveness},
	journal = {Human Molecular Genetics},
	volume = {22},
	year = {2013},
	note = {Cited By (since 1996):2Export Date: 12 December 2013Source: ScopusArt. No.: dds405},
	month = {2013///},
	pages = {84 - 95},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84871200220\&partnerID=40\&md5=b2bfd70fb2a8a4e517e4ad698a2461cc},
	author = {Moniz, S. and Martinho, O. and Pinto, F. and Sousa, B. and Loureiro, C. and Oliveira, M.J. and Moita, L.F. and Honavar, M. and Pinheiro, C. and Pires, M. and Lopes, J.M. and Jones, C. and Costello, J.F. and Paredes, J. and Reis, R.M. and Jordan, P.}
}
@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 {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 {2886,
	title = {Novel resveratrol nanodelivery systems based on lipid nanoparticles to enhance its oral bioavailability},
	journal = {International Journal of Nanomedicine},
	volume = {8},
	year = {2013},
	note = {Cited By (since 1996):3Export Date: 12 December 2013Source: Scopus},
	month = {2013///},
	pages = {177 - 187},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84872351206\&partnerID=40\&md5=fc5d64a3ada5d6918b225c107d60049e},
	author = {Neves, A.R. and L{\'u}cio, M. and Martins, S. and Lima, J.L.C. and Reis, S.}
}
@article {2865,
	title = {Overexpression of tumour-associated carbohydrate antigen sialyl-Tn in advanced bladder tumours},
	journal = {Molecular Oncology},
	volume = {7},
	year = {2013},
	note = {Cited By (since 1996):1Export Date: 12 December 2013Source: Scopus},
	month = {2013///},
	pages = {719 - 731},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84878107131\&partnerID=40\&md5=52c1f1e8bc83224d947840df0f3dd539},
	author = {Ferreira, J.A. and Videira, P.A. and Lima, L. and Pereira, S. and Silva, M. and Carrascal, M. and Severino, P.F. and Fernandes, E. and Almeida, A. and Costa, C. and Vitorino, R. and Amaro, T. and Oliveira, M.J. and Reis, C.A. and Dall{\textquoteright}Olio, F. and Amado, F. and Santos, L.L.}
}
@article {2891,
	title = {Response of monocultured and co-cultured human microvascular endothelial cells and mesenchymal stem cells to macroporous granules of nanostructured- hydroxyapatite agglomerates},
	journal = {Journal of Biomedical Nanotechnology},
	volume = {9},
	year = {2013},
	note = {Export Date: 12 December 2013Source: Scopus},
	month = {2013///},
	pages = {1594 - 1606},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84883350324\&partnerID=40\&md5=d78750836664276ab71c67301dab9c83},
	author = {Laranjeira, M.S. and Fernandes, M.H. and Monteiro, F.J.}
}
@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.}
}
@book {2201,
	title = {Automatic assessment of Leishmania infection indexes on in vitro macrophage cell cultures},
	series = {Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)Lect. Notes Comput. Sci.},
	volume = {7325 LNCS},
	year = {2012},
	note = {Conference code: 91199Export Date: 21 November 2012Source: Scopusdoi: 10.1007/978-3-642-31298-4_51Language of Original Document: EnglishCorrespondence Address: Leal, P.; Universidade Do Porto, Faculdade de Engenharia, Departamento de Engenharia Qu{\'\i}micaPortugalReferences: Castro, H., Sousa, C., Santos, M., Cordeiro-da-Silva, A., Floh{\'e}, L., Tom{\'a}s, A., Complementary antioxidant defence by cytoplasmic and mitochondrial peroxiredoxins in Leishmania infantum (2002) Free Radical Biology and Medicine, 33, pp. 1552-1562;Chen, X., Zhou, X., Wong, S., Automated segmentation, classification, and tracking of cancer cell nuclei in time-lapse microscopy IEEE Trans. on Biomedical Engineering, 53 (4), pp. 762-766; 
Marcuzzo, M., Quelhas, P., Campilho, A., Maria Mendon{\c c}a, A., Campilho, A., Automated arabidopsis plant root cell segmentation based on svm classification and region merging (2009) Computers in Biology and Medicine, 39 (9); 
Chen, Y., Ladi, E., Herzmark, P., Robey, E., Roysam, B., Automated 5-d analysis of cell migration and interaction in the thymic cortex from time-lapse sequences of 3-d multi-channel multi-photon images (2009) J. Immunol. Methods, 340 (1), pp. 65-80; 
Esteves, T., Quelhas, P., Mendon{\c c}a, A.M., Campilho, A., Gradient convergence filters and a phase congruency approach for in vivo cell nuclei detection Machine Vision and Applications, , in press; 
Schmitt, O., Hasse, M., Morphologic multiscale decomposition of connected regions with emphasis on cell clusters (2009) CVIU, 113 (2), pp. 188-201; 
Usaj, M., Torkar, D., Kanduser, M., Miklavcic, D., Cell counting tool parameters optimization approach for electroporation efficiency determination of attached cells in phase contrast image (2010) Journal of Microscopy, 241 (3), pp. 303-314; 
Sezgin, M., Sankur, B., Survey over image thresholding techniques and quantitative performance evaluation (2003) Journal of Electronic Imaging, 13 (1), pp. 146-165; 
Lowe, D., Distinctive Image Features from Scale-Invariant Keypoints (2004) International Journal of Computer Vision; 
Lindberg, T., Scale-space theory: A basic tool for analysing structures at different scales (1994) Journal of Applied Statistics, pp. 11-24; 
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CellNote: Plataforma para An?alise Assistida de Imagens, Bruno Afonso Da Cruz Lopes, , Master Thesis, Faculty of Sciences of the University of Porto
},
	month = {2012///},
	pages = {432 - 439},
	address = {Aveiro},
	abstract = {Evaluation of parasite infection indexes on in vitro cell cultures is a practice commonly employed by biomedical researchers to address biological questions or to test the efficacy of novel anti-parasitic compounds. In the particular case of Leishmania infantum, a unicellular parasite that parasitizes macrophages, infection indexes are usually determined either by visual inspection of cells directly under the microscope or by counting digital images using appropriate software. In either case assessment of infection indexes is time consuming, thus motivating the creation of automatic image analysis approaches that allow large scale studies of Leishmania-infected macrophage cultures. We propose a fully automated method for automatic evaluation of parasite infection indexes through the segmentation of individual macrophages nucleus and cytoplasm, as well as the segmentation and co-localization of the parasites in the image. To perform such analysis with robustness and increased performance we propose the use of local image filters tuned to the specific size of the objects to detect, in conjunction with image segmentation approaches. The objects size estimation is then improved through a learning feedback loop. Cytoplasm is detected by seeded watershed segmentation. Our approach obtains, for 86 images from 4 experiments, an average parasite infection index evaluation error of 2.3\%. {\textcopyright} 2012 Springer-Verlag.},
	keywords = {Automated methods, Automatic assessment, Automatic evaluation, Automatic image analysis, Cell culture, Cell nuclei detection, cell nucleus, Colocalization, Digital image, Enzyme inhibition, Feed-back loop, Image analysis, Image filters, Image segmentation, In-vitro, Leishmania, Leishmania infantum, Macrophage cells, Macrophage culture, Macrophages, microscopy image segmentation, Microscopy images, Parasite infection, Parasite-, Size estimation, Visual inspection, Watershed segmentation},
	isbn = {03029743 (ISSN); 9783642312977 (ISBN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84864131020\&partnerID=40\&md5=71523f4ff6de3e6ecc717c2fce28284a},
	author = {Leal, P. and Ferro, L. and Marques, M. and Rom{\~a}o, S. and Cruz, T. and Tom{\'a}, A.M. and Castro, H. and Quelhas, P.}
}
@article {2189,
	title = {E-cadherin dysfunction in gastric cancer - Cellular consequences, clinical applications and open questions},
	journal = {FEBS LettersFEBS Lett.},
	volume = {586},
	year = {2012},
	note = {Export Date: 21 November 2012Source: ScopusCODEN: FEBLAdoi: 10.1016/j.febslet.2012.07.045PubMed ID: 22841718Language of Original Document: EnglishCorrespondence Address: Seruca, R.; IPATIMUP, Institute of Molecular Pathology and Immunology, University of Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal; email: rseruca@ipatimup.ptChemicals/CAS: uvomorulin, 112956-45-3; CadherinsReferences: Milne, A.N., Carneiro, F., O{\textquoteright}Morain, C., Offerhaus, G.J., Nature meets nurture: Molecular genetics of gastric cancer (2009) Hum. Genet., 126, pp. 615-628. , 10.1007/s00439-009-0722-x;Lauren, P., The Two Histological Main Types of Gastric Carcinoma: Diffuse and So-Called Intestinal-Type Carcinoma. An Attempt at a Histo-Clinical Classification (1965) Acta. Pathol. Microbiol. Scand., 64, pp. 31-49; 
Hudler, P., Genetic aspects of gastric cancer instability (2012) ScientificWorldJournal, 2012, p. 761909. , 10.1100/2012/761909; 
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Lynch, H.T., Grady, W., Suriano, G., Huntsman, D., Gastric cancer: New genetic developments (2005) J Surg. Oncol., 90, pp. 114-133. , 10.1002/jso.20214 discussion 133; 
Carneiro, F., Amado, M., David, L., Clausen, H., Sobrinho-Simoes, M., Glycosylation features of gastric carcinoma initiation and progression. A review with emphasis on simple mucin-type carbohydrates and histo-blood group antigens of the Lewis system (1994) Eur. J. Cancer Prev., 3 (SUPPL. 2), pp. 39-46; 
Zheng, L., Wang, L., Ajani, J., Xie, K., Molecular basis of gastric cancer development and progression (2004) Gastric Cancer, 7, pp. 61-77. , 10.1007/s10120-004-0277-4; 
Paredes, J., Figueiredo, J., Albergaria, A., Oliveira, P., Carvalho, J., Ribeiro, A.S., Caldeira, J., Oliveira, M.J., Epithelial E- and P-cadherins: Role and clinical significance in cancer (2012) Biochim. Biophys. Acta, 1826, pp. 297-311. , 10.1016/j.bbcan.2012.05.002; 
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},
	month = {2012///},
	pages = {2981 - 2989},
	abstract = {E-cadherin plays a major role in cell-cell adhesion and inactivating germline mutations in its encoding gene predispose to hereditary diffuse gastric cancer. Evidence indicates that aside from its recognized role in early tumourigenesis, E-cadherin is also pivotal for tumour progression, including invasion and metastization. Herein, we discuss E-cadherin alterations found in a cancer context, associated cellular effects and signalling pathways, and we raise new key questions that will impact in the management of GC patients and families. {\textcopyright} 2012 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.},
	keywords = {Adhesion, Cadherins, cancer growth, cancer invasion, cancer patient, cancer susceptibility, cell adhesion, complex formation, conference paper, E-cadherin, embryo development, endocytosis, epigenetics, epithelial mesenchymal transition, Gastric cancer, gene mutation, gene silencing, genetic susceptibility, Germ-Line Mutation, HDGC, Helicobacter infection, Helicobacter Infections, Helicobacter pylori, histone deacetylase inhibitor, human, Humans, Invasion, metastasis, molecular pathology, nonhuman, priority journal, protein analysis, protein depletion, protein expression, protein function, protein structure, regulatory mechanism, signal transduction, Signalling, stomach cancer, stomach carcinogenesis, Stomach Neoplasms, Tumour, uvomorulin},
	isbn = {00145793 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84864922992\&partnerID=40\&md5=455ae054dc6c8f95dc9e81d77fec1ad9},
	author = {Carneiro, P. and Fernandes, M.S. and Figueiredo, J. and Caldeira, J. and Carvalho, J. and Pinheiro, H. and Leite, M. and Melo, S. and Oliveira, P. and Sim{\~o}es-Correia, J. and Oliveira, M.J. and Carneiro, F. and Figueiredo, C. and Paredes, J. and Oliveira, C. and Seruca, R.}
}
@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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	year = {2012},
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},
	month = {2012///},
	pages = {297 - 311},
	abstract = {E-cadherin and P-cadherin are major contributors to cell-cell adhesion in epithelial tissues, playing pivotal roles in important morphogenetic and differentiation processes during development, and in maintaining integrity and homeostasis in adult tissues. It is now generally accepted that alterations in these two molecules are observed during tumour progression of most carcinomas. Genetic or epigenetic alterations in E- and P-cadherin-encoding genes (CDH1 and CDH3, respectively), or alterations in their proteins expression, often result in tissue disorder, cellular de-differentiation, increased invasiveness of tumour cells and ultimately in metastasis. In this review, we will discuss the major properties of E- and P-cadherin molecules, its regulation in normal tissue, and their alterations and role in cancer, with a specific focus on gastric and breast cancer models. {\textcopyright} 2012 Elsevier B.V.},
	keywords = {antineoplastic activity, antineoplastic agent, Breast, breast cancer, Cancer, cancer chemotherapy, cancer model, cancer survival, drug effect, E-cadherin, Gastric, gene expression regulation, gene function, gene location, gene overexpression, gene structure, genetic association, genetic code, Helicobacter infection, Hereditary diffuse gastric cancer, human, in vivo study, loss of function mutation, lymph node metastasis, malignant neoplastic disease, molecular dynamics, molecular pathology, molecularly targeted therapy, nonhuman, P cadherin, P cadherin gene, P-cadherin, pf 03732010, priority journal, protein expression, protein function, protein inhibitor, protein processing, review, signal transduction, stomach cancer, transcription regulation, tumor gene, unclassified drug, uvomorulin, uvomorulin gene, vasculotropin inhibitor},
	isbn = {0304419X (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84861800037\&partnerID=40\&md5=2d52be63f4168a561b1bda1315e1f429},
	author = {Paredes, J. and Figueiredo, J. and Albergaria, A. and Oliveira, P. and Carvalho, J. and Ribeiro, A.S. and Caldeira, J. and Costa, A.M. and Sim{\~o}es-Correia, J. and Oliveira, M.J. and Pinheiro, H. and Pinho, S.S. and Mateus, R. and Reis, C.A. and Leite, M. and Fernandes, M.S. and Schmitt, F. and Carneiro, F. and Figueiredo, C. and Oliveira, C. and Seruca, R.}
}
@book {2202,
	title = {Hand detection and tracking using the skeleton of the blob for medical rehabilitation applications},
	series = {Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)Lect. Notes Comput. Sci.},
	volume = {7325 LNCS},
	year = {2012},
	note = {Conference code: 91199Export Date: 21 November 2012Source: Scopusdoi: 10.1007/978-3-642-31298-4_16Language of Original Document: EnglishCorrespondence Address: Gil-Jim{\'e}nez, P.; Universidad de Alcal{\'a}, Alcal{\'a} de Henares, Madrid, Spain; email: pedro.gil@uah.esReferences: Breuer, P., Eckes, C., M{\"u}ller, S., Hand Gesture Recognition with a Novel IR Time-of-Flight Range Camera-A Pilot Study (2007) LNCS, 4418, pp. 247-260. , Gagalowicz, A., Philips, W. (eds.) MIRAGE 2007. Springer, Heidelberg;Chang, C., Lin, C., (2001) LIBSVM: A Library for Support Vector Machines, , http://www.csie.ntu.edu.tw/~cjlin/libsvm, software available at; 
Cole, J., Crowle, S., Austwick, G., Slater, D.H., Exploratory findings with virtual reality for phantom limb pain; from stump motion to agency and analgesia (2009) Disability and Rehabilitation, 31 (10), pp. 846-854; 
Elgammal, A., Muang, C., Hu, D., Skin detection - A short tutorial (2009) Encyclopedia of Biometrics; 
G{\'o}mez-Moreno, H., Maldonado-Basc{\'o}n, S., Gil-Jim{\'e}nez, P., Lafuente-Arroyo, S., (2010) Goal Evaluation of Segmentation Algorithms for Traffic Sign Recognition, 11 (4), pp. 917-930. , July; 
Gonz{\'a}lez, R., Woods, R., (1993) Digital Image Processing, , Addison-Wesley; 
Von Hardenberg, C., B{\'e}rard, F., Bare-hand human-computer interaction (2001) Proceedings of the 2001 Workshop on Perceptive User Interfaces, PUI 2001, pp. 1-8; 
Hsieh, C.C., Liou, D.H., Lee, D., A real time hand gesture recognition system using motion history image (2010) 2010 2nd International Conference on Signal Processing Systems (ICSPS), 2, pp. V2394-V2398. , July; 
Imai, A., Shimada, N., Shirai, Y., 3-d hand posture recognition by training contour variation (2004) Proceedings of Sixth IEEE International Conference on Automatic Face and Gesture Recognition, pp. 895-900. , May; 
Isaacs, J., Foo, J., Hand pose estimation for american sign language recognition (2004) Southern Symposium on System Theory, pp. 132-136; 
Lakshmi, J.K., Punithavalli, M., A survey on skeletons in digital image processing (2009) Digital Image Processing, pp. 260-269; 
Letessier, J., B{\'e}rard, F., Visual tracking of bare fingers for interactive surfaces (2004) Proceedings of the 17th Annual ACM Symposium on User Interface Software and Technology, UIST 2004, pp. 119-122. , ACM; 
Lewis, J.S., Kersten, P., McCabe, C.S., McPherson, K.M., Blake, D.R., Body perception disturbance: A contribution to pain in complex regional pain syndrome (2007) CRPS; 
McCabe, C.S., Haigh, R.C., Ring, E.F., Halligan, P.W., Wall, P.D., Blake, D.R., A controlled pilot study of the utility of mirror visual feedback in the treatment of complex regional pain syndrome (type 1) (2003) Rheumatology, 42 (1), pp. 97-101; 
Murray, C.D., Patchick, E., Pettifer, S., Howard, T., Caillette, F., Kulkarni, J., Bamford, C., Investigating the efficacy of a virtual mirror box in treating phantom limb pain in a sample of chronic sufferers (2006) Disabil Human Dev., 5 (3), pp. 227-234; 
Nope, R., Sandra, E., Humberto Loaiza, C., Eduardo Caicedo, B., Estudio omparativo de t{\'e}cnicas para el reconocimiento de gestos por visi{\'o}n artificial (2009) Avances en Sistemas e Informtica, 5 (3); 
Oikonomidis, I., Nikolaos, K., Argyros, A.A., Efficient model-based 3d tracking of hand articulations using kinect (2011) Tracking Hand Articulations Using Kinect; 
Pugeault, N., Bowden, R., Spelling it out: Real-time ASL fingerspelling recognition IEEE Workshop on Consumer Depth Cameras for Computer Vision (2011); 
Ren, Z., Meng, J., Yuan, J., Zhang, Z., Robust hand gesture recognition with kinect sensor (2011) Proceedings of the 19th ACM International Conference on Multimedia, MM 2011, pp. 759-760. , ACM; 
Yoruk, E., Konukoglu, E., Sankur, B., Darbon, J., Shape-based hand recognition (2006) IEEE Transactions on Image Processing, 15 (7), pp. 1803-1815
},
	month = {2012///},
	pages = {130 - 137},
	address = {Aveiro},
	abstract = {This article presents an image processing application for hand detection and tracking using the 4-connected skeleton of the segmentation mask. The system has been designed to be used with techniques of virtual reality to develop an interactive application for phantom limb pain reduction in therapeutic treatments. One of the major contributions is the design of a fast and accurate skeleton extractor, that has proven to be faster than those available in the literature. The skeleton allows the system to precisely detect the position of all the interest points of the hand (namely the fingers and the hand center). The system, composed of both the hand detector and tracker, and the virtual reality application, can work in real-time, allowing the patient to watch the virtual image of his own hand on a screen. {\textcopyright} 2012 Springer-Verlag.},
	keywords = {blob skeleton, Hand detection, hand detection and tracking, Image analysis, Image processing applications, Interactive applications, Musculoskeletal system, phantom limb pain reduction, Therapeutic treatments, Virtual images, virtual reality},
	isbn = {03029743 (ISSN); 9783642312977 (ISBN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84864140682\&partnerID=40\&md5=39ee654bd93d52a92d0be5977cff42f7},
	author = {Gil-Jim{\'e}nez, P. and Losilla-L{\'o}pez, B. and Torres-Cueco, R. and Campilho, A. and L{\'o}pez-Sastre, R.}
}
@article {2204,
	title = {Neuropeptide Y Y1 receptor antagonism increases bone mass in mice},
	journal = {BoneBone},
	volume = {51},
	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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},
	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 {2193,
	title = {Reciprocal induction of human dermal microvascular endothelial cells and human mesenchymal stem cells: Time-dependent profile in a co-culture system},
	journal = {Cell ProliferationCell Prolif.},
	volume = {45},
	year = {2012},
	note = {Export Date: 21 November 2012Source: ScopusCODEN: CPROEdoi: 10.1111/j.1365-2184.2012.00822.xPubMed ID: 22607133Language of Original Document: EnglishCorrespondence Address: Laranjeira, M.S.; Departamento de Engenharia Metalurgicae de Materiais, Faculdade de Engenharia (FEUP), Universidade do Porto, Rua Roberto Frias, s/n, 4200-465 Porto, Portugal; email: martalaranjeira@gmail.comMolecular Sequence Numbers: GENBANK: AB021221, NM_000088, NM_000552, NM_001200, NM_001795;Chemicals/CAS: DNA, 9007-49-2; F actin, 39409-31-9; alkaline phosphatase, 9001-78-9; calcein, 1461-15-0; calcium phosphate, 10103-46-5, 13767-12-9, 14358-97-5, 7758-87-4; DNA PrimersReferences: Santos, M., Reis, R., Vascularization in bone tissue engineering: physiology, current strategies, major hurdles and future challenges (2010) Macromol. Biosci., 10, pp. 12-20;Grellier, M., Granja, P.L., Fricain, J.-C., Bidarra, S.J., Renard, M., Bareille, R., The effect of the co-immobilization of human osteoprogenitors and endothelial cells within alginate microspheres on mineralization in a bone defect (2009) Biomaterials, 30, pp. 3271-3278; 
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},
	month = {2012///},
	pages = {320 - 334},
	abstract = {Objectives: Angiogenesis is closely associated with osteogenesis where reciprocal interactions between endothelial and osteoblast cells play an important role in bone regeneration. For these reasons, the aim of this work was to develop a co-culture system to study in detail any time-dependent interactions between human mesenchymal stem cells (HMSC) and human dermal microvascular endothelial cells (HDMEC), co-cultured in a 2D system, for 35 days. Materials and methods: HMSC and HDMEC were co-cultured at a ratio of 1:4, respectively. Single-cell cultures were used as controls. Cell viability/proliferation was assessed using MTT, DNA quantification and calcein-AM assays. Cell morphology was monitored using confocal microscopy, and real time PCR was performed. Alkaline phosphatase activity and histochemical staining were evaluated. Matrix mineralization assays were also performed. Results: Cells were able to grow in characteristic patterns maintaining their viability and phenotype expression throughout culture time, compared to HMSC and HDMEC monocultures. HMSC differentiation seemed to be enhanced in the co-culture conditions, since it was observed an over expression of osteogenesis-related genes, and of ALP activity. Furthermore, presence of calcium phosphate deposits was also confirmed. Conclusions: This work reports in detail the interactions between HMSC and HDMEC in a long-term co-culture 2D system. Endothelial and mesenchymal stem cells cultured in the present co-culture conditions ensured proliferation and phenotype differentiation of cell types, osteogenesis stimulation and over-expression of angiogenesis-related genes, in the same culture system. It is believed that the present work can lead to significant developments for bone tissue regeneration and cell biology studies. {\textcopyright} 2012 Blackwell Publishing Ltd.},
	keywords = {alkaline phosphatase, article, Base Sequence, calcein, calcium phosphate, CD31 antigen, Cell culture, cell differentiation, cell growth, cell interaction, cell nucleus, cell population, cell proliferation, cell structure, cell viability, coculture, Coculture Techniques, confocal microscopy, controlled study, DNA, DNA determination, DNA Primers, Endothelium, Vascular, enzyme histochemistry, F actin, flow cytometry, gene overexpression, human, human cell, Humans, immunohistochemistry, in vitro study, Mesenchymal stem cell, Mesenchymal Stem Cells, Microscopy, Confocal, Microscopy, Electron, Scanning, microvascular endothelial cell, Microvessels, mineralization, nucleotide sequence, osteoblast, phenotype, process development, real time polymerase chain reaction, Real-Time Polymerase Chain Reaction, scanning electron microscope, single cell analysis, Skin},
	isbn = {09607722 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84862878215\&partnerID=40\&md5=4bbe59ef9f5c7b7424b78608e089c571},
	author = {Laranjeira, M.S. and Fernandes, M.H. and Monteiro, F.J.}
}
@article {2210,
	title = {Tumor cell-educated periprostatic adipose tissue acquires an aggressive cancer-promoting secretory profile},
	journal = {Cellular Physiology and BiochemistryCell. Physiol. Biochem.},
	volume = {29},
	year = {2012},
	note = {Cited By (since 1996): 3Export Date: 21 November 2012Source: ScopusCODEN: CEPBEdoi: 10.1159/000337604PubMed ID: 22415092Language of Original Document: EnglishCorrespondence Address: Ribeiro, R.J.T.; Portuguese Institute of Oncology, Porto Centre Molecular Oncology Group -CI, Edif{\'\i}cio Laborat{\'o}rios -Piso 4, Rua Dr. Ant{\'o}nio Bernardino Almeida, 4200-072 Porto, Portugal; email: oriebir.r@gmail.comChemicals/CAS: adiponectin, 283182-39-8; gelatinase B, 146480-36-6; osteopontin, 106441-73-0; Adiponectin; Culture Media, Conditioned; Cytokines; DNA, Mitochondrial; Interleukin-6; Matrix Metalloproteinase 2, 3.4.24.24; Matrix Metalloproteinase 9, 3.4.24.35; Osteopontin, 106441-73-0; Tumor Necrosis Factor-alphaReferences: Hsing, A.W., Sakoda, L.C., Chua Jr., S., Obesity, metabolic syndrome, and prostate cancer (2007) Am J Clin Nutr, 86, pp. s843-857;Cao, Y., Ma, J., Body mass index, prostate cancer-specific mortality, and biochemical recurrence: A systematic review and meta-analysis (2011) Cancer Prev Res (Phila), 4, pp. 486-501; 
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},
	month = {2012///},
	pages = {233 - 240},
	abstract = {Background/Aims: The microenvironment produces important factors that are crucial to prostate cancer (PCa) progression. However, the extent to which the cancer cells stimulate periprostatic adipose tissue (PPAT) to produce these proteins is largely unknown. Our purpose was to determine whether PCa cell-derived factors influence PPAT metabolic activity. Methods: Primary cultures of human PPAT samples from PCa patients (adipose tissue organotypic explants and primary stromal vascular fraction, SVF) were stimulated with conditioned medium (CM) collected from prostate carcinoma (PC3) cells. Cultures without CM were used as control. We used multiplex analysis and ELISA for protein quantification, qPCR to determine mitochondrial DNA (mtDNA) copy number and zymography for matrix metalloproteinase activity, in order to evaluate the response of adipose tissue explants and SVFs to PC3 CM. Results: Stimulation of PPAT explants with PCa PC3 CM induced adipokines associated with cancer progression (osteopontin, tumoral necrosis factor alpha and interleukin-6) and reduced the expression of the protective adipokine adiponectin. Notably, osteopontin protein expression was 13-fold upregulated. Matrix metalloproteinase 9 activity and mitochondrial DNA copy number were higher after stimulation with cancer CM. Stromovascular cells from PPAT in culture were not influenced by tumor-derived factors. Conclusion: The modulation of adipokine expression by tumor CM indicates the pervasive extent to which tumor cells command PPAT to produce factors favorable to their aggressiveness. {\textcopyright} 2012 S. Karger AG, Basel.},
	keywords = {Adipokines, adiponectin, adipose tissue, adult, article, cancer cell, cancer growth, Cells, Cultured, clinical article, controlled study, Culture Media, Conditioned, culture medium, Cytokines, DNA, Mitochondrial, enzyme activity, enzyme linked immunosorbent assay, explant, gelatinase B, human, human cell, human tissue, Humans, interleukin 6, Interleukin-6, male, Matrix Metalloproteinase 2, Matrix Metalloproteinase 9, Middle Aged, mitochondrial DNA, Osteopontin, Periprostatic adipose tissue, priority journal, Prostate cancer, Prostatic Neoplasms, protein expression, protein induction, protein secretion, quantitative analysis, stroma cell, tissue metabolism, tumor necrosis factor alpha, Tumor Necrosis Factor-alpha},
	isbn = {10158987 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84859829669\&partnerID=40\&md5=a76be7e5c0037e77140c1fc9aca48a5a},
	author = {Ribeiro, R.J.T. and Monteiro, C.P.D. and Cunha, V.F.P.M. and Azevedo, A.S.M. and Oliveira, M.J. and Monteiro, R. and Fraga, A.M. and Pr{\'\i}ncipe, P. and Lobato, C. and Lobo, F. and Morais, A. and Silva, V. and Sanches-Magalh{\~a}es, J. and Oliveira, J. and Guimar{\~a}es, J.T. and Lopes, C.M.S. and Medeiros, R.M.}
}
@article {2220,
	title = {Friction and wear behaviour of bacterial cellulose against articular cartilage},
	journal = {WearWear},
	volume = {271},
	year = {2011},
	note = {Export Date: 21 November 2012Source: ScopusCODEN: WEARAdoi: 10.1016/j.wear.2010.12.042Language of Original Document: EnglishCorrespondence Address: Gomes, J.R.; Department of Mechanical Engineering, University of Minho, Guimar{\~a}es, Portugal; email: jgomes@dem.uminho.ptReferences: Klemm, D., Schumann, D., Udhardt, U., Marsch, S., Bacterial synthesized cellulose-artificial blood vessels for microsurgery (2001) Prog. Polym. Sci., 26 (9), pp. 1561-1603;Vandamme, E.J., De Baets, S., Vanbaelen, A., Joris, K., De Wulf, P., Improved production of bacterial cellulose and its application potential (1998) Polym. Degrad. Stab., 59, pp. 93-99; 
Czaja, W., Krystynowicza, A., Bieleckia, S., Brown, R.M., Microbial cellulose - the natural power to heal wounds (2006) Biomaterials, 27, pp. 145-151; 
Mow, V.C., Ateshian, G.A., Lubrication and wear of diarthrodial joints (1997) Basic Orthopaedic Biomechanics, pp. 275-315. , Lippincott-Raven Publishers, Philadelphia, USA, V.C. Mow, W.C. Hayes (Eds.); 
Walker, P.S., Blunn, G.W., Biomechanical principles of total knee replacement design (1997) Basic Orthopaedic Biomechanics, pp. 461-493. , Lippincott-Raven Publishers, Philadelphia, USA, V.C. Mow, W.C. Hayes (Eds.); 
Mankin, H.J., The response of articular cartilage to mechanical injury (1982) J. Bone Joint Surg. Am., 64, pp. 460-466; 
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Kobayashi, M., A study of polyvinyl alcohol-hydrogel (PVA-H) artificial meniscus in vivo (2004) Bio-med. Mater. Eng., 14 (4), pp. 505-515; 
Kobayashi, M., Chang, Y.S., Oka, M., A two year in vivo study of polyvinyl alcohol hydrogel (PVA-H) artificial meniscus (2005) Biomaterials, 26 (16), pp. 3243-3248; 
Covert, R.J., Ott, R.D., Ku, D.N., Friction characteristics of a potential articular cartilage biomaterial (2003) Wear, 255, pp. 1064-1068; 
Ushio, K., Oka, M., Hyon, S.H., Hayami, T., Yura, S., Matsumura, K., Toguchida, J., Nakamura, T., Attachment of artificial cartilage to underlying bone (2004) J. Biomed. Mater. Res.: Part B - Appl. Biomater., 68 (1), pp. 59-68; 
Bodugoz-Senturk, H., Macias, C., Kung, J.H., Muratoglu, O., Poly(vinyl alcohol) - acrylamide hydrogels as load-bearing cartilage substitute (2009) Biomaterials, 30 (4), pp. 589-596; 
Bavaresco, V.P., Zavaglia, C.A.C., Reis, M.C., Gomes, J.R., Study on the tribological properties of pHEMA hydrogels for use in artificial articular cartilage (2008) Wear, 265, pp. 269-277; 
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Saarakkala, S., Laasanen, M.S., Jurvelin, J.S., Toyras, J., Quantitative ultrasound imaging detects degenerative changes in articular cartilage surface and subchondral bone (2006) Phys. Med. Biol., 51, pp. 5333-5346; 
Jurvelin, J.S., Muller, D.J., Wong, M., Studer, D., Engel, A., Hunziker, E.B., Surface and subsurface morphology of bovine humeral articular cartilage as assessed by atomic force and transmission electron microscopy (1996) J. Struct. Biol., 117, pp. 45-54; 
Crockett, R., Roos, S., Rossbach, P., Dora, C., Born, W., Troxler, H., Imaging of the surface of human and bovine articular cartilage with ESEM and AFM (2005) Tribol. Lett., 19 (4), pp. 311-317; 
Udofia, J.J., Jin, Z.M., Elastohydrodynamic lubrication analysis of metal-on-metal hip-resurfacing prostheses (2003) J. Biomech., 36, pp. 537-544; 
Pan, Y., Xiong, D., Friction properties of nano-hydroxyapatite reinforced poly(vinyl alcohol) gel composites as an articular cartilage (2009) Wear, 266, pp. 699-703; 
Merkher, Y., Sivan, S., Etsion, I., Maroudas, A., Halperin, G., Yosef, A., A rational human joint friction test using a human cartilage-on-cartilage arrangement (2006) Tribol. Lett., 22 (1), pp. 29-36; 
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},
	month = {2011///},
	pages = {2328 - 2333},
	abstract = {Bacterial cellulose (BC) is a natural and biocompatible material with unique properties, such as high water holding capacity, ultra-fine fibre network and high strength that makes it an attractive material for the repair of articular cartilage lesions. However, data on the tribological properties of BC is very scarce, particularly if natural articular cartilage is involved in the contact. In this work, unmodified BC pellicles were grown from Gluconacetobacter xylinus in order to be used as tribological samples against bovine articular cartilage (BAC) in the presence of phosphate buffered saline (PBS). The tribological assessment of the sliding pairs was accomplished using reciprocating pin-on-flat tests at 37{\textdegree}C. The reciprocating sliding frequency and stroke length were kept constant at 1Hz and 8mm, respectively. Contact pressures ranging from 0.80 to 2.40MPa were applied. The friction coefficient evolution was continuously monitored during the tests and the release of total carbohydrates into the lubricating solution was followed by means of the phenol-H                        2SO
                        4 method as an attempt to evaluate wear losses. The morphology of worn surfaces was characterized by SEM/EDS and the main wear mechanisms were identified. Low friction coefficient values (\~{}0.05) combined with the preservation of the mating surfaces (BC and BAC) indicate the potential of BC to be used as artificial cartilage for articular joints. {\textcopyright} 2011 Elsevier B.V.
},
	keywords = {Articular cartilage, Articular cartilages, Articular joints, Artificial cartilages, Bacterial cellulose, Bacteriology, Biocompatible Materials, Biological materials, Biotribology, Bovine articular cartilage, Carbohydrates, Cartilage, Cellulose, Contact pressures, Fibre network, Friction, Friction and wear, Friction coefficients, Gluconacetobacter xylinus, High strength, High water, Low friction coefficients, Mating surfaces, Phenols, Phosphate-buffered salines, Pin-on-flat, Reciprocating sliding, SEM/EDS, Stroke length, Total carbohydrates, Tribological properties, Tribology, Wear, Wear loss, Wear mechanisms, Worn surface},
	isbn = {00431648 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-79960657605\&partnerID=40\&md5=70f685f10e794e0146dfcea106d860e3},
	author = {Lopes, J.L. and Machado, J.M. and Castanheira, L. and Granja, P.L. and Gama, F.M. and Dourado, F. and Gomes, J.R.}
}
@article {2816,
	title = {Systemic delivery of bone marrow-derived mesenchymal stromal cells diminishes neuropathology in a mouse model of Krabbe{\textquoteright}s disease},
	journal = {Stem Cells},
	volume = {29},
	year = {2011},
	note = {Cited By (since 1996):4Export Date: 2 October 2013Source: Scopus},
	month = {2011///},
	pages = {1738 - 1751},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-80054957115\&partnerID=40\&md5=460f6b3c9735980171039cf772450e6f},
	author = {Miranda, C.O. and Teixeira, C.A. and Liz, M.A. and Sousa, V.F. and Franquinho, F. and Forte, G. and Di Nardo, P. and Pinto-Do-{\'O}, P. and Sousa, M.M.}
}
@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},
	note = {Cited By (since 1996): 1Export Date: 21 November 2012Source: ScopusCODEN: MEPHEdoi: 10.1016/j.medengphy.2010.04.018PubMed ID: 20547091Language of Original Document: EnglishCorrespondence Address: Gon{\c c}alves, H.; Departamento de Geoci{\^e}ncias, Ambiente e Ordenamento do Territ{\'o}rio, Faculdade de Ci{\^e}ncias, Universidade do Porto, Rua do Campo Alegre 687, 4169-007 Porto, Portugal; email: hernani.goncalves@fc.up.ptChemicals/CAS: monocrotaline, 315-22-0, 8051-27-2; Ketamine, 6740-88-1; Monocrotaline, 315-22-0References: (2005), ACOG, American College of Obstetricians and Gynecologists. ACOG Practice Bulletin. Clinical Management Guidelines for Obstetrician-Gynecologists, Number 70, December 2005. Obstet Gynecol 106(6):1453-60Akhavein, F., St.-Michel, E.J., Seifert, E., Rohlicek, C.V., Decreased left ventricular function, myocarditis, and coronary arteriolar medial thickening following monocrotaline administration in adult rats (2007) J Appl Physiol, 103 (1), pp. 287-295;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. H2560-H2570; 
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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 {2277,
	title = {Biocompatibility and calcification of bovine pericardium employed for the construction of cardiac bioprostheses treated with different chemical crosslink methods},
	journal = {Artificial OrgansArtif. Organs},
	volume = {34},
	year = {2010},
	note = {Cited By (since 1996): 4Export Date: 21 November 2012Source: ScopusCODEN: ARORDdoi: 10.1111/j.1525-1594.2009.00978.xPubMed ID: 20633147Language of Original Document: EnglishCorrespondence Address: Jorge-Herrero, E.; Biomateriales y Telemedicina, Hospital Universitario Puerta de Hierro Majadahonda, Peine 7, planta 0, c/ Manuel de Falla 2, 28222Majadahonda, Madrid, Spain; email: ejorge.herrero@bioing.cph.esChemicals/CAS: calcium, 14092-94-5, 7440-70-2; glutaraldehyde, 111-30-8, 37245-61-7; Calcium, 7440-70-2; Cross-Linking Reagents; Glutaral, 111-30-8References: Grunkemeier, G.L., Rahimtoola, S.H., Artificial heart valves (1990) Annu Rev Med, 41, pp. 251-263;Vongpatanasin, W., Hillis, L.D., Lange, R.A., Prosthetic heart valves (1996) N Engl J Med, 335, pp. 407-416; 
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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 {2266,
	title = {An improved collagen scaffold for skeletal regeneration},
	journal = {Journal of Biomedical Materials Research - Part AJ. Biomed. Mater. Res. Part A},
	volume = {94},
	year = {2010},
	note = {Cited By (since 1996): 4Export Date: 21 November 2012Source: ScopusCODEN: JBMRCdoi: 10.1002/jbm.a.32694PubMed ID: 20186736Language of Original Document: EnglishCorrespondence Address: Teixeira, C. C.; Department of Basic Science and Craniofacial Biology, Department of Biomaterials and Biomimetics, New York University College of Dentistry, New York, NY 10010, United States; email: ct40@nyu.eduChemicals/CAS: alkaline phosphatase, 9001-78-9; retinoic acid, 302-79-4; Biocompatible Materials; Collagen, 9007-34-5; Protein IsoformsReferences: Pountos, I., Jones, E., Tzioupis, C., Mcgonagle, D., Giannoudis, P.V., Growing bone and cartilage. The role of mesenchymal stem cells (2006) J Bone Joint Surg Br, 88, pp. 421-426;Newman, A.P., Articular cartilage repair (1998) Am J Sports Med, 26, pp. 309-324; 
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},
	month = {2010///},
	pages = {371 - 379},
	abstract = {Bone repair and regeneration is one of the most extensively studied areas in the field of tissue engineering. All of the current tissue engineering approaches to create bone focus on intramembranous ossification, ignoring the other mechanism of bone formation, endochondral ossification. We propose to create a transient cartilage template in vitro, which could serve as an intermediate for bone formation by the endochondral mechanism once implanted in vivo. The goals of the study are (1) to prepare and characterize type I collagen sponges as a scaffold for the cartilage template, and (2) to establish a method of culturing chondrocytes in type I collagen sponges and induce cell maturation. Collagen sponges were generated from a 1\% solution of type I collagen using a freeze/dry technique followed by UV light crosslinking. Chondrocytes isolated from two locations in chick embryo sterna were cultured in these sponges and treated with retinoic acid to induce chondrocyte maturation and extracellular matrix deposition. Material strength testing as well as microscopic and biochemical analyzes were conducted to evaluate the properties of sponges and cell behavior during the culture period. We found that our collagen sponges presented improved stiffness and supported chondrocyte attachment and proliferation. Cells underwent maturation, depositing an abundant extracellular matrix throughout the scaffold, expressing high levels of type X collagen, type I collagen and alkaline phosphatase. These results demonstrate that we have created a transient cartilage template with potential to direct endochondral bone formation after implantation. {\textcopyright} 2010 Wiley Periodicals, Inc.},
	keywords = {alkaline phosphatase, animal cell, animal tissue, Animals, article, Biocompatible Materials, Body fluids, Bone, Bone and Bones, Bone Regeneration, Cartilage, cartilage cell, Cattle, Cell culture, cell maturation, chick embryo, Chondrocytes, Collagen, collagen implant, collagen type 1, collagen type 10, Compressive Strength, controlled study, embryo, enchondral ossification, Endochondral ossification, extracellular matrix, freeze drying, Humans, immunohistochemistry, Ligaments, materials testing, Microscopy, Electron, Scanning, nonhuman, Phosphatases, protein cross linking, Protein Isoforms, retinoic acid, Scaffolds, Scanning electron microscopy, Stress, Mechanical, Tissue engineering, tissue scaffold, Type I collagen, Type X collagen, Ultraviolet radiation},
	isbn = {15493296 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-77953822519\&partnerID=40\&md5=b16072278467a72588546ba56f337cc0},
	author = {Oliveira, S.M. and Ringshia, R.A. and Legeros, R.Z. and Clark, E. and Yost, M.J. and Terracio, L. and Teixeira, C.C.}
}
@article {2276,
	title = {In vivo evaluation of highly macroporous ceramic scaffolds for bone tissue engineering},
	journal = {Journal of Biomedical Materials Research - Part AJ. Biomed. Mater. Res. Part A},
	volume = {93},
	year = {2010},
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},
	month = {2010///},
	pages = {567 - 575},
	abstract = {During the last decades, different materials of both natural and synthetic origin have been developed with the aim of inducing and controlling osteogenic differentiation of mesenchymal stem cells (MSCs). In order for that to happen, it is necessary that the material to be implanted obey a series of requirements, namely: osteoconduction, biocompatibility, and biodegradability. Additionally, they must be low-priced, easy to produce, shape, and store. Hydroxyapatite (HA) is a well known ceramic with a composition similar to the mineral component of bone and is highly biocompatible and easy to obtain and/or process. On the other hand, collagen is the main structural protein present in the human body and bone. In this study, a polymer replication method was applied and a highly porous HA scaffold was produced. Collagen was later incorporated to improve the biological properties of the scaffold while resembling the bone composition. The scaffolds were characterized by means of scanning electron microscopy, Fourier transform infrared spectroscopy and energy dispersive spectroscopy. In vitro and in vivo testing was performed in all scaffolds produced. The goal of this study was to evaluate the in vivo osteogenic potential of MSCs from two different species seeded on the different HA based porous scaffolds with collagen type I. The results indicate that all scaffolds exhibit relevant bone formation, being more prominent in the case of the HA scaffolds. {\textcopyright} 2009 Wiley Periodicals, Inc.},
	keywords = {animal cell, animal experiment, animal model, Animals, article, Biocompatibility, Biocompatible Materials, Biodegradation, Bone, Bone and Bones, Bone formation, bone tissue, Calcium, Calcium alloys, calcium phosphate, Calcium phosphates, Cell Count, Cell culture, Cell Culture Techniques, Cells, Cultured, cellular distribution, Ceramic materials, ceramics, Collagen, collagen type 1, Durapatite, Energy dispersive spectroscopy, Flowcharting, Fourier transform infrared spectroscopy, Humans, hydroxyapatite, Hydroxylation, in vitro study, In vivo bone formation, in vivo study, In-vivo, infrared spectroscopy, Macroporous, Macroporous scaffolds, male, materials testing, Mesenchymal stem cell, Mesenchymal Stem Cells, Mice, Microscopy, Electron, Scanning, nonhuman, ossification, Osteogenesis, porous polymer, rat, Rats, Rats, Wistar, Scaffolds, Scanning electron microscopy, Spectroscopy, Fourier Transform Infrared, Stem cells, Tissue engineering, tissue scaffold, Tissue Scaffolds},
	isbn = {15493296 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-77950190285\&partnerID=40\&md5=612e26b56020935c7b0b1c564bffa89a},
	author = {Teixeira, S. and Fernandes, H. and Leusink, A. and Van Blitterswijk, C. and Ferraz, M.P. and Monteiro, F.J. and De Boer, J.}
}
@article {2245,
	title = {Innovative macroporous granules of nanostructured-hydroxyapatite agglomerates: Bioactivity and osteoblast-like cell behaviour},
	journal = {Journal of Biomedical Materials Research - Part AJ. Biomed. Mater. Res. Part A},
	volume = {95},
	year = {2010},
	note = {Cited By (since 1996): 3Export Date: 21 November 2012Source: ScopusCODEN: JBMRCdoi: 10.1002/jbm.a.32916PubMed ID: 20845490Language of Original Document: EnglishCorrespondence Address: Laranjeira, M. S.; Divis{\~a}o de Biomateriais, INEB-Instituto de Engenharia Biom{\'e}dica, Universidade Do Porto, Rua do Campo Alegre, 823, 4150-180 Porto, Portugal; email: dce06004@fe.up.ptChemicals/CAS: alkaline phosphatase, 9001-78-9; colony stimulating factor 1, 81627-83-0; hydroxyapatite, 1306-06-5, 51198-94-8; osteoprotegerin, 205944-50-9; polyurethan, 61789-63-7; Biocompatible Materials; Biological Markers; Durapatite, 1306-06-5; PolyurethanesReferences: Ferraz, M., Monteiro, F., Manuel, C., Hydroxyapatite nanoparticles: A review of preparation methodologies (2004) J Appl Biomater Biomech, 2, pp. 74-80;Murugan, R., Ramakrishna, S., Development of nanocomposites for bone grafting (2005) Compos Sci Technol, 65, pp. 2385-2406; 
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Mendon{\c c}a, G., Mendon{\c c}a, D.B., Sim{\~o}es, L.G., Ara{\'u}jo, A.L., Leite, E.R., Duarte, W.R., Arag{\~a}o, F.J., Cooper, L.F., The effects of implant surface nanoscale features on osteoblast-specific gene expression (2009) Biomaterials, 30, pp. 4053-4062
},
	month = {2010///},
	pages = {891 - 900},
	abstract = {To modulate the biological response of implantable granules, two types of bioactive porous granules composed of nanostructured-hydroxyapatite (HA) agglomerates and microstructured-HA, respectively, were prepared using a polyurethane sponge impregnation and burnout method. The resulting granules presented a highly porous structure with interconnected porosity. Both types of granules were characterized using Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), and mercury intrusion porosimetry. Results showed that nanostructed-HA granules presented higher surface area and porosity than microstructured-HA granules. In vitro testing using MG63 human osteoblast-like cells showed that on both types of surfaces cells were able to adhere, proliferate, and migrate through the macropores, and a higher growth rate was achieved on nanostructured-HA granules than on microstructured-HA granules (76 and 40\%, respectively). In addition, these cells maintained similar expression levels of osteoblastic-associated markers namely collagen type I, alkaline phosphatase, bone morphogenetic protein-2, macrophage colony-stimulating factor, and osteoprotegerin. These innovative nanostructured-HA granules may be considered as promising bioceramic alternative matrixes for bone regeneration and drug release application. {\textcopyright} 2010 Wiley Periodicals, Inc.},
	keywords = {Agglomeration, alkaline phosphatase, Apatite, article, Bioceramics, Biocompatible Materials, Biological Markers, Biological materials, Biological response, Biomaterials, Bone, bone morphogenetic protein 2, Bone morphogenetic protein-2, Bone Regeneration, cell adhesion, cell function, cell granule, cell migration, cell proliferation, Cells, Cultured, collagen type 1, Collagen type I, colony stimulating factor 1, Colony-stimulating factor, drug activity, Drug release, Durapatite, Expression levels, Fourier transform infrared spectroscopy, Fourier transforms, Granulation, Granules, growth rate, human, human cell, Human osteoblast-like cells, Humans, hydroxyapatite, In-vitro, infrared spectroscopy, Interconnected porosity, Macro-porosity, Macropores, Macroporosity, Macroporous, materials testing, matrix, Mercury (metal), Mercury intrusion porosimetry, Microscopy, Electron, Scanning, Microstructured, Nano-materials, Nano-structured, nanomaterial, Nanomaterials, Nanostructured materials, Nanostructures, osteoblast, Osteoblast response, Osteoblast-like cells, Osteoblasts, Osteoprotegerin, Phosphatases, polyurethan, Polyurethane sponge, Polyurethanes, porosity, Porous structures, Reverse Transcriptase Polymerase Chain Reaction, Scanning electron microscopy, SEM, Spectroscopy, Fourier Transform Infrared, Surface area, surface property, X ray diffraction, X-Ray Diffraction},
	isbn = {15493296 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-78249252998\&partnerID=40\&md5=09d51d6c49d9f10e6c2d479b1fe4ace0},
	author = {Laranjeira, M.S. and Fernandes, M.H. and Monteiro, F.J.}
}
@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},
	note = {Cited By (since 1996): 3Export Date: 21 November 2012Source: ScopusCODEN: MEPHEdoi: 10.1016/j.medengphy.2010.04.015PubMed ID: 20494606Language of Original Document: EnglishCorrespondence Address: Bastos, L.F.; Instituto de Engenharia Biom{\'e}dica, Divis{\~a}o de Sinal e Imagem, Rua Dr. Roberto Frias, s/n, I302, 4200-465 Porto, Portugal; email: lbastos@fe.up.ptReferences: Carlin, A., Alfirevic, Z., Intrapartum foetal emergencies (2006) Semin Foetal Neonatal Med, 11, pp. 150-157;Draycott, T., Sibanda, T., Owen, L., Akande, V., Winter, C., Reading, S., Does training in obstetric emergencies improve neonatal outcome? (2006) BJOG, 113, pp. 177-182; 
Daniels, K., Lipman, S., Harney, K., Arafeh, J., Druzin, M., Use of simulation based team training for obstetric crises in resident education (2008) Simul Healthc, 3, pp. 154-160; 
Gardner, R., Walzer, T.B., Simon, R., Raemer, D.B., Obstetric simulation as a risk control strategy: course design and evaluation (2008) Simul Healthc, 3, pp. 119-127; 
Pliego, J.F., Wehbe-Janek, H., Rajab, M.H., Browning, J.L., Fothergill, R.E., Ob/Gyn boot camp using high-fidelity human simulators: enhancing residents{\textquoteright} perceived competency, confidence in taking a leadership role, and stress hardiness (2008) Simul Healthc, 3, pp. 82-89; 
Crofts, J.F., Bartlett, C., Ellis, D., Hunt, L.P., Fox, R., Draycott, T.J., Training for shoulder dystocia: a trial of simulation using low-fidelity and high-fidelity mannequins (2006) Obstet Gynecol (New York, 1953), 108, pp. 1477-1485; 
Gardner, R., Raemer, D.B., Simulation in obstetrics and gynecology (2008) Obstet Gynecol Clin North Am, 35, pp. 97-127; 
(2001) The use of electronic foetal monitoring: the use and interpretation of cardiotocography in intrapartum foetal surveillance, , Royal-College-of-Obstetricians-and-Gynaecologists, RCOG, London; 
(2006) Intrapartum foetal surveillance: clinical guidelines, , Royal-Australian-and-New-Zealand-College-of-Obstetricians-and-Gynaecologists, RANZCOG, Melbourne; 
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},
	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.}
}
@article {2258,
	title = {Neuropeptide y and osteoblast differentiation - The balance between the neuro-osteogenic network and local control: Review Article},
	journal = {FEBS JournalFEBS J.},
	volume = {277},
	year = {2010},
	note = {Cited By (since 1996): 5Export Date: 21 November 2012Source: Scopusdoi: 10.1111/j.1742-4658.2010.07774.xPubMed ID: 20681986Language of Original Document: EnglishCorrespondence Address: Sousa, M. M.; IBMC, Rua Campo Alegre 823, 4150-180 Porto, Portugal; email: msousa@ibmc.up.ptChemicals/CAS: neuropeptide Y, 82785-45-3, 83589-17-7; Leptin; Neuropeptide Y; Protein Isoforms; Receptors, Neuropeptide YReferences: Bellido, T., Ali, A.A., Gubrij, I., Plotkin, L.I., Fu, Q., O{\textquoteright}Brien, C.A., Manolagas, S.C., Jilka, R.L., Chronic elevation of parathyroid hormone in mice reduces expression of sclerostin by osteocytes: A novel mechanism for hormonal control of osteoblastogenesis (2005) Endocrinology, 146, pp. 4577-4583;Keller, H., Kneissel, M., SOST is a target gene for PTH in bone (2005) Bone, 37, pp. 148-158; 
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},
	month = {2010///},
	pages = {3664 - 3674},
	abstract = {Accumulating evidence has contributed to a novel view in bone biology: bone remodeling, specifically osteoblast differentiation, is under the tight control of the central and peripheral nervous systems. Among other players in this neuro-osteogenic network, the neuropeptide Y (NPY) system has attracted particular attention. At the central nervous system level, NPY exerts its function in bone homeostasis through the hypothalamic Y2 receptor. Locally in the bone, NPY action is mediated by its Y1 receptor. Besides the presence of Y1, a complex network exists locally: not only there is input of the peripheral nervous system, as the bone is directly innervated by NPY-containing fibers, but there is also input from non-neuronal cells, including bone cells capable of NPY expression. The interaction of these distinct players to achieve a multilevel control system of bone homeostasis is still under debate. In this review, we will integrate the current knowledge on the impact of the NPY system in bone biology, and discuss the mechanisms through which the balance between central and the peripheral NPY action might be achieved. {\textcopyright} 2010 FEBS.},
	keywords = {Animals, Bone and Bones, bone cell, bone innervation, bone mass, cell differentiation, Homeostasis, Humans, immunoreactivity, leptin, Nerve Net, neuropeptide Y, neuropeptide Y receptor, neuropeptide Y2 receptor, nonhuman, NPY, NPY receptors, osteoblast, Osteoblasts, phenotype, priority journal, protein expression, protein interaction, Protein Isoforms, Receptors, Neuropeptide Y, review},
	isbn = {1742464X (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-77956337408\&partnerID=40\&md5=2d7cd3f7e81e95ea895958fff6902b28},
	author = {Franquinho, F. and Liz, M.A. and Nunes, A.F. and Neto, E. and Lamghari, M. and Sousa, M.M.}
}
@article {2289,
	title = {Neuropeptide y expression and function during osteoblast differentiation - Insights from transthyretin knockout mice},
	journal = {FEBS JournalFEBS J.},
	volume = {277},
	year = {2010},
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Marques, F., Sousa, J.C., Oliveira, P., Oliveira, H.C., Palha, J.A., The absence of transthyretin does not impair regulation of lipid and glucose metabolism (2007) Horm Metab Res, 39, pp. 529-533; 
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},
	month = {2010///},
	pages = {263 - 275},
	abstract = {To better understand the role of neuropeptide Y (NPY) in bone homeostasis, as its function in the regulation of bone mass is unclear, we assessed its expression in this tissue. By immunohistochemistry, we demonstrated, both at embryonic stages and in the adult, that NPY is synthesized by osteoblasts, osteocytes, and chondrocytes. Moreover, peptidylglycine α-amidating monooxygenase, the enzyme responsible for NPY activation by amidation, was also expressed in these cell types. Using transthyretin (TTR) KO mice as a model of augmented NPY levels, we showed that this strain has increased NPY content in the bone, further validating the expression of this neuropeptide by bone cells. Moreover, the higher amidated neuropeptide levels in TTR KO mice were related to increased bone mineral density and trabecular volume. Additionally, RT-PCR analysis established that NPY is not only expressed in MC3T3-E1 osteoblastic cells and bone marrow stromal cells (BMSCs), but is also detectable by RIA in BMSCs undergoing osteoblastic differentiation. In agreement with our in vivo observations, in vitro, TTR KO BMSCs differentiated in osteoblasts had increased NPY levels and exhibited enhanced competence in undergoing osteoblastic differentiation. In summary, this work contributes to a better understanding of the role of NPY in the regulation of bone formation by showing that this neuropeptide is expressed in bone cells and that increased amidated neuropeptide content is related to increased bone mass. {\textcopyright} 2009 FEBS.},
	keywords = {3T3 Cells, alpha amidating enzyme, Amidated neuropeptide, amidation, Amides, animal cell, animal tissue, Animals, article, Base Sequence, Bone Density, bone development, bone marrow cell, Bone Marrow Cells, Bone marrow stromal cells, bone mass, cartilage cell, cell differentiation, Cells, Cultured, Chondrocytes, controlled study, developmental stage, DNA Primers, embryo, embryo development, Homeostasis, immunohistochemistry, male, Mice, Mice, Knockout, mouse, Mus, neuropeptide Y, nonhuman, NPY, ossification, osteoblast, Osteoblastic differentiation, Osteoblasts, osteocyte, Osteocytes, peptide synthesis, prealbumin, priority journal, protein expression, protein function, radioimmunoassay, regulatory mechanism, reverse transcription polymerase chain reaction, RNA, Messenger, stroma cell, Stromal Cells, trabecular bone},
	isbn = {1742464X (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-73649127668\&partnerID=40\&md5=c25c87a8e1206fc9d2b878f9611581dd},
	author = {Nunes, A.F. and Liz, M.A. and Franquinho, F. and Teixeira, L. and Sousa, V. and Chenu, C. and Lamghari, M. and Sousa, M.M.}
}
@article {2254,
	title = {Protein matrices for improved wound healing: Elastase inhibition by a synthetic peptide model},
	journal = {BiomacromoleculesBiomacromolecules},
	volume = {11},
	year = {2010},
	note = {Cited By (since 1996): 3Export Date: 21 November 2012Source: ScopusCODEN: BOMAFdoi: 10.1021/bm100537bPubMed ID: 20690591Language of Original Document: EnglishCorrespondence Address: Vasconcelos, A.; Universidade Do Minho, Departamento de Engenharia T{\^e}xtil, Campus de Azur{\'e}m, 4800-058 Guimar{\~a}es, Portugal; email: andreiav@det.uminho.ptChemicals/CAS: Bowman Birk inhibitor, 37330-34-0; Fibroins, 9007-76-5; Keratins, 68238-35-7; Pancreatic Elastase, 3.4.21.36; Peptide Fragments; Trypsin Inhibitor, Bowman-Birk Soybean; Trypsin Inhibitors; fibroin, silkwormReferences: Boateng, J.S., Matthews, K.H., Stevens, H.N.E., Eccleston, G.M., Wound healing dressings and drug delivery systems: A review (2008) J. Pharm. Sci., 97, pp. 2892-2923;Rothe, M., Falanga, V., Growth factors: Their biology and promise in dermatologic diseases and tissue repair (1989) AMA Arch. Dermatol., 125, pp. 1390-1398; 
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Gariani, T., McBride, J.D., Leatherbarrow, R.J., The role of the P2' position of Bowman-Birk proteinase inhibitor in the inhibition of trypsin: Studies on P2' variation in cyclic peptides encompassing the reactive site loop (1999) Biochim. Biophys. Acta, Protein Struct. Mol. Enzymol., 1431, pp. 232-237; 
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},
	month = {2010///},
	pages = {2213 - 2220},
	abstract = {The unique properties of silk fibroin were combined with keratin to develop new wound-dressing materials. Silk fibroin/keratin (SF/K) films were prepared to reduce high levels of elastase found on chronic wounds. This improved biological function was achieved by the incorporation of a small peptide synthesized based on the reactive-site loop of the Bowman-Birk Inhibitor (BBI) protein. In vitro degradation and release were evaluated using porcine pancreatic elastase (PPE) solution as a model of wound exudate. It was found that biological degradation and release rate are highly dependent on film composition. Furthermore, the level of PPE activity can be tuned by changing the film composition, thus showing an innovative way of controlling the elastase-antielastase imbalance found on chronic wounds. {\textcopyright} 2010 American Chemical Society.},
	keywords = {animal cell, Animals, article, Atomic force microscopy, Biodegradation, Biological degradation, Biological functions, biomaterial, Bombyx, Bowman Birk inhibitor, Bowman-Birk inhibitors, cell proliferation, Chronic wounds, controlled study, Cytotoxicity test, Degradation, Elastase, elastase inhibitor, enzyme activity, Enzyme inhibition, Fibroins, Film composition, In-vitro, keratin, Keratins, mass spectrometry, materials testing, Mice, Microscopy, Atomic Force, NIH 3T3 Cells, nonhuman, pancreatic elastase, Peptide Fragments, Peptides, priority journal, protein binding, Protein matrices, Release rate, Silk, Silk fibroin, Spectrometry, Mass, Electrospray Ionization, Sus, Swine, Synthetic peptide, Trypsin Inhibitor, Bowman-Birk Soybean, Trypsin Inhibitors, wound fluid, Wound healing},
	isbn = {15257797 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-77956552375\&partnerID=40\&md5=7d7dc9145b9655d9ba0461eb7a85d118},
	author = {Vasconcelos, A. and P{\^e}go, A.P. and Henriques, L. and Lamghari, M. and Cavaco-Paulo, A.}
}
@article {2321,
	title = {Cytotoxicity evaluation of nanocrystalline diamond coatings by fibroblast cell cultures},
	journal = {Acta BiomaterialiaActa Biomater.},
	volume = {5},
	year = {2009},
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},
	month = {2009///},
	pages = {755 - 763},
	abstract = {The cytotoxicity profile of nanocrystalline diamond (NCD) coatings on a Si                        3N
                        4 ceramic was investigated. This material is envisaged to have biomedical dental applications such as burrs and surgical instruments. Two fibroblast cell culture systems were used to address the cytotoxicity of NCD-coated samples: L929 cells (a mouse permanent cell line) and human gingival fibroblasts. Cell behavior was evaluated in terms of cell adhesion, cell viability/proliferation (mitochondrial function, MTT assay) and the pattern of cell growth. Fibroblast cell behavior on standard polystyrene culture plates was used as control, as Si
                        3N
                        4 substrates have previously been shown to be biocompatible. NCD coatings provided a suitable surface for cell attachment, spreading and proliferation. Human gingival cells showed a homogeneous cytoplasm spreading, a flattened elongated morphology and a typical parallel alignment on confluent cultures. In comparison, L929 cells denoted a lower cytoplasm expansion, a heterogeneous spreading but a higher proliferation rate. For both cells, after few days, the NCD coating was completely covered with continuous cell layers. As compared to standard polystyrene culture plates, no deleterious or cytotoxic responses were observed with L929 and human fibroblast cell cultures, and in both a slight enhancement in cell proliferation was observed. In addition, the seeded NCD film allowed reproduction of the typical features of the two cell culture systems tested, further suggesting the lack of cytotoxicity of this coating. {\textcopyright} 2008 Acta Materialia Inc.
},
	keywords = {3 (4,5 dimethyl 2 thiazolyl) 2,5 diphenyltetrazolium bromide, animal cell, Animals, article, Biocompatibility, Biomedical dental applications, biomedicine, cell adhesion, Cell Division, cell function, cell growth, Cell Line, cell proliferation, cell spreading, cell structure, cell surface, cell survival, cell viability, ceramics, controlled study, Culture Media, cytoplasm, Cytotoxicity, dentistry, diamond, Fibroblast cell cultures, fibroblast culture, Fibroblasts, gingiva, human, human cell, Humans, material coating, Mice, Microscopy, Electron, Scanning, mitochondrial respiration, mouse, nanocrystal, Nanocrystalline diamond coating, Nanostructures, nonhuman, polystyrene, priority journal, Silicon nitride, Surgical instrument},
	isbn = {17427061 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-58049191417\&partnerID=40\&md5=f75616146e61ce84434c5481a2b8eec3},
	author = {Amaral, M. and Gomes, P.S. and Lopes, M.A. and Santos, J.D. and Silva, R.F. and Fernandes, M.H.}
}
@article {2310,
	title = {In vitro biological characterization of macroporous 3D Bonelike                    {\textregistered} structures prepared through a 3D machining technique
},
	journal = {Materials Science and Engineering CMater. Sci. Eng. C},
	volume = {29},
	year = {2009},
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},
	month = {2009///},
	pages = {930 - 935},
	abstract = {3D bioactive macroporous structures were prepared using a 3D machining technique. A virtual 3D structure model was created and a computer numerically controlled (CNC) milling device machined Bonelike                        {\textregistered} samples. The resulting structures showed a reproducible macroporosity and interconnective structure. Macropores size after sintering was approximately 2000~μm. In vitro testing using human bone marrow stroma showed that cells were able to adhere and proliferate on 3D structures surface and migrate into all macropore channels. In addition, these cells were able to differentiate, since mineralized globular structures associated with cell layer were identified. Results obtained showed that 3D structures of Bonelike
                        {\textregistered} successfully allow cell migration into all macropores, and allow human bone marrow stromal cells to proliferate and differentiate. This innovative technique may be considered as a step-forward preparation for 3D interconnective macroporous structures that allow bone ingrowth while maintaining mechanical integrity. {\textcopyright} 2008 Elsevier B.V. All rights reserved.
},
	keywords = {3-D structures, 3D machining techniques, Biological characterizations, Bone, Bone ingrowths, Bone marrow stroma cells, Bone substitute, Bonelike, Cell layers, Cell migrations, Computer control systems, cytology, Globular structures, Human bone marrow stromal cells, Human bone marrows, In-vitro, Machining, Macro porosities, Macro-pores, Macroporous, Macroporous structures, Mechanical integrities, Porous materials, Sintering, Surface testing, Three dimensional, {\textregistered}},
	isbn = {09284931 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-64749093404\&partnerID=40\&md5=1619bc1101d98c34c6e43726f52e851c},
	author = {Laranjeira, M.S. and Dias, A.G. and Santos, J.D. and Fernandes, M.H.}
}
@article {2293,
	title = {Neural cell growth on TiO                    2 anatase nanostructured surfaces
},
	journal = {Thin Solid FilmsThin Solid Films},
	volume = {518},
	year = {2009},
	note = {Cited By (since 1996): 9Export Date: 21 November 2012Source: ScopusCODEN: THSFAdoi: 10.1016/j.tsf.2009.06.048Language of Original Document: EnglishCorrespondence Address: Casa{\~n}-Pastor, N.; Instituto de Ciencias de Materiales de Barcelona, CSIC, Campus la Universidad Autonoma Barcelona, E-08193 Barcelona, Spain; email: nieves@icmab.esReferences: Suzuki, R., Frangos, J.{\'A}., (2000) Clin. Orthop. Relat. Res., 372, p. 280;Suzuki, R., Muyco, J., McKittrick, J., Frangos, J.A., (2003) J. Biomed. Mater. Res. A, 66, p. 396; 
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},
	month = {2009///},
	pages = {160 - 170},
	abstract = {Titanium oxides have anti-inflammatory activity and tunable electrochemical properties that make them attractive materials for biomedical applications. This work investigated the compatibility of nanometric coatings of low-temperature phases of TiO                        2 with neurons in 4-day and 10-day cultures, using different cell densities to quantify cell survival and neurite extension. TiO
                        2 films were prepared by sol-gel and thermal treatment (250-450~{\textdegree}C) of hydrolyzed titanium tetra-isopropoxide on electrically conducting or insulating slides. The conducting substrates were not passivated by the nanometric oxide layer and could be used as electrodes. Characterization of the films showed nano-structured TiO
                        2 containing exclusively Ti
                        +4 valence in anatase and amorphous phases. When coated with polylysine, all films permitted good neuron attachment and survival for at least ten days in culture. However, they generally reduced neurite growth compared to cell culture borosilicate glass, with dendrites more affected than axons. The analyses of surface topography, hydrophilicity, charge and chemical composition revealed that TiO
                        2 chemistry was the main factor responsible for neurite inhibition. {\textcopyright} 2009 Elsevier B.V. All rights reserved.
},
	keywords = {Amorphous phasis, Anatase, Anti-inflammatory activity, Biomedical applications, Borosilicate glass, Cell culture, cell density, Cell membranes, cell survival, Chemical compositions, Coatings, Conducting substrates, Conductive films, Electrochemical properties, Gelation, Growth kinetics, Heat treatment, Iso-propoxide, Low temperature phasis, Nano-structured, Nanometrics, Nanostructured surface, Nanostructures, Neural cell, Neural cells, Neurite extension, Neurite growth, Neurites, Neurons, Oxide layer, polylysine, Surface topography, Thermal treatment, TiO, Titanium, Titanium dioxide, Titanium oxide, Titanium oxides},
	isbn = {00406090 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-69649101935\&partnerID=40\&md5=08dd6874d6b2e9bbe7310add08057bc7},
	author = {Collazos-Castro, J.E. and Cruz, A.M. and Carballo-Vila, M. and Lira-Cant{\'u}, M. and Abad, L. and del Pino, {\'A}.P. and Fraxedas, J. and San Juan, A. and Fonseca, C. and P{\^e}go, A.P. and Casa{\~n}-Pastor, N.}
}
@article {2303,
	title = {NPY revealed as a critical modulator of osteoblast function in vitro: New insights into the role of Y1 and Y2 receptors},
	journal = {Journal of Cellular BiochemistryJ. Cell. Biochem.},
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	year = {2009},
	note = {Cited By (since 1996): 12Export Date: 21 November 2012Source: ScopusCODEN: JCEBDdoi: 10.1002/jcb.22194PubMed ID: 19459152Language of Original Document: EnglishCorrespondence Address: Lamghari, M.; Instituto de Engenharia Biom{\'e}dica (INEB), Divis{\~a}o de Biomateriais, Universidade do Porto, Rua do Campo Alegre, 823, 4150-180 Porto, Portugal; email: lamghari@ineb.up.ptChemicals/CAS: calcium, 14092-94-5, 7440-70-2; osteoclast differentiation factor, 200145-93-3; osteoprotegerin, 205944-50-9; Alkaline Phosphatase, 3.1.3.1; Neuropeptide Y; Osteoprotegerin; RANK Ligand; Receptors, Neuropeptide YReferences: Ahmed, M., Srinivasan, G.R., Theodorsson, E., Bjurholm, A., Kreicbergs, A., Extraction and quantitation of neuropeptides in bone by radioimmunoassay (1994) Regul Pept, 51, pp. 179-188;Allison, S.J., Herzog, H., NPY and bone (2006) EXS, 95, pp. 171-182; 
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},
	month = {2009///},
	pages = {908 - 916},
	abstract = {Neuropeptide Y (NPY) has recently emerged as a potential regulator of bone homeostasis. However, the relevance of NPY{\textquoteright}s role in osteoblast activity and the biological functions involving NPY receptors in bone homeostasis remain to be clarified. Here we report that chronically elevated NPY levels leaded to a modulation of the level of Y2 receptor expression marked with a transient down and upregulation according to the stage of osteoblast differentiation. We also show that NPY is a negative regulator of Y1 receptor expression. The pharmalogical activation of Y2 receptor with its agonist resulted in similar effect. Functional analysis also revealed the osteogenic potential of NPY with osteoblast phenotype markers being significantly enhanced in osteoprogenitor cells stimulated by NPY, probably due to the down-regulation of Y1 receptor. In contrasts, these cells exhibit a reduction in calcium deposition in extracellular matrix most likely mediated via Y2 receptor signalling. Furthermore, we show that NPY modulates receptor activator of nuclear factor kB (NF-kB) (RANK) ligand and osteoprotegerin, two key factors regulating bone remodelling. Specifically, NPY inhibits the transcriptional activity of RANKL promoter in osteoprogenitor cells and enhances OPG expression in osteoblasts at early stages of differentiation. However, NPY effect on OPG seemed to be unrelated to Y2 receptor activation. Taken together the present data supported the contribution of NPY pathway in bone homeostasis via a direct action on osteoblasts cells. {\textcopyright} 2009 Wiley-Liss, Inc.},
	keywords = {alkaline phosphatase, animal cell, animal tissue, Animals, article, Bone, Bone Marrow Cells, bone remodeling, Calcium, cell activity, cell differentiation, cell function, Cell Line, cell stimulation, controlled study, down regulation, extracellular matrix, gene expression regulation, genetic transcription, Homeostasis, immunoglobulin enhancer binding protein, in vitro study, Mice, neuropeptide Y, neuropeptide Y1 receptor, neuropeptide Y2 receptor, nonhuman, NPY, nuclear factor Y, osteoblast, Osteoblasts, osteoclast differentiation factor, Osteoprotegerin, phenotype, priority journal, promoter region, protein expression, RANK Ligand, Receptors, Neuropeptide Y, Reverse Transcriptase Polymerase Chain Reaction, signal transduction, stem cell, Stromal Cells, upregulation, Y1 receptor, Y2 receptor},
	isbn = {07302312 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-67749108153\&partnerID=40\&md5=3fac97e90b88592291766e499000ae54},
	author = {Teixeira, L. and Sousa, D.M. and Nunes, A.F. and Sousa, M.M. and Herzog, H. and Lamghari, M.}
}
@article {2311,
	title = {NPY signalling pathway in bone homeostasis: Y1 receptor as a potential drug target},
	journal = {Current Drug TargetsCurr. Drug Targets},
	volume = {10},
	year = {2009},
	note = {Cited By (since 1996): 5Export Date: 21 November 2012Source: ScopusCODEN: CDTUAdoi: 10.2174/138945009787122888Language of Original Document: EnglishCorrespondence Address: Lamghari, M.; INEB - Instituto de Engenharia Biom{\'e}dica, Universidade do Porto, NEWTherapies Group, Rua do Campo Alegre 823, 4150-180 Porto, Portugal; email: lamghari@ineb.up.ptChemicals/CAS: gr 231118, 158859-98-4; n [1 [4 [[[[4 [(dimethylamino)methyl]cyclohexyl]methyl]amino]iminomethyl]benzyl] 2 oxo 2 (1 pyrrolidinyl)ethyl] alpha [(2 naphthalenylsulfonyl)amino]benzenepropanamide, 163238-19-5; n2 diphenylacetyl n (4 ureidomethylbenzyl)argininamide, 191868-14-1, 217977-06-5; nalpha (diphenylacetyl) n (4 hydroxybenzyl) dextro argininamide, 159013-54-4; neuropeptide Y, 82785-45-3, 83589-17-7; peptide YY, 81858-94-8; Ligands; Neuropeptide Y; Receptors, Neuropeptide YTradenames: bibo 3304; bibp 3226; gi 264879a; gr 231118; gw 1229; j 115814; ly 357897; sr 120819aReferences: Lundberg, P., Lerner, U.H., (2002) Microsc. Res. Tech, 58 (2), pp. 98-103;Baldock, P.A., Sainsbury, A., Couzens, M., Enriquez, R.F., Thomas, G.P., Gardiner, E.M., Herzog, H., (2002) J. Clin. Invest, 109 (7), pp. 915-921; 
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},
	month = {2009///},
	pages = {9 - 19},
	abstract = {Neuropeptide (NPY) is a neurotransmitter widely distributed in central and peripheral nervous system that has been implicated in several physiological processes through activation of five different Y receptors: Y1, Y2, Y4, Y5, and y6. NPY system has been extensively studied for the last decades due to its implications in a wide variety of physiological processes. For this purpose a diversity of sophisticated animal models and receptors agonists and antagonists has been developed to better understand its actions throughout body homeostasis. Consequently, NPY and its receptors have recently emerged as a potential regulator of bone homeostasis. This is supported by the demonstration of an increase of bone mass in mice lacking Y1 or Y2 receptor genes. Recent findings revealed Y1 receptor as a potential drug target candidate for prevention and treatment of bone loss. Indeed, it has been demonstrated that osteoblasts express Y1 receptor while no other Y receptor was detected in these cells, implicating Y1 receptor signalling in the local control of bone turnover. In this review, we have summarized the findings obtained from studies on NPY system in skeletogenesis focusing on Y1 receptor. {\textcopyright} 2009 Bentham Science Publishers Ltd.},
	keywords = {1 [1 [3 [(3 piperidyl)]]propyl] 2 [[(4 chlorophenoxyl)methyl]indol 3 yl] 2 (4 piperidylpiperidyl)ethan 1 one, 2 [1 (3 chloro 5 isopropoxycarbonylaminophenyl)ethylamino] 6 [2 (5 ethyl 4 methyl 2 thiazolyl)ethyl] 4 morpholinopyridine, 2 [1 (3 chloro 5 isopropyloxycarbonylaminophenyl)ethylamino] 6 [2 (5 ethyl 4 methyl 1,3 thiazol 2 yl)ethyl] 4 morpholinopyridine, Amino Acid Sequence, animal, Animals, bone development, bone mass, bone remodeling, Bone remodelling, bone turnover, Brain, drug antagonism, drug effect, drug potentiation, drug targeting, genetics, gi 264879a, gr 231118, Homeostasis, human, Humans, ligand, Ligands, ly 357897, metabolism, molecular genetics, Molecular Sequence Data, n alpha [3,3 bis(1 naphthyl)propionyl]dextro arginine n [1 benzyl 2 methoxyethyl]amide, n [1 [4 [[[[4 [(dimethylamino)methyl]cyclohexyl]methyl]amino]iminomethyl]benzyl] 2 oxo 2 (1 pyrrolidinyl)ethyl] alpha [(2 naphthalenylsulfonyl)amino]benzenepropanamide, n2 diphenylacetyl n (4 ureidomethylbenzyl)argininamide, nalpha (diphenylacetyl) n (4 hydroxybenzyl) dextro argininamide, neuropeptide Y, neuropeptide Y receptor, neuropeptide Y receptor agonist, neuropeptide Y receptor antagonist, neuropeptide Y [25 dextro arginine], neuropeptide Y [26 dextro histidine], neuropeptide Y [31 leucine 34 proline], neuropeptide Y [6 arginine 34 proline], neuropeptide Y [7 phenylalanine 34 proline], neuropeptide Y1 receptor, neuropeptide Y2 receptor, neuropeptide Y4 receptor, neuropeptide Y5 receptor, neuropeptide Y6 receptor, nonhuman, osteoblast, osteoclast, osteolysis, peptide YY, peptide YY [31 leucine 34 proline], peptide YY [34 proline], pharmacological blocking, physiology, protein binding, protein expression, protein family, protein isolation, receptor intrinsic activity, Receptors, Neuropeptide Y, review, signal transduction, unclassified drug, Y1 receptor},
	isbn = {13894501 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-63049117952\&partnerID=40\&md5=2e70b182cba78971a24c5a8124b7799b},
	author = {Sousa, D.M. and Herzog, H. and Lamghari, M.}
}
@article {2324,
	title = {Physical, chemical and in vitro biological profile of chitosan hybrid membrane as a function of organosiloxane concentration},
	journal = {Acta BiomaterialiaActa Biomater.},
	volume = {5},
	year = {2009},
	note = {Cited By (since 1996): 10Export Date: 21 November 2012Source: Scopusdoi: 10.1016/j.actbio.2008.07.022PubMed ID: 18722166Language of Original Document: EnglishCorrespondence Address: Hayakawa, S.; Biomaterial Laboratory, Graduate School of Natural Science and Technology, Okayama University, Tsushima, Okayama-shi, 700-8530, Japan; email: satoshi@cc.okayama-u.ac.jpChemicals/CAS: (3 glycidyloxypropyl)trimethoxysilane, 2530-83-8; calcium phosphate, 10103-46-5, 13767-12-9, 14358-97-5, 7758-87-4; chitosan, 9012-76-4; silicate, 12627-13-3; Chitosan, 9012-76-4; Cross-Linking Reagents; gamma-glycidoxypropyltrimethoxysilane, 2530-83-8; Silanes; SiloxanesTradenames: AldrichReferences: Lai, J.Y., Lin, F.C., Wang, C.C., Wang, D.M., Effect of nonsolvent additives on the porosity and morphology of asymmetric TPX membranes [J] (1996) J Membrane Sci, 118, pp. 49-61;Wang, D.M., Lin, F.C., Chiang, J.C., Lai, J.Y., Control of porosity of asymmetric TPX membranes [J] (1998) J Membrane Sci, 141, pp. 1-12; 
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},
	month = {2009///},
	pages = {346 - 355},
	abstract = {We attempted to prepare chitosan-silicate hybrid for use in a medical application and evaluated the physico-chemical properties and osteocompatibility of the hybrids as a function of γ-glycidoxypropyltrimethoxysilane (GPTMS) concentration. Chitosan-silicate hybrids were synthesized using GPTMS as the reagent for cross-linking of the chitosan chains. Fourier transform infrared spectroscopy,                        29Si CP-MAS NMR spectroscopy and the ninhydrin assay were used to analyze the structures of the hybrids, and stress-strain curves were recorded to estimate their Young{\textquoteright}s modulus. The swelling ability, contact angle and cytocompatibility of the hybrids were investigated as a function of the GPTMS concentration. A certain fraction of GPTMS in each hybrid was linked at the epoxy group to the amino group of chitosan, which was associated with the change in the methoxysilane group of GPTMS due to hybridization. The cross-linking density was around 80\% regardless of the volume of GPTMS. As the content of GPTMS increased, the water uptake decreased and the hydrophilicity of the hybrids increased except when the content exceeded amolar ratio of 1.5, when it caused a decrease. The values of the mechanical parameters assessed indicated that significant stiffening of the hybrids was obtained by the addition of GPTMS. The adhesion and proliferation of the MG63 osteoblast cells cultured on the chitosan-GPTMS hybrid surface were improved compared to those on the chitosan membrane, regardless of the GPTMS concentration. Moreover, human bone marrow osteoblast cells proliferated on the chitosan-GPTMS hybrid surface and formed a fibrillar extracellular matrix with numerous calcium phosphate globular structures, both in the presence and in the absence of dexamethasone. Therefore, the chitosan-GPTMS hybrids are promising candidates for basic materials that can promote bone regeneration because of their controllable composition (chitosan/GPTMS ratio). {\textcopyright} 2008 Acta Materialia Inc.
},
	keywords = {(3 glycidyloxypropyl)trimethoxysilane, article, assay, Biocompatibility, Bone Marrow Cells, calcium phosphate, cell adhesion, Cell Line, Tumor, cell proliferation, cell survival, cell viability, Chemical analysis, chitosan, concentration (parameters), controlled study, cross linking, Cross-Linking Reagents, extracellular matrix, human, human cell, Humans, hydrophobicity, in vitro study, infrared spectroscopy, Magnetic Resonance Spectroscopy, Microscopy, Electron, Scanning, molecular hybridization, Nuclear magnetic resonance spectroscopy, Organic-inorganic hybrid, osteoblast, Osteoblasts, Osteocompatibility, physical chemistry, priority journal, Silanes, silicate, siloxane, Siloxanes, Spectrophotometry, Ultraviolet, Spectroscopy, Fourier Transform Infrared, stress strain relationship, structure analysis, surface property, Tissue engineering, unclassified drug, water transport, γ-Glycidoxypropyltrimethoxysilane (GPTMS)},
	isbn = {17427061 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-56649083638\&partnerID=40\&md5=550d9a49b04985f38609e86d9adc5735},
	author = {Shirosaki, Y. and Tsuru, K. and Hayakawa, S. and Osaka, A. and Lopes, M.A. and Santos, J.D. and Costa, M.A. and Fernandes, M.H.}
}
@article {2328,
	title = {3-D biomodelling technology for maxillofacial reconstruction},
	journal = {Materials Science and Engineering CMater. Sci. Eng. C},
	volume = {28},
	year = {2008},
	note = {Cited By (since 1996): 3Export Date: 21 November 2012Source: Scopusdoi: 10.1016/j.msec.2008.02.007Language of Original Document: EnglishCorrespondence Address: Santos, J.D.; Instituto de Engenharia Biom{\'e}dica (INEB), Laborat{\'o}rio de Biomateriais, Rua Campo Alegre, 823, 4150-180 Porto, Portugal; email: jdsantos@fe.up.ptReferences: Pessa, J.E., (2001) Am. J. Orthod. Dentofac. Orthop., 119, p. 117;Poukens, J., Haex, J., Riediger, D., (2003) Comput. Aided Surg., 8 (3), p. 146; 
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},
	month = {2008///},
	pages = {1347 - 1351},
	abstract = {Biomodel is a product of rapid prototyping process that represents a new approach for surgical planning and simulation. Biomodels were found to be particularly effective to locate an exact defect with good measurement accuracy and without any risk to the patients{\textquoteright} health. These models could provide surgeons a realistic impression of complex structures before surgical intervention, allowing a define diagnosis and a precise preoperative simulation of skeleton modifying interventions. This work reports on the application of innovative 3-D biomodelling technology in the maxillofacial reconstruction. This technology allows for the calculation of the exact contours, angulations, length and general morphology of iliac crest and fibula flaps for maxillofacial reconstruction in a total of 28 clinical cases. Clinical results have shown that by using this technique, much better facial symmetry and improved functionality were achieved after surgery, which resulted in enormous benefits for treated patients. {\textcopyright} 2008 Elsevier B.V. All rights reserved.},
	keywords = {3D Biomodelling, Biomodels, Complex structures, Concurrent engineering, Facial symmetries, Free flap designing, Health risks, Job analysis, Maxillofacial reconstruction, Measurement accuracies, New approaches, Process engineering, Prototyping processes, Rapid prototyping, Repair, Restoration, Surgical interventions, Surgical planning, Three dimensional},
	isbn = {09284931 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-56549119884\&partnerID=40\&md5=8947ba40759ea882635e8050270e4c93},
	author = {Oliveira, M. and Sooraj Hussain, N. and Dias, A.G. and Lopes, M.A. and Azevedo, L. and Zenha, H. and Costa, H. and Santos, J.D.}
}
@article {2355,
	title = {Biocompatibility evaluation of DLC-coated Si                    3N
                    4 substrates for biomedical applications
},
	journal = {Diamond and Related MaterialsDiamond Relat. Mat.},
	volume = {17},
	year = {2008},
	note = {Cited By (since 1996): 30Export Date: 21 November 2012Source: ScopusCODEN: DRMTEdoi: 10.1016/j.diamond.2007.08.019Language of Original Document: EnglishCorrespondence Address: Silva, R.F.; CICECO, Glass and Ceramics Eng. Department, University of Aveiro, 3810-193 Aveiro, Portugal; email: rsilva@cv.ua.ptReferences: Sargeant, A., Goswami, T., (2006) Mater. Des., 27, p. 287;Petzow, G., Herrmann, M., (2002) Structure and Bonding, 102, p. 47. , Janson M. (Ed), Springer-Verlag, Berlin; 
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},
	month = {2008///},
	pages = {878 - 881},
	abstract = {DLC coatings are of enormous interest for biotribological applications due to their biocompatibility, auto-lubricious, and non-stick properties. The most demanding implant is the hip joint. Alternative materials to metal alloys are being increasingly investigated aiming low wear debris volume, in any case innocuous wear particles. Silicon nitride (Si                        3N
                        4) ceramics are light, tough, mechanical resistant, inert materials, turning them suitable for high-load medical applications. In this study, Si
                        3N
                        4 polished substrates were coated with adherent DLC coatings grown by DC magnetron sputtering to reduce of the friction forces against any antagonist material. Surface characterization results showed that the developed material is quite hydrophobic, with a total surface tension of 45.7~mN/m (polar component: 9.1~mN/m; dispersive component: 36.6~mN/m), and a zeta potential of - 35.0 {\textpm} 1.3~mV. In vitro testing using an acellular simulated body fluid (SBF) showed no apatite layer formation ability, as confirmed by SEM observation and analysis of the solution ions concentration with immersion time. MG63 osteoblast-like cells showed poor adhesion on the DLC films but the adherent cells displayed a normal morphology and, as compared to standard polystyrene tissue culture plates, exhibited a higher cell growth rate, suggesting no indication of cytotoxicity. Results suggested that the novel DLC-coated Si
                        3N
                        4 biomaterial should be adequate to be used for articular prostheses medical application. {\textcopyright} 2007 Elsevier B.V. All rights reserved.
},
	keywords = {Biocompatibility, Biomedical applications, Cell cultures, Coatings, Diamond like carbon films, DLC coatings, Hip joint, hydrophobicity, Magnetron sputtering, Medical applications, Metal alloys, Simulated body fluid (SBF), Tribology, Wear of materials},
	isbn = {09259635 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-42949123193\&partnerID=40\&md5=cd3b4088694ff1912985627d87f7e090},
	author = {Salgueiredo, E. and Vila, M. and Silva, M.A. and Lopes, M.A. and Santos, J.D. and Costa, F.M. and Silva, R.F. and Gomes, P.S. and Fernandes, M.H.}
}
@article {2357,
	title = {Bone ingrowth in macroporous Bonelike                    {\textregistered} for orthopaedic applications
},
	journal = {Acta BiomaterialiaActa Biomater.},
	volume = {4},
	year = {2008},
	note = {Cited By (since 1996): 13Export Date: 21 November 2012Source: Scopusdoi: 10.1016/j.actbio.2007.06.009PubMed ID: 17716960Language of Original Document: EnglishCorrespondence Address: Santos, J.D.; FEUP - Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal; email: jdsantos@fe.up.ptChemicals/CAS: Bone SubstitutesTradenames: BonelikeReferences: Akamatsu, Y., Koshino, T., Saito, T., Wada, J., Changes in osteosclerosis of the osteoarthritic knee after high tibial osteotomy (1997) Clin Orthop, 334, pp. 207-214;Coventry, M.B., Ilstrup, D.M., Wallrichs, S.L., Proximal tibial osteotomy. A critical long-term study of eighty-seven cases (1993) J Bone Joint Surg, 75 -A, pp. 196-201; 
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Santos JD, Hastings G, Knowles JC. Sintered hydroxyapatite compositions and method for the preparation thereof. Worldwide Application (PCT), Patent No. 1 189 851, 1999Lopes, M.A., Monteiro, F.J., Santos, J.D., Glass-reinforced hydroxyapatite composites: fracture toughness and hardness dependence on microstructural characteristics (1999) Biomaterials, 20 (21), pp. 2085-2090; 
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Lopes, M.A., Monteiro, F.J., Santos, J.D., Serro, A.P., Saramago, B., Hydrophobicity, Surface tension and Zeta potential measurements of glass reinforced hydroxyapatite composites (1999) J Biomed Mater Res, 45, pp. 370-375; 
Lopes, M.A., Knowles, J.C., Santos, J.D., Monteiro, F.J., Olsen, I., Direct and Indirect effects of P 2O 5 - glass reinforced - hydroxyapatite composites and growth and function of osteoblast-like cells (2000) Biomaterials, 21, pp. 1165-1172; 
Lopes, M.A., Santos, J.D., Monteiro, F.J., Ohtsuki, C., Osaka, A., Kaneko, S., Push-out testing and histological evaluation of glass reinforced hydroxyapatite composites implanted in the tibiae of rabbits (2001) J Biomed Mater Res, 54, pp. 463-469; 
Ferraz, M.P., Fernandes, M.H., Santos, J.D., Monteiro, F.J., HA and Double layer HA-P 2O 5/CaO Glass coatings: influence of chemical composition on human bone marrow cells osteoblastic behaviour (2001) J Mater Sci: Mater Med, 12, pp. 629-638; 
Gutierres, M., Hussain, N.S., Afonso, A., Almeida, L., Cabral, T., Lopes, M.A., Biological behaviour of Bonelike {\textregistered} graft implanted in the tibia of humans (2005) Key Eng Mater, 17, pp. 1041-1044; 
Duarte, F., Santos, J.D., Afonso, A., Medical applications of Bonelike {\textregistered} in maxillofacial surgery (2004) Adv Mater Forum, pp. 370-373; 
Lobato, J.V., Hussain, N.S., Botelho, C.M., Titanium dental implants coated with Bonelike {\textregistered}: clinical case report (2006) Thin Solid Films, 515, p. 279; 
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Coventry, M.B., Current concepts review. Upper tibia osteotomy for osteoarthritis (1985) J Bone Joint Surg Am, 67 A, pp. 1136-1140
},
	month = {2008///},
	pages = {370 - 377},
	abstract = {The aim of this study was to evaluate the biological behaviour of porous scaffold structures of Bonelike                        {\textregistered} which is suitable for either direct clinical use or tissue engineering applications. Porous cylindrical specimens 8 {\texttimes} 10 mm were implanted in the lateral aspect of the tibia of 13 patients (mean age 54 years), during osteotomy surgery for the treatment of medial compartment osteoarthritis of the knee. Implanted cylinders were retrieved at the same time as the removal of the blade plates at 3, 6, 9 and 12 months. Scanning electron microscopy and histological evaluations were performed to observe the biological responses of human bone tissue to porous Bonelike
                        {\textregistered}. The penetration depth was determined for all implantation periods, and after 6 months it was already possible to see new bone in the centre of the implanted cylinders, which gives 100\% of penetration depth for all implantations periods except for 3 months when bone could only be seen in the peripherical region. Regarding the percentage of the area covered by new bone calculated from two-dimensional histological sections, values of 53 {\textpm} 15, 76 {\textpm} 12 and 88 {\textpm} 9\% were achieved for 6, 9 and 12 months, respectively. Due to its structural features porous Bonelike
                        {\textregistered} permitted effective vascularization and bone ingrowth, and therefore was fully osteointegrated as shown in the histological surveys. A slow biomaterial degradation with implantation time is envisaged since the material has displayed surface degradation. Bonelike
                        {\textregistered} scaffolds show potential for complete ingrowth of osseous tissue and restoration of vascularization throughout the defected site. {\textcopyright} 2007.
},
	keywords = {adult, aged, article, biomaterial, bone defect, Bone graft, bone growth, Bone Regeneration, Bone Substitutes, bone tissue, Bonelike, clinical article, controlled study, Female, histology, human, human tissue, Humans, implant, knee osteoarthritis, male, materials testing, Microscopy, Electron, Scanning, Middle Aged, molecular scaffold, Orthopaedic, orthopedics, Osseointegration, Osteoarthritis, osteotomy, porosity, Porous materials, priority journal, Prostheses and Implants, Scanning electron microscopy, tibia, Time Factors, Tissue engineering, tissue section, vascularization, {\textregistered}},
	isbn = {17427061 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-38949142954\&partnerID=40\&md5=ab5a278b6d421b9e8e96f9397b7c54e1},
	author = {Gutierres, M. and Lopes, M.A. and Sooraj Hussain, N. and Lemos, A.F. and Ferreira, J.M.F. and Afonso, A. and Cabral, A.T. and Almeida, L. and Santos, J.D.}
}
@article {2364,
	title = {A clinical report of bone regeneration in maxillofacial surgery using bonelike{\textregistered} synthetic bone graft},
	journal = {Journal of Biomaterials ApplicationsJ. Biomater. Appl.},
	volume = {22},
	year = {2008},
	note = {Cited By (since 1996): 6Export Date: 21 November 2012Source: ScopusCODEN: JBAPEdoi: 10.1177/0885328207078260Language of Original Document: EnglishCorrespondence Address: Santos, J.D.; Instituto de Engenharia Biom{\'e}dica, Laborat{\'o}rio de Biomateriais, Rua Campo Alegre 823, 4150-180 Porto, Portugal; email: jdsantos@fe.up.ptChemicals/CAS: Bone SubstitutesReferences: Mohamed, A., Sudha, K., Kim, F., Karl, K., Scott, P.B., Bone Graft Substitutes (2003) Cell Based Approaches for Bone Graft Substitutes, p. 127. , In: Laurencin, C.T. (ed.), Chapter 7 ASTM - International, USA;Mellonig, J.T., Prewett, A.B., Moyer, M.P., HIV Inactivation in a Bone Allograft (1992) J. Periodontol., 63, p. 979; 
Buck, B.E., Malinin, T.I., Brown, M.D., Bone Transplantation and Human Immunodeficiency Virus. An Estimate of Risk of Acquired Immunodeficiency Syndrome (AIDS) (1989) Clin. Orthop., 240, p. 129; 
Mary, E.A.R., Raymond, A.Y., Bone Replacement Grafts - The Bone Substitutes (1998) Dent. Clin. North Am., 42 (3), p. 491; 
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Wright, S., Commentary The Bone-Graft Market in Europe, in Emerging Technologies in Orthopedics I: Bone Graft Substitutes (1999) Bone Growth Stimulators and Bone Growth Factors By Datamonitor Plc, p. 591; 
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Frayssinet, P., Trouillet, J.L., Rouquet, N., Azimus, E., Autefage, A., Osseointegration Macroporous Calcium Phosphate Ceramics Having a Different Chemical Composition (1993) Biomaterials, 14, p. 423; 
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Daculsi, G., Biphasic Calcium Phosphate Concept Applied to Artificial Bone, Implant Coating and Injectable Bone Substitute (1998) Biomaterials, 19, p. 1473; 
Santos, J.D., Hastings, G.W., Knowles, J.C., Sintered Hydroxyapatite Compositions and Method for the Preparation Thereof (1999) Worldwide Applications, , (PCT), Patent No. 1 189 851; 
Lopes, M.A., Santos, J.D., Monteiro, F.J., Knowles, J.C., Glass Reinforced Hydroxyapatite: A Comprehensive Study of the Effect of Glass Composition on the Crystallography of the Composite (1998) J. Biomed. Mater. Res., 39, p. 244; 
Lopes, M.A., Monteiro, F.J., Santos, J.D., Glass-reinforced Hydroxyapatite Composites: Fracture Toughness and Hardness Dependence on Microstructural Characteristics (1999) Biomaterials, 20, p. 2085; 
Lopes, M.A., Silva, R.F., Monteiro, F.J., Santos, J.D., Microstructural Dependence of Young{\textquoteright}s and Shear Moduli of P 2 O 2 Glass Reinforced Hydroxyapatite for Biomedical Applications (2000) Biomaterials, 21, p. 749; 
Lopes, M.A., Santos, J.D., Monteiro, F.J., Ohtsuki, C., Osaka, A., Kaneko, S., Inoue, H., Push-out Testing and Histological Evaluation of Glass Reinforced Hydroxyapatite Composites Implanted in the Tibia of Rabbits (2001) J. Biomed. Mater. Res., 54, p. 463; 
Lobato, J.V., Hussain, N.S., Botelho, C.M., Rodrigues, J.M., Lu{\'\i}s, A.L., Maur{\'\i}cio, A.C., Lopes, M.A., Santos, J.D., Assessment of the Potential of Bonelike{\textregistered} Graft for Bone Regeneration by using an Animal Model (2005) Key. Eng. Mater., 877, pp. 284-286; 
Lobato, J.V., Hussain, N.S., Botelho, C.M., Mauricio, A.C., Afonso, A., Ali, N., Santos, J.D., Assessment of Bonelike{\textregistered} Graft with a Resorbable Matrix using an Animal Model (2006) Thin Solid Films, 515, p. 362; 
Duarte, F., Santos, J.D., Afonso, A., Medical Applications of Bonelike{\textregistered} in Maxillofacial Surgery (2004) Mater. Sci. Forum, 370, pp. 455-456; 
Gutierres, M., Hussain, N.S., Afonso, A., Almeida, L., Cabral, T., Lopes, M.A., Santos, J.D., Biological Behaviour of Bonelike{\textregistered} Graft Implanted in Tibia of Humans (2005) Key Eng. Mater., 1041, pp. 284-286; 
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Meinel, L., Betz, O., Fajardo, R., Hofmann, S., Nazarian, A., Cory, E., Hilbe, M., Kirker-Head, C., Silk Based Biomaterials to Heal Critical Sized Femur Defects (2006) Bone, 39, p. 922; 
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Carano, R.A.D., Filvaroff, E.H., Angiogenesis and Bone Repair (2003) Drug Discov. Today, 21, p. 980; 
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.}
}
@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; 
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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 {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; 
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Melo, M., Obeid, G., Osteonecrosis of the maxilla in a patient with a history of bisphosphonate therapy (2005) J Can Dent Assoc, 71 (2), pp. 111-113
},
	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 {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; 
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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.}
}
@article {2341,
	title = {Nanocrystalline diamond as a coating for joint implants: Cytotoxicity and biocompatibility assessment},
	journal = {Journal of NanomaterialsJ. Nanomater.},
	volume = {2008},
	year = {2008},
	note = {Cited By (since 1996): 6Export Date: 21 November 2012Source: ScopusArt. No.: 894352doi: 10.1155/2008/894352Language of Original Document: EnglishCorrespondence Address: Silva, R. F.; Departamento de Engenharia Cer{\^a}mica e Vidro, Centro de Investiga{\c c}{\~a}o em Materiais Cer{\^a}micos e Comp{\'o}sitos (CICECO), Universidade de Aveiro, 3810-193 Aveiro, Portugal; email: rsilva@ua.ptReferences: Grabarczyk, J., Batory, D., Louda, P., Couvrat, P., Kotela, I., Bakowicz Mitura, K., Carbon coatings for medical implants (2007) Journal of Achievements in Materials and Manufacturing Engineering, 20 (20), pp. 107-110;Jakubowski, W., Bartosz, G., Niedzielski, P., Szymanski, W., Walkowiak, B., Nanocrystalline diamond surface is resistant to bacterial colonization (2004) Diamond and Related Materials, 13 (10), pp. 1761-1763; 
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Webster, T.J., Schadler, L.S., Siegel, R.W., Bizios, R., Mechanisms of enhanced osteoblast adhesion on nanophase alumina involve vitronectin (2001) Tissue Engineering, 7 (3), pp. 291-301
},
	month = {2008///},
	abstract = {Nanocrystalline diamond (NCD) coatings combine a very low surface roughness with the outstanding diamond properties, such as superlative hardness, low self-friction coefficient, high wear and corrosion resistance, and biotolerance, which are ideal features for applications in medicine (knee and hip replacement) and surgical tools. The present work presents a comprehensive study of the cytotoxicity and biocompatibility of NCD films grown by hot-filament chemical vapour deposition (HFCVD) technique, aiming such future applications. Cytotoxicity was evaluated in vitro by seeding human gingival fibroblasts on the NCD surface for 14 days, while specific biocompatibility was assessed on samples seeded with human bone marrow-derived osteoblasts during 21 days. The NCD coatings proved to be noncytotoxic in the preliminary human gingival fibroblast cell cultures, as denoted by a notable sequence of cell attachment, spreading, and proliferation events. In the specific biocompatibility assay envisaging bone tissue applications, NCD coatings induced human osteoblast proliferation and the stimulation of differentiation markers, compared to standard polystyrene tissue culture plates. Copyright {\textcopyright} 2008.},
	isbn = {16874110 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-49749138226\&partnerID=40\&md5=4ff56cef8d03fc8708bd965fe1b64ee0},
	author = {Amaral, M. and Gomes, P.S. and Lopes, M.A. and Santos, J.D. and Silva, R.F. and Fernandes, M.H.}
}
@article {2337,
	title = {Nanocrystalline diamond: In vitro biocompatibility assessment by MG63 and human bone marrow cells cultures},
	journal = {Journal of Biomedical Materials Research - Part AJ. Biomed. Mater. Res. Part A},
	volume = {87},
	year = {2008},
	note = {Cited By (since 1996): 25Export Date: 21 November 2012Source: ScopusCODEN: JBMRCdoi: 10.1002/jbm.a.31742PubMed ID: 18085649Language of Original Document: EnglishCorrespondence Address: Silva, R. F.; CICECO, Department of Ceramics and Glass Engineering, University of Aveiro, 3810-193 Aveiro, Portugal; email: rsilva@cv.ua.ptChemicals/CAS: diamond, 7782-40-3; polystyrene, 9003-53-6; silicon nitride, 12033-89-5; Alkaline Phosphatase, EC 3.1.3.1; Ceramics; Coated Materials, Biocompatible; Diamond, 7782-40-3; Silicon Compounds; silicon nitride, 12033-89-5References: Ratner, B.D., Hoffman, A.S., Schoen, A.S., Lemons, J.E., (1996) Biomaterials Science: An Introduction to Materials in Medicine, , New York: Academic Press;;Emery, D.F.G., Clarke, H.J., Grover, M.L., Stanmore total hip replacement in younger patients: Review of a group of patients under 50 years of age at operation (1997) J Bone Joint Surg, 79, pp. 240-246; 
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Kaplan, F.S., Hayes, W.C., Keaveny, T.M., Boskey, A., Einhorn, T.A., Iannotti, J.P., Form and function of bone (1994) Orthopedic Basic Science, pp. 127-185. , Simon SP, editor, Columbus, OH: American Academy of Orthopedic Surgeons;; 
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Webster, T.J., Smith, T.A., Increased osteoblast function on PLGA composites containing nanophase titania (2005) J Biomed Mater Res A, 74, pp. 677-686; 
Balasundaram, G., Sato, M., Webster, T.J., Using hydroxyapatite nanoparticles and decreased crystallinity to promote osteoblast adhesion similar to functionaizing with RGD (2006) Biomaterials, 27, pp. 2798-2805; 
Webster, T.J., (2004) Proteins: Structure and interactions patterns to solid surfaces, pp. 1-16. , editors. Encyclopedia of Nanoscience and Nanotechnology. New York: Marcel Dekker; 
Siegel RW. Creating nanophase materials. Sci Am (Int Ed) 1996;275:74-79Webster, T.J., Enhanced functions of osteoblasts on nanophase ceramics (2000) Biomaterials, 21, pp. 1803-1810; 
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Webster, T.J., Schadler, L.S., Siegel, R.W., Bizios, R., Mechanisms of enhanced osteoblast sdhesion on nanophase alumina involve vitronectin (2001) Tissue Eng, 7, pp. 291-301
},
	month = {2008///},
	pages = {91 - 99},
	abstract = {Nanocrystalline diamond (NCD) has a great potential for prosthetic implants coating. Nevertheless, its biocompatibility still has to be better understood. To do so, we employed several materials characterization techniques (SEM, AFM, micro-Raman spectroscopy) and cell culture assays using MG63 osteoblast-like and human bone marrow cells. Biochemical routines (MTT assays, Lowry{\textquoteright}s method, ALP activity) supported by SEM and confocal microscopy characterization were carried out. We used silicon nitride (Si                        3N
                        4) substrates for NCD coatings based on a previous demonstration of the superior adhesion and tribological performance of these NCD coated ceramics. Results demonstrate an improved human osteoblast proliferation and the stimulation of differentiated markers, like ALP activity and matrix mineralization, compared with standard polystyrene tissue culture plates. The nanometric featuring of NCD, associated to its chemical affinity are key points for bone regeneration purposes. {\textcopyright} 2007 Wiley Periodicals, Inc.
},
	keywords = {adult, alkaline phosphatase, ALP activity, Animal cell culture, Architectural acoustics, article, Atomic force microscopy, Biocompatibility, Bone, bone marrow cell, Bone Marrow Cells, Bone Regeneration, Cell culture, cell proliferation, cell survival, Cells, Cells, Cultured, ceramics, Cladding (coating), Coated Materials, Biocompatible, confocal microscopy, controlled study, diamond, Diamonds, enzyme activity, extracellular matrix, human, Human bone marrow cells, human cell, Humans, Imaging techniques, Implants (surgical), In vitro biocompatibility, in vitro selection, Joint replacement, male, Materials characterization, materials testing, Micro-Raman spectroscopy, Microscopic examination, Microscopy, Atomic Force, Microscopy, Confocal, Microscopy, Electron, Scanning, mineralization, MTT assaying, Nano-crystalline diamond, nanocrystal, Nanocrystalline alloys, Nanocrystalline materials, nanoparticles, Nanostructured materials, Nitrides, Nonmetals, osteoblast, Osteoblasts, polystyrene, Prostheses and Implants, Raman spectrometry, Scanning electron microscopy, Secondary emission, Silicon, Silicon compounds, Silicon nitride, Spectrum Analysis, Raman, Surface Properties, Tissue engineering},
	isbn = {15493296 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-51849084188\&partnerID=40\&md5=a41a73f23c0c63950b4613f44d51bd23},
	author = {Amaral, M. and Dias, A.G. and Gomes, P.S. and Lopes, M.A. and Silva, R.F. and Santos, J.D. and Fernandes, M.H.}
}
@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; 
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},
	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 {2354,
	title = {PLD bioactive ceramic films: The influence of CaO-P                    2O 
                    5 glass additions to hydroxyapatite on the proliferation and morphology of osteblastic like-cells
},
	journal = {Journal of Materials Science: Materials in MedicineJ. Mater. Sci. Mater. Med.},
	volume = {19},
	year = {2008},
	note = {Cited By (since 1996): 4Export Date: 21 November 2012Source: ScopusCODEN: JSMMEdoi: 10.1007/s10856-007-3331-zPubMed ID: 18058197Language of Original Document: EnglishCorrespondence Address: Oliveira, G. M.; Universidade Fernando Pessoa, Pra{\c c}a Nove de Abril 349, 4249-004 Porto, Portugal; email: gisela@ufp.ptChemicals/CAS: calcium oxide, 1305-78-8; hydroxyapatite, 1306-06-5, 51198-94-8; oxide, 16833-27-5; Biocompatible Materials; Calcium Compounds; Ceramics; Durapatite, 1306-06-5; Oxides; Phosphorus Compounds; Polystyrenes; lime, 1305-78-8; phosphorus pentoxide, 1314-56-3References: Hench, L.L., (1991) J. Am. Ceram. Soc., 74, p. 1487;Hench, L.L., (1998) Biomaterials, 19, p. 1419; 
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},
	month = {2008///},
	pages = {1775 - 1785},
	abstract = {This work consists on the evaluation of the in vitro performance of Ti6Al4V samples PLD (pulsed laser deposition) coated with hydroxyapatite, both pure and mixed with a CaO-P                        2O
                        5 glass. Previous studies on immersion of PLD coatings in SBF, showed that the immersion apatite films did not present the usual cauliflower morphology but replicated the original columnar structure and exhibited good bioactivity. However, the influence of glass associated to hydroxyapatite concerning adhesion, proliferation and morphology of MG63 cells on the films surface was unclear. In this study, the performance of these PLD coated samples was evaluated, not only following the physical-chemical transformations resulting from the SBF immersion, but also evaluating the cytocompatibility in contact with osteoblast-like MG63 cells. SEM and AFM confirmed that the bioactive ceramic PLD films reproduce the substrate{\textquoteright}s surface topography and that the films presented good adherence and uniform surface roughness. Physical-chemical phenomena occurring during immersion in SBF did not modify the original columnar structure. In contact with MG63 cells, coated samples exhibited very good acceptance and cytocompatibility when compared to control. The glass mixed with hydroxyapatite induced higher cellular proliferation. Cells grown on these samples presented many filipodia and granular structures, typical features of osteoblasts. {\textcopyright} 2007 Springer Science+Business Media, LLC.
},
	keywords = {Apatite, Apatite films, Bioactive ceramic films, Bioactive glass, Bioactivity, Bioceramics, Biocompatible Materials, Biofilms, Brassica oleracea var. botrytis, Calcium Compounds, calcium oxide, Cauliflower morphology, cell adhesion, cell proliferation, cell structure, cell survival, ceramics, Columnar structure, conference paper, controlled study, Durapatite, glass, human, human cell, Humans, hydroxyapatite, Lasers, materials testing, Microscopy, Atomic Force, Microscopy, Electron, Scanning, morphology, osteoblast, Osteoblasts, oxide, Oxides, phosphorous pentoxide, Phosphorus Compounds, Polystyrenes, priority journal, Pulsed laser deposition, unclassified drug},
	isbn = {09574530 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-40949140642\&partnerID=40\&md5=de09d5133a0616668cb5e57135d91ae6},
	author = {Oliveira, G.M. and Ferraz, M.P. and Gonz{\'a}lez, P.G. and Serra, J. and Leon, B. and P{\`e}rez-Amor, M. and Monteiro, F.J.}
}
@article {2360,
	title = {Structural studies of Na                    2O-TiO
                    2-CaO-P 
                    2O
                    5 system glasses investigated by FTIR and FT-Raman
},
	journal = {Physics and Chemistry of Glasses: European Journal of Glass Science and Technology Part BPhys. Chem. Glasses Euro. J. Glass Sci. Technol. Part B},
	volume = {49},
	year = {2008},
	note = {Cited By (since 1996): 2Export Date: 21 November 2012Source: ScopusLanguage of Original Document: EnglishCorrespondence Address: Li, Y.; College of Materials Science and Engineering, Nanjing University of Technology, Nanjing, 210009, China; email: lyanbao@163.comReferences: Hench, L.L., Glasses to turn on genes (2004) Glass Sci. Technol, 77, pp. 95-103;Hench, L.L., Third-generation gene-activating biomaterials (2003) Thermec{\textquoteright}2003, Pts 1-5, pp. 179-184; 
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},
	month = {2008///},
	pages = {41 - 45},
	abstract = {CaO-P                        2O
                        5 based glasses are widely used as biomaterials due to their various chemical compositions, excellent bioactivity, adjustable biodegradation and suitable mechanical properties. The structures of Na
                        2O-TiO
                        2-CaO-P
                        2O
                        5 system glasses were investigated by FTIR and FT-Raman spectroscopies. The calcium phosphate glasses have chain-like structures based on Ti-O-P linkages containing [P 
                        2O
                        7]
                        4- groups and [PO
                        4]
                        3- groups. Some amount of TiO
                        2 enters into the glass network, in which [TiO
                        4] tetrahedra connect with [PO
                        4] tetrahedra through the P-O-Ti bonds, the remaining TiO
                        2 exists into interspaces of [PO
                        4] tetrahedra. CaO connects the two linkages in the form of Ca-O-P bonds.
},
	isbn = {00319090 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-41749114280\&partnerID=40\&md5=5f510b0f5942a43bc269a37ce157e6e1},
	author = {Li, Y. and Weng, W. and Santos, J.D. and Lopes, A.M.}
}
@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; 
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Scott, I., Cootes, T., Taylor, C., Shape particle filtering for image segmentation (2003) Lecture Notes in Computer Science, 2732, pp. 258-269. , of, Springer; 
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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.}
}
@article {2368,
	title = {Opening wedge high tibial osteotomy using 3D biomodelling Bonelike{\textregistered} macroporous structures: Case report},
	journal = {Journal of Materials Science: Materials in MedicineJ. Mater. Sci. Mater. Med.},
	volume = {18},
	year = {2007},
	note = {Cited By (since 1996): 9Export Date: 21 November 2012Source: ScopusCODEN: JSMMEdoi: 10.1007/s10856-007-3171-xPubMed ID: 17569003Language of Original Document: EnglishCorrespondence Address: Santos, J.D.; Laborat{\'o}rio de Biomateriais, Instituto de Engenharia Biom{\'e}dica (INEB), Rua do Campo Alegre 823, Porto 4150-180, Portugal; email: jdsantos@fe.up.ptChemicals/CAS: calcium phosphate, 10103-46-5, 13767-12-9, 14358-97-5, 7758-87-4; hydroxyapatite, 1306-06-5, 51198-94-8; Bone Substitutes; Calcium Phosphates; Ceratite, 124097-42-3; HydroxyapatitesTradenames: BonelikeReferences: Gaasbeek, R.D.A., Welsing, R.T.C., Verdonschot, N., Rijnberg, W.J., Van Loon, C.J.M., Van Kampen, A., (2005) Knee Surg. Sports Traumatol. Arthrosc., 13, p. 689. , 8;Scott, W.N., Clarke, H.D., (2004) Orthopedics, 27, p. 975. , 9; 
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Van Hemert, W.L.W., Willems, K., Anderson, P.G., Van Heerwaarden, R.J., Wymenga, A.B., (2004) Knee, 11, p. 451. , 6; 
Gaasbeek, R.D.A., Toonen, H.G., Van Heerwaarden, R.J., Buma, P., (2005) Biomaterials, 26, p. 6713. , 33; 
Hernigou, P., Ma, W., (2001) Knee, 8, p. 103. , 2; 
Koshino, T., Murase, T., Saito, T., (2003) J. Bone Joint Surg. Am., 85, p. 78. , 1; 
Koshino, T., Murase, T., Takagi, T., Saito, T., (2001) Biomaterials, 22, p. 1579. , 12; 
Zhim, F., Laflamme, G.Y., Viens, H., Saidane, K., Yahia, L., (2005) Clin. Biomech., 20, p. 871. , 8; 
Lopes, M.A., Monteiro, F.J., Santos, J.D., (1999) Biomaterials, 20, p. 2085. , 21; 
Lopes, M.A., Monteiro, F.J., Santos, J.D., (1999) J. Biomed. Mater. Res., 48, p. 734. , 5
},
	month = {2007///},
	pages = {2377 - 2382},
	abstract = {Two synthetic calcium phosphates in porous wedge shape, Bonelike{\textregistered} and a commercial HA/β-TCP biphasic material, were used as an alternative to bone autografts and allografts in the treatment of medial compartment osteoarthritis of varus knees. The structure of Bonelike{\textregistered} has a 3D architecture that is computer controlled, and a composition that mimics the mineral composition of natural bone. The HA/β-TCP biphasic material used as a control material in this study was prepared using conventional foaming based methods. No signs of inflammatory reactions were observed post-operatively for both materials. After 4 months signs of fusion at the osteotomy site and good integration of the implanted wedges were observed, showing good mechanical resistance. Concerning the final correction attained, the left knee revealed a satisfactory valgus of 10{\textdegree}, but the right one only had a final value of 6{\textdegree}. The clinical evaluation using International Knee Score (IKS) showed good outcome in all parameters with complete range of motion in both knees and climbing stairs without crutches with only slight pain. {\textcopyright} 2007 Springer Science+Business Media, LLC.},
	keywords = {adult, article, Biological organs, Biomodeling, Bone, bone allograft, Bone graft, bone mineral, Bone Substitutes, calcium phosphate, Calcium phosphates, case report, climbing, clinical evaluation, Computer simulation, Grafts, human, Humans, hydroxyapatite, Hydroxyapatites, Imaging, Three-Dimensional, knee, knee pain, Macroporous structures, male, Mechanical properties, Middle Aged, Osteoarthritis, Osteoarthritis, Knee, Osteoblasts, osteotomy, pain assessment, porosity, Porous wedge shapes, priority journal, Prostheses and Implants, range of motion, structure analysis, tibia, tibia osteotomy, Tibial osteotomy, Valgus, valgus knee},
	isbn = {09574530 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-36448991200\&partnerID=40\&md5=856e2db65f4b4dc72a1128388ebc479a},
	author = {Gutierres, M. and Dias, A.G. and Lopes, M.A. and Hussain, N.S. and Cabral, A.T. and Almeida, L. and Santos, J.D.}
}
@article {2382,
	title = {Physicochemical degradation studies of calcium phosphate glass ceramic in the CaO-P                    2O
                    5-MgO-TiO
                    2 system
},
	journal = {Acta BiomaterialiaActa Biomater.},
	volume = {3},
	year = {2007},
	note = {Cited By (since 1996): 5Export Date: 21 November 2012Source: Scopusdoi: 10.1016/j.actbio.2006.09.009PubMed ID: 17150421Language of Original Document: EnglishCorrespondence Address: Lopes, M.A.; Instituto de Engenharia Biom{\'e}dica (INEB), Laborat{\'o}rio de Biomateriais, Rua do Campo Alegre 823, 4150-180 Porto, Portugal; email: malopes@fe.up.ptChemicals/CAS: calcium ion, 14127-61-8; hydroxyapatite, 1306-06-5, 51198-94-8; phosphate, 14066-19-4, 14265-44-2; titanium, 7440-32-6; Biocompatible Materials; Calcium Compounds; calcium phosphate, 10103-46-5; Calcium Phosphates; Ceramics; Glass ceramics, 85422-94-2; lime, 1305-78-8; Magnesium Oxide, 1309-48-4; Oxides; Phosphorus Compounds; phosphorus pentoxide, 1314-56-3; titanium dioxide, 13463-67-7; Titanium, 7440-32-6References: (2003) Bone graft substitutes, , Laurencin C.T. (Ed), ASTM International;(1993) Introduction to bioceramics, , Hench L.L., and Wilson J. (Eds), World Scientific, Singapore; 
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Dias, A.G., Lopes, M.A., Afonso, A.A., Tsuru, K., Hayakawa, S., Takashima, S., In vivo performance of biodegradable calcium phosphate glass ceramics using the rabbit model: histological and SEM observation (2006) J Biomater Appl, 20, p. 253; 
Dias, A.G., Lopes, M.A., Cabral, A.T.T., Santos, J.D., Fernandes, M.H., In vitro studies of calcium phosphate glass ceramics with different solubility with the use of human bone marrow cells (2005) J Biomed Mater Res A, 74 A, p. 347; 
Dias, A.G., Skakle, J.M.S., Gibson, I.R., Lopes, M.A., Santos, J.D., In situ thermal and structural characterization of bioactive calcium phosphate glass ceramics containing TiO 2 and MgO oxides: high temperature XRD studies (2005) J Non-Cryst Solids, 351, p. 810; 
Baron, R., Neff, L., Louvard, D., Courtoy, P.J., Cell-mediated extracellular acidification and bone-resorption - evidence for a low ph in resorbing lacunae and localization of a 100-kD lysosomal membrane-protein at the osteoclast ruffled border (1985) J Cell Biol, 101, p. 2210; 
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Dias, A.G., Tsuru, K., Hayakawa, T., Lopes, M.A., Santos, J.D., Osaka, A., Crystallisation studies of biodegradable CaO-P 2O 5 glass with MgO and TiO 2 for bone regeneration applications (2004) Glass Tech, 45, p. 78; 
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},
	month = {2007///},
	pages = {263 - 269},
	abstract = {The aim of this work was to evaluate the in vitro degradation behaviour of a 45CaO-37P                        2O
                        5-5MgO-13TiO
                        2 (mol.\%) glass ceramic, under two different simulated physiological conditions: normal physiological pH 7.4, and pH 3.0, which was designed to simulate the acidic conditions produced by osteoclast cells. The in vitro testing was carried out at 37 {\textdegree}C for up to 42 days for the pH 7.4 solution and for up to 1 day for the pH 3.0 solution. The incorporation of TiO
                        2 into the glass structure leads to the precipitation of specific crystalline phases in the glass matrix, namely α- and β-Ca
                        2P
                        2O
                        7, TiP
                        2O
                        7 and CaTi
                        4(PO
                        4)
                        6. The degradation testing at pH 3.0 showed a higher weight loss compared with degradation testing at pH 7.4; the weight loss under the acidic condition after 1 day (24 h) was about 10 times higher than the weight loss after 42 days of immersion at pH 7.4. The ionic release profile of Ca
                        2+, PO
                        4
                        3 -, Mg
                        2+ and Ti
                        4+ showed a continuous increase in concentration over all immersion times for both testing solutions. After 1 day of immersion at pH 3.0, the concentration levels of Mg
                        2+, Ca
                        2+, PO
                        4
                        3 - were about six times higher than the levels achieved after 42 days of immersion at pH 7.4. The glass ceramic showed similar degradation to hydroxyapatite, and therefore has potential to be used in certain clinical applications where relatively slow resorption of the implant and replacement by bone is required, e.g. cranioplasty. {\textcopyright} 2006 Acta Materialia Inc.
},
	keywords = {acidity, article, Biocompatible Materials, Biomaterials, Bone, Bone and Bones, bone prosthesis, Calcium Compounds, calcium ion, calcium phosphate ceramic, Calcium phosphates, ceramics, Chemical structure, concentration response, controlled study, cranioplasty, Crystallization, Degradation, glass, Hydrogen-Ion Concentration, hydroxyapatite, In vitro biodegradation, in vitro study, Magnesium Oxide, materials testing, Microscopy, Electron, Scanning, Models, Statistical, osteoclast, Oxides, pH, phosphate, Phosphorus Compounds, physical chemistry, priority journal, prosthesis material, simulation, Spectrum Analysis, Raman, structure analysis, temperature, Time Factors, Titanium, weight reduction},
	isbn = {17427061 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-33846874794\&partnerID=40\&md5=e8b44c423b36e42f43512d34157080ce},
	author = {Dias, A.G. and Gibson, I.R. and Santos, J.D. and Lopes, M.A.}
}
@book {2412,
	title = {                    31P MAS-NMR studies of CaO-P
                    2O
                    5 glass ceramics
},
	series = {Key Engineering MaterialsKey Eng Mat},
	volume = {309-311 I},
	year = {2006},
	note = {Cited By (since 1996): 1Export Date: 21 November 2012Source: ScopusCODEN: KEMAELanguage of Original Document: EnglishCorrespondence Address: Dias, A.G.; Instituto de Engenharia Biom{\'e}dica (INEB), Laborat{\'o}rio de Biomateriais, Rua do Campo Alegre 823, 4150-180 Porto, Portugal; email: agdias@fe.up.ptReferences: J{\"a}ger, C., Hartmann, P., Witter, R., Braun, M., (2000) J. Non-cryst. Solids, 263, p. 61;Hartmann, P., Vogel, J., Schnabel, B., (1994) J. Non-cryst. Solids, 176, p. 157; 
Dias, A.G., Lopes, M.A., Gibson, I.R., Santos, J.D., (2003) J. Non-cryst. Solids, 330, p. 81; 
Dias, A.G., Skakle, J.M.S., Gibson, I.R., Lopes, M.A., Santos, J.D., (2005) J. Non-cryst. Solids, 351, p. 810; 
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Kirkpatrick, R.J., Brown, R.K., (1995) Sol. Stat. Nucl. Mag. Resonance, 5, p. 9
},
	month = {2006///},
	pages = {301 - 304},
	abstract = {This work reports the structure of two glass ceramics prepared in the calcium phosphate system, MK5B and MT13B, using                        31P MAS-NMR technique. The results obtained showed that the network of MK5B consisted mainly of Q
                        1 and Q
                        2 groups. Besides these two groups, MT13B material also present Q
                        3 units. The Q
                        n groups detected in both glass ceramics seem to be correlated to the crystalline phases present in their microstructure.
},
	keywords = {Biomaterials, calcium phosphate, Crystalline materials, Crystalline phases, Glass ceramics, Lime, MAS-NMR technique, Microstructure, NMR, Nuclear magnetic resonance spectroscopy},
	isbn = {10139826 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-33645382187\&partnerID=40\&md5=353cae72417fac19dba1115041250e95},
	author = {Dias, A.G. and Lopes, M.A. and Tsuru, K. and Hayakawa, S. and Santos, J.D. and Osaka{\textquoteright}, A.}
}
@article {2403,
	title = {Absorption and emission properties of Ho                    3+ doped lead-zinc-borate glasses
},
	journal = {Thin Solid FilmsThin Solid Films},
	volume = {515},
	year = {2006},
	note = {Cited By (since 1996): 18Export Date: 21 November 2012Source: ScopusCODEN: THSFAdoi: 10.1016/j.tsf.2005.12.085Language of Original Document: EnglishCorrespondence Address: Sooraj Hussain, N.; DEMM, Faculty of Eng. University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal; email: sooraj@fe.up.ptReferences: Song, J.H., Jong Heo, Park, S.H., (2003) J. Appl. Phys., 93, p. 9441;Chen, Q., Ferraris, M., Menke, Y., Milanese, D., Monchiero, E., (2003) J.Non-Cryst. Solids, 324, p. 1; 
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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 {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; 
Giannoudis, P.V., Dinopoulos, H., Tsiridis, E., (2005) Injury, 36 S, pp. S20; 
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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.}
}
@article {2415,
	title = {Cultivation of human embryonic stem cells without the embryoid body step enhances osteogenesis in vitro},
	journal = {Stem CellsStem Cells},
	volume = {24},
	year = {2006},
	note = {Cited By (since 1996): 80Export Date: 21 November 2012Source: ScopusCODEN: STCEEdoi: 10.1634/stemcells.2005-0383Language of Original Document: EnglishCorrespondence Address: Langer, R.S.; Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, MA 02139-4307, United States; email: rlanger@mit.eduChemicals/CAS: apatite, 64476-38-6; calcium, 7440-70-2; collagen, 9007-34-5; dexamethasone, 50-02-2; hydroxyapatite, 1306-06-5, 51198-94-8; phosphorus, 7723-14-0; alkaline phosphatase, 9001-78-9; calcium phosphate, 10103-46-5, 13767-12-9, 14358-97-5, 7758-87-4; osteocalcin, 136461-80-8; Alkaline Phosphatase, 3.1.3.1; Calcium Phosphates; Collagen, 9007-34-5; Osteocalcin, 104982-03-8; calcium phosphate, 10103-46-5References: Langer, R., Vacanti, J.P., Tissue engineering (1993) Science, 260, pp. 920-926;Alsberg, E., Anderson, K.W., Albeiruti, A., Cell-interactive alginate hydrogels for bone tissue engineering (2001) J Dent Res, 80, pp. 2025-2029; 
Bhatia, M., Derivation of the hematopoietic stem cell compartment from human embryonic stem cell lines (2005) Ann N Y Acad Sci, 1044, pp. 24-28; 
Thomson, J.A., Itskovitz-Eldor, J., Shapiro, S.S., Embryonic stem cell lines derived from human blastocysts (1998) Science, 282, pp. 1145-1147. , erratum in Science 1998 282:1827; 
Perlingeiro, R.C., Kyba, M., Daley, G.Q., Clonal analysis of differentiating embryonic stem cells reveals a hematopoietic progenitor with primitive erythroid and adult lymphoid-myeloid potential (2001) Development, 128, pp. 4597-4604; 
Zur Nieden, N.I., Kempka, G., Ahr, H.J., In vitro differentiation of embryonic stem cells into mineralized osteoblasts (2003) Differentiation, 71, pp. 18-27; 
Bourne, S., Polak, J.M., Hughes, S.P., Osteogenic differentiation of mouse embryonic stem cells: Differential gene expression analysis by cDNA microarray and purification of osteoblasts by cadherin-11 magnetically activated cell sorting (2004) Tissue Eng, 10, pp. 796-806; 
Buttery, L.D., Bourne, S., Xynos, J.D., Differentiation of osteoblasts and in vitro bone formation from murine embryonic stem cells (2001) Tissue Eng, 7, pp. 89-99; 
Shimko, D.A., Burks, C.A., Dee, K.C., Comparison of in vitro mineralization by murine embryonic and adult stem cells cultured in an osteogenic medium (2004) Tissue Eng, 10, pp. 1386-1398; 
Bronson, S.K., Bone nodule formation via in vitro differentiation of murine embryonic stem cells (2003) Methods Enzymol, 365, pp. 241-251; 
Sottile, V., Thomson, A., McWhir, J., In vitro osteogenic differentiation of human ES cells (2003) Cloning Stem Cells, 5, pp. 149-155; 
Bielby, R.C., Boccaccini, A.R., Polak, J.M., In vitro differentiation and in vivo mineralization of osteogenic cells derived from human embryonic stem cells (2004) Tissue Eng, 10, pp. 1518-1525; 
Cao, T., Heng, B.C., Ye, C.P., Osteogenic differentiation within intact human embryoid bodies result in a marked increase in osteocalcin secretion after 12 days of in vitro culture, and formation of morphologically distinct nodule-like structures (2005) Tissue Cell, 37, pp. 325-334; 
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Draper, J.S., Pigott, C., Thomson, J.A., Surface antigens of human embryonic stem cells: Changes upon differentiation in culture (2002) J Anat, 200, pp. 249-258; 
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Schmitt, B., Ringe, J., Haupl, T., BMP2 initiates chondrogenic lineage development of adult human mesenchymal stem cells in high-density culture (2003) Differentiation, 71, pp. 567-577; 
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Wei, C.L., Miura, T., Robson, P., Transcriptome profiling of human and murine ESCs identifies divergent paths required to maintain the stem cell state (2005) Stem Cells, 23, pp. 166-185; 
Heng, B.C., Cao, T., Stanton, L.W., Strategies for directing the differentiation of stem cells into the osteogenic lineage in vitro (2004) J Bone Miner Res, 19, pp. 1379-1394
},
	month = {2006///},
	pages = {835 - 843},
	abstract = {Osteogenic cultures of embryonic stem cells (ESCs) are predominately derived from three-dimensional cell spheroids called embryoid bodies (EBs). An alternative method that has been attempted and merits further attention avoids EBs through the immediate separation of ESC colonies into single cells. However, this method has not been well characterized and the effect of omitting the EB step is unknown. Herein, we report that culturing human embryonic stem cells (hESCs) without the EB stage leads to a sevenfold greater number of osteogenic cells and to spontaneous bone nodule formation after 10-12 days. In contrast, when hESCs were differentiated as EBs for 5 days followed by plating of single cells, bone nodules formed after 4 weeks only in the presence of dexamethasone. Furthermore, regardless of the inclusion of EBs, bone matrix formed, including cement line matrix and mineralized collagen, which displayed apatitic mineral (PO                        4) with calcium-to-phosphorous ratios similar to those of hydroxyapatite and human bone. Together these results demonstrate that culturing hESCs without an EB step can be used to derive large quantities of functional osteogenic cells for bone tissue engineering. {\textcopyright}AlphaMed Press.
},
	keywords = {alkaline phosphatase, Apatite, article, bone development, bone growth, bone matrix, bone mineralization, Bone tissue engineering, Calcium, calcium phosphate, Calcium phosphates, Cell Culture Techniques, cell differentiation, cell separation, Collagen, collagen synthesis, culture technique, cytology, dexamethasone, embryo, embryo culture, Embryoid bodies, embryonic stem cell, extracellular matrix, human, human cell, human embryo, Human embryonic stem cells, Humans, hydroxyapatite, in vitro study, Matrix characterization, metabolism, methodology, ossification, osteocalcin, Osteogenesis, Osteogenic cell frequency, phosphorus, spheroid cell, Tissue engineering, totipotent stem cell, Totipotent Stem Cells},
	isbn = {10665099 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-33745504422\&partnerID=40\&md5=214785ea9403886207b058cb87570338},
	author = {Karp, J.M. and Ferreira, L.S. and Khademhosseini, A. and Kwon, A.H. and Yeh, J. and Langer, R.S.}
}
@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; 
Flanagan, A., Massey, H., Wilson, C., Vellodi, A., Horton, M.A., Steward, C., Macrophage colony-stimulating factor and receptor activator NF-κ B ligand fail to rescue osteoclast-poor human malignant infantile osteopetrosis in vitro (2002) Bone, 30, pp. 85-90; 
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Patel, N., Best, S.M., Gibson, I.R., Hing, K.A., Damien, E., Revell, P.A., 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; 
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; 
Gibson, I.R., Hung, J., Best, S.M., Bonfield, W., Enhanced in vitro cell activity and surface apatite layer formation on novel silicon-substituted hydroxyapatites (1999) Bioceramics, 12, pp. 191-194. , Ohgushi H, Hastings GW, Yoshikawa T, editors. Nara, Japan: World Scientific Publishing; 
Jha, L.J., Best, S.M., Santos, J.D., Gibson, I.R., Bonfield, W., Silicon-substituted apatites and process for the preparation thereof. Worldwide Pat PCT/GB97/02325, 1999Gibson, I., Best, S.M., Bonfield, W., Chemical characterization of silicon-substituted hydroxyapatite (1999) J Biomed Mater Res, 44 B, pp. 422-428; 
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; 
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Kong, Y.Y., Feige, U., Sarosi, I., Bolon, B., Tafuri, A., Morony, S., Cappareli, C., Boyle, W.J., OPGL is a key regulator of osteoclastogenesis, lymphocyte development and lymph-node organogenesis (1999) Nature, 402, pp. 304-309; 
Wittrant, Y., Thepleyre, S., Couillaud, S., Dunstan, C., Heymann, D., R{\'e}dini, F., Relevance of an in vitro osteoclastogenesis system to study receptor activator of NF-κ B ligand and osteoprotegerin biological activities (2004) Exp Cell Res, 93, pp. 292-301; 
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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 {2411,
	title = {Histological and scanning electron microscopy analyses of bone/implant interface using the novel Bonelike{\textregistered} synthetic bone graft},
	journal = {Journal of Orthopaedic ResearchJ. Orthop. Res.},
	volume = {24},
	year = {2006},
	note = {Cited By (since 1996): 6Export Date: 21 November 2012Source: ScopusCODEN: JOREDdoi: 10.1002/jor.20117Language of Original Document: EnglishCorrespondence Address: Santos, J.D.; DEMM, Faculty of Engg., University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal; email: jdsantos@fe.up.ptChemicals/CAS: Bone SubstitutesTradenames: Bonelike; JSM 630IF, JeolManufacturers: JeolReferences: Peter, P., Heinrich, R., Meinrad, P., (2003) Orthopaedic Issues in Osteoporosis, , YH An, editor. Boca Raton, FL: CRC Press;Hench, L.L., Wilson, J., (1999) An Introduction to Bioceramics, , Singapore: World Scientific Publishing Co. Pvt. Ltd; 
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Write, S., The bone-graft market in Europe. Commentary extracted from a report entitled "Emerging technologies in orthopedics I.: Bone graft substitutes, bone growth stimulators and bone growth factors" (1999), pp. 591-595. , London: Datamonitor plcBotelho, C.M., Brooks, R.A., Best, S.M., Biological and physical-chemical characterization of phase pure HA and si-substituted hydroxyapatite by different microscopy techniques (2004) Key Eng Mater, 254, p. 845; 
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Lobato, J.V., Hussain, N.S., Botelho, C.M., Assessment of the potential of Bonelike{\textregistered} graft for bone regeneration by using an animal model (2005) Key Eng Mater, 284-286, pp. 877-880; 
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Laurencin, C.T., (2003) Bone Graft Substitutes, , West Conshohocken, PA: ASTM International
},
	month = {2006///},
	pages = {953 - 958},
	abstract = {Synthetic bone grafts provide an alternative to autografts and allografts. Bonelike{\textregistered} is a patented synthetic bone graft that mimics the mineral composition of bone. The aim of the present work was to assess the biological behavior of Bonelike{\textregistered} graft in humans, before using the material in orthopedic applications of bone regeneration, for example, in opening wedge high tibial osteotomies for medial knee osteoarthritis. Bonelike{\textregistered} granules were implanted in cortical bone of 11 patients undergoing osteotomies, and new bone formation, osteoconductive properties, and resorption characteristics of the granules were analyzed. The granules ranged from 500 to 1000 μm and were implanted in the lateral aspect of the tibia. The patients{\textquoteright} mean age was 59 years (range 48 to 70 years); there were eight women and three men, all suffering from medial compartment osteoarthritis of the knee. At surgery, a 1 {\texttimes} 1 {\texttimes} 1-cm cortical defect was created 3 cm distal to the entry point of the screws, in line with the long axis of tibia. The implanted Bonelike{\textregistered} graft sample was extracted for analysis during removal of the metallic prosthesis after implantation times of 6, 9, and 12 months. Radiological follow-up, scanning electron microscopy, histological analysis, and histomorphometric measurements were conducted on the retrieved samples to assess bone regeneration in the defect area. Osteoconductive capacity was demonstrated by extensive mature bone formation around the implanted granules and high levels of percentage bone-to-graft contact (from 67-84\%). Bonelike{\textregistered} acted as an excellent bioactive scaffold, allowing the migration, proliferation, and differentiation of bone cells on its surface, and therefore regeneration of the defects was achieved in a rapid, controlled manner. Our results suggest that Bonelike{\textregistered} graft is an excellent candidate for orthopedic applications where rapid new bone formation is a fundamental requirement. {\textcopyright} 2006 Orthopaedic Research Society. Published by Wiley Periodicals, Inc.},
	keywords = {adult, aged, article, Bone, Bone and Bones, bone cell, bone conduction, bone development, Bone graft, bone prosthesis, bone radiography, Bone Regeneration, bone screw, Bone Substitutes, bone transplantation, Bonelike{\textregistered}, cell differentiation, cell migration, cell proliferation, Clinical applications, clinical article, controlled study, Female, follow up, Histological analysis, histology, human, Humans, knee osteoarthritis, male, Microscopy, Electron, Scanning, Middle Aged, morphometrics, orthopedics, ossification, Osteoconduction, Osteogenesis, osteolysis, Pathology, priority journal, Prostheses and Implants, prostheses and orthoses, prosthesis material, Scanning electron microscopy, surgical technique, Synthetic bone graft, tibia osteotomy, ultrastructure},
	isbn = {07360266 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-33744465532\&partnerID=40\&md5=ef625229b1616ab24217a9235a89286e},
	author = {Gutierres, M. and Hussain, N.S. and Lopes, M.A. and Alfonso, A. and Cabral, A.T. and Almeida, L. and Santos, J.D.}
}
@article {2391,
	title = {Human osteoblast response to silicon-substituted hydroxyapatite},
	journal = {Journal of Biomedical Materials Research - Part AJ. Biomed. Mater. Res. Part A},
	volume = {79},
	year = {2006},
	note = {Cited By (since 1996): 33Export Date: 21 November 2012Source: ScopusCODEN: JBMRCdoi: 10.1002/jbm.a.30806PubMed ID: 16871624Language of Original Document: EnglishCorrespondence Address: Brooks, R.A.; Orthopaedic Research Unit, Box 180, Addenbrooke{\textquoteright}s Hospital, Hills Road, Cambridge CB2 3QZ, United Kingdom; email: rb10003@cam.ac.ukChemicals/CAS: alkaline phosphatase, 9001-78-9; glycerol 2 phosphate, 17181-54-3; hydrocortisone, 50-23-7; hydroxyapatite, 1306-06-5, 51198-94-8; osteocalcin, 136461-80-8; silicon, 7440-21-3; tetracycline, 23843-90-5, 60-54-8, 64-75-5; Collagen Type I; Durapatite, 1306-06-5; ectonucleotide pyrophosphatase phosphodiesterase 1, EC 3.1.4.1; Minerals; Osteocalcin, 104982-03-8; Phosphoric Diester Hydrolases, EC 3.1.4.-; Pyrophosphatases, EC 3.6.1.-; Silicon, 7440-21-3References: Hench, L., Splinter, R., Allan, W., Greenlee, T., Bonding mechanism at the interface of ceramic prosthetic materials (1972) J Biomed Mater Res, 2, pp. 117-141;Ducheyne, P., Hench, L., Kagan, A., Martens, M., Burssens, A., Mulier, J., The effect of hydroxyapatite impregnation on skeletal bonding of porous coated implants (1980) J Biomed Mater Res, 14, pp. 225-237; 
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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 {2422,
	title = {In vivo performance of biodegradable calcium phosphate glass ceramics using the rabbit model: Histological and SEM observation},
	journal = {Journal of Biomaterials ApplicationsJ. Biomater. Appl.},
	volume = {20},
	year = {2006},
	note = {Cited By (since 1996): 10Export Date: 21 November 2012Source: ScopusCODEN: JBAPEdoi: 10.1177/0885328206052466Language of Original Document: EnglishCorrespondence Address: Santos, J.D.; Instituto de Engenharia Biom{\'e}dica (INEB), Laborat{\'o}rio de Biomateriais, Rua do Campo Alegre, 823, 4150-180 Porto, Portugal; email: jdsantos@fe.up.ptChemicals/CAS: calcium phosphate, 10103-46-5, 13767-12-9, 14358-97-5, 7758-87-4; Bone Substitutes; calcium phosphate, 10103-46-5; Calcium Phosphates; CeramicsReferences: Parikh, S.N., Bone Graft Substitutes in Modern Orthopedics (2002) Orthopedics, 25 (11), pp. 1301-1309;Tomford, W.W., Bone Allografts: Past, Present and Future (2000) Cell and Tissue Banking, 1, pp. 105-109; 
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Koerten, H.K., van der Meulen, J., Degradation of Calcium Phosphate Ceramics (1999) Journal of Biomedical Materials Research, 44 (1), pp. 78-86; 
Kwon, S.H., Jun, Y.K., Hong, S.H., Kim, H.E., Synthesis and Dissolution Behavior of Beta-TCP and HA/Beta-TCP Composite Powders (2003) Journal of the European Ceramic Society, 23 (7), pp. 1039-1045; 
Lu, J.X., Gallur, A., Flautre, B., Anselme, K., Descamps, M., Thierry, B., Comparative Study of Tissue Reactions to Calcium Phosphate Ceramics among Cancellous, Cortical, and Medullar Bone Sites in Rabbits (1998) Journal of Biomedical Materials Research, 42 (3), pp. 357-367; 
Yuan, H.P., De Bruijn, J.D., Li, Y.B., Feng, J.Q., Yang, Z.J., De Groot, K., Zhang, X.D., Bone Formation Induced by Calcium Phosphate Ceramics in Soft Tissue of Dogs: A Comparative Study Between Porous α-TCP and Β-TCP (2001) Journal of Materials Science-Materials in Medicine, 12 (1), pp. 7-13; 
Jiaxi, L., Michel, D., Jacques, D., Gilles, K., Pierre, H., Jacques, L., The Biodegradation Mechanism of Calcium Phosphate Biomaterials in Bone Journal of Biomedical Materials Research (Applied Biomaterials), 63, pp. 408-412; 
Legeros, R.Z., Biodegradation and Bioresorption of Calcium Phosphate Ceramics (1993) Clinic Materials, 14, pp. 65-88; 
Yli-Urpo, H., Vallittu, P.K., Narhi, T.O., Forsback, A.P., Vakiparta, M., Release of Silica, Calcium, Phosphorus, and Fluoride from Glass Ionomer Cement Containing Bioactive Glass (2004) Journal of Biomaterials Applications, 19 (1), pp. 5-20; 
John, A., Varma, H.K., Kumari, T.V., Surface Reactivity of Calcium Phosphate based Ceramics in a Cell Culture System (2003) Journal of Biomaterials Applications, 18 (1), pp. 63-78; 
Dias, A.G., Lopes, M.A., Gibson, I.R., Skakle, J.M.S., Tsuru, K., Hayakawa, S., Osaka, A., Santos, J.D., Studies of Calcium Phosphate Glass Ceramic Containing TiO 2 and MgO Ions: Dissolution Behavior, , vitro (submitted)
},
	month = {2006///},
	pages = {253 - 266},
	abstract = {Two MK5 (45CaO-45P                        2O
                        5-5MGO-5K
                        2O, in mol\% and MT13 (45CaO-37P
                        2O
                        5-5MgO-13TiO 
                        2, in mol\%) glasses are prepared in the meta- and pyrophosphate regions and crystallized to obtain MK5B and MT13B, respectively. MK5B was obtained by controlled crystallization, and MT13B by powder sintering. As a result of these heat treatment processes, the crystalline phases precipitated in the glassy matrix are KCa(PO
                        3)
                        3, β-Ca(PO
                        3)
                        2, β-Ca
                        2P
                        2O
                        7 and Ca
                        4P
                        6O
                        19 phases for MK5B and CaTi
                        4(PO
                        4)
                        6, TiP
                        2O
                        7, α- and β-Ca
                        2P
                        2O
                        7 phases for MT13B. To assess the in vivo biological behavior of these glass ceramics, a mixed granulometry in the range 250-355 μm and 355-425 μm with a ratio of 1/1 was implanted for 2, 4, and 12 weeks in the tibiae of Japanese white rabbits. The results showed that the in vivo behavior was strongly affected by their solubility. All implanted materials, MK5B and MT13B, and β-tricalcium phosphate (β-TCP) as control material, showed signs of degradation in vivo. However, the levels of degradation were quite different throughout the implantation periods. The highest degradation was observed for MK5B glass ceramic and the lowest for MT13B with β-TCP in-between. All implanted materials allow for new bone formation in the bone defect area. At the longest implantation period (12 weeks), the MT13B and β-TCP materials were almost completely surrounded by new bone tissue, whereas MK5B showed some unfilled spaces. This behavior is discussed in terms of the high degradation observed in previous studies. {\textcopyright} 2006 SAGE Publications.
},
	keywords = {Absorbable Implants, animal, Animals, article, Biodegradable glass ceramics, biodegradable implant, Biodegradation, bone prosthesis, Bone Substitutes, bone tissue, Calcium Compounds, calcium phosphate, Calcium phosphates, ceramics, chemistry, disease model, Disease Models, Animal, glass, Glass ceramics, histology, Imaging techniques, In vivo testing, materials testing, Optical microscopy, Pathology, rabbit, Rabbits, Scanning electron microscopy, tibia fracture, Tibial Fractures, Tissue, treatment outcome, X ray diffraction analysis},
	isbn = {08853282 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-31644441745\&partnerID=40\&md5=68f1ef16695697c5125c50fd348eccb0},
	author = {Dias, A.G. and Lopes, M.A. and Santos, J.D. and Afonso, A. and Tsuru, K. and Osaka, A. and Hayakawa, S. and Takashima, S. and Kurabayashi, Y.}
}
@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; 
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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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Kanematsu, M., Yoshimura, K., Takaoki, M., Sato, A., Vector-averaged gravity regulates gene expression of receptor activator of NF-κB (RANK) ligand and osteoprotegerin in bone marrow stromal cells via cyclic AMP/protein kinase A pathway (2002) Bone, 30, pp. 553-558; 
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Thomas, T., Gori, F., Khosla, S., Jensen, M.D., Burguera, B., Riggs, B.L., Leptin acts on human marrow stromal cells to enhance differentiation to osteoblasts and to inhibit differentiation to adipocytes (1999) Endocrinology, 140, pp. 1630-1638; 
Udagawa, N., Takahashi, N., Yasuda, H., Mizuno, A., Itoh, K., Ueno, Y., Shinki, T., Suda, T., Osteoprotegerin produced by osteoblasts is an important regulator in osteoclast development and function (2000) Endocrinology, 141, pp. 3478-3484; 
Wamoto, I., Fujino, T., Douchi, T., The leptin receptor in human osteoblasts and the direct effect of leptin on bone metabolism (2004) Gynecol Endocrinol, 19, pp. 97-104; 
Yasuda, H., Shima, N., Nakagawa, N., Yamaguchi, K., Kinosaki, M., Mochizuki, S., Tomoyasu, A., Suda, T., Osteoclast differentiation factor is a ligand for osteoprotegerin/ osteoclastogenesis-inhibitory factor and is identical to TRANCE/RANKL (1998) Proc Natl Acad Sci USA, 95, pp. 3597-3602
},
	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 {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},
	note = {Cited By (since 1996): 15Export Date: 21 November 2012Source: ScopusCODEN: JBMRCdoi: 10.1002/jbm.a.30737PubMed ID: 16646067Language of Original Document: EnglishCorrespondence Address: Ortiz, C.; Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, United States; email: coritz@mit.eduChemicals/CAS: hydroxyapatite, 1306-06-5, 51198-94-8; silicon, 7440-21-3; thiol derivative, 13940-21-1; Biocompatible Materials; Durapatite, 1306-06-5; Silicon, 7440-21-3References: Carlisle, E.M., Silicon: A possible factor in bone calcification (1970) Science, 167, pp. 279-280;Gibson, I.R., Best, S.M., Bonfield, W., Chemical characterization of silicon-substituted hydroxyapatite (1999) J Biomed Mater Res, 44, pp. 422-428; 
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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 {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; 
Karabuda, C., Ozdemir, O., Tosun, T., Anil, A., Olgac, V., (2001) J. Periodontol., 72, p. 1436; 
Placko, H.E., Mishra, S., Weimer, J.J., Lucas, L.C., (2000) Int. J. Oral Maxillofac. Implants, 15, p. 355; 
Jung, Y.C., Han, C.H., Lee, I.S., Kim, H.E., (2001) Int. J. Oral Maxillofac. Implants, 16, p. 809; 
Kong, Y.M., Kim, D.H., Kim, H.E., Heo, S.J., Koak, J.Y., (2002) J. Biomed. Mater. Res., Part B Appl. Biomater., 63, p. 714; 
Schutz, R.W., Thomas, D.E., (1987) Metals Handbook. ed. 9, 13, p. 669. , Davis J.R. (Ed), American Society for Metals, Cleveland, OH; 
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Lavos-Valereto, I.C., Wolynec, S., Deboni, M.C.Z., Konig Jr., B., (2001) J. Biomed. Mater. Res., Part B Appl. Biomater., 58, p. 727; 
Lacefield, W.R., (1993) An Introduction to Bioceramics, , Hench L.L., and Wilsion J. (Eds), World Scientific, Singapore; 
Golec, T.S., Krauser, J.T., (1992) Dent. Clin. North Am., 36, p. 39; 
Block, M.S., Kkent, J.N., (1992) Dent. Clin. North Am., 36, p. 27; 
Yukna, R.A., (1992) Dent. Clin. North Am., 36, p. 97; 
Baltag, I., Watanabe, K., Kusakari, H., Taoyuki, N., Miyakawa, O., Kobayashi, M., Ito, N., (2000) J. Biomed. Mater. Res., Part B Appl. Biomater., 53, p. 76; 
Wheeler, S.L., (1996) Int. J. Oral Maxillofac. Implants, 11, p. 340; 
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(1981) Science and Medical Applications of Hydroxyapatite, , Conish H., Aoki H., and Sawai K. (Eds), Takyama Press Systems Centre Co., Tokyo; 
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Lopes, M.A., Santos, J.D., Monteiro, F.J., Knowles, J.C., (1998) J. Biomed. Mater. Res., 39, p. 244; 
Lopes, M.A., Monteiro, F.J., Santos, J.D., (1999) Biomaterials, 20, p. 2085; 
Lopes, M.A., Silva, R.F., Monteiro, F.J., Santos, J.D., (1999) Biomaterials, 21, p. 749; 
Lopes, M.A., Knowles, J.C., Santos, J.D., Monteiro, F.J., Olsen, I., (2000) Biomaterials, 21, p. 1165; 
Lopes, M.A., Knowles, J.C., Santos, J.D., Monteiro, F.J., Oslen, I., (1998) J. Biomed. Mater. Res., 41, p. 649; 
Ferraz, M.P., Fernandes, M.H., Santos, J.D., Monteiro, F.J., (2001) J. Mater. Sci., Mater. Med., 12, p. 629; 
Ferraz, M.P., Monteiro, F.J., Serro, A.P., Saramago, B., Gibson, I.R., Santos, J.D., (2001) Biomaterials, 22, p. 3105; 
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Ferraz, M.P., Fernandes, M.H., Santos, J.D., Monteiro, F.J., (1999) J. Mater. Sci., Mater. Med., 10, p. 567; 
Lobato, J.V., Sooraj Hussain, N., Sousa, R.C., Maur{\'\i}cio, A.C., Santos, J.D., (2005) Br. J. Oral Maxillofac. Surg., , (Communicated); 
Br{\"a}nemark, P.I., Svensson, B., van Steenberghe, D., (1995) Clin. Oral Implants Res., 6 (4), p. 227; 
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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.}
}
@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.}
}
@book {2433,
	title = {Biological behaviour of Bonelike{\textregistered} graft implanted in the tibia of humans},
	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: Gutierres, M.; Faculdade de Medicina da Universidade do Porto, Hospital de S{\~a}o Jo{\~a}o, Largo Hern{\^a}ni Monteiro, 4200 Porto, Portugal; email: m.gutierres@clix.ptReferences: Bauer, T.W., Muschler, G.F., Bone Graft Materials. An Overview of the Basic Science (2000) Clin orthop Rel. Res, 371, pp. 10-27;Perry, C.R., Bone Repair Techniques, Bone Graft and Bone Graft Substitutes (1999) Clin Orthop Rel Res, 360, pp. 71-86; 
Ilan, D.I., Ladd, A.L., Bone graft substitutes (2003) Operative Tech. in plastic and Reconstructive Surgery, 9 (4), pp. 151-160; 
Santos, J.D., Hastings, G.W., Knowles, J.C., Sintered Hydroxyapatite Compositions and Method for the Preparation Thereof European Patent WO 0068164Lopes, M.A., Glass reinforced hydroxyapatite composites: Structural, Physicochemical characterisation and Biological performance (1999), PhD thesis, FEUP, University of Porto, PortugalCoventry, M.B., Osteotomy of the upper portion of the tibia for degenerative arthritis of the knee: A preliminary report (1965) J. Bone Joint Surg.Am, 47, p. 984; 
Lopes, M.A., Santos, J.D., (2001) J.Biomed Mat Res, 54, pp. 463-469
},
	month = {2005///},
	pages = {1041 - 1044},
	abstract = {This paper reports the ability of Bonelike{\textregistered} to regenerate bone defected areas when implanted in the tibia of 3 patients (average age of 59 years) during a high tibial osteotomy (HTO) to treat medial compartment osteoarthritis of the knee. Bonelike{\textregistered} is a synthetic bone graft designed to mimic the inorganic composition of bone using a patent process that consists of liquid sintering hydroxyapatite in the presence of CaO-P                        2O
                        5 based glass. The preliminary clinical evaluation performed showed that an intimate contact between new formed bone and Bonelike{\textregistered} was established (67{\textpm}10\%), with no fibrous interface. Therefore, Bonelike{\textregistered} is a single-handedly viable osteoconductive synthetic grafting material as it has been demonstrated from the profiles of radiological, histological and scanning electron microscopy analyses for the six months implantation period.
},
	keywords = {Biological behavior, Bone, Bonelike{\textregistered} graft, Clinical trials, histology, hydroxyapatite, Implants (surgical), Radiology, Scanning electron microscopy, Surgery, Synthetic grafting material},
	isbn = {10139826 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-33744540330\&partnerID=40\&md5=c7f109dc068a35ed53047b8426a85a1d},
	author = {Gutierres, M. and Hussain, N.S. and Afonso, A. and Almeida, L. and Cabral, T. 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; 
Rasmussen, J., Barsomian, G., Bergh, M., Enzymatically active recombinant glucocerebrosidase. U.S. patent 6451600. 17 September 2002Elstein, D., Itzchaki, M., Mankin, H.J., Skeletal involvement in Gaucher{\textquoteright}s disease (1997) Baillieres Clin Haematol, 10, pp. 793-816; 
Wenstrup, R.J., Roca-Espiau, M., Weinreb, N.J., Bembi, B., Skeletal aspects of Gaucher disease: A review (2002) Br J Radiol, 75 (SUPPL. 1), pp. A2-A12; 
Mistry, P.K., Wraight, E.P., Cox, T.M., Therapeutic delivery of proteins to macrophages: Implications for treatment of Gaucher{\textquoteright}s disease (1996) Lancet, 348, pp. 1555-1559; 
Gregoriadis, G., Neerunjun, D., Meade, T.W., Goolamali, S.K., Weereratne, H., Bull, G., Experiences after long-term treatment of a type I Gaucher disease patient with liposome-entrapped glucocerebroside: Beta-glucosidase (1980) Birth Defects Orig Artic Ser, 16, pp. 383-392; 
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Beutler, E., Dale, G.L., Guinto, D.E., Kuhl, W., Enzyme replacement therapy in Gaucher{\textquoteright}s disease: Preliminary clinical trial of a new enzyme preparation (1977) Proc Natl Acad Sci USA, 74, pp. 4620-4623; 
Belchetz, P.E., Crawley, J.C., Braidman, I.P., Gregoriadis, G., Treatment of Gaucher{\textquoteright}s disease with liposome-entrapped glucocerebroside: Beta-glucosidase (1977) Lancet, 2, pp. 116-117; 
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Busto, M.D., Ortega, N., Perez-Mateos, M., Effect of immobilization on the stability of bacterial and fungal beta-glucosidase (1997) Process Biochem, 32, pp. 441-449; 
Dashevsky, A., Protein loss by the microencapsulation of an enzyme (lactase) in alginate beads (1998) Int J Pharm, 161, pp. 1-5; 
Blandino, A., Macias, M., Cantero, D., Immobilization of glucose oxidase within calcium alginate gel capsules (2001) Process Biochem, 36, pp. 601-606; 
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Peters, M.C., Isenberg, B.C., Rowley, J.A., Mooney, D.J., Release from alginate enhances the biological activity of vascular endothelial growth factor (1998) J Biomater Sci Polym Ed, 9, pp. 1267-1278; 
Alsberg, E., Anderson, K.W., Albeiruti, A., Franceschi, R.T., Mooney, D.J., Cell-interactive alginate hydrogels for bone tissue engineering (2001) J Dent Res, 80, pp. 2025-2029; 
Rowley, J.A., Madlambayan, G., Mooney, D.J., Alginate hydrogels as synthetic extracellular matrix materials (1999) Biomaterials, 20, pp. 45-53; 
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(1993) Iodine-125. A Guide to Radioiodination Techniques: Amersham Life Science, , Amersham Place, Little Chalfont, Bucks: Amersham International pic; 64 pp; 
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Sa Miranda, M.C., Aerts, J.M., Pinto, R.A., Magalhaes, J.A., Barranger, J.A., Tager, J.M., Schram, A.W., Heterogeneity in human acid beta-glucosidase revealed by cellulose-acetate electrophoresis (1988) Biochim Biophys Acta, 965, pp. 163-168; 
Smidsrod, O., Draget, K.I., Chemistry and physical properties of alginates (1996) Carbohyd Eur, 14, pp. 6-13; 
Gaserod, O., Sannes, A., Skjak-Braek, G., Microcapsules of alginate-chitosan. II. A study of capsule stability and permeability (1999) Biomaterials, 20, pp. 773-783; 
Aslani, P., Kennedy, R.A., Studies on diffusion in alginate gels. I. Effect of cross-linking with calcium or zinc ions on diffusion of acetaminophen (1996) J Control Release, 42, pp. 75-82
},
	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 {2458,
	title = {Bonelike{\textregistered}/PLGA hybrid materials for bone regeneration: Preparation route and physicochemical characterisation},
	journal = {Journal of Materials Science: Materials in MedicineJ. Mater. Sci. Mater. Med.},
	volume = {16},
	year = {2005},
	note = {Cited By (since 1996): 8Export Date: 21 November 2012Source: ScopusCODEN: JSMMEdoi: 10.1007/s10856-005-6687-yLanguage of Original Document: EnglishCorrespondence Address: Santos, J.D.; INEB - Inst. de Engenharia Biomedica, Laborat{\'o}rio de Biomateriais, Rua do Campo Alegre, 823, 4150-180 Porto, Portugal; email: jdsantos@fe.up.ptChemicals/CAS: hydroxyapatite, 1306-06-5, 51198-94-8; lactic acid, 113-21-3, 50-21-5; polyglycolic acid, 26124-68-5; cyclohexane, 110-82-7; methanol, 67-56-1; polyglactin, 26780-50-7, 34346-01-5; silane, 7803-62-5; water, 7732-18-5; Durapatite, 1306-06-5; Lactic Acid, 50-21-5; Polyglycolic Acid, 26009-03-0; polylactic acid-polyglycolic acid copolymer; Polymers; SilanesTradenames: Bonelike, AldrichManufacturers: AldrichReferences: Aoki, H., (1991) Science and Medical Applications of Hydroxyapatite, , JAAS;Glimcher, M.J., (1976) Handbook of Physiology, Endocrinology, , edited by R. O. Greep and E. B. Astwood (American Physiological Society, Washington D.C.); 
Shors, E.C., Holmes, R.E., (1993) An Introduction to Bioceramics, p. 181. , edited by L. L. Hench and J. Wilson (World Scientific, Hong-Kong); 
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Lopes, M.A., Monteiro, F.J., Santos, J.D., (1999) J. Biomed. Mater. Res., 48, p. 734; 
Lopes, M.A., Monteiro, F.J., Santos, J.D., (1999) Biomaterials, 20, p. 2085; 
Lopes, M.A., Silva, R.F., Monteiro, F.J., Santos, J.D., (2000) Biomaterials, 21, p. 749; 
Lopes, M.A., Knowles, J.C., Santos, J.D., (2000) Biomaterials, 21, p. 1905; 
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Ferraz, M.P., Fernandes, M.H., Santos, J.D., Monteiro, F.J., (2001) J. Mater. Sci.: Mater. Med., 12, p. 629; 
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Eufinger, S., Van Ooij, W.J., Conners, K.D., (1996) Surf. Interf. Anal., 24, p. 841
},
	month = {2005///},
	pages = {253 - 259},
	abstract = {Bonelike{\textregistered}/PLGA hybrid materials have been developed using γ-MPS as silane-coupling agent between the inorganic and organic phases for controlled drug delivery applications. Silanization showed to be more effective when cyclohexane was used as a non-polar solvent (nP method) due to a chemical interaction between Bonelike{\textregistered}, and the silane film, while by using a 95/5 (V/V) methanol/water as a polar solvent (P method), a much thinner film was achieved. Functional groups of PLGA, such as the carbonyl group (C=O), were identified using Raman and FTIR-ATR analysis and therefore these groups may be used to link therapeutic molecules. These novel hybrid materials prepared by combining silanization and post-hybridisation processes are expected to find use in medical applications of bone regeneration and as drug delivery carrier for therapeutic molecules. {\textcopyright} 2005 Springer Science + Business Media, Inc.},
	keywords = {analytic method, article, Biological materials, Bone, Bone Regeneration, carbonyl derivative, chemical bond, chemical interaction, chemical reaction, Chemical reactions, chemistry, Chemistry, Physical, cyclohexane, Drug delivery, drug delivery system, Drug therapy, Durapatite, film, Fourier transform infrared spectroscopy, Hybrid materials, hybridization, hydroxyapatite, infrared spectroscopy, Lactic Acid, methanol, methodology, Microscopy, Electron, Scanning, Molecules, physical chemistry, polyglactin, polyglycolic acid, polylactic acid polyglycolic acid copolymer, polylactic acid-polyglycolic acid copolymer, polymer, Polymers, priority journal, Raman spectrometry, Raman spectroscopy, reaction analysis, Scanning electron microscopy, silane, silane derivative, Silanes, Silanization, solvent effect, Solvents, Spectroscopy, Fourier Transform Infrared, Spectrum Analysis, Raman, synthesis, Water, X ray, X-Rays},
	isbn = {09574530 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-15244353590\&partnerID=40\&md5=55644ee9e5b6fa323ca5693fafe0d8d7},
	author = {Oliveira, J.M. and Miyazaki, T. and Lopes, M.A. and Ohtsuki, C. and Santos, J.D.}
}
@article {2456,
	title = {In situ thermal and structural characterization of bioactive calcium phosphate glass ceramics containing TiO                    2 and MgO oxides: High temperature - XRD studies
},
	journal = {Journal of Non-Crystalline SolidsJ Non Cryst Solids},
	volume = {351},
	year = {2005},
	note = {Cited By (since 1996): 24Export Date: 21 November 2012Source: ScopusCODEN: JNCSBdoi: 10.1016/j.jnoncrysol.2005.01.060Language of Original Document: EnglishCorrespondence Address: Santos, J.D.; Depto. De Engenharia Metalurgica E., Faculdade De Engenharia Da Univ. D., Rua Dr. Roberto Frias, 4200-465 Porto, Portugal; email: jdsantos@fe.up.ptReferences: Franks, K., Abrahams, I., Georgiou, G., Knowles, J.C., (2001) Biomaterials, 22, p. 497;Rizkalla, A.S., Jones, D.W., Clarke, D.B., Hall, G.C., (1996) J. Biomed. Mater. Res., 32, p. 119; 
Navarro, M., Cl{\'e}ment, J., Ginebra, M.P., Avila, G., Mart{\'\i}nez, S., Planell, J.A., (2002) 17th European Society for Biomaterials Conference Proceedings, , Barcelona; 
Zhang, Y., Lopes, M.A., Santos, J.D., (2000) Bioceramics, 13, p. 643; 
Navarro, M., Cl{\'e}ment, J., Ginebra, M.P., Mart{\'\i}nez, S., Avila, G., Planell, J.A., (2002) Key Eng. Mater., 218-220, p. 275; 
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Dias, A.G., Tsuru, K., Hayakawa, S., Lopes, M.A., Santos, J.D., Osaka, A., (2004) Glass Technol., 45, p. 78; 
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},
	month = {2005///},
	pages = {810 - 817},
	abstract = {This study aims to develop glass ceramics in the calcium phosphate system that exhibit suitable properties to be used for biomedical applications. Calcium phosphate glasses with the incorporation of small additions of MgO and TiO                        2 oxides were prepared in the pyro-and orthophosphate regions. The glass ceramics were prepared by a controlled powder sintering process through heat-treatment at different temperatures, as defined by results from differential thermal analysis (DTA). The composition of the crystalline phases precipitated in the glassy matrix as a result of heat treatments at different temperatures, ranging from 681 to 725 {\textdegree}C, was determined from X-ray diffraction data. The sequence of phase crystallization in the mother glass was also studied in situ using high temperature X-ray diffraction (HT-XRD) analysis. Results showed that the first phases that precipitated in the glass matrix were α- and β-Ca
                        2P
                        2O
                        7 at 620 {\textdegree}C. A small amount of CaTi
                        4(PO
                        4)
                        6 appeared at 630 {\textdegree}C. At 650 {\textdegree}C the three phases α-Ca
                        2P
                        2O 
                        7, β-Ca
                        2P
                        2O
                        7 and CaTi 
                        4(PO
                        4)
                        6 were clearly presented with a small amount of TiP
                        2O
                        7 and finally at 660 {\textdegree}C all four phases were observed. Glass ceramics were also characterized using Raman and X-ray photoelectron spectroscopy. This study demonstrates that, by altering the heat treatment cycle, it is possible to prepare glass ceramics in the calcium phosphate system that contains different bioactive and biocompatible phases. {\textcopyright} 2005 Published by Elsevier B.V.
},
	keywords = {Biocompatibility, Calcium Compounds, Calcium phosphate systems, Cavity fillers, Computer software, Crystallinity, Differential thermal analysis, Fourier transform infrared spectroscopy, Glass ceramics, Magnesia, Phase analysis, Raman spectroscopy, Titanium dioxide, X ray diffraction analysis, X ray photoelectron spectroscopy},
	isbn = {00223093 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-17144386654\&partnerID=40\&md5=62eb1a16abd917d2ab97537b33d7197c},
	author = {Dias, A.G. and Skakle, J.M.S. and Gibson, I.R. and Lopes, M.A. and Santos, J.D.}
}
@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; 
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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; 
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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.}
}
@book {2437,
	title = {In vitro biodegradability of chitosan-organosiloxane hybrid membrane},
	series = {Key Engineering MaterialsKey Eng Mat},
	volume = {284-286},
	year = {2005},
	note = {Cited By (since 1996): 2Export Date: 21 November 2012Source: ScopusCODEN: KEMAELanguage of Original Document: EnglishCorrespondence Address: Tsuru, K.; Faculty of Engineering, Biomaterial Laboratory, Okayama University, Tsushima, Okayama 700-8530, Japan; email: kanji@cc.okayama-u.ac.jpReferences: Chandy, T., Sharma, P.C., (1990) Biomat Art Cells Art Org, 18, pp. 1-24;Ren, L., Tsuru, K., Hayakawa, S., Osaka, A., (2001) J Ceram Soc Japan, 109, pp. 403-408; 
Ren, L., Tsuru, K., Hayakawa, S., Osaka, A., (2002) Biomaterials, 23, pp. 4765-4773; 
Shirosaki, Y., Tsuru, K., Hayakawa, S., Osaka, A., Lopes, M.A., Santos, J.D., Fernandes, M.H., (2004) Key Engineering Materials, 254-256, pp. 857-860; 
Shirosaki, Y., Tsuru, K., Hayakawa, S., Osaka, A., Lopes, M.A., Santos, J.D., Fernandes, M.H., (2005) Biomaterials, 26, pp. 485-493; 
S. Prochazkova, K. M. V{\r a}rum, K. {\O}stgaard, Carbohydrate Polymers, 38 (1999), p. 115-122Brinker, J.C., Scherer, G.W., (1989) Sol-Gel Science, The Physics and Chemistry of Sol-Gel Processing, , Academic Press, San Diego
},
	month = {2005///},
	pages = {823 - 826},
	abstract = {Chitosan-silicate hybrid membranes were prepared using γ- glycidoxypropyltrimethoxysilane (GPSM) through a sol-gel process. The amino groups of chitosan chains were reacted with the epoxy groups of GPSM and GPSM have a function as the agent to cross-link the chitosan chains. The cross-linking degree of the hybrid membranes was determined by ninhydrin assay. Fourier-transform infrared (FT-IR) spectroscopy and                        29Si cross-polarization (CP) magic-angle spinning (MAS)-NMR spectroscopy were used to assess the structure of the hybrid membranes. The biodegradability of the hybrid membranes in phosphate-buffered saline solution or lysozyme solution was investigated as a function of the GPSM concentration.
},
	keywords = {biodegradability, Biological membranes, chitosan, Chitosan chains, Chitosan inorganic hybrid membranes, Chitosan-lnorganlc hybrid, Crosslinking, Fourier transform infrared spectroscopy, Nuclear magnetic resonance spectroscopy, R- glycidoxypropyltrimethoxysilane GPSM, Reaction kinetics, Silicates, Sol-gel process},
	isbn = {10139826 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-34249091650\&partnerID=40\&md5=51e1b69bd7dc1b4c23b022e4ec338e8a},
	author = {Tsuru, K. and Shirosaki, Y. and Hayakawa, S. and Osaka, A. and Lopes, M.A. and Santos, J.D. and Fernandas, M.H.}
}
@article {2459,
	title = {In vitro cytocompatibility of MG63 cells on chitosan-organosiloxane hybrid membranes},
	journal = {BiomaterialsBiomaterials},
	volume = {26},
	year = {2005},
	note = {Cited By (since 1996): 55Export Date: 21 November 2012Source: ScopusCODEN: BIMADdoi: 10.1016/j.biomaterials.2004.02.056PubMed ID: 15276356Language of Original Document: EnglishCorrespondence Address: Hayakawa, S.; Biomaterial Laboratory, Faculty of Engineering, Okayama Univ., 3-1-1 T., Okayama-shi, Japan; email: satoshi@cc.okayama-u.ac.jpChemicals/CAS: calcium chloride, 10043-52-4; Alkaline Phosphatase, EC 3.1.3.1; Biocompatible Materials; Calcium, 7440-70-2; Chitosan, 9012-76-4; Cross-Linking Reagents; gamma-glycidoxypropyltrimethoxysilane, 2530-83-8; Membranes, Artificial; Neoplasm Proteins; SilanesManufacturers: Chisso, Japan; Kasei, JapanReferences: Park, J.B., Lakes, R.S., (1992) Biomaterials An Introduction, pp. 223-234. , New York: Plenum Press;Wise, D.L., (2000) Biomaterials and Bioengineering Handbook, pp. 556-559. , New York: Marcel Dekker; 
Lee, Y.K., Mooney, J.D., Hydrogels for tissue engineering (2001) Chem Rev, 101, pp. 1869-1879; 
Park, S.N., Park, J.C., Kim, H.O., Song, M.J., Suh, H., Characterization of porous collagen/hyaluronic acid scaffold modified by 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide cross-linking (2002) Biomaterials, 23, pp. 1205-1212; 
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; 
Widmer, M.S., Gupta, P.K., Lu, L., Meszlenyi, R.K., Evans, G.R.D., Brandt, K., Savel, T., Mikos, A.G., Manufacture of porous biodegradable polymer conduits by an extrusion process for guided tissue regeneration (1998) Biomaterials, 19, pp. 1945-1955; 
Wang, Y.C., Lin, M.C., Wang, D.M., Hsieh, H.J., Fabrication of a novel porous PGA-chitosan hybrid matrix for tissue engineering (2003) Biomaterials, 24, pp. 1047-1057; 
Domard, A., Rinaudo, M., Preparation and characterization of fully deacetylated chitosan (1983) Int J Biol Macromol, 5, pp. 49-52; 
Chandy, T., Sharma, P.C., Chitosan - As a biomaterial (1990) Biomater Artif Cells Artif Organo, 18, pp. 1-24; 
Ueno, H., Yamada, H., Tanaka, I., Kaba, N., Matsuura, M., Okumura, M., Kadosawa, T., Fujinaga, T., Accelerating effects of chitosan for healing at early phase of experimental open wound in dogs (1999) Biomaterials, 20, pp. 1407-1414; 
Varma, H.K., Yokogawa, Y., Espinosa, F.F., Kawamoto, Y., Nishizawa, K., Nagata, F., Kameyama, T., Porous calcium phosphate coating over phosphorylated chitosan film by a biomimetic method (1999) Biomaterials, 20, pp. 879-884; 
Xiao, C., Gao, S., Wang, H., Zhang, L., Blend films from chitosan and konjac glucomannan solutions (2000) J Appl Polym Sci, 76, pp. 509-515; 
Chung, T.W., Lu, Y.F., Wang, S.S., Lin, Y.S., Chu, S.H., Growth of human endothelial cells on photochemically grafted Gly-Arg-Gly-Asp (GRGD) chitosans (2002) Biomaterials, 23, pp. 4803-4809; 
Muzzareli, R.A.A., Mattioli-Belmonte, M., Tietz, C., Biagini, R., Ferioli, G., Brunelli, M.A., Fini, M., Biagini, G., Stimulatory effect on bone formation exerted by a modified chitosan (1994) Biomaterials, 15, pp. 1075-1081; 
Park, Y.J., Lee, M.Y., Lee, J.Y., Seol, Y.J., Chung, C.P., Lee, S.J., Controlled release of platelet-derived growth factor-BB from chondroitin sulfate-chitosan sponge for guided bone regeneration (2000) J Controlled Rel, 67, pp. 385-394; 
Suzuki, T., Mizushima, Y., Umeda, T., Ohashi, R., Further biocompatibility testing of silica-chitosan complex membrane in the production of tissue plasminogen activator by epithelial and fibroblast cells (1999) J Biosci Bioeng, 88, pp. 194-199; 
Yamaguchi, I., Itoh, S., Suzuki, M., Sakane, M., Osaka, A., Tanaka, J., The chitosan prepared from crab tendon I: The characterization and the mechanical properties (2003) Biomaterials, 24, pp. 2031-2036; 
Lee, J.Y., Nam, S.H., Im, S.Y., Park, Y.J., Lee, Y.M., Seol, Y.J., Chung, C.P., Lee, S.J., Enhanced bone formation by controlled growth factor delivery from chitosan-based biomaterials (2002) J Controlled Rel, 78, pp. 187-197; 
Kawamura, Y., Mitsuhashi, M., Tanibe, H., Yoshida, H., Adsorption of metal ions on polyaminated highly porous chelating resin (1993) Ing Eng Chem Res, 32, pp. 386-391; 
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Ren, L., Tsuru, K., Hayakawa, S., Osaka, A., Sol-gel preparation and in vitro deposition of apatite on porous gelatin-siloxane hybrids (2001) J Non-Cryst Solid, 285, pp. 116-122; 
Ren, L., Tsuru, K., Hayakawa, S., Osaka, A., Novel approach to fabricate porous gelatin-siloxane hybrids for bone tissue engineering (2002) Biomaterials, 23, pp. 4765-4773; 
Berridge, V., Tan, A.S., Characterization of the cellular reduction of 3-(4,5-dimethylthiazol-2- yl)-2,5-diphenyltetrazolium bromide (MTT) subcellular localization, substrate dependence, and involvement of mitochondrial electron transport in MTT reduction (1993) Arch Biochem Biophys, 303, pp. 474-482; 
Ren, L., Tsuru, K., Hayakawa, S., Osaka, A., Incorporation of Ca 2+ ions in gelatin-siloxane hybrids through a sol-gel process (2001) J Ceramic Soc Japan, 109, pp. 403-408; 
Yamaguchi, I., Tokuchi, K., Fukuzaki, H., Koyama, Y., Takakuda, K., Monma, H., Tanaka, J., Preparation and microstructure analysis of chitosan/hydroxyapatite nanocomposites (2001) J Biomed Mater Res, 55, pp. 20-27; 
Hench, L.L., Ethridge, E.C., (1982) Biomaterias An Interfacial Approach, p. 10. , New York: Academic Press; 
Clover, J., Gowen, M., Are MG63 and HOS TE 85 human osteosarcoma cell lines representative models of the osteoblastic phenotype? (1994) Bone, 15, pp. 585-591; 
Martin, T.J., Findlay, D.M., Heath, J.K., Ng, K.W., Osteoblasts: Differentiation and function (1993) Handbook of Experimental Pharmacology, pp. 149-183. , J.R. Mundy, \& T.J. Martin. Berlin: Springer; 
Aubin, J.E., Turksen, K., Heersch, J.N.M., Osteoblastic cell lineage (1993) Cellular and Molecular Biology of Bone, pp. 1-45. , M. Noda. Tokyo: Academic Press Inc; 
Anderson, S.I., Downes, S., Perry, C.C., Caballero, A.M., Evaluation of the osteoblast response to a silica gel in vitro (1998) J Mater Sci: Mater Med, 9, pp. 731-735; 
Rhee, S.H., Hwang, M., Si, H.J., Choi, J.Y., Biological activities of osteoblasts on poly(methyl methacrylate)/silica hybrid containing calcium salt (2003) Biomaterials, 24, pp. 901-906; 
Kalonji, E.E., Denis, I., Lieberherr, M., Pointillart, A., Effects of extracellular calcium on the proliferation and differentiation of porcine osteoblasts in vitro (1998) Cell Tissue Res, 292, pp. 163-171; 
Ferraz, M.P., Knowles, J.C., Olsen, I., Monteiro, F.J., Santos, J.D., Flow cytometry analysis of the effects of pre-immersion on the biocompatibility of glass-reinforced hydroxyapatite plasma-sprayed coatings (2000) Biomaterials, 21, pp. 813-820; 
Bilezikian, J.P., Raisz, L.G., Rodan, G.A., (2002) Principles of Bone Biology, p. 1325. , New York: Academic Press
},
	month = {2005///},
	pages = {485 - 493},
	abstract = {Chitosan-silicate hybrids were synthesized using γ- glycidoxypropyltrimethoxysilane (GPSM) as the agent for cross-linking the chitosan chains. CaCl                        2 was introduced in the hybrids in expectation that it would improve cell adhesion and differentiation of the hybrid surfaces. Fourier-transform infrared (FT-IR) spectroscopy and 
                        29Si CP-MAS NMR spectroscopy were used to analyze the structures of the hybrids. Cytocompatibility of the hybrids was investigated in terms of proliferation of an osteoblastic cell line, MG63. The adhesion and proliferation of the osteoblastic cells cultured on the surface of a chitosan-GPSM hybrid without calcium were similar to those on a control culture plate, and were better than those on a chitosan membrane. The ALP activity of the cells cultured on this hybrid was higher than that on the chitosan membrane. Contrary to expectations, the incorporation of calcium ions into the hybrids did not improve cell attachment and proliferation on their surfaces. {\textcopyright} 2004 Elsevier Ltd. All rights reserved.
},
	keywords = {alkaline phosphatase, article, artificial membrane, Biocompatibility, Biocompatible Materials, Bone Neoplasms, Calcium, calcium chloride, cell adhesion, Cell attachments, Cell culture, cell differentiation, Cell Division, Cell Line, Tumor, chitosan, chitosan derivative, controlled study, cross linking, Cross-Linking Reagents, Crosslinking, Cytocompatibility, Fourier transform infrared spectroscopy, human, human cell, Humans, hybrid, infrared spectroscopy, Magnetic Resonance Spectroscopy, materials testing, Membranes, Artificial, MG63 osteoblastic cells, Microscopy, Electron, Scanning, Neoplasm Proteins, Nuclear magnetic resonance spectroscopy, Organic-inorganic hybrid, osteoblast, Osteoblasts, Osteosarcoma, priority journal, Silanes, Silicates, siloxane, Spectroscopy, Fourier Transform Infrared, structure analysis, surface property, Synthesis (chemical), wettability, γ-Glycidoxypropyltrimethoxysilane (GPSM)},
	isbn = {01429612 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-3242791810\&partnerID=40\&md5=a22c21444fa3d2843a8783bb42f6ebc1},
	author = {Shirosaki, Y. and Tsuru, K. and Hayakawa, S. and Osaka, A. and Lopes, M.A. and Santos, J.D. and Fernandes, M.H.}
}
@article {2448,
	title = {In vitro studies of calcium phosphate glass ceramics with different solubility with the use of human bone marrow cells},
	journal = {Journal of Biomedical Materials Research - Part AJ. Biomed. Mater. Res. Part A},
	volume = {74},
	year = {2005},
	note = {Cited By (since 1996): 5Export Date: 21 November 2012Source: ScopusCODEN: JBMRCdoi: 10.1002/jbm.a.30357PubMed ID: 15988737Language of Original Document: EnglishCorrespondence Address: Fernandes, M.H.; FMDUP-Faculdade de Medicina Dent{\'a}ria da Universidade do Porto, Rua Dr. Manuel Pereira da Silva, 4200 Porto, Portugal; email: mhrf@portugalmail.ptChemicals/CAS: alkaline phosphatase, 9001-78-9; calcium phosphate, 10103-46-5, 13767-12-9, 14358-97-5, 7758-87-4; polystyrene, 9003-53-6; titanium dioxide, 1317-70-0, 1317-80-2, 13463-67-7, 51745-87-0; Alkaline Phosphatase, EC 3.1.3.1; calcium phosphate, 10103-46-5; Calcium Phosphates; Ceramics; Glass ceramics, 85422-94-2References: Yaszemski, M.J., Payne, R.G., Hayes, W.C., Langer, R., Mikos, A.C., Evolution of bone transplantation: Molecular, cellular and tissue strategies to engineer human bone (1996) Biomaterials, 17, pp. 175-185;Rueger, J.M., Bone replacement materials-state of the art and the way ahead (1998) Orthopade, 27, pp. 72-79; 
Tadic, D., Epple, M., A thorough physicochemical characterization of 14 calcium phosphate-based bone substitution materials in comparison to natural bone (2004) Biomaterials, 25, pp. 987-994; 
Greenwald, A.C., Bolden, S.D., Goldberg, V.M., Khan, Y., Laurencin, C.T., Rosier, R.N., Bone-graft substitutes: Facts, fictions and applications (2001) J Bone Joint Surg, 83 A, pp. 98-103; 
Damien, C.J., Parson, J.R., Bone graft and bone graft substitutes: A review of current technology and applications (1997) J Appl Biomater, 2, pp. 187-208; 
Lettuec, J.C., Cl{\'e}ment, D., Lesprit, E., Faber, J., The use of calcium phosphates, their biological properties (2000) Eur J Orthop Surg Traumatol, 10, pp. 223-229; 
Dorozhkin, S.V., Epple, M., Biological and medical significance of calcium phosphates (2002) Angew Chem Int Ed Engl, 41, pp. 3130-3146; 
Dias, A.G., Lopes, M.A., Gibson, I.R., Santos, J.D., In vitro degradation studies of calcium phosphate glass ceramics prepared by controlled crystallization (2003) J Non-Cryst Solids, 330, pp. 81-89; 
Fini, M., Giardino, R., In vitro and in vivo tests for the biological evaluation of candidate orthopedic materials: Benefits and limits (2003) J Appl Biomater Biomech, 1, pp. 155-163; 
Hunt, J.A., McLaughlin, P.J., Flanagan, B.F., Review-Techniques to investigate cellular and molecular interaction in the host response to implanted biomaterials (1997) Biomaterials, 18, pp. 1449-1459; 
Dias, A.G., Tsuru, K., Hayakawa, S., Lopes, M.A., Santos, J.D., Osaka, A., Crystallization studies of biodegradable CaO-P 2O 5 glass with MgO and TiO 2 for bone regeneration applications (2004) Glass Technol, 45; 
Anselme, K., Osteoblast adhesion on biomaterials (2000) Biomaterials, 21, pp. 667-681; 
Kumari, T.V., Vasudev, U., Kumar, A., Menon, B., Cell surface interactions in the study of biocompatibility (2002) Trends Biomater Artif Organs, 15, pp. 37-41; 
Sun, J.S., Tsuang, Y.H., Liao, C.J., Liu, H.C., Hang, Y.S., Lin, F.H., The effects of calcium phosphate particles on the growth of osteoblasts (1997) J Biomed Mater Res, 37, pp. 324-334; 
Sun, J.S., Whs, C., Chen, L.T., Huang, Y.C., Juang, L.W., Lin, F.H., The influence on gene-expression profiling of osteoblasts behavior following treatment with the ionic products of sintered β-dicalcium pyrophosphate dissolution (2004) Biomaterials, 25, pp. 607-616; 
Coelho, M.J., Fernandes, M.H., Human bone cell cultures in biocompatibility testing. Part II: Effect of ascorbic acid b-glycerophosphate and dexamethasone on osteoblastic differentiation (2000) Biomaterials, 21, pp. 1095-1102; 
Morais, S., Dias, N., Sousa, J.P., Fernandes, M.H., Carvalho, G.S., In vitro osteoblastic differentiation of human bone marrow cells in the presence of metal ions (1999) J Biomed Mater Res, 44, pp. 176-190; 
Coelho, M.J., Cabral, A.T., Fernandes, M.H., Human bone cell cultures in biocompatibility testing. Part I: Osteoblastic differentiation of serially passaged human bone marrow cells cultured in alpha-MEM and in DMEM (2000) Biomaterials, pp. 211087-211094; 
Dias, A.G., Lopes, A.G., Santos, J.D., Fernandes, N.H., The influence of pre-incubation treatment in the in vitro biological performance of degradable CaO-P 2O 5 glass ceramics (2005) Key Eng Mater, 284-286, pp. 565-568; 
Bitar, M., Salih, V., Mudera, V., Knowles, J.C., Lewis, M.P., Soluble phosphate glasses: In vitro studies using human cells of hard and soft tissue origin (2004) Biomaterials, 25, pp. 2283-2292; 
Suzuki, T., Yamamoto, T., Toriyana, M., Nishizawa, K., Yokogawa, Y., Mucalo, M.R., Kawamoto, Y., Kameyama, T., Surface instability of calcium phosphate ceramics in tissue growth of anchorage-dependent animal cells (1997) J Biomed Mater Res, 34, pp. 507-517; 
Ducheyne, P., Qiu, Q., Bioactive ceramics: The effect of surface reactivity on bone formation and bone cell function (1999) Biomaterials, 20, pp. 2287-2303; 
Bellows, C.G., Aubin, J.E., Heersche, J.N.M., Initiation and progression of mineralization of bone nodules formed in vitro: The role of alkaline phosphatase and organic phosphate (1991) Bone Mineral, 14, pp. 27-40; 
Stein, G.S., Lian, J.B., Stein, J.L., Van Wijnen, A.J., Frenkel, B., Montecino, M., Mechanism regulating osteoblast proliferation and differentiation (1996) Principles of Bone Biology, pp. 69-83. , Bilezikian JP, Raisz LG, Rodan GA, editors. New York: Academic Press; 
Chun, S., Na, S.W., Lee, J.H., Chung, J.P., Ryu, I.C., Kim, S.Y., Biodegradation study of potassium calcium metaphosphate in the SBF and Tris-buffer solution (2002) Key Eng Mater, 218-220, pp. 149-152; 
Ploska, U., Berger, G., Solubility of compositions in the system CaTi xZr 4 - X(PO 4) 6 with x = 0-4 (1997) Biomaterials, 18, pp. 1671-1675; 
Dias, A.G., Skakle, J.M.S., Gibson, I.R., Lopes, M.A., Santos, J.D., In situ thermal and structural characterization of bioactive calcium phosphate glass ceramics containing TiO 2 and MgO oxides: HT-XRD studies (2005) J Non-Cryst Solids, , Forthcoming; 
Chun, S., Jeong, J.H., Kim, K.H., Kim, S., Biodegradation study of amorphous and crystalline calcium metaphosphate in SBF and Tris-buffer solution (2001) Key Eng Mater, 192-195, pp. 131-134; 
Elghannam, A., Ducheyne, P., Shapiro, I.M., Bioactive material template for in vitro synthesis of bone (1995) J Biomed Mater Res, 29, pp. 359-370; 
Kitsugi, T.T., Yamamuro, T., Nakamura, T., Oka, M., Transmission electron microscopy observations at the interface of bone and four types of calcium phosphate ceramics with different calcium/phosphorous molar ratios (1995) Biomaterials, 16, pp. 1101-1107; 
Gross, U., Muller-Mai, C., Voigt, C., Mesgarian, M., Berger, G., Ploska, U., Tissue response in the femur of rabbits after implantation of a new calcium titanium phosphate composition (2001) Key Eng Mater, 192-195, pp. 383-386; 
Hill, P.A., Orth, M., Bone remodeling - Review (1998) Br J Orthod, 25, pp. 101-107
},
	month = {2005///},
	pages = {347 - 355},
	abstract = {Two glass ceramics in the CaO-P                        2O
                        5-MgO system with the incorporation of K
                        2O or TiO
                        2 oxides were prepared with the goal of using them as potential bone graft substitutes. The incorporation of TiO
                        2 and K
                        2O led to the preparation of specific crystalline phases in the structure of the glass ceramics, which show different degrees of biodegradation. In fact, the 45CaO-45P
                        2O 
                        5-5MgO-5K
                        2O has been previously demonstrated to be much more soluble in aqueous solutions than the 45CaO-37P
                        2O 
                        5-5MgO-13TiO
                        2 glass ceramic. The in vitro biological activity of the two calcium phosphate glass ceramics was studied with the use of human bone marrow osteoblast cell cultures maintained for 28 days, and seeded materials were assessed for cell proliferation and function. The Ti-containing glass ceramic showed a stable surface throughout the culture time, on macroscopic and SEM observation. Osteoblast cells proliferated gradually, especially during the third week, with a high alkaline phosphatase activity and formation of a mineralized matrix. On SEM observation, attached cells appeared with a spreadpolygonal morphology typical of the osteoblast cells, with extensive cell-to-cell contact. Cell behavior on the seeded material was similar to that found on cultures performed on tissue-culture-grade polystyrene; except for the presence of lower cell numbers during the first 2 weeks. By contrast, the K-containing glass ceramic showed a highly instable surface with dissolution/precipitation processes occurring throughout the culture time. Few cells adhered to the material surface, and subsequent proliferation was also hindered, especially from the first week onwards. Cell numbers were significantly lower than those observed in the Ti-containing glass ceramic during most of the incubation time. Results suggest that the different in vitro biological behavior of these two glass ceramics is mainly due to the significant differences in the surface degradation rate, which is directly correlated to the chemical composition of the mother glass. {\textcopyright} 2005 Wiley Periodicals, Inc.
},
	keywords = {alkaline phosphatase, aqueous solution, article, Biodegradation, Bone, Bone graft, bone marrow cell, Bone Marrow Cells, bone mineralization, bone prosthesis, Calcium Compounds, calcium phosphate, Calcium phosphate glass ceramic, Calcium phosphate glass ceramics, Calcium phosphates, cell contact, Cell culture, cell proliferation, Cells, ceramics, chemical composition, controlled study, crystal structure, Dissolution, enzyme activity, extracellular matrix, glass, Glass ceramics, human, Human bone marrow cells, human cell, Humans, in vitro study, In vitro testing, Magnesia, magnesium derivative, Microscopy, Electron, Scanning, osteoblast, Osteoblasts, polystyrene, Precipitation (chemical), Scanning electron microscopy, Solubility, Spectrum Analysis, Surface treatment, Titanium dioxide},
	isbn = {00219304 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-23844483883\&partnerID=40\&md5=722984f31e5a2ccf0f02a5bf5f182aaf},
	author = {Dias, A.G. and Lopes, M.A. and Trigo Cabral, A.T. and Santos, J.D. and Fernandes, M.H.}
}
@book {2436,
	title = {The influence of pre-incubation treatment in the in vitro biological performance of degradable CaO-P                    2O
                    5 glass ceramics
},
	series = {Key Engineering MaterialsKey Eng Mat},
	volume = {284-286},
	year = {2005},
	note = {Cited By (since 1996): 1Export Date: 21 November 2012Source: ScopusCODEN: KEMAELanguage of Original Document: EnglishCorrespondence Address: Dias, A.G.; FEUP-Faculdade de Engenharia, Universidade do Porto, DEMM, Rua Dr. Roberta Frias, 4200 Porto, Portugal; email: pde99423@fe.up.ptReferences: Damien, C.J., Bone graft and bone graft substitutes a review of current technology and applications (1997) Journal of Applied Biomaterial, 2, pp. 187-208;Dias, A.G., In vitro degradation studies of calcium phosphate glass ceramics prepared by controlled crystallization (2003) Journal of Non-Crystalline Solids, 330 (1-3), pp. 81-89; 
Dias, A.G., Crystallization studies of biodegradable CaO-P 2O 5 glass with MgO and TiO 2 for bone regeneration applications (2004) Glass Technology, 45 (2), pp. 78-79; 
Anselme, K., Osteoblast adhesion on biomaterials (2000) Biomaterials, 21, pp. 667-681
},
	month = {2005///},
	pages = {565 - 568},
	abstract = {Based upon the CaO-P                        2O
                        5 glass system, two glass ceramics were prepared in the meta-, pyro- and orthophosphate regions. The present work describes results concerning the biological activity of MT13B (45CaO-37P
                        2O
                        5-5MgO-13TiO
                        2, in mol \%) and MK5B (45CaO-45P
                        2O
                        5-5MgO-5K
                        2O, in mol \%) using MG63 osteoblast-like cells cultured for 6 days. The influence of a 24h pretreatment with culture medium before cell culture was also evaluated (MT13Bi; MK5Bi). Both "as-received" and pre-treated material samples supported cell growth, which increased with the culture time. Pre-treatment resulted in an increase of adhered cells on both materials (day 1). Throughout the culture time (days 3 and 6), MT13Bi presented higher cell numbers than that of MT13B, but no differences were found between MK5Bi and MK5B. In addition, cell growth was significantly lower in the K-containing glass ceramic in both experimental situations comparing with Ti-containing glass ceramic. SEM and confocal microscopy observation showed that cell adhesion and spreading were hampered on MK5B samples. Evident macroscopic and microscopic surface instability was observed on this material with simultaneous dissolution/precipitation processes. By contrast, MT13B presented a relatively stable surface throughout the culture time. Results suggest that the pre-incubation with culture medium improves the adhesion of the osteoblast cells to both glass ceramics and that the high degradation rate of MK5B hinders the in vitro biological performance of this material.
},
	keywords = {Bioactivity, biodegradability, Biodegradable glass ceramics, Calcium Compounds, Cell culture, cell growth, Glass ceramics, MG63 osteoblast-like cells, Orthophosphate, Osteoblasts, Pretreatment},
	isbn = {10139826 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-33645201818\&partnerID=40\&md5=561c15b59394edb3a198cfad0225ac84},
	author = {Dias, A.G. and Lopes, M.A. and Santos, J.D. and Fernandes, M.H.}
}
@book {2430,
	title = {A method for simultaneously precipitating and dispersing nano-sized calcium phosphate suspensions},
	series = {Key Engineering MaterialsKey Eng Mat},
	volume = {284-286},
	year = {2005},
	note = {Cited By (since 1996): 1Export Date: 21 November 2012Source: ScopusCODEN: KEMAELanguage of Original Document: EnglishCorrespondence Address: Lemos, A.F.; Ceramic and Glass Engineering Department, Campus de Santiago, University of Aveiro, 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; 
Liu, H.S., Chin, T.S., Lai, L.S., Chiu, S.Y., Chung, K.H., Chang, C.S., Lui, M.T., (1997) Ceramics International, 23, p. 19; 
Zhang, S., Gonsalves, K.E., (1997) J. Mater. Sci.: Mater. Med, 8, p. 25; 
Takeo, H., Yasuhiko, I., Hiroshi, I., (1987) J. Ceram. Soc. Japan, 95, p. 825; 
Yoshio, M., Kazuo, M., Sumio, S., (1990) J. Ceram. Soc. Japan, 98, p. 1255; 
Berndt, C.C., Haddad, G.N., Farmer, A.J.D., Gross, K.A., (1990) Mater. Forum, 14 (3), p. 161; 
Koutsopoulos, S., (2002) J. Biomed. Mat. Res, 62, p. 600; 
Pe{\~n}a, J., Vallet-Reg{\'\i}, M., (2003) J. Europ. Ceram. Soc, 23, p. 1687; 
Orlovskii, V.P., Komlev, V.S., Barinov, S.M., (2002) Inorganic Materials, 38 (10), p. 973; 
Murry, M.G.S., wang, J., Pontom, C.B., Marquis, P.M., (1995) J. Mater. Sci, 30, p. 3061
},
	month = {2005///},
	pages = {67 - 70},
	abstract = {Stable and relatively concentrated aqueous suspensions of nano-sized stoichiometric hydroxyapatite could be prepared by a precipitation method in the presence of suitable surface active agent (SAA). The method includes the precipitation, vacuum filtration and washing of the precipitated powders, followed by re-dispersion. It could be concluded that the added amount of the SAA should be enough to cover the primary particles surface, and that washing should be better carried out using a SAA solution. The method developed enables the precipitation of the powders and the preparation of suspensions, while significantly shortening the overall time required for colloidal processing consuming.},
	keywords = {calcium phosphate, Calcium phosphates, Colloidal processing, Colloids, hydroxyapatite, Precipitated powders, precipitation, Precipitation (chemical), rheology, Stoichiometry, Surface active agents, Vacuum filtration, Washing},
	isbn = {10139826 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-34249009928\&partnerID=40\&md5=812ea199ac82188b178e5958b2ed4f05},
	author = {Lemos, A.F. and Rebelo, A.H.S. and Rocha, J.H.G. and Ferreira, J.M.F.}
}
@book {2434,
	title = {Method for tailoring and control the morphology, size and porosity of calcium phosphate granules},
	series = {Key Engineering MaterialsKey Eng Mat},
	volume = {284-286},
	year = {2005},
	note = {Cited By (since 1996): 1Export Date: 21 November 2012Source: ScopusCODEN: KEMAELanguage of Original Document: EnglishCorrespondence Address: Lemos, A.F.; Ceramic and Glass Engineering Department, Campus de Santiago, University of Aveiro, 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; 
Elliot, J.C., (1994) Structure and chemistry of the apatites and other calcium orthophosphates. Studies in Organic Chemistry, 18. , Elsevier Science, Netherlands; 
Paul, W., Sharma, C.P., (1999) J. Mater. Sci.: Mater. Med, 10, p. 383; 
Ohgushi, H., Okumura, M., Yoshikawa, T., Inoue, K., Senpuku, N., Tamai, S., Shors, E.C., (1992) J. Biomed. Mater. Res, 26, p. 885; 
Liu, D., (1996) Biomaterials, 17, p. 1955; 
Komlev, V.S., Barinov, S.M., Koplik, E.V., (2002) Biomaterials, 23, p. 3449; 
Lamprecht, A., Shafer, U., Lehr, C., (2000) AAPS PharmSciTech, 3 (1), p. 17. , article; 
Lemos, A.F., Santos, J.D., Ferreira, J.M.F., (2004) Materials Science Forum, 455-456, p. 361
},
	month = {2005///},
	pages = {309 - 312},
	abstract = {Hydroxyapatite (HA) is the calcium-phosphate material with composition closest to that of human bone, what makes it suitable for osseous implant purposes, namely as fillers, spacers and bone grafts substitutes. This study is aimed at the development of a method to produce porous spherical hydroxyapatite granules. The process involves the spraying of a suspension with different amounts of a setting agent to a setting media. The tailor and the control of the morphology, size and porosity of the granules were attained by adjusting the nozzle diameter, the pressure of air flow and the distance between the nozzle and the setting media.},
	keywords = {Air flow, Bioceramics, Bioceramlcs, Bone grafts substitutes, calcium phosphate, Granular materials, Granules, Human bone, hydroxyapatite, Hydroxyapatite granules, Porous materials, Porous structures, Starch},
	isbn = {10139826 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-34248995545\&partnerID=40\&md5=794aa135258ec1886f40ee45b01c56de},
	author = {Lemos, A.F. and Rocha, J.H.G. and Ventura, J.M. and Ferreira, J.M.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; 
McGlohorn, J.B., Grimes, L.W., Webster, S.S., Burg, K.J., Characterization of cellular carriers for use in injectable tissue-engineering composites (2003) J Biomed Mater Res, 66 A (3), pp. 441-449; 
Wu, T.J., Huang, H.H., Lan, C.W., Lin, C.H., Hsu, F.Y., Wang, Y.J., Studies on the microspheres comprised of reconstituted collagen and hydroxyapatite (2004) Biomaterials, 25 (4), pp. 651-658; 
Barrias, C.C., Ribeiro, C.C., Barbosa, M.A., Adhesion and proliferation of human osteoblastic cells seeded on injectable hydroxyapatite microspheres (2004) Key Eng Mater, 254-256, pp. 877-880; 
Van Wezel, A.L., Microcarrier technology: Present status and prospects (1983) Dev Biol Stand, 55, pp. 3-9; 
Malda, J., Kreijveld, E., Temenoff, J.S., Van Blitterswijk, C.A., Riesle, J., Expansion of human nasal chondrocytes on macroporous microcarriers enhances redifferendation (2003) Biomaterials, 24 (28), pp. 5153-5161; 
Frondoza, C., Sohrabi, A., Hungerford, D., Human chondrocytes proliferate and produce matrix components in microcarrier suspension culture (1996) Biomaterials, 17 (9), pp. 879-888; 
Ribeiro, C.C., Barrias, C.C., Barbosa, M.A., A novel route for the preparation of injectable ceramic porous microspheres for bone tissue engineering (2003) Ceramics, Cells and Tissues Annual Conferences: Bioceramic Surfaces Behavior in Vitro and in Vivo, pp. 228-232. , Ravaglioli A, Krajewski A, editors. Faenza: ISTEC-CNR editions; 
Ribeiro, C.C., Barrias, C.C., Barbosa, M.A., (2004) Preparation and Characterisation of Calcium-phosphate Microspheres for Biomedical Applications, , Submitted for publication; 
Maniatopoulos, C., Sodek, J., Melcher, A.H., Bone formation in vitro by stromal cells obtained from bone marrow of young adult rats (1988) Cell Tissue Res, 254 (2), pp. 317-330; 
Labarca, C., Paigen, K., Simple, rapid, and sensitive DNA assay procedure (1980) Anal Biochem, 102 (2), pp. 344-352; 
Mankani, M.H., Kuznetsov, S.A., Fowler, B., Kingman, A., Robey, P.G., In vivo bone formation by human bone marrow stromal cells: Effect of carrier particle size and shape (2001) Biotechnol Bioeng, 72 (1), pp. 96-107; 
Higashi, T., Okamoto, H., Influence of particle size of calcium phosphate ceramics as a capping agent on the formation of a hard tissue barrier in amputated dental pulp (1996) J Endod, 22 (6), pp. 281-283; 
Misiek, D.J., Kent, J.N., Carr, R.F., Soft tissue responses to hydroxylapatite particles of different shapes (1984) J Oral Maxillofac Surg, 42 (3), pp. 150-160; 
Maniatopoulos, C., Bone formation by young adult bone marrow stromal cells in vitro (1987) J Dent Res, 66, p. 104; 
Pittenger, M.F., Mackay, A.M., Beck, S.C., Jaiswal, R.K., Douglas, R., Mosca, J.D., Moorman, M.A., Marshak, D.R., Multilineage potential of adult human mesenchymal stem cells (1999) Science, 284 (5411), pp. 143-147; 
Ter Brugge, P.J., Jansen, J.A., In vitro osteogenic differentiation of rat bone marrow cells subcultured with and without dexamethasone (2002) Tissue Eng, 8 (2), pp. 321-331; 
Anselme, K., Osteoblast adhesion on biomaterials (2000) Biomaterials, 21 (7), pp. 667-681; 
Anselme, K., Linez, P., Bigerelle, M., Le Maguer, D., Le Maguer, A., Hardouin, P., Hildebrand, H.F., Leroy, J.M., The relative influence of the topography and chemistry of TiA16V4 surfaces on osteoblastic cell behaviour (2000) Biomaterials, 21 (15), pp. 1567-1577; 
Deligianni, D.D., Katsala, N.D., Koutsoukos, P.G., Missirlis, Y.F., Effect of surface roughness of hydroxyapatite on human bone marrow cell adhesion, proliferation, differentiation and detachment strength (2001) Biomaterials, 22 (1), pp. 87-96; 
Boyan, B.D., Lossdorfer, 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; 
Brunette, D.M., The effects of implant surface topography on the behavior of cells (1988) Int J Oral Maxillofac Implants, 3 (4), pp. 231-246; 
Schwartz, Z., Lohmann, C.H., Oefinger, J., Bonewald, L.F., Dean, D.D., Boyan, B.D., Implant surface characteristics modulate differentiation behavior of cells in the osteoblastic lineage (1999) Adv Dent Res, 13, pp. 38-48; 
Shu, R., McMullen, R., Baumann, M.J., McCabe, L.R., Hydroxyapatite accelerates differentiation and suppresses growth of MC3T3-E1 osteoblasts (2003) J Biomed Mater Res, 67 A (4), pp. 1196-1204; 
Nordstrom, E., Ohgushi, H., Yoshikawa, T., Yokobori, A.T., Yokobori, T., Osteogenic differentiation of cultured marrow stromal stem cells on surface of microporous hydroxyapatite based mica composite and macroporous synthetic hydroxyapatite (1999) Biomed Mater Eng, 9 (1), pp. 21-26; 
Oreffo, R.O.C., Driessens, F.C.M., Flanell, J.A., Triffitt, J.T., Growth and differentiation of human bone marrow osteoprogenitors on novel calcium phosphate cements (1998) Biomaterials, 19 (20), pp. 1845-1854; 
Knabe, C., Berger, G., Gildenhaar, R., Klar, F., Zreiqat, H., The modulation of osteogenesis in vitro by calcium titanium phosphate coatings (2004) Biomaterials, 25, pp. 4911-4919
},
	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 {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; 
Frazier, R.A., Matthijs, G., Davies, M.C., Roberts, C.J., Schacht, E., Tendler, S.J.B., Characterization of protein-resistant dextran monolayers (2000) Biomaterials, 21, pp. 957-966; 
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; 
Cad{\'e}e, J.A., Luyn, M.J.A., Brouwer, L.A., Plantinga, J.A., Van Wachem, P.B., Groot, C.J., Otter, W., Hennink, W.E., In vivo biocompatibility of dextran-based hydrogels (2000) J Biomed Mater Res, 50, pp. 397-404; 
Anderson, J.M., In vivo biocompatibility of implantable delivery systems and biomaterials (1994) Eur J Pharm Biopharm, 40 (1), pp. 1-8; 
Anderson, J.M., Inflammation, wound healing, and the foreign body reaction response (1996) Biomaterials Science, pp. 165-173. , Ratner BD, Hoffman AS, Schoen FJ, Lemons JE, editors. New York: Academic Press; 
(1992) ISO 10993-5: Biological Evaluation of Medical Devices. Test for Cytotoxicity: In Vitro Methods, , Geneva, Switzerland: International Organization for Standardization; 
Pizzoferato, A., Ciapetti, G., Stea, S., Cenni, E., Arciola, C.R., Granchi, D., Savarino, L., Cell culture methods for testing biocompatibility (1994) Clin Mater, 15, pp. 173-190; 
Bancroft, J.D., Stevens, A., (1996) Theory and Practice of Histological Techniques, pp. 99-211. , Edinburg: Churchill Livingstone; 
Mosmann, T., Rapid colorimetric assay for cellular growth and survival: Application to proliferation and cytotoxicity assays (1983) J Immunol Methods, 65, pp. 55-63; 
Moreau, M.F., Chappard, D., Lesourd, M., Month{\'e}ard, J.P., Basl{\'e}, M.F., Free radicals and side products released during methylmethacrylate are cytotoxic for osteoblastic cells (1998) J Biomed Mater Res, 40, pp. 124-131; 
Black, J., The inflammatory response (1999) Biological Performance of Materials, p. 131. , Black J, editor. New York: Marcel Dekker; 
Murch, A.R., Grounds, M.D., Marshall, C.A., Papadimitriou, J.M., Direct evidence that inflammatory multinucleate giant cells form by fusion (1982) J Pathol, 137, pp. 177-180; 
Kuijpers, A.J., Wachem, P.B., Luyn, M.J.A., Plantinga, J.A., Engbers, G.H.M., Krijgsveld, J., Zaat, S.A.J., Feijen, J., In vivo compatibility and degradation of crosslinked gelatin gels incorporated in knitted Dacron (2000) J Biomed Mater Res, 51, pp. 136-145; 
Kuijpers, A.J., Van Wachem, P.B., Luyn, M.J.A., Brouwer, L.A., Engbers, G.H.M., Krijgsveld, J., Zaat, S.A.J., Feijen, J., In vitro and in vivo evaluation of gelatin-chondroitin sulphate hydrogels for controlled release of antibacterial proteins (2000) Biomaterials, 21, pp. 1763-1772; 
Hooper, K.A., Macon, N.D., Kohn, J., Comparative histological evaluation of new tyrosine-derived polymers and poly(L-lactic acid) as a function of polymer degradation (1998) J Biomed Mater Res, 41, pp. 443-454; 
Bos, R.R.M., Rozema, F.R., Boering, G., Nijenhuis, A.J., Pennings, A.J., Verwey, A.B., Nieuwenhuis, P., Jansen, H.W.B., Degradation of and tissue reaction to biodegradable poly(L-lactide) for use as internal fixation of fractures: A study in rats (1991) Biomaterials, 12, pp. 32-36; 
Nakamura, T., Veda, H., Tsuda, T., Li, Y.-H., Kiyotani, T., Inoue, M., Matsumoto, K., Shimizu, Y., Long-term implantation test and tumorigenicity of polyvinyl alcohol hydrogel plates (2001) J Biomed Mater Res, 56, pp. 289-296; 
Dziubla, T.D., Torjman, M.C., Joseph, J.I., Murphy-Tatum, M., Lowman, A.M., Evaluation of porous networks of poly(2-hydroxyethylmethacrylate) as interfacial drug delivery devices (2001) Biomaterials, 22, pp. 2893-2899; 
Spector, M., Lalor, P.A., In vivo assessment of tissue compatibility (1996) Biomaterials Science, pp. 220-228. , Ratner BD, Hoffman AS, Schoen FJ, Lemons JE, editors. New York: Academic Press
},
	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.}
}
@book {2478,
	title = {Bonelike{\textregistered}/PLGA hybrid materials for bone regeneration: In vivo evaluation},
	series = {Materials Science ForumMater Sci Forum},
	volume = {455-456},
	year = {2004},
	note = {Conference code: 63332Cited By (since 1996): 1Export Date: 21 November 2012Source: ScopusCODEN: MSFOELanguage of Original Document: EnglishCorrespondence Address: Oliveira, J.M.; Inst. de Engenharia Biom{\'e}dica, Lab. de Biomateriais, Rua do Campo Alegre, 823, 4150-180 Porto, Portugal; email: jmolive@fe.up.ptReferences: Praemer, A., Furner, S., Rice, D.P., (1992) Am. Acad. Orthop. Surg., p. 1;Glowacki, J., Mulliken, J.B., (1985) Clin. Plast. Surg., 12, p. 233; 
Buck, B.E., Malinin, T.I., Brown, M.D., (1989) Clin. Orthop., 36, p. 129; 
Sepulveda, P., Bressiani, A.H., Bressiani, J.C., Mesenguer, L., K{\"o}nig Jr., B., (2002) J. Biomed. Mater. Res. Vol., 62, p. 587; 
Glimcher, M.J., (1987) Instr. Course Lect., 36, p. 46; 
Yakamuro, T., Hench, L.L., Wilson, J., (1990) CRC Handbook of Bioactive Ceramics, 2, pp. 245-252; 
Klemm, K.W., (1993) Clin. Orthop. \& Rel. Res., 295, pp. 63-76; 
Agrawal, C.M., Ray, R.B., (2001) J. Biomed. Mater. Res., 55, p. 141; 
Santos, J.D., Campbell, J.K., Winton, G.H., (2000), European Patent N{\textdegree} W00068164Lopes, M.A., Santos, J.D., Monteiro, F.J., Ohtsuki, C., Osaka, A., Kaneko, S., Inoue, H., (2001) J. Biomed. Mater. Res., 54, p. 463
},
	month = {2004///},
	pages = {374 - 377},
	address = {Caparica},
	abstract = {The biocompatibility and osteoconductive potential of Bonelike{\textregistered} and Bonelike{\textregistered}/PLGA hybrid materials were evaluated through subcutaneous and tibiae implantations for a 4 week period. Qualitative histology was performed to evaluate new bone formation and characterise bone-implant interface and results showed that Bonelike{\textregistered}/PLGA hybrid materials promote extensive bone growth. After the 4 week implantation period, Bonelike{\textregistered} resorption was recognized, which may be due to the presence of resorbable β and α-tricalcium phosphate phases.},
	keywords = {Bacteria, Biodegradation, Bone, Bonelike resorption, Bonelike{\textregistered}, Histological studies, histology, Hybrid materials, hydroxyapatite, In vivo, physiology, PLGA, Polymers, Surgery, Tissue},
	isbn = {02555476 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-17044449739\&partnerID=40\&md5=4d9e5103b703ff0f016854e278f75823},
	author = {Oliveira, J.M. and Kawai, T. and Lopes, M.A. and Ohtsuki, C. and Santos, J.D. and Afonso, A.},
	editor = {Martins R. and Fortunato E. and Ferreira I. and Dias C.}
}
@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.}
}
@article {2471,
	title = {A comparative study of CaO-P                    2O
                    5-SiO
                    2 gels prepared by a sol-gel method
},
	journal = {Materials Chemistry and PhysicsMater Chem Phys},
	volume = {88},
	year = {2004},
	note = {Cited By (since 1996): 9Export Date: 21 November 2012Source: ScopusCODEN: MCHPDdoi: 10.1016/j.matchemphys.2004.06.015Language of Original Document: EnglishCorrespondence Address: Hussain, N.S.; DEMM, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal; email: sooraj@fe.up.ptReferences: Hench, L.L., (1991) J. Am. Ceram. Soc., 74, p. 1487;Hench, L.L., Wilson, J., (1993) An Introduction to Bioceramics, , World Scientific, Singapore; 
Ohtsuki, C., Kokubo, T., Yamamuro, T., (1992) J. Non-cryst. Solids, 143, p. 84; 
Kokubo, T., Yoshihara, S., Nishimura, N., Yamamuro, T., Nakamura, T., (1991) J. Am. Ceram. Soc., 74, p. 1739; 
Ota, Y., Iwashita, T., Kasuga, T., Abe, Y., Seki, A., (2001) Key Eng. Mater., 192-195, p. 421; 
Kasuga, T., Ota, Y., Nogami, M., Abe, Y., (1996) Phos. Res. Bull., 6, p. 75; 
Ota, Y., Kasuga, T., Abe, Y., (1997) J. Am. Ceram. Soc., 80 (1), p. 225; 
Zhang, Y., Santos, J.D., (2000) J. Non-cryst. Solids, 227, p. 14; 
Yoldas, B.E., (1975) Ceram. Bull., 54, p. 286; 
Thomas, I.M., (1988) Sol-gel Technology for Thin Films, Fibres, Preforms, Electronics and Specialty Shapes, p. 2. , L.C. Klein (Ed.), Noyes, NJ; 
Brinker, C.J., Scherer, G.W., (1990) Sol-gel Science: The Physics and Chemistry of Sol-gel Processing, , Academic Press, New York; 
Hench, L.L., West, J.K., (1990) Chem. Rev., 90, p. 33; 
Hench, L.L., (1998) Sol-gel Silica: Properties, Processing and Technology Transfer, , Noyes, New Jersey; 
Salinas, A.J., Martin, A.I., Vallet-Reg{\'\i}, M., (2002) J. Biomed. Mater. Res., 61 (4), p. 524; 
Laczka, M., Cholewa, K., Lazca-Osyczka, A., (1997) J. Alloys Comp., 248, p. 42; 
Roman, J., Padilla, S., Vallet-Reg{\'\i}, M., (2003) Chem. Mater., 15 (3), p. 798; 
Li, R., Clark, A.E., Hench, L.L., (1991) J. Appl. Biomater., 2, p. 231; 
R{\'a}mila, A., Vallet-Reg{\'\i}, M., (2001) Biomaterials, 22, p. 2301; 
Balas, F., Arcos, D., P{\'e}rez-Pariente, J., Vallet-Reg{\'\i}, M., (2001) J. Mater. Res., 16 (5), p. 1345; 
Peitl, O., Zanotto, E.D., Hench, L.L., (2001) J. Non-cryst. Solids, 292, p. 115; 
Casu, M., Casula, M.F., Corrias, A., Pachina, G., (2003) J. Non-cryst. Solids, 315, p. 97; 
Motke, S.G., Yawale, S.P., Yawale, S.S., (2002) Bull. Mater. Sci., 25 (1), p. 75; 
M{\'e}ndez-Vivar, J., Mendoza-Bandala, A., (2000) J. Non-cryst. Solids, 261, p. 127; 
Popa, M., Calderon-Moreno, J.M., Popescu, L., Kakihana, M., Torecillas, R., (2002) J. Non-cryst. Solids, 297, p. 290; 
Sooraj Hussain, N., Prabhakara Reddy, Y., Buddhudu, S., (2002) Spectrosc. Lett., 35 (2), p. 275; 
Mackenzie, J.D., (1986) Science of Ceramic Chemical Processing, p. 112. , L.L. Hench, D.R. Ulrich (Eds.), Wiley/Interscience; 
Aoki, H., (1991) Science and Medical Applications of Hydroxyapatite, , Jpn. Assoc. Apatite Sci. (JASS)
},
	month = {2004///},
	pages = {5 - 8},
	abstract = {This paper reports on the results concerning the preparation and systematic analysis of CaO-P                        2O
                        5-SiO
                        2 gels by a sol-gel process. The concentration of SiO
                        2 influence on these gels and found the results are very encouraging. Studies have revealed that the concentration of SiO
                        2 has a marginal influence on the phase formation of these gels. It has appreciable changes from less configured particles at lower values of concentration, with an ultimate growth in a highly crystalline fibrous nature at higher concentrations of SiO
                        2. The authors have examined the changes in the morphology of these gels by a scanning electron microscope with an energy dispersive analyser (SEM/EDS techniques) and also from the profiles of Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD) spectral data and reported the crystalline product containing the fibrous β-Ca(PO
                        3)
                        2 as a major phase in the materials studied. {\textcopyright} 2004 Elsevier B.V. All rights reserved.
},
	keywords = {Bioactivity, Calcium Compounds, Calcium phosphosilicates, Fourier transform infrared spectroscopy, Gels, morphology, Phase composition, Phase formation, Phosphorus Compounds, Scanning electron microscopy, Silica, Sol-gel process, Sol-gels, X ray diffraction analysis},
	isbn = {02540584 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-4644336194\&partnerID=40\&md5=14333a8b36bde426323bc7e90ad3386e},
	author = {Hussain, N.S. and Lopes, M.A. and Santos, J.D.}
}
@article {2483,
	title = {Crystallisation studies of biodegradable CaO-P                    2O
                    5 glass with MgO and TiO
                    2 for bone regeneration applications
},
	journal = {Glass TechnologyGlass Technol},
	volume = {45},
	year = {2004},
	note = {Cited By (since 1996): 5Export Date: 21 November 2012Source: ScopusCODEN: GLSTALanguage of Original Document: EnglishCorrespondence Address: Santos, J.D.; INEB, Inst. de Engenharia Biom{\'e}dica, Laborat{\'o}rio de Biomateriais, Rua do Campo Alegre, 823, 4150-180 Porto, Portugal; email: jdsantos@fe.up.ptReferences: Siligardi, C., D{\textquoteright}Arrigo, M.C., Leonelli, C., Sintering behavior of glass ceramics frits (2000) Am. Ceram. Soc. Bull., pp. 88-92;Clarck, T.J., Reed, J.S., Kinetic processes involved in the sintering and crystallization of glass powders (1986) J. Am. Ceram. Soc., 69 (11), pp. 837-846; 
Karmakar, B., Kundu, P., Jana, S., Dwivedi, R.N., Crystallization kinetics and mechanism of low-expansion lithium aluminosilicate glass-ceramics by dilatometry (2002) J. Am. Ceram. Soc., 85 (10), pp. 2572-2577; 
Zhang, Y., Santos, J.D., Crystallization and microstructure analysis of calcium phosphate-based glass ceramics for biomedical applications (2000) J. Non-cryst. Solids, 272 (1), pp. 14-21; 
Ryu, H.-S., Youn, H.-J., Chang, B.-S., Lee, C.-K., Chung, S.-S., An improvement in sintering property of β-tricalcium phosphate by addition of calcium pyrophosphate (2002) Biomaterials, 23, pp. 909-914; 
Kitsugi, T., Yamamuro, T., Nakamura, T., Ota, M., Transmission electron microscopy observations at the interface of bone and four types of calcium phosphate ceramics with different calcium/phosphorous molar ratios (1995) Biomaterials, 16, pp. 1101-1107
},
	month = {2004///},
	pages = {78 - 79},
	abstract = {CaO-P                        2O
                        5 glass ceramics with small additions of MgO and TiO
                        2 were prepared in the ortho and pyrophosphate regions by powder sintering and crystallisation through heat treatment at different temperatures determined from differential thermal analysis (DTA). The glass ceramics were analysed by x-ray diffraction (XRD) and it was observed that α- and β-Ca
                        2P
                        2O
                        7 were the first phases to precipitate in the parent glass matrix at a temperature of 681{\textdegree}C, followed by CaTi
                        4(PO
                        4)
                        6 and TiP 
                        2O
                        7 at temperatures between 703 and 725{\textdegree}C. The β-Ca
                        2P
                        2O
                        7 and CaTi
                        4(PO 
                        4)
                        6 phases are usually considered as biocompatible and bioactive and, therefore, these glass ceramics seem to show good potential for bone regeneration applications.
},
	keywords = {Biodegradation, Bone Regeneration, Crystallization, Differential thermal analysis, Diffractometers, Glass ceramics, Glass matrix, Glass transition, Laser diffraction, Lime, Magnesia, methanol, Monochromators, Precipitation (chemical), Temperature scanning, Titanium dioxide, X ray powder diffraction},
	isbn = {00171050 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-3042549927\&partnerID=40\&md5=62f3cbbb74e944ac2e066db7432db201},
	author = {Dias, A.G. and Tsuru, K. and Hayakawa, S. and Lopes, M.A. and Santos, J.D. and Osaka, A.}
}
@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.}
}
@conference {2470,
	title = {"In vitro" bioactivity evaluation of CaO-P                    2O 
                    5 glass-hydroxylapatite thin coatings produced by pulsed laser deposition
},
	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: Arias, J.L.; Depto. de F{\'\i}sica Aplicada, Universidade de Vigo, Lagoas-Marcosende 9, E-36200 Vigo, SpainReferences: Arias, J.L., (1997) J Mater Sci Mater Med, 8, p. 873;Ferraz, M.P., (1999) J Biomed Mater Res, 45, p. 373; 
Ferraz, M.P., (1999) J. Mat Sci Mat Med, 10, p. 567
},
	month = {2004///},
	pages = {1774},
	address = {Sydney},
	abstract = {The synthesis of coatings based on hydroxyapatites (HA) and glass modified hydroxyapatite targets by pulsed laser deposition, was presented. It was observed that coatings produced from HA targets keep their crystallinity through all their thickness, while there is a loss of crystallinity towards the surface of the HA+1.5G coatings. On immersion in SBF for three days, the coatings produced from HA targets suffered a loss of crystallinity near the surfaces, while the crystallinity of the coatings produced from HA+1.5G targets increased. It was also observed that addition of 1.5wt\% of CaO-P                        2O
                        5 glasses to HA thin coatings produced by pulsed laser deposition leads to a significant structural change of the coating surface.
},
	keywords = {Apatites, Bioactivity, Calcium Compounds, Coatings, Crystalline materials, Crystalline phases, hydroxyapatite, Mixtures, Phosphorus Compounds, Pressure effects, Pulsed laser deposition, Scanning electron microscopy, Substrates, Thin coatings, X ray diffraction, X ray photoelectron spectroscopy},
	isbn = {1877040193 (ISBN); 9781877040191 (ISBN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-13844299568\&partnerID=40\&md5=869dc43fe34d9345a4c3b944a06faad1},
	author = {Arias, J.L. and Liste, S. and Gonz{\'a}lez, P. and Serra, J. and Le{\'o}n, B. and Ferraz, M.P. and Monteiro, F.J. and Giao, D. and P{\'e}rez-Amor, M.}
}
@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.}
}
@book {2479,
	title = {Influence of characteristics of the starting hydroxyapatite powders and of deagglomeration procedure, on rheological behaviour of HA suspensions},
	series = {Materials Science ForumMater Sci Forum},
	volume = {455-456},
	year = {2004},
	note = {Conference code: 63332Cited By (since 1996): 5Export Date: 21 November 2012Source: ScopusCODEN: MSFOELanguage of Original Document: EnglishCorrespondence Address: Ferreira, J.M.F.; Dept. of Ceramics Engineering, CICECO, Univ. of Aveiro, 3810-193 Aveiro, Portugal; email: jmf@cv.ua.ptReferences: Kanazawa, T., (1989) Inorganic Phosphate Materials, 52, p. 15. , Materials Science Monographs, (Elsevier Science Publishers, Amsterdam);Elliot, J.C., (1994) Structure and Chemistry of the Apatites and Other Calcium Orthophosphates. Studies in Organic Chemistry, 18. , Elsevier Science, Netherlands; 
Ohgushi, H., Okumura, M., Yoshikawa, T., Inoue, K., Senpuku, N., Tamai, S., Shors, E.C., (1992) J. Biomed. Mater. Res., 26, p. 885; 
Saggio-Woyanski, J., Scott, C., (1992) Am. Ceram. Soc. Bull., 71, p. 1674; 
Lyckfeldt, O., Ferreira, J.M.F., (1998) J. Eur. Ceram. Soc., 18, p. 131; 
Lorenzo, L.M.R., (1999), PhD Thesis MadridOlhero, S.M., Ferreira, J.M.F., (2003) Powder Thecnology, , accepted for publication
},
	month = {2004///},
	pages = {361 - 365},
	address = {Caparica},
	abstract = {In order to evaluate how the characteristics of starting HA powders affect their dispersion ability, several tests were made, including particle size distribution, particle morphology (SEM) and rheological measurements of the suspensions. To enable the preparation of concentrated suspensions as high as possible, the influence of deagglomeration procedure on rheological behaviour of hydroxyapatite aqueous suspensions was evaluated. The results revealed significant differences in the dispersing ability of the powders and on the maximum achievable solids loading. In fact, the maximum solids volume fraction that was possible to incorporate in the initial suspension of HA                        R was only 35-vol.\%, while with the HA
                        S it has been possible to start from 45-vol.\% suspensions. Ball milling revealed to be more efficient than planetary milling in the preparation of HA
                        R suspensions, and enabled to achieve a maximum solids volume fraction of 45-vol.\% at the end of long milling period, which included successive incremental additions of powder. The powder HA
                        S exhibited a much better dispersing ability, enabling the preparation of 60-vol.\% solids only after two hours of planetary milling.
},
	keywords = {Agglomeration, Bioceramics, crystallography, Deagglomeration, Foaming processes, hydroxyapatite, medicine, morphology, Particle size analysis, Powder characteristics, Powders, rheology, Scanning electron microscopy, Sedimentation, Sintering},
	isbn = {02555476 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-17044460745\&partnerID=40\&md5=5c72052a267f3f7c544667ce61b5e434},
	author = {Lemos, A.F. and Santos, J.D. and Ferreira, J.M.F.},
	editor = {Martins R. and Fortunato E. and Ferreira I. and Dias C.}
}
@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 {2476,
	title = {Protein adsorption effect on in vitro acellular biodegradation of CaO-P                    2O
                    5 glass ceramics
},
	series = {Materials Science ForumMater Sci Forum},
	volume = {455-456},
	year = {2004},
	note = {Conference code: 63332Cited By (since 1996): 2Export Date: 21 November 2012Source: ScopusCODEN: MSFOELanguage of Original Document: EnglishCorrespondence Address: Santos, J.D.; Inst. de Engenharia Biom{\'e}dica, Laborat{\'o}rio de Biomateriais, Rua do Campo Alegre, 823, 4150-180 Porto, Portugal; email: jdsantos@fe.up.ptReferences: Zeng, Chittur, K.K., Lacefield, W.R., (1999) Biomaterials, 20, p. 377;Ohta, Monna, H., Takahashi, S., (2001) J. Biomed. Mater. Res., 55, p. 409; 
Zyman, Z., Dedukh, N.V., Glusko, V.I., Shcherbyna, S.V., (2002) 17 th European Society for Biomaterials Conference Proceedings, , Barcelona; 
Krajewski, Malavoti, R., Piancatelli, A., (1996) Biomaterials, 17, p. 53; 
El-Ghannam, Ducheyne, P., Shapiro, I.M., (1997) Biomaterials, 18 (4); 
Takami, (1998) J. Biomed. Mater. Res., 40, p. 24; 
Puleo, A., Bizios, R., (1992) J. Biomed. Mater. Res., 26, p. 291; 
Dubois, C., Souchier, C., Couble, M.L., Exbrayat, P., Lissac, M., (1999) Biomat., 20, p. 1841; 
Green, J., Davies, M.C., Roberts, C.J., Tendler, S.J.B., (1997) Biomaterials, 18, p. 405; 
Haynes, C.A., Norde, W., (1994) Colloids and Surfaces B: Biointerfaces, 2, p. 517; 
Dias, G., Lopes, M.A., Gibson, I.R., Santos, J.D., (2002) 17 th Europ. Soc. for Biomat. Conf. Proc., , Barcelona; 
Chun, Na, S.W., Lee, J.H., Chung, J.P., Ryu, I.C., Kim, S.Y., (2002) Key Eng. Mat., 218-220, p. 149
},
	month = {2004///},
	pages = {398 - 401},
	address = {Caparica},
	abstract = {This work reports the in vitro accelular behaviour of a glass ceramic (45P                        2O
                        5-45CaO-5MgO-5K
                        2O), which has significant potential for being used as an alloplastic bone graft. Experiments were carried out by immersing granule samples for a period up to 90 days in Trisbuffer solution at pH 7.4, in the presence and absence of a foetal bovine serum (FBS). The release of calcium, phosphorus, and potassium ions as well as the amount of protein adsorbed was followed by several techniques. The results obtained seem to indicate that the adsorption of proteins on the surface of the material, although causing an initial delay in the degradation, does not hamper the ionic exchange and therefore it is not a barrier for the degradation of the glass ceramic.
},
	keywords = {Adsorption, Bioceramics, Biodegradation, Calcium Compounds, Foetal bovine serum (FBS), Glass ceramics, Hard tissue, Ion exchange, Ionic strength, pH effects, Protein adhesion, Proteins, Tissue},
	isbn = {02555476 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-3142740181\&partnerID=40\&md5=5452672cf92db3be0d9f232ce3b1a83e},
	author = {Dias, A.G. and Lopes, M.A. and Santos, J.D.},
	editor = {Martins R. and Fortunato E. and Ferreira I. and Dias C.}
}
@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; 
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; 
Lycfeldt, O., Ferreira, J.M.F., (1998) J. Eur. Ceram. Soc., 18, p. 131; 
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. Europ. Ceram. Soc., 20 (4), p. 423; 
Dhara, S., Bhargava, P., (2001) J. Am. Ceram. Soc., 84 (12), p. 3048; 
Janney, M.A., Omatete, O., Walls, C., Nunn, S., Ogle, R., Westmoreland, G., (1998) J. Am. Ceram. Soc., 81 (3), p. 581; 
Lumry, R., Eyring, H., (1954) J. Phys. Chem., 58, p. 110; 
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 {2513,
	title = {Effect of heat treatment on relative content of β-Ca                    2P
                    2O
                    7 crystalline phase in calcium phosphate glass-ceramics
},
	journal = {Kuei Suan Jen Hsueh Pao/ Journal of the Chinese Ceramic SocietyKuei Suan Jen Hsueh Pao},
	volume = {31},
	year = {2003},
	note = {Cited By (since 1996): 1Export Date: 21 November 2012Source: ScopusCODEN: KSYHALanguage of Original Document: ChineseCorrespondence Address: Li, Y.; Dept. of Mat. Sci. and Eng., Zhejiang Univ., Hangzhou 310027, ChinaReferences: Hench, L.L., Bioceramics (1998) J. Am. Ceram. Soc., 81, pp. 1705-1731;Kitsugi, T., Yamamuro, T., Nakamura, T., Four calcium phosphate ceramics as bone substitute for non-weight bearing (1993) Biomaterials, 14, pp. 216-221; 
Kitsugi, T., Yamamuro, T., Nakamura, T., Transmission electron microscopy observations at the interface of bone and four types of calcium phosphate ceramics with different calcium/phosphorus molar ratios (1995) Biomaterials, 16, pp. 1101-1107; 
Yu, B., Liang, K., Gu, S., (2002) J. Chin. Ceram. Soc., 30 (1), pp. 77-80; 
Kasuga, T., Sawada, M., Nogami, M., Biomaterials, bioactive ceramics prepared by sintering and crystallization of calcium phosphate invert glasses (1999) Biomaterials, 20, pp. 1415-1420; 
Zhang, Y., Santos, J.D., Microstructural characterization and in vitro apatite formation of CaO-P 2O 5-TiO 2MgO-Na 2O glass-ceramics (2001) J. Eur. Ceram. Soc., 21, pp. 169-175; 
Kokubo, T., Ito, S., Sakka, S., Formation of a high strength bioactive glass ceramic in the system MgO-CaO-SiO 2-P 2O 5 (1986) J. Mater. Sci., 21, pp. 536-540; 
Hosono, H., Zhang, Z., Abe, Y., Porous glass-ceramics in the CaO-TiO 2-P 2O 5 system (1989) J. Am. Ceram. Soc., 72, pp. 1587-1589; 
Zhang, Y., Santos, J.D., Crystallization and microstructure analysis of calcium phosphate-based glass ceramics for biomedical applications (2000) J. Non-Cryst. Solids, 272, pp. 14-21; 
Li, Y., Study on bioactive glass-ceramics in Na 2O-TiO 2-CaO-P 2O 5 system (2001), Chinese source, Dissertation, Hangzhou: Zhejiang UniversityKokubo, T., Surface chemistry of bioactive glass-ceramics (1990) J. Non.-Cryst. Solids, 120, pp. 138-151
},
	month = {2003///},
	pages = {669 - 672+677},
	abstract = {The 3Na                        2O-12TiO
                        2-57CaO-28P
                        2O
                        5 glass was heat-treated to form glass-ceramics under different conditions. The relationships between the heat-treatment conditions and the content of β-Ca
                        2P
                        2O
                        7 in the glass-ceramics, bioactivity of the glass-ceramics were investigated. The experimental results show that the glass-ceramics contain crystalline phases of β-Ca
                        2P
                        2O
                        7, CaTi
                        4(PO
                        4)
                        6, NaTi
                        2(PO
                        4)
                        3 and TiP
                        2O
                        7 after heat-treatment, in which β-Ca
                        2P
                        2O
                        7 crystalline phase is a dominant one; the content of β-Ca
                        2P
                        2O
                        7 crystalline phase in the glass-ceramics increases with the increase of nucleation temperature and time; and the glass-ceramics with more β-Ca
                        2P
                        2O
                        7 crystalline phase has a better bioactivity. The role of heat-treatment in increasing the content of β-Ca
                        2P
                        2O
                        7 crystalline phase in the glass-ceramics is attributed to the crystallization of β-Ca
                        2P
                        2O
                        7 involved in the simultaneous occurrence of the glass phase separation and nucleation processes. Due to the better ability of β-Ca
                        2P
                        2O
                        7 in promoting bioactivity, the glass-ceramics with more β-Ca
                        2P
                        2O
                        7 phase have stronger bioactivity. Therefore, the bioactivity of the glass-ceramics could be changed by heat treatment.
},
	keywords = {Bioactivity, Calcium Compounds, calcium phosphate, Crystalline materials, Crystalline phase, Crystallization, Glass ceramics, Glass-ceramics, Heat treatment, Nucleation, Phase separation, Phosphates},
	isbn = {04545648 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0347513558\&partnerID=40\&md5=1155e6484ca4dd506ea1406fd2544671},
	author = {Li, Y. and Weng, W. and Du, P. and Shen, G. and Han, G. and Santos, J.D. and Lopes, A.M.}
}
@article {2505,
	title = {In vitro degradation studies of calcium phosphate glass ceramics prepared by controlled crystallization},
	journal = {Journal of Non-Crystalline SolidsJ Non Cryst Solids},
	volume = {330},
	year = {2003},
	note = {Cited By (since 1996): 28Export Date: 21 November 2012Source: ScopusCODEN: JNCSBdoi: 10.1016/j.jnoncrysol.2003.08.056Language of Original Document: EnglishCorrespondence Address: Santos, J.D.; Depto. de Engenharia Metalurgica, Fac. de Engenharia da Univ. do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal; email: jdsantos@fe.up.ptReferences: Hall, B.K., (1992) Bone, Fracture Repair and Regeneration, 5. , CRC;Vidal, J., Dossa, J., Le Tissu Osseux (1990) Collection: Biologie de l{\textquoteright}Appareil Locomoteur, , L. Teot (Ed.); 
Legeros, R.Z., (1991) Calcium Phosphates in Oral Biology and Medicine, , H.M. Meyers, N.Y. Karger (Eds.); 
Yamamuro, T., Hench, L.L., Wilson, J., Handbook of Bioactive Ceramics (1990) Bioactive Glasses and Glass Ceramics, 1. , Takao (Ed.), CRC; 
Hench, L.L., Wilson, J., Wilson, J., Handbook of Bioactive Ceramics (1990) Calcium Phosphate and Hydroxyapatite Ceramics, 2. , Yamamuro T. (Ed.), CRC; 
Kitsugi, T., Yamamuro, T., Nakamura, T., Oka, M., (1995) Biomaterials, 16, p. 1101; 
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Zhang, Y., Lopes, M.A., Santos, J.D., (2001) Key Eng. Mater., 192-195, p. 643; 
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Chun, S., Na, S.W., Lee, J.H., Chung, J.P., Ryu, I.C., Kim, S.Y., (2002) Key Eng. Mater., 218-220, p. 149
},
	month = {2003///},
	pages = {81 - 89},
	abstract = {Calcium phosphate glass ceramics with incorporation of small additions of two nucleating agents, MgO and K                        2O were prepared in the metaphosphate and pyrophosphate region, using an appropriate two-step heat treatment of controlled crystallization defined by differential thermal analysis results. Identification and quantification of crystalline phases precipitated from the calcium phosphate glass were performed using X-ray diffraction and Rietveld analysis. The β-Ca
                        2P
                        2O 
                        7 (β-DCP), KCa(PO
                        3)
                        3, β-Ca(PO 
                        3)
                        2 and Ca
                        4P
                        6O
                        19 phases were detected in the glass ceramics. In order to evaluate the degradation of the glass ceramics prepared, degradation studies were carried out during 42 days in Tris-HCl solution at 37 {\textdegree}C, pH 7.4, using granules in the range of 355-415 μm. The materials presented a weight loss ranging up to 12\%. The ions leached during the immersion mainly originated from the KCa(PO 
                        3)
                        3 phase, probably due to the presence of K
                        + ion in the calcium metaphosphate, and the residual glassy phase. The structural changes at the surface of materials during degradation have been analyzed by Fourier transform infrared spectroscopy and X-ray diffraction. Results showed that significant surface changes occurred with immersion time, with the decrease of KCa(PO
                        3)
                        3, β-Ca
                        2P 
                        2O
                        7 and β-Ca(PO
                        3)
                        2 phases occurring at different periods of immersion. This study has demonstrated an easy way to prepared calcium phosphate materials with specific calcium phosphate phases and crystallization, and therefore specific degradation rates. {\textcopyright} 2003 Elsevier B.V. All rights reserved.
},
	keywords = {Calcium Compounds, Crystallization, Degradation, Differential thermal analysis, Fourier transform infrared spectroscopy, Glass ceramics, Heat treatment, Nucleating agents, Nucleation, X ray diffraction},
	isbn = {00223093 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0242365617\&partnerID=40\&md5=ae711b7199b40fd65fe3d89e4a14903b},
	author = {Dias, A.G. and Lopes, M.A. and Gibson, I.R. and Santos, J.D.}
}
@article {2535,
	title = {Densification route and mechanical properties of Si                    3N
                    4-bioglass biocomposites
},
	journal = {BiomaterialsBiomaterials},
	volume = {23},
	year = {2002},
	note = {Cited By (since 1996): 33Export Date: 21 November 2012Source: ScopusCODEN: BIMADdoi: 10.1016/S0142-9612(01)00194-6PubMed ID: 11771704Language of Original Document: EnglishCorrespondence Address: Santos, J.D.; Sec{\c c}{\~a}o de Materiais, Fac. Eng. da Univ. do Porto (FEUP), Universidade do Porto, Rua Roberto Frias, 4200-465 Porto Cedex, Portugal; email: jdsantos@fe.up.ptChemicals/CAS: Biocompatible Materials; Bioglass; Ceramics; Composite Resins; Silicon Compounds; silicon nitride, 12033-89-5Tradenames: BioglassReferences: Kue, R., Sohrabi, A., Nagle, D., Frondonza, C., Hungerford, D., Enhanced proliferation and osteacalcin production by human osteablast-like cells on silicon nitride ceramic discs (1999) Biomaterials, 20, pp. 1195-1201;Howlett, C., McCartney, E., Ching, W., The effects of silicon nitride ceramic on rabbit skeletal cells and tissues (1989) Clin Orthop, 244, pp. 296-301; 
Hench, L.L., Biomaterials: A forecast for the future (1998) Biomaterials, 19, pp. 1419-1423; 
Radin, S., Ducheyne, P., Falaize, S., Hammond, A., In vitro transformation of bioactive glass granules into Ca-P shells (2000) J Biomed Mater Res, 49, pp. 264-272; 
Santos, J.D., Amaral, M., Oliveira, S.M., Lopes, M.A., Silva, R.F., Silicon Nitride-Bioglass{\textregistered}45S5 composite for biomedical applications (2001) Key Eng Mater, 192-195, pp. 589-592; 
Gazzara, C.P., Messier, D.R., Determination of phase content of Si 3N 4 by X-ray diffraction analysis (1997) Am Ceram Soc Bull, 56 (9), pp. 777-780; 
Niihara, K., Morena, R., Hasselman, D.P., Evaluation of K IC of brittle solids by the indentation method with low crack-to-indent ratios (1982) J Mater Sci Lett, 1, pp. 13-16; 
Standard test method for dynamic Young{\textquoteright}s modulus, shear modulus, and Poisson{\textquoteright}s ratio for advanced ceramics by impulse excitation of vibration; 
Kingery, W.D., Densification during sintering in the presence of a liquid phase. I. Theory (1959) J Appl Phys, 30 (3), pp. 301-306; 
Ziegler, G., Heinrich, J., W{\"o}tting, G., Review: Relationships between processing, microstructure and properties of dense and reaction-bonded silicon nitride (1987) J Mater Sci, 22, pp. 3041-3086; 
Filho, O.P., LaTorre, G.P., Hench, L.L., Effect of crystallization on apatite-layer formation of bioactive glass 45S5 (1996) J Biomed Mater Res, 30, pp. 509-514; 
Evans, A.G., Wilshaw, T.R., Quasi-static solid particle damage in brittle solids I. Observations, analysis and implications (1976) Acta Metall, 24, pp. 939-956; 
Yamamuro, T., Reconstruction of the iliac crest with bioactive glass-ceramic prostheses (1990) Handbook of Bioactive Ceramics, 1, pp. 335-342. , Yamamuro T, Hench LL, Wilson J, editors. Boca Raton: CRC Press; 
Hench, L.L., Bioceramics (1998) J Am Ceram Soc, 81, pp. 1705-1728; 
Ravaglioli, A., Krajewski, A., (1992) Bioceramics - materials, properties and applications, , London: Chapman \& Hall; 
Kong, Y.M., Kim, S., Kim, H.E., Reinforcement of hydroxyapatite bioceramic by addition of ZrO 2 coated with Al 2O 3 (1999) J Am Ceram Soc, 82 (11), pp. 963-968; 
Ducheyne, P., Marcolongo, M., Schepers, E., Bioceramic composites (1993) An Introduction to Bioceramics. Advanced series in ceramics, 1, pp. 281-297. , Hench L, Wilson J, editors. Singapore: World Scientific. Chapter 15
},
	month = {2002///},
	pages = {857 - 862},
	abstract = {The processing route and the final microstructural and mechanical characteristics of a novel biomaterial composite are described. This new material is composed of 70 wt\% Si                        3N
                        4 ceramic phase and 30 wt\% bioglass, the later performing as a liquid sintering aid system and simultaneously providing bioactivity characteristics to the composite. The conditions for fabrication of an almost fully dense material (\~{}98\% of relative density) were pursued. Optimised parameters were 1350{\textdegree}C-40min-30 MPa by hot-pressing technique. The very fast densification rate of the process avoided the crystallisation of the bioglass intergranular phase and therefore its intrinsic properties were maintained. Also, the large amount of glassy phase assured the densification by liquid phase assisted grain rearrangement without Si
                        3N
                        4 phase transformation. The final mechanical properties of the Si
                        3N
                        4-bioglass were as follows: fracture toughness, K
                        IC = 4.4 MPa m
                        1/2; Vickers hardness, H
                        V = 10.3 GPa; Young{\textquoteright}s modulus, E = 197 GPa; bending strength, σ
                        R = 383 MPa; Weibull modulus, m = 8.3. These values provide an attractive set of properties among other bioactive materials, namely by upgrading the main drawback of bioceramics and bioglasses for high-load medical applications, which is the lack of satisfactory fracture toughness. {\textcopyright} 2001 Elsevier Science Ltd. All rights reserved.
},
	keywords = {3N, 4-bioglass composites, article, Bending strength, Biocompatible Materials, biomaterial, Biomaterial composites, Biomaterials, Ceramic materials, ceramics, Composite Resins, Crystallization, Densification, Densification behaviour, density, Elastic moduli, Fracture toughness, glass, hardness, heat, Hot pressing, Hot-pressing, Kinetics, Mechanical properties, phase transition, Phase transitions, priority journal, Si, Silicon compounds, silicon derivative, Sintering, strength, Stress, Mechanical, technique, Thermodynamics, Vickers hardness testing, X-Ray Diffraction, young modulus},
	isbn = {01429612 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0036132099\&partnerID=40\&md5=e7c2bb690245a7c1d0c856ec1e6f7fb0},
	author = {Amaral, M. and Lopes, M.A. and Silva, R.F. and Santos, J.D.}
}
@article {2531,
	title = {Porous glass reinforced hydroxyapatite materials produced with different organic additives},
	journal = {Journal of Non-Crystalline SolidsJ Non Cryst Solids},
	volume = {304},
	year = {2002},
	note = {Cited By (since 1996): 31Export Date: 21 November 2012Source: ScopusCODEN: JNCSBdoi: 10.1016/S0022-3093(02)01036-0Language of Original Document: EnglishCorrespondence Address: Prado da Silva, M.H.; DEM, Universidade Federal do Ceara, PO Box 12144, 60455-760 Fortaleza, CE, Brazil; email: mpsilva@ibmc.up.ptReferences: Ferraz, M.P., Knowles, J.C., Olsen, I., Monteiro, F.J., Santos, J.D., (2000) Biomaterials, 21, p. 813;Ferraz, M.P., Knowles, J.C., Olsen, I., Monteiro, F.J., Santos, J.D., (1999) J. Biomed. Mater. Res., 47, p. 603; 
Ferraz, M.P., Monteiro, F.J., Santos, J.D., (1999) J. Biomed. Mater. Res., 45, p. 376; 
Silva, P.L., Santos, J.D., Monteiro, F.J., Knowles, J.C., (1998) Surf. Coat. Tech., 102, p. 191; 
Zhang, Y., Santos, J.D., (2000) J. Non-Cryst. Solids, 272, p. 14; 
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; 
Santos, J.D., Reis, R.L., Monteiro, F.J., Knowles, J.C., Hastings, G.W., (1995) J. Mater. Sci: Mat. Med., 6, p. 348; 
Santos, J.D., Jha, L.J., Monteiro, F.J., (1996) J. Mater. Sci: Mater. Med., 7, p. 181; 
Lemos, A.F., Ferreira, J.M.F., (2000) Mater. Sci. Eng, 11, p. 35; 
Lyckfeldt, O., Ferreira, J.M.F., (1998) J. Eur. Ceram. Soc., 18, p. 131; 
Saggio-Woyansky, J., Scott, C.E., Minnear, W.P., (1992) Am. Ceram. Soc. Bull., 71, p. 1674; 
De Groot, K., Klein, C.P.A.T., Wolke, J.G.C., De Blieck-Hogervorst, J.M.A., (1990) Hand. Bioact. Cer., 2, p. 3. , CRC, Boca Raton, FL; 
Knowles, J.C., Santos, J.D., Hastings, G.W., patent number WO0068164, 2000Larson, A.C., Von Dreele, R.B., Lujan M., Jr., GSAS, Neutron Scattering Centre, Los Alamos National Laboratory, CA, 1990Kay, M.I., Young, R.A., Posner, A.S., (1964) Nature, 204, p. 1050; 
Lopes, M.A., Santos, J.D., Monteiro, F.J., Knowles, J.C., (1998) J. Biomed. Mater. Res., 39, p. 244
},
	month = {2002///},
	pages = {286 - 292},
	abstract = {In the present study three different organic additives were used to produce porous structures of a CaO-P                        2O
                        5 glass reinforced hydroxyapatite potato starch, almond crust and wax spheres. The produced samples were analysed by scanning electron microscopy, X-ray diffraction with Rietveld refinement, differential thermal analysis and mercury porosimetry. The techniques used in this study enabled the production of glass reinforced hydroxyapatite samples with various pore diameters. Two different techniques were used to produce porous glass reinforced hydroxyapatite samples: a dry method using wax spheres as pore formers and a wet method in alcoholic suspension, where almond crust and potato starch were used as pore formers. The final microstructure consists of hydroxyapatite, α-tricalcium phosphate and β-tricalcium phosphate. X-ray diffraction and scanning electron microscopy analysis revealed different percentages of phases when comparing dense and porous glass reinforced hydroxyapatite specimens. These hard materials are intended to be used as bone defect fillers. {\textcopyright} 2002 Elsevier Science B.V. All rights reserved.
},
	keywords = {Additives, Differential thermal analysis, Fillers, glass, hydroxyapatite, Microstructure, Porosimeters, Porous glasses, Porous materials, Scanning electron microscopy, Suspensions (fluids), X ray diffraction analysis},
	isbn = {00223093 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0036605142\&partnerID=40\&md5=fe083da9c9790ba4439e741dc6eb8760},
	author = {Prado da Silva, M.H. and Lemos, A.F. and Gibson, I.R. and Ferreira, J.M.F. and Santos, J.D.}
}
@book {2522,
	title = {Production of porous biomaterials based on glass-reinforced hydroxyapatite composites},
	series = {Key Engineering MaterialsKey Eng Mat},
	volume = {230-232},
	year = {2002},
	note = {Conference code: 60281Cited By (since 1996): 5Export Date: 21 November 2012Source: ScopusCODEN: KEMAELanguage of Original Document: EnglishCorrespondence Address: Prado da Silva, M.H.; Instituto de Engenharia Biomedica, Laborat{\'o}rio de Biomaterials, Rua do Campo Alegre 823, PT-4150-180 Porto, PortugalReferences: Lemos, A.F., Ferreira, J.M.F., (2000) Materials Science and Engineering, 11, pp. 35-40;Saggio-Woyansky, J., Scott, C.E., Minnear, W.P., (1992) Amer. Cer. Society Bulletin, 71 (11), pp. 1674-1682; 
Lopes, M.A., Santos, J.D., Monteiro, F.J., Ohtsuki, C., Osaka, A., Kaneko, S., Inouue, H., (2001) J. Biom. Mater. Res., 54, pp. 463-469; 
Knowles, J.C., Santos, J.D., Hastings, G.W., (2000) Sintered Hydroxyapatite Composition and Method for the Preparation thereof, , Patent number WO0068164
},
	month = {2002///},
	pages = {483 - 486},
	address = {Coimbra},
	abstract = {In this study, porous GR-HA composites were produced using a calcium-phosphate glass with the composition, in mol\%, 75P                        2O
                        5-15CaO-10CaF
                        2. The composites were obtained by wet mixing 4.0\% (w/w) of the glasses with hydroxyapatite (HA) powder (batch P120) (Plasma Biotal; Tideswell, U.K.), pressing and sintering. Two different organic additives were used as pore formers: potato starch and almond crust. This processing route was effective in producing a homogeneous microstructure of equiaxed grains. The bulk density of the samples decreased with the volume fraction increase in the content of pore formers. Scanning electron microscopy and mercury porosimetry analyses showed to be complementary techniques in characterising the pore size and distribution.
},
	keywords = {Biomaterials, Composite materials, glass, Glass-reinforced hydroxyapatite composites, GR-HA Composites, hydroxyapatite, Macroporous Bioceramics, Mercury (metal), Microstructure, Organic Additives, Pore size, Porous materials, Powders, Pressing (forming), Scanning electron microscopy, Sintering, Starch},
	isbn = {10139826 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0036432238\&partnerID=40\&md5=9af5590c70f4defe5e87b9a72042e11b},
	author = {Prado da Silva, M.H. and Lemos, A.F. and Ferreira, J.M.F. and Lopes, M.A. and Santos, J.D.},
	editor = {Vieira T.}
}
@article {2524,
	title = {Si                    3N
                    4-bioglass composites stimulate the proliferation of MG63 osteoblast-like cells and support the osteogenic differentiation of human bone marrow cells
},
	journal = {BiomaterialsBiomaterials},
	volume = {23},
	year = {2002},
	note = {Cited By (since 1996): 31Export Date: 21 November 2012Source: ScopusCODEN: BIMADdoi: 10.1016/S0142-9612(02)00249-1PubMed ID: 12361631Language of Original Document: EnglishCorrespondence Address: Fernandes, M.H.; Faculdade de Medicina Dentaria, Universidade do Porto, Rua Dr Manuel Pereira da Silva, 4200-393 Porto, Portugal; email: mhrf@portugalmail.ptChemicals/CAS: Alkaline Phosphatase, EC 3.1.3.1; Calcium, 7440-70-2; Phosphorus, 7723-14-0; Silicon Compounds; silicon nitride, 12033-89-5References: Amaral, M., Lopes, M.A., Silva, R.F., Santos, J.D., Densification route and mechanical properties of Si 3N 4-bioglass biocomposites (2002) Biomaterials, 23, pp. 857-862;Kue, R., Sahrabi, A., Nagle, D., Frondonza, C., Hungerford, D., Enhanced proliferation and osteocalcin production by human osteoblast-like cells on silicon nitride ceramic discs (1999) Biomaterials, 20, pp. 1195-1201; 
Howlett, C., McCartney, E., Ching, W., The effects of silicon nitride ceramic on rabbit skeletal cells and tissues (1989) Clin Orthop, 244, pp. 296-301; 
Hench, L.L., Biomaterials: A forecast for the future (1998) Biomaterials, 19, pp. 1419-1423; 
Radin, S., Ducheyne, P., Falaize, S., Hammond, A., In vitro transformation of bioactive glass granules into Ca-P shells (2000) J Biomed Mater Res, 49, pp. 264-272; 
Santos, J.D., Amaral, M., Oliveira, S.M., Lopes, M.A., Silva, R.F., Silicon Nitride - Bioglass {\textregistered} 45S5 composite for biomedical applications (2001) Key Eng Mater, 192-195, pp. 589-592; 
Clover, J., Gowen, M., Are MG63 and HOS TE 85 human osteosarcoma cell lines representative models of the osteoblastic phenotype? (1994) Bone, 15, pp. 585-591; 
Maniatopoulos, C., Sodek, J., Melcher, A., Bone formation in vitro by stromal cells obtained from bone marrow of young adult rats (1988) Cell Tissue Res, 254, pp. 317-330; 
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Gundle, R., Joyner, C.J., Triffit, J.T., Human bone tissue formation in diffusion chamber culture in vivo by bone derived cells and marrow stromal fibroblastic cells (1995) Bone, 16, pp. 597-601; 
Stein, G.S., Lian, J.B., Stein, J.L., Van Wijnem, A.J., Frenkel, B., Montecino, M., Mechanisms regulating osteoblast proliferation and differentiation (1996) Principles of bone biology, pp. 69-86. , J.P. Bilizikian, L.G. Raisz, \& G.A. Rodan. New York: Academic Press; 
Fernandes, M.H., Costa, M.A., Carvalho, G.S., Mineralization in serially passaged human alveolar bone cells (1997) J Mater Sci: Mater Med, 8, pp. 61-65; 
Coelho, M.J., Fernandes, M.H., Human bone cell cultures in biocompatibility testing. Part II: Effect of ascorbic acid β-glycerophosphate and dexamethasone on osteoblastic differentiation (2000) Biomaterials, 21, pp. 1095-1102; 
Costa, M.A., Fernandes, M.H., Long-term effects of parathyroid hormone, 1,25-dihydroxyvitamin D3 and dexamethasone on the cell growth and functional activity of human osteogenic alveolar bone cell cultures (2000) Pharmacol Res, 42, pp. 345-353; 
Coelho, M.J., Trigo Cabral, A., Fernandes, M.H., Human bone cell cultures in biocompatibility testing. Part I: Osteoblastic differentiation of serially passaged human bone marrow cells cultured in α-MEM and in DMEM (2000) Biomaterials, 21, pp. 1087-1094; 
Aubin, J.E., Liu, F., The osteoblastic lineage (1996) Principles of bone biology, pp. 51-67. , J.P. Bilizikian, L.G. Raisz, \& G.A. Rodan. New York: Academic Press; 
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Ferraz, M.P., Fernandes, M.H., Trigo Cabral, A., Santos, J.D., Monteiro, F.J., In vitro growth and differentiation of osteoblastic-like human bone marrow cells on a glass reinforced hydroxyapatite plasma-speayed coating (1999) J Mater Sci: Mater Med, 10, pp. 567-576; 
Ferraz, M.P., Knowles, J.C., Olsen, I., Monteiro, F.J., Santos, J.D., Flow cytometry analysis of the effects of pre-immersion on the biocompatibility of glass-reinforced hydroxyapatite plasma sprayed coatings (2000) Biomaterials, 21, pp. 813-820; 
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Lopes, M.A., Santos, J.D., Monteiro, F.J., Ohtsuki, C., Osaka, A., Kaneko, S., Inoue, H., 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; 
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},
	month = {2002///},
	pages = {4897 - 4906},
	abstract = {The in vitro osteocompatibility of a novel Si                        3N
                        4-bioglass composite (70-30\% weight proportion) with improved mechanical properties (fracture toughness=4.4MPam
                        1/2; bending strength=383{\textpm}47MPa) is reported. Immersion of the composite samples in culture medium (30min to 7 days) resulted in rapid protein adsorption to the surface and, also, dissolution of the intergranular phase of bioglass (time-dependent process) with the formation of different size cavities. "As-received" and pre-treated material samples presented a similar behaviour concerning the proliferation of MG63 osteoblast-like cells, evaluated during a 5-day culture period. Seeded materials showed a higher cell growth rate as compared to cultures performed on the standard plastic culture plates. To assess the osteogenic potential of the composite, "as-received" material samples were seeded with human bone marrow cells and cultured for 35 days in experimental conditions that favour the development of the osteoblastic phenotype. The cell adhesion process was similar to that observed in control cultures. Cells successfully adapted to the irregularities of the surface and were able to grow towards inside the cavities; in addition, osteogenic differentiation occurred with the formation of abundant cell-mediated mineralised deposits. Results suggest that this Si
                        3N
                        4-bioglass composite seems to be a promising candidate for high-stress medical applications. {\textcopyright} 2002 Elsevier Science Ltd. All rights reserved.
},
	keywords = {3N, 4-bioglass composite, Adhesion, Adsorption, alkaline phosphatase, article, Biocompatibility, Bioglass, Biomaterials, bone marrow cell, Bone Marrow Cells, Calcium, cell adhesion, Cell Culture Techniques, cell differentiation, Cell Division, cell growth, cell proliferation, composite material, controlled study, culture medium, Dissolution, glass, Growth kinetics, human, Human bone marrow cells, human cell, Humans, immersion, in vitro study, Mechanical properties, MG63 osteoblast-like cells, Microscopy, Electron, Scanning, osteoblast, Osteoblasts, Osteocompatibility, Osteogenic differentiation, phenotype, phosphorus, priority journal, Proteins, rigidity, Si, Silicon compounds, silicon derivative, surface property, tensile strength, Time Factors},
	isbn = {01429612 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0036888731\&partnerID=40\&md5=2235d0ad5a92fb1ae088f736b6e7ca4d},
	author = {Amaral, M. and Costa, M.A. and Lopes, M.A. and Silva, R.F. and Santos, J.D. and Fernandes, M.H.}
}
@article {2527,
	title = {Soluble silk-like organic matrix in the nacreous layer of the bivalve Pinctada maxima: A new insight in the biomineralization field},
	journal = {European Journal of BiochemistryEur. J. Biochem.},
	volume = {269},
	year = {2002},
	note = {Cited By (since 1996): 58Export Date: 21 November 2012Source: ScopusCODEN: EJBCAdoi: 10.1046/j.1432-1033.2002.03203.xPubMed ID: 12383258Language of Original Document: EnglishCorrespondence Address: Lopez, E.; Lab. de Physiologie Gen. et Comparee, UMR CNRS 8572, Museum National d{\textquoteright}Histoire Naturelle, 7 rue Cuvier, 75231 Paris Cedex 05, France; email: lopez@mnhn.frChemicals/CAS: Amino Acids; Calcium, 7440-70-2; Edetic Acid, 60-00-4; Extracellular Matrix Proteins; Glycosaminoglycans; Insect Proteins; SilkReferences: Crenshaw, M.A., The soluble matrix from Mercenaria mercenaria shell (1972) Biomineralization, 6, pp. 6-11;Krampitz, G., Engels, J., Cazaux, C., Biochemical studies on water-soluble proteins and related components of gastropod shells (1976) The Mechanisms of Mineralization in the Invertebrates and Plants, pp. 175-190. , Watabe, N. \& Wilbur, K.M., eds. The Barush B.W. Library in Marine Science no. 5, The University of South Carolina Press, Columbia; 
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},
	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); 
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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 {2528,
	title = {Wettability and surface charge of Si                    3N
                    4-bioglass composites in contact with simulated physiological liquids
},
	journal = {BiomaterialsBiomaterials},
	volume = {23},
	year = {2002},
	note = {Cited By (since 1996): 18Export Date: 21 November 2012Source: ScopusCODEN: BIMADdoi: 10.1016/S0142-9612(02)00155-2Language of Original Document: EnglishCorrespondence Address: Santos, J.D.; Laborat{\'o}rio de Biomateriais, Inst. de Engenharia Biomedica (INEB), Rua do Campo Alegre, 823, 4150 Porto, Portugal; email: jdsantos@fe.up.ptChemicals/CAS: Serum Albumin, Bovine; Silicon Compounds; silicon nitride, 12033-89-5References: Von Recum, A.F., (1999) Handbook of biomaterials evaluation: scientific, technical, and clinical testing of implant materials, 2nd. ed., , Hemisphere Pub;Davies, J.E., The importance and measurement of surface charge species in cell behaviour at the biomaterial interface (1998) Surface characterisation of biomaterials, 6, pp. 219-234. , Ratner, editor. Progress in Biomedical Engineering. Amsterdam: Elsevier; 
Lampin, M., Warocquier-Cl{\'e}rout, R., Legris, C., Degrange, M., Sigot-Luizard, M.F., Correlation between substratum roughness and wettability, cell adhesion, and cell migration (1997) J Biomed Mater Res, 36, pp. 99-108; 
Dewez, J.L., Schneider, Y.J., Rouxhet, P.G., Coupled influence of substratum hydrophilicity and surfactant on epithelial cell adhesion (1996) J Biomed Mater Res, 30, pp. 373-383; 
Hallab, N.J., Bundy, K., O{\textquoteright}Connor, R., Clark, R., Moses, R.L., Cell adhesion to biomaterials: Correlations between surface charge, surface roughness, adsorbed protein, and cell morphology (1995) J Long-Term Effects Med Implants, 3, pp. 209-231; 
Anselme, K., Osteoblast adhesion on biomaterials (2000) Biomaterials, 7, pp. 667-681; 
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Schrader, M.E., Young-Dupre Revisited (1995) Langmuir, 11, pp. 3585-3589; 
Nishizawa, K., Toriyama, M., Effects of the surface wettability and zeta potential of bioceramics on the adhesiveness of anchorage-dependent animal-cells (1993) J Ferment Bioeng, 6, pp. 435-437; 
Suzuki, T., Nishizawa, K., Yokogawa, Y., Kameyama, T., Time-dependent variation of the surface structure of bioceramics in tissue culture medium and the effect on adhesiveness of cells (1996) J Ferment Bioeng, 3, pp. 226-232; 
Parfitt, G.D., (1967) Principles of the colloidal state, , London: Royal Institute of Chemistry; 
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Vogler, E.A., Interfacial chemistry in biomaterials science (1993) Wettability, surfactant science series, 49, pp. 183-250. , Berg J.C., editor, Chapter 4; 
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Ferraz, M.P., Monteiro, F.J., Serro, A.P., Saramago, B., Gibson, I.R., Santos, J.D., Effect of chemical composition on hydrophobicity and zeta potential of plasma sprayed HA/CaO-P 2O 5 glass coatings (2001) Biomaterials, 22, pp. 3105-3112; 
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Haynes, C.A., Norde, W., Globular proteins at solid/liquid interfaces (1994) Colloids Surf B: Biointerfaces, 2, pp. 517-566
},
	month = {2002///},
	pages = {4123 - 4129},
	abstract = {Wettability and surface charge studies were performed on a novel Si                        3N
                        4-30wt\% bioglass biocomposite. Contact angle and surface tension variation with time were determined at 25{\textdegree}C, respectively, by the sessile and pendant drop techniques, for distinct testing liquids: water, diiodomethane, simulated body fluid (SBF) and bovine serum albumin (BSA) dissolved in SBF solution. This biocomposite revealed a hydrophilic character (θ=26.6{\textpm}2.0{\textdegree}) and a surface tension value (66.6mJm
},
	keywords = {3N, 4-bioglass composites, Adsorption, aqueous solution, article, Biocomposites, Biomaterials, body fluid, Body fluids, Bovinae, bovine serum albumin, cation, Cattle, ceramics, chemistry, conformation, Conformations, Contact angle, electrochemistry, enthalpy, entropy, glass, Glass ceramics, Hydrogen-Ion Concentration, hydrophilicity, liquid, methyl iodide, methylene iodide, pH, Physiological models, priority journal, Serum Albumin, Serum Albumin, Bovine, Si, Silicon compounds, silicon derivative, Silicon nitride, simulation, Support, Non-U.S. Gov{\textquoteright}t, Surface charge, Surface chemistry, Surface Properties, surface property, Surface tension, temperature, time, unclassified drug, Water, wettability, Wetting, Zeta potential},
	isbn = {01429612 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0035988674\&partnerID=40\&md5=25e46c5fc9e81d6c3655190ab01b33ea},
	author = {Amaral, M. and Lopes, M.A. and Santos, J.D. and Silva, R.F.}
}
@article {2551,
	title = {CaO-P                    2O
                    5 glass ceramics containing bioactive phases: crystallisation and in vitro bioactivity studies
},
	journal = {Key Engineering MaterialsKey Eng Mat},
	volume = {192-195},
	year = {2001},
	note = {Conference code: 57760Cited By (since 1996): 3Export Date: 21 November 2012Source: ScopusCODEN: KEMAELanguage of Original Document: EnglishCorrespondence Address: Zhang, Y.; Instituto de Engenharia Biomedica, (INEB), Porto, PortugalReferences: Hench, L.L., (1991) J. Am. Ceram. Soc., 74, p. 1487;Kokubo, T., (1993) An Introduction to Bioceramics, p. 75. , L.L. Hench and J.Wilson, Eds., World Scientific Singapore; 
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Zhang, Y., Santos, J.D., Journal of the European Ceramic Society, , In press
},
	month = {2001///},
	pages = {643 - 646},
	publisher = {Trans Tech Publ},
	address = {Bologna, Italy},
	abstract = {CaO-P                        2O
                        5 glass ceramics were prepared using a two-step heat treatment of nucleation and crystal growth using TiO
                        2 and Na
                        2O as nucleating agents. X-ray diffraction analysis demonstrated that bioactive and bioresorbable crystalline phases were precipitated in the microstructure, depending upon the relative content of the additives and of the CaO/P
                        2O
                        5 ratio of the glass. Ca
                        2P
                        2O
                        7 (β-DCP) was the main crystalline phase however β-Ca
                        3(PO
                        4)
                        2 (β-TCP), could also be formed by increasing the content of TiO
                        2 and the CaO/P
                        2O
                        5 ratio. Na and Ti-containing phases, CaTi
                        4(PO
                        4)
                        6, and/or NaTi
                        2(PO
                        4)
                        3, could also be assigned in the XRD spectra. In vitro testing in simulated body fluid (SBF) has proved the in vitro bioactivity of these glass ceramics with the formation of Ca-deficient apatite crystals, as demonstrated by Scanning Electron Microscopy (SEM) and X-ray photoelectron spectroscopy (XPS) analyses.
},
	keywords = {Bioactivity, Biomaterials, Ceramic materials, Crystal growth, Crystal microstructure, Crystalline materials, Crystalline phase, Crystallization, glass, Lime, Nucleating agents, Nucleation, Phosphates, Scanning electron microscopy, Simulated body fluid, X ray diffraction analysis, X ray photoelectron spectroscopy},
	isbn = {10139826 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0035154397\&partnerID=40\&md5=f2ba11b17e54efdc1e520c3dfaa6457e},
	author = {Zhang, Y. and Lopes, M.A. and Santos, J.D.}
}
@article {2540,
	title = {Comparative effects of nacre water-soluble matrix and dexamethasone on the alkaline phosphatase activity of MRC-5 fibroblasts},
	journal = {Journal of Biomedical Materials ResearchJ. Biomed. Mater. Res.},
	volume = {57},
	year = {2001},
	note = {Cited By (since 1996): 20Export Date: 21 November 2012Source: ScopusCODEN: JBMRBdoi: 10.1002/1097-4636(200111)57:2<306::AID-JBM1172>3.0.CO;2-HPubMed ID: 11484195Language of Original Document: EnglishCorrespondence Address: Lopez, E.; Lab. de Physiol. Gen. et Comparee, UMR CNRS 8572, Museum National d{\textquoteright}Histoire Naturelle, 7 rue Cuvier, 75231 Paris Cedex 05, France; email: lopez@mnhn.frChemicals/CAS: Alkaline Phosphatase, EC 3.1.3.1; BMP2 protein, human; Bmp2 protein, rat; bone morphogenetic protein 2; Bone Morphogenetic Proteins; Dexamethasone, 50-02-2; Glucocorticoids; Transforming Growth Factor betaReferences: Lopez, E., Vidal, B., Berland, S., Camprasse, S., Camprasse, G., Silve, C., Demonstration of the capacity of nacre to induce bone formation by human osteoblasts maintained in vitro (1992) Tissue Cell, 24, pp. 667-679;Lopez, E., Berland, S., Le Faou, A., Nacre, osteogenic and osteoinductive properties (1994) Bull Inst Oc{\'e}an Monaco, 14, pp. 49-57; 
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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 {2545,
	title = {Push-out testing and histological evaluation of glass reinforced hydroxyapatite composites implanted in the tibia of rabbits},
	journal = {Journal of Biomedical Materials ResearchJ. Biomed. Mater. Res.},
	volume = {54},
	year = {2001},
	note = {Cited By (since 1996): 40Export Date: 21 November 2012Source: ScopusCODEN: JBMRBdoi: 10.1002/1097-4636(20010315)54:4<463::AID-JBM10>3.0.CO;2-YPubMed ID: 11426590Language of Original Document: EnglishCorrespondence Address: Santos, J.D.; Laborat{\'o}rio de Biomateriais, INEB, Rua do Campo Alegre, 823, 4150-180 Porto, PortugalChemicals/CAS: Bone Substitutes; Composite Resins; Durapatite, 1306-06-5References: Hyakuna, K., Yamamuro, T., Kotoura, Y., Oka, M., Nakamura, T., Kitsugi, T., Kokubo, T., Kushitani, H., Surface reactions of calcium phosphate ceramics to various solutions (1990) J Biomed Mater Res, 24, pp. 471-488;Klein, C.P.A.T., Driessen, A.A., De Groot, K., Van der Hooff, A., Biodegradation behavior of various calcium phosphate materials in bone tissue (1983) J Biomed Mater Res, 17, pp. 769-784; 
Santos, J.D., Knowles, J.C., Reis, R.L., Monteiro, F.J., Hastings, G.W., Microstructural Characterization of Glass Reinforced Hydroxyapatite Composites (1994) Biomaterials, 15, pp. 5-10; 
Lopes, M.A., Santos, J.D., Monteiro, F.J., Knowles, J.C., Glass Reinforced Hydroxyapatite: A Comprehensive Study of the Effect of Glass Composition on the Crystallography of the Composite (1998) J Biomed Mater Res, 39, pp. 244-251; 
Lopes, M.A., Santos, J.D., Monteiro, F.J., 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., Saramago, B., Santos, J.D., Monteiro, F.J., Hydrophobicity, Surface Tension and Zeta Potential of Glass Reinforced Hydroxyapatite Composites (1999) J Biomed Mater Res, 45, pp. 370-375; 
Lopes, M.A., Knowles, J.C., Kuru, L., Santos, J.D., Monteiro, F.J., Olsen, I., Flow Cytometry for Assessing Biocompatibility (1998) J Biomed Mater Res, 41, pp. 649-656; 
Kokubo, T., Ito, S., Huang, Z.T., Hayashi, T., Sakka, S., CaP-rich layer formed on high-strength bioactive glass-ceramic A-W (1990) J Biomed Mater Res, 24, pp. 331-343; 
Cho, S.B., Nakanishi, K., Kokubo, T., Soga, N., Ohtsuki, C., Nakamura, T., Kitsugi, T., Yamamuro, T., Dependence of Apatite Formation on Silica Gel on Its Structure: Effect of Heat Treatment (1975) J Am Ceram Soc, 78, pp. 1769-1774; 
Neo, M., Kotani, S., Fujita, Y., Nakamura, T., Yamamuro, T., Bando, Y., Ohtsuki, C., Kokubo, T., Differences in ceramic-bone interface between surface-active ceramics and resorbable ceramics: A study by scanning and transmission electron microscopy (1992) J Biomed Mater Res, 26, pp. 255-267; 
Hamson, K.R., Toth, J.M., Stiehl, J.B., Lynch, K.L., Preliminary experience with a novel model assessing in vivo mechanical strength of bone grafts and substitute materials (1995) Calcif Tissue Int, 57, pp. 64-68; 
Hing, K.A., (1996) Assessment of porous hydroxyapatite for bone replacement, , London: University of London; 
Albrektsson, T., Johansson, C., Quantitative bone tissue reactions to various metallic materials with reference to the so-called osseointegration concept (1991), pp. 357-363. , Davies JE, editor. The bonebiomaterial interface. Toronto: University of Toronto PressProbster, L., Voigh, C.H., Fuhrman, G., Gross, U.M., Tensile and torsional shear strength of the bone implant interface of titanium implants in the rabbit (1994) J Mater Sci: Mater Med, 5, pp. 314-319; 
Kokubo, T., Kushitani, H., Ebisawa, Y., Kitsugi, T., Kotani, S., Oura, K., Yamamuro, T., Apatite formation on bioactive ceramics in body environment (1989), 1, pp. 157-162. , Oonishi H, Aoki H, Sawai K, editors. Bioceramics. Tokyo: Ishiyaku EuroAmerica, IncLeGeros, R.Z., (1991), pp. 4-45. , Meyers HM, editor. Calcium phosphates in oral biology and medicine. New York: KargerOhtsuki, C., Kokubo, T., Neo, M., Kotani, S., Yamamuro, T., Nakamura, T., Bando, Y., Bone-Bonding Mechanism of Sintered β-3CaO-P 2O 5 (1991) Phosphorus Research Bulletin, 1, pp. 191-196; 
Kotani, S., Fujita, Y., Kitsugi, T., Nakamura, T., Yamamuro, T., Ohtsuki, C., Kokubo, T., Bone bonding mechanism of β-tricalcium phosphate (1991) J Biomed Mater Res, 25, pp. 1303-1315; 
Lu, J.X., Gallur, A., Flautre, B., Anselme, K., Descamps, M., Thierry, B., Hardouin, P., Comparative study of tissue reactions to calcium phosphate ceramics among cancellous, cortical, and medullar bone site in rabbits (1998) J Biomed Mater Res, 42, pp. 357-367; 
Kitsugi, T., Nakamura, T., Oka, M., Senaha, Y., Goto, T., Bonebonding behavior of plasma-sprayed coatings of bioglass, AW-glass ceramic, and tricalcium phosphate on titanium alloy (1996) J Biomed Mater Res, 30, pp. 261-269; 
Kitsugi, T., Yamamuro, T., Nakamura, T., Kotani, S., Kokubo, T., Takeuchi, H., Four calcium phosphate ceramics as bone substitutes for non-weight-bearing (1993) Biomaterials, 14, pp. 216-224; 
De Lauge, G.L., De Putter, C., De Wijs, F.L.J.A., Histological and ultrastructural appearance of the hydroxy apatite-bone interface (1990) J Biomed Mater Res, 24, pp. 829-845; 
Yamada, S., Nakamura, T., Kokubo, T., Oka, M., Yamamuro, T., Degradation of the apatite layer formed on bioactive ceramics and the underlying ceramic surface by osteoclasts in a culture system (1994) Cells and Materials, 4, pp. 347-356; 
Brunski, J.B., Influence of biomechanical factors at the bone-biomaterial interface (1990), pp. 391-405. , Davies JE, editor. The bone-biomaterial interface. Toronto: University of Toronto PressDhert, J.A., Thomsen, P., Blomgren, A.K., Esposito, M., Ericson, L.E., Verbout, A.J., Integration of press-fit implants in cortical bone: A study on interface kInetics (1998) J Biomed Mater Res, 41, pp. 574-583; 
Gao, T.J., Lindholm, T.S., Kommonen, B., Ragni, P., Paronzini, A., Lindholm, T.C., Microscopic evaluation of bone-implant contact beween HA, bioactive glass and tricalcium phosphate implanted in sheep diaphyseal defects (1995) Biomaterials, 16, pp. 1175-1179; 
Oonishi, H., Hench, L.L., Wilson, J., Sugihara, F., Tsuji, E., Kushitani, S., Iwaki, H., Comparative bone growth behavior in granules of bioceramic materials of various sizes (1999) J Biomed Mater Res, 44, pp. 31-43; 
Marie, P.J., De Vernejoul, M.C., Lomri, A., Stimulation of bone formation in osteoporosis patients treated with fluoride associated with increased DNA synthesis by osteoblast cells in vitro (1992) J Bone Miner Res, 7, pp. 103-113; 
Rodan, G.A., Introduction to bone biology (1992) Bone, 13, pp. S3-S6
},
	month = {2001///},
	pages = {463 - 469},
	publisher = {John Wiley \& Sons Inc},
	abstract = {In vitro and in vivo bioactivity studies were performed to assess the biocompatibility of CaO-P                        2O
                        5 glass-reinforced hydroxyapatite (GR-HA) composites. The ability to form an apatite layer by soaking in simulated body fluid (SBF) was examined and surfaces were characterized using FTIR reflection and thin-film X-ray diffraction analyses. Qualitative histology, histomorphometric measurements, and push-out testing were performed in a rabbit model for characterizing bone/implant bonding. Under the in vitro conditions using SBF, an apatite layer could not be formed on GR-HA composites within 8 weeks. Results of push-out testing showed bonding between the composites and bone, ranging from 130-145 N after 2 weeks of implantation. After the longest implantation period, 16 weeks, the GR-HA composite prepared with the higher content of CaO-P
                        2O
                        5 glass showed the highest bonding force, 606 {\textpm} 45 N, compared to 459 {\textpm} 30 N for sintered HA. Development of immature bone and modifications in the turnover of a more mature bone on the surface of GR-HA composites were similar to those on sintered HA. {\textcopyright} 2000 John Wiley \&amp; Sons, Inc.
In vitro and in vivo bioactivity studies were performed to assess the biocompatibility of CaO-P
                        2O
                        5 glass-reinforced hydroxyapatite (GR-HA) composites. The ability to form an apatite layer by soaking in simulated body fluid (SBF) was examined and surfaces were characterized using FTIR reflection and thin-film X-ray diffraction analyses. Qualitative histology, histomorphometric measurements, and push-out testing were performed in a rabbit model for characterizing bone/implant bonding. Under the in vitro conditions using SBF, an apatite layer could not be formed on GR-HA composites within 8 weeks. Results of push-out testing showed bonding between the composites and bone, ranging from 130-145 N after 2 weeks of implantation. After the longest implantation period, 16 weeks, the GR-HA composite prepared with the higher content of CaO-P
                        2O
                        5 glass showed the highest bonding force, 606 {\textpm} 45 N, compared to 459 {\textpm} 30 N for sintered HA. Development of immature bone and modifications in the turnover of a more mature bone on the surface of GR-HA composites were similar to those on sintered HA. {\textcopyright} 2000 John Wiley \&amp; Sons, Inc.
},
	keywords = {animal experiment, animal tissue, Animals, article, Biocompatibility, Body fluids, Bonding, Bone, Bone Substitutes, bone turnover, Ceramic materials, Composite Resins, Durapatite, Fiber reinforced materials, Fourier transform infrared spectroscopy, glass, Glass reinforced hydroxyapatite composites, Glass-reinforced hydroxyapatite composites, Histological studies, histology, Histomorphometric measurements, hydroxyapatite, implant, implantation, Implants (surgical), In vitro bioactivity, In vivo evaluation, Interfaces (materials), male, nonhuman, orthopedic equipment, ossification, Prosthesis Implantation, Push out testing, Push-out testing, rabbit, Rabbits, Spectroscopy, Fourier Transform Infrared, Stress, Mechanical, Surgical equipment, tibia, Time Factors, X ray diffraction, X ray diffraction analysis},
	isbn = {00219304 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0035869784\&partnerID=40\&md5=9464ca5ca74972a99d8092171252e0b3},
	author = {Lopes, M.A. and Santos, J.D. and Monteiro, F.J. and Ohtsuki, C. and Osaka, A. and Kaneko, S. and Inoue, H.}
}
@article {2549,
	title = {Silicon nitride - bioglass composite for biomedical applications},
	journal = {Key Engineering MaterialsKey Eng Mat},
	volume = {192-195},
	year = {2001},
	note = {Conference code: 57760Cited By (since 1996): 5Export Date: 21 November 2012Source: ScopusCODEN: KEMAELanguage of Original Document: EnglishCorrespondence Address: Santos, J.D.; Universidade do Porto, Porto, PortugalReferences: Hench, L.L., Wilson, J., (1993) An Introduction to Bioceramics;(1995) Engineering Materials Handbook, Ceramics and Glasses, Asm International, 4, pp. 812-820; 
Fishman, G., Clare, A., Hench, L.L., (1995) Materials and Applications, 48; 
Niihara, K., Morena, R., Hasselman, D.P., (1982) J. Mater. Sci., 1, pp. 13-16; 
Hench, L.L., (1998) Bioceramics, J. Am. Ceram. Soc., 81 (7), pp. 1705-1728; 
Landis, W.J., Martin, J.R., (1984) J. Vac. Sci. Technol., A2, p. 1108
},
	month = {2001///},
	pages = {589 - 592},
	publisher = {Trans Tech Publ},
	address = {Bologna, Italy},
	abstract = {This study aimed at preparing novel highly toughened bioactive ceramic composite composed of Si                        3N
                        4 matrix and Bioglass using a hot pressing technique. Densification rate, hardness and fracture toughness of this novel composite were assessed as well as in vitro bioactivity using a simulated body fluid (SBF). A fracture toughness of 5.2{\textpm}0.3 MPa.m.
                        1/2 was achieved for fully densified samples, which complies with K
                        1c value reported for cortical bone. This novel composite, which can be used in high load medical applications, seems to overcome the drawback of low fracture toughness presented by most currently available bioactive ceramics.
},
	keywords = {Bioactive ceramic composite, Bioglass, Biomaterials, Body fluids, Bone, Ceramic matrix composites, cortical bone, Densification, Fracture toughness, Glass ceramics, Hot pressing, Medical applications, Silicon nitride, Simulated body fluid},
	isbn = {10139826 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0035147698\&partnerID=40\&md5=3920a80d3e54d72e2efece615e5d55f3},
	author = {Santos, J.D. and Amaral, M. and Oliveira, S.M. and Lopes, M.A. and Silva, R.F.}
}
@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 {2558,
	title = {Direct and indirect effects of P                    2O
                    5 glass reinforced-hydroxyapatite composites on the growth and function of osteoblast-like cells
},
	journal = {BiomaterialsBiomaterials},
	volume = {21},
	year = {2000},
	note = {Cited By (since 1996): 18Export Date: 21 November 2012Source: ScopusCODEN: BIMADdoi: 10.1016/S0142-9612(00)00007-7PubMed ID: 10817269Language of Original Document: EnglishCorrespondence Address: Olsen, I.; Department of Periodontology, Eastman Dental Institute, University College London, 256 Gray{\textquoteright}s Inn Road, London WC1X 8LD, United Kingdom; email: iolsen@eastman.ucl.ac.ukChemicals/CAS: Antigens; Biocompatible Materials; DNA, 9007-49-2; Hydroxyapatites; PhosphatesReferences: Kirkpatrick, C.J., A critical view of current and proposed methodologies for biocompatibility testing: Cytoxicity in vitro (1992) Regulatory Affairs, 4, pp. 13-32;Hanson, S., Lalor, P.A., Niemi, S.M., Ratner, B.D., (1996) Biomaterials Science. An Introduction to Materials in Medicine, pp. 215-242. , B.D. Ratner, \& A.S. Hoffman. Basel: Karger; 
Bou-Gharios, G., Osman, J., Atherton, A., Monoghan, P., Vancheeswaran, R., Black, C., Olsen, I., Expression of ectopeptidaes in scleroderma (1995) Ann Rheum Dis, 54, pp. 111-116; 
Goseki, T., Shimizu, N., Iwasawa, T., Takiguchi, H., Abiko, Y., Effects of in vitro cellular aging on alkaline phosphatase, cathepsin activities and collagen secretion of human periodontal ligament-derived cells (1996) Mech Age Dev, 91, pp. 1761-1783; 
Parkar, M.H., Kuru, L., O{\textquoteright}Hare, M., Newman, H.N., Hughes, F., Olsen, I., Retroviral transduction of periodontal cells with a temperature-sensitive SV40 large T antigen (1999) Archs Oral Biol, 44, pp. 823-834; 
Simon, L.V., Beauchamp, J.R., O{\textquoteright}Hare, M., Olsen, I., Establishment of long-term myogenic cultures from patients with Duchenne muscular dystrophy by retroviral transduction of a temperature-sensitive SV40 large T-antigen construct (1996) Exp Cell Res, 224, pp. 264-271; 
Clover, J., Gowen, M., Are MG-63 and HOS TE 85 human osteosarcoma cell lines representative models of the osteoblastic phenotype (1994) Bone, 15, pp. 585-591; 
Santos, J.D., Knowles, J.C., Reis, R.L., Monteiro, F.J., Hastings, G.W., Microstructural characterisation of glass reinforced hydroxyapatite composites (1994) Biomaterials, 15, pp. 5-10; 
Di Silvio, L., A novel application of two biomaterial for the delivery of growth hormone and its effect on osteoblasts (1995) PhD Thesis, , Univ Lon: Univ Coll Lon Med Sch; 
Kapuscinski, J., Skoczylas, B., Simple and rapid fluorimetric method for DNA microassay (1977) Anal Biochem, 83, pp. 252-257; 
Nishizawa, K., Toriyama, M., Suzuki, T., Kawamoto, Y., Yokogawa, Y., Nagae, H., Effects of the surface wettability and zeta potential of bioceramics on the adhesiveness of anchorage-dependent animal cells (1993) J Ferm Bioengng, 75, pp. 435-437; 
Chesmel, K.D., Clark, C.C., Brighton, C.T., Black, J., Cellular response to chemical and morphologic aspects of biomaterial surfaces. II. The biosynthetic and migratory response of bone cell populations (1995) J Biomed Mater Res, 29, pp. 1101-1110; 
Harmand, M.F., Human cell culture and characterization of cell-biomaterial interface (1992) Clinical Materials, 11, pp. 145-150; 
Lincks, J., Boyan, B.D., Blanchard, C.R., Lohmann, C.H., Liu, Y., Cochran, D.L., Dean, D.D., Schawrtz, Z., Response of MG63 osteoblast-like cells to titanium and titanium alloy is dependent on surface roughness and composition (1998) Biomaterials, 19, pp. 2219-2232; 
Lopes, M.A., Santos, J.D., Monteiro, F.J., 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., Santos, J.D., Monteiro, F.J., Knowles, J.C., Glass reinforced hydroxyapatite: A comprehensive study of the effect of glass composition on the crystallography of the composite (1998) J Biomed Mater Res, 39, pp. 244-251; 
Lopes, M.A., Saramago, B., Santos, J.D., Monteiro, F.J., Hydrophobicity and zeta potencial of glass reinforced hydroxyapatite composites (1999) J Biomed Mater Res: Appl Biomater, 45, pp. 370-375; 
Hall, B.K., (1992) Fracture Repair and Regeneration, pp. 33-66. , Boca Raton, FL, USA: CRC Press; 
Legeros, R.Z., (1991) Calcium Phosphates in Oral Biology and Medicine, , Basel: Karger; 
Altankov, G., Groth, T., Fibronectin matrix formation and the biocompatibility of materials (1996) J Mater Sci: Mater Med, 7, pp. 425-429; 
Lopes, M.A., Knowles, J.C., Kuru, L., Santos, J.D., Monteiro, F.J., Olsen, I., Flow cytometry for assessing biocompatibility (1998) J Biomed Mater Res, 41, pp. 649-656; 
Lopes, M.A., Knowles, J.C., Hing, K., Santos, J.D., Monteiro, F.J., Olsen, I., Sedel, L., Rey, C., Biological evaluation of glass reinforced hydroxyapatite by flow cytometry (1997) Bioceramics, 10, pp. 575-578. , Paris, Oxford, UK: Elsevier; 
Kirkpatrick, C.J., Mittermayer, C., Theoretical and practical aspects of testing potential biomaterials in vitro (1990) J Mater Sci: Mater Med, 1, pp. 9-13; 
Marie, P.J., De Vernejoul, M.C., Lomri, A., Stimulation of bone formation in osteoporosis patients treated with fluoride associated with increased DNA synthesis by osteoblastic cells in vitro (1992) J Bone Miner Res, 7, pp. 103-113; 
Davies, J.E., In vitro modelling of the bone-implant interface (1996) Anat Rec, 245, pp. 426-445; 
Verrier, S., Bareille, R., Rovira, A., Dard, M., Amdee, J., Human osteoprogenitor responses to orthopaedic implant: Mechanism of cell attachment and cell adhesion (1996) J Mater Sci: Mater Med, 17, pp. 46-51; 
Sumner, H., Abraham, D., Bou-Gharios, G., Plater-Zyberk, C., Olsen, I., Simultaneous measurement of cell surface and intracellular antigens by multiple flow cytometry (1991) J Immun Meth, 136, pp. 259-267; 
Bou-Gharios, G., Osman, J., Black, C., Olsen, I., Excess matrix accumulation in Scleroderma is caused partly by differential regulation of stromelysin and TIMP-1 synthesis (1994) Clin Chim Acta, 231, pp. 69-78; 
Kuru, L., Parkar, M.H., Griffiths, G.S., Newman, H.N., Olsen, I., Flow cytometry analysis of functionally distinct gingival and periodontal ligament cells (1998) J Dent Res, 77, pp. 555-564; 
Ferraz, M.P., Knowles, J.C., Olsen, I., Monteiro, F.J., Santos, J.D., Flow cytometry analysis of the effects of glass on the biocompatibility of plasma-sprayed hydroxyapatite/CaO-P 2O 5 coatings (1999) J Biomed Mater Res, 47, pp. 603-611
},
	month = {2000///},
	pages = {1165 - 1172},
	publisher = {Elsevier Science Ltd},
	abstract = {Human osteoblast-like cells were plated on hydroxyapatite and P                        2O
                        5-glass reinforced hydroxyapatite composite discs. They were also cultured in the presence of media obtained by incubating the discs in the absence of cells. The effects of these direct and indirect interactions were examined by measuring cell proliferation and the expression of certain key extracellular matrix antigens. One composite was found to initially delay cell growth, while the extract of a different composite appeared to down-regulate DNA synthesis. Flow cytometry analysis showed that growth directly on the discs had little effect on collagen type I, but reduced fibronectin and osteocalcin levels. The extracts of the materials generally had less effect, although one extract obtained from the glass-reinforced hydroxyapatite significantly down-regulated fibronectin. These in vitro studies thus suggest that there were only few differences overall in the growth of the cells directly on the glass-reinforced compared with the hydroxyapatite discs and also only relatively small effects of the extracts on the cells. However, the flow cytometry results suggest that both the materials and the extracts may have a potentially important influence on connective tissue production, and that these effects are both material- and antigen-specific. Copyright (C) 2000 Elsevier Science Ltd.
Human osteoblast-like cells were plated on hydroxyapatite and P
                        2O
                        5-glass reinforced hydroxyapatite composite discs. They were also cultured in the presence of media obtained by incubating the discs in the absence of cells. The effects of these direct and indirect interactions were examined by measuring cell proliferation and the expression of certain key extracellular matrix antigens. One composite was found to initially delay cell growth, while the extract of a different composite appeared to down-regulate DNA synthesis. Flow cytometry analysis showed that growth directly on the discs had little effect on collagen type I, but reduced fibronectin and osteocalcin levels. The extracts of the materials generally had less effect, although one extract obtained from the glass-reinforced hydroxyapatite significantly down-regulated fibronectin. These in vitro studies thus suggest that there were only few differences overall in the growth of the cells directly on the glass-reinforced compared with the hydroxyapatite discs and also only relatively small effects of the extracts on the cells. However, the flow cytometry results suggest that both the materials and the extracts may have a potentially important influence on connective tissue production, and that these effects are both material- and antigen-specific.
},
	keywords = {Animal cell culture, antigen expression, Antigens, article, Biocompatibility, Biocompatible Materials, Biomaterials, Bone, Bone cells, cell antigen, Cell culture, Cell Division, cell function, cell growth, Cell Line, cell proliferation, cell structure, collagen type 1, controlled study, DNA, DNA Replication, DNA synthesis, extracellular matrix, Fibronectin, flow cytometry, glass, Glass fibers, Glass-reinforced hydroxyapatite, Growth kinetics, human, human cell, Humans, hydroxyapatite, Hydroxyapatites, immunofluorescence, In vitro, Microscopy, Electron, Scanning, osteoblast, Osteoblasts, osteocalcin, Phosphate minerals, Phosphates, phosphorus pentoxide, priority journal, Proteins, Reinforcement, Scanning electron microscopy},
	isbn = {01429612 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0034059787\&partnerID=40\&md5=898e049d86a10d2797dbd2aa59029fd6},
	author = {Lopes, M.A. and Knowles, J.C. and Santos, J.D. and Monteiro, F.J. and Olsen, I.}
}
@article {2560,
	title = {Microstructural dependence of Young{\textquoteright}s and shear moduli of P                    2O
                    5 glass reinforced hydroxyapatite for biomedical applications
},
	journal = {BiomaterialsBiomaterials},
	volume = {21},
	year = {2000},
	note = {Cited By (since 1996): 32Export Date: 21 November 2012Source: ScopusCODEN: BIMADdoi: 10.1016/S0142-9612(99)00248-3PubMed ID: 10711972Language of Original Document: EnglishCorrespondence Address: Lopes, M.A.; INEB Inst. de Engenharia Biomedica, Laboratorio de Biomaterials, Rua do Campo Alegre 823, 4150 Porto, PortugalChemicals/CAS: Biocompatible Materials; Hydroxyapatites; PhosphatesReferences: Burstein, A., Wright, T.M., (1994) Fundamentals of Orthopaedic Biomechanics, , Lippincott: Williams \& Wilkins;Carter, D.R., Giori, N.J., Effect of mechanical stresses on tissue differentiation in the bony implant bed (1991) In the Bone-material Interface, pp. 367-379. , J.E. Davies. Toronto: University of Toronto Press; 
(1995) E - Advanced Technical Ceramics, (PART 2). , European prestandard, ref. no. ENV 843-2:; 
Schreiber, E., Anderson, O.L., Soga, N., (1989) Elastic Constant and Their Measurements, , New York: McGraw-Hill; 
Santos, J.D., Knowles, J.C., Reis, R.L., Monteiro, F.J., Hastings, G.W., Microstructural characterisation of glass reinforced hydroxyapatite composites (1994) Biomaterials, 15, pp. 5-10; 
Knowles, J.C., Talal, S., Santos, J.D., Sintering effects in a glass reinforced hydroxyapatite (1996) Biomaterials, 17, pp. 1437-1442; 
Knowles, J.C., Santos, J.D., Monteiro, F.J., Olsen, I., Flow cytometry for assessing biocompatibility (1998) J Biomed Mater Res, 41, pp. 649-656; 
Lopes, M.A., Knowles, J.C., Santos, J.D., Monteiro, F.J., Olsen, I., Biological evaluation of glass reinforced hydroxyapatite by flow cytometry (1998) Bioceramics, 10, pp. 575-578; 
Rice, R.W., Microstructure dependence of mechanical behaviour (1977) Treatise on Materials Science and Technology, 11, pp. 200-382. , MacCrone R.K. New York: Academic Press; 
Lopes, M.A., Santos, J.D., Monteiro, F.J., Knowles, J.C., Glass reinforced hydroxyapatite: A comprehensive study of the effect of glass composition on the crystallography of the composite (1998) J Biomed Mater Res, 39, pp. 244-251; 
Murtage, B., (1981) Advanced Linear Programming, , New York: McGraw-Hill; 
Ch{\'a}tal, V., (1990) Linear Programming, , New York: W. H. Freeman; 
Tampieri, A., Celotti, G., Szontagh, F., Landi, E., Sintering and characterisation of hydroxyapatite and tricalcium phosphates with control of their strength and phase porosity (1997) J Mater Sci, 8, pp. 29-37; 
Knowles, J.K., Development of hydroxyapatite with enhanced mechanical properties: Effect of high glass additions on mechanical properties and phase stability of sintered hydroxyapatite (1994) Br Ceram Trans, 93, pp. 100-103; 
Aoki, H., (1991) Science and Medical Applications of Hydroxyapatite, , Japanese Association of Apatite Science. Tokyo: Takayama Press System Center Co. Inc; 
Sax, M., Zografou, C., Telle, R., Kalawrytimos, G., Properties of sintered apatite ceramics (1995) Ceramic Processing Science and Technology, Ceramic Transactions, 51, pp. 701-705. , In: Hausner H, editor; 
Katz, J.L., Akers, A.S., Germiller, J.A., Obremski, S.M., Singh, S., The elastic properties of apatites and tricalcium phosphates-calcite mixtures (1989) Bioceramics, 1, pp. 86-91; 
Dewith, G., Vandijk, J.A., Hattu, N., Prijs, K., Preparation, microstructure and mechanical properties of dense polycrystalline hydroxyapatite (1981) J Mater Sci, 16, pp. 1592-1598; 
Akao, M., Aoki, H., Kato, K., Mechanical properties of sintered hydroxyapatite for prosthetic applications (1981) J Mater Sci, 16, pp. 809-812
},
	month = {2000///},
	pages = {749 - 754},
	publisher = {Elsevier Science Ltd},
	abstract = {P                        2O
                        5 glass reinforced hydroxyapatite composite materials were prepared through a liquid-phase sintering process. Secondary phases, β- and α- tricalcium phosphate (β-TCP and α-TCP), were formed in the microstructure of the composites, due to the reaction between the liquid glassy phase and the hydroxyapatite matrix. The dynamic Young{\textquoteright}s modulus (E) and shear modulus (G) of these composites were determined using an impulse excitation method. By applying the Duckworth-Knudsen equation, the elastic property results were correlated with the relative proportion of β-TCP and α-TCP phases and with the porosity percentage present in the microstructure. Glass reinforced hydroxyapatite composites showed lower Young{\textquoteright}s and shear moduli than unmodified hydroxyapatite, mainly due to presence of β-TCP phase. The Duckworth-Knudsen model demonstrated an exponential dependence of E and G modulus with porosity and mathematical equations were derived for composite materials with porosity correction factors (b) of 4.04 and 4.11, respectively, indicating that porosity largely decreased both E and G moduli. (C) 2000 Elsevier Science Ltd.
                        2O
                        5 glass reinforced hydroxyapatite composite materials were prepared through a liquid-phase sintering process. Secondary phases, β- and α-tricalcium phosphates (β-TCP and α-TCP), were formed in the microstructure of the composites, due to the reaction between the liquid glassy phase and the hydroxyapatite matrix. The dynamic Young{\textquoteright}s modulus (E) and shear modulus (G) of these composites were determined using an impulse excitation method. By applying the Duckworth-Knudsen equation, the elastic property results were correlated with the relative proportion of β-TCP and α-TCP phases and with the porosity percentage present in the microstructure. Glass reinforced hydroxyapatite composites showed lower Young{\textquoteright}s and shear moduli than unmodified hydroxyapatite, mainly due to the presence of β-TCP phase. The Duckworth-Knudsen model demonstrated an exponential dependence of E and G modulus with porosity and mathematical equations were derived for composite materials with porosity correction factors (b) of 4.04 and 4.11, respectively, indicating that porosity largely decreased both E and G moduli.
},
	keywords = {article, Biocompatible Materials, Ceramic matrix composites, Chemical analysis, chemical composition, composite graft, Duckworth-Knudsen model, Elastic moduli, Elasticity, glass, hydroxyapatite, Hydroxyapatite glass composites, Hydroxyapatites, Implants (surgical), Mathematical models, Microstructure, Molecular Structure, Phosphate minerals, Phosphates, porosity, priority journal, Shear modulus, shear stress, young modulus, Young{\textquoteright}s modulus},
	isbn = {01429612 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0033975337\&partnerID=40\&md5=3822598d9be6e02a2a07e3465efe1ab6},
	author = {Lopes, M.A. and Silva, R.F. and Monteiro, F.J. and Santos, J.D.}
}
@article {2556,
	title = {Structural insights of glass-reinforced hydroxyapatite composites by Rietveld refinement},
	journal = {BiomaterialsBiomaterials},
	volume = {21},
	year = {2000},
	note = {Cited By (since 1996): 14Export Date: 21 November 2012Source: ScopusCODEN: BIMADdoi: 10.1016/S0142-9612(00)00068-5PubMed ID: 10919694Language of Original Document: EnglishCorrespondence Address: Santos, J.D.; Instituto Engenharia Biomedica, Laboratorio de Biomateriais, Rua do Campo Alegre 823, 4150-180 Porto, Portugal; email: jdsantos@alf.fe.up.ptChemicals/CAS: beta-tricalcium phosphate; Biocompatible Materials; Calcium Phosphates; Hydroxyapatites; Magnesium, 7439-95-4; Trace Elements; tricalcium phosphate, 7758-87-4References: Elliot, J.C., Structure and chemistry of the apatites and other calcium orthophosphates (1994) Studies in Inorganic Chemistry, 18. , Amsterdam: Elsevier Science;Okazaki, M., Sato, M., Computer graphics of hydroxyapatite and β -tricalcium phosphate (1990) Biomaterials, 11, pp. 573-578; 
Hench, L.L., Wilson, J., An introduction to bioceramics (1993) Advanced Series in Ceramics, 1, pp. 139-180. , editors. Singapore: World Scientific; 
Santos, J.D., Knowles, J.C., Reis, R.L., Monteiro, F.J., Hastings, G.W., Microstructural characterisation of glass-reinforced hydroxyapatite composites (1994) Biomaterials, 15 (1), pp. 5-10; 
Lopes, M.A., Santos, J.D., Monteiro, F.J., Knowles, J.C., Glass-reinforced hydroxyapatite: A comprehensive study of the effect of glass composition on the crystallography of the composite (1998) J Biomed Mater Res, 39 (2), pp. 244-251; 
Lopes, M.A., Santos, J.D., Monteiro, F.J., Serro, A.P., Saramago, B., Hydrophobicity, surface tension, and zeta potential of glass-reinforced hydroxyapatite composites (1999) J Biomed Mater Res, 45, pp. 370-375; 
Lopes, M.A., Knowles, J.C., Kuru, L., Santos, J.D., Monteiro, F.J., Olsen, I., Flow cytometry for assessing biocompatibility (1998) J Biomed Mater Res, 41, pp. 649-656; 
Li, P., (1993) In Vitro and in Vivo Calcium Phosphate Induction on Gel Oxides, , PhD thesis, Leiden, Offsetdrukkerij Haveka B.V. ed; 
Hagen, A.R., Structural features of biologically involved phosphates (1970) Acta Odontol Scand, 58, pp. 149-173; 
Narasaraju, T.S.B., Phebe, D.E., Review: Some physicochemical aspects of hydroxylapatite (1996) J Mater Sci, 31, pp. 1-21; 
Kay, M.I., Young, R.A., Posner, A.S., The crystal structure of hydroxyapatite (1964) Nature, 204, pp. 1050-1052; 
Montel, G., Bonel, G., Heughebaert, J.C., Trombe, J.C., Rey, C., New concepts in the composition, crystallisation and growth of the mineral component of calcified tissues (1981) J Crystal Growth, 53, pp. 74-99; 
Fanovich, M.A., Castro, M.S., Porto L{\'o}pez, J.M., Analysis of the microstructural evolution in hydroxyapatite ceramics by electrical characterisation (1999) Ceramics Int, 25, pp. 517-522; 
Bigi, A., Falini, G., Foresti, E., Gazzano, M., Ripamonti, A., Roveri, N., Rietveld structure refinements of calcium hydroxyapatite containing magnesium (1996) Acta Crystallogr, 52, pp. 87-92; 
Okazaki, M., Sato, M., Takahashi, J., Space-cutting model of hydroxyapatite (1995) Biomaterials, 16, pp. 45-49; 
Ravalgloli, A., Krajewski, A., (1992) Bioceramics, pp. 16-59. , London: Chapman \& Hall; 
Okazaki, M., Takahashi, J., Kimura, H., Unstable behavior of magnesium-containing hydroxyapatites (1986) Caries Res, 20, pp. 324-331; 
Kotani, S., Fijita, Y., Kitsugi, T., Nakamura, T., Yamamuro, T., Ohtsuki, C., Kokubo, T., Bone bonding mechanism of β -tricalcium phosphate (1991) J Biomed Mater Res, 25, pp. 1303-1315; 
Eanes, E.D., Thermochemical studies on amorphous calcium phosphate (1970) Calcif Tiss Res, 5, pp. 133-145; 
De Groot, K., Klien, P.A.T., Wolke, J.G.C., De Blieck-Hogervorst, J.M.A., Chemistry of calcium phosphate bioceramics (1990) Handbook of Bioactive Ceramics, 2, pp. 3-16. , T. Yamamuro, L.L. Hench, Wilson J. Boca Raton, FL: CRC Press; 
Legeros, R.Z., Calcium phosphates in oral biology and medicine (1991) Monographs in Oral Science, 15, pp. 87-107. , New York: Karger
},
	month = {2000///},
	pages = {1905 - 1910},
	publisher = {Elsevier Science Ltd},
	abstract = {Phase transformations and interstitial and/or substitution of trace elements during the liquid-phase sintering process of P                        2O
                        5-CaO-MgO glass-reinforced hydroxyapatite (GR-HA) composites were examined by X-ray diffraction and Rietveld analyses. Using the Rietveld method for structure refinement, changes in the lattice parameters of the two main phases of the composites, hydroxyapatite (HA) and β-tricalcium phosphate (β-TCP), as well as changes in several bond lengths and in the occupancy of the hydroxyl oxygen site in the HA phase structure were assessed. The glasses gave rise to formation of between approximately 45 and 50\% of β-TCP, with evidence for the Mg
                        2+ enhancing the formation of β-TCP. Between 1300 and 1350{\textdegree}C, the β-TCP inverts to α-TCP, without further decomposition of the residual HA. The glasses showed evidence for stabilisation of the hydroxyl group located in the hydroxyl channels. This is supported by measurements of the hydroxyl channel radius (R(c)), the Ca
                        2-OH bond length and the hydroxyl oxygen occupancy (O(occ)). Results showed that the Mg
                        2+ containing glasses induced the β-TCP phase formation in the structure of GR-HA composites and retarded the β-TCP into α-TCP transformation at higher temperatures. The chemical composition of the P
                        2O
                        5 glasses also induces modifications in the lattice parameters of the crystallographic phases present in the microstructure of the composites. This suggests some substitution of Mg
                        2+-for-Ca
                        2+ in the β-TCP structure during the liquid-phase sintering process. Copyright (C) 2000 Elsevier Science Ltd.
Phase transformations and interstitial and/or substitution of trace elements during the liquid-phase sintering process of P
                        2O
                        5-CaO-MgO glass-reinforced hydroxyapatite (GR-HA) composites were examined by X-ray diffraction and Rietveld analyses. Using the Rietveld method for structure refinement, changes in the lattice parameters of the two main phases of the composites, hydroxyapatite (HA) and β-tricalcium phosphate (β-TCP), as well as changes in several bond lengths and in the occupancy of the hydroxyl oxygen site in the HA phase structure were assessed. The glasses gave rise to formation of between approximately 45 and 50\% of β-TCP, with evidence for the Mg
                        2+ enhancing the formation of β-TCP. Between 1300 and 1350 {\textdegree}C, the β-TCP inverts to α-TCP, without further decomposition of the residual HA. The glasses showed evidence for stabilization of the hydroxyl group located in the hydroxyl channels. This is supported by measurements of the hydroxyl channel radius (R
                        c), the Ca
                        2-OH bond length and the hydroxyl oxygen occupancy (O
                        occ). Results showed that the Mg
                        2+ containing glasses induced the β-TCP phase formation in the structure of GR-HA composites and retarded the β-TCP into α-TCP transformation at higher temperatures. The chemical composition of the P
                        2O
                        5 glasses also induces modifications in the lattice parameters of the crystallographic phases present in the microstructure of the composites. This suggests some substitution of Mg
                        2+-for-Ca
                        2+ in the β-TCP structure during the liquid-phase sintering process.
},
	keywords = {article, Biocompatible Materials, Biomedical engineering, Calcium Compounds, calcium phosphate, Calcium phosphates, Chemical bonds, chemical composition, Composition effects, Crystal lattices, Crystal microstructure, crystal structure, Crystallization, decomposition, Fiber reinforced materials, glass, Glass fibers, Glass-reinforced hydroxyapatite, Glass-reinforced hydroxyapatite composites, hydroxyapatite, Hydroxyapatites, Implants (surgical), Liquid-phase sintering, Magnesium, Mg-apatites, Models, Molecular, phase transition, Phase transitions, Phosphate minerals, priority journal, Rietveld refinement, Rietveld refinement analysis, Sintering, spectacles, structure analysis, temperature, Thermodynamics, Trace Elements, Tricalcium phosphate, X ray analysis, X ray crystallography, β-TCP},
	isbn = {01429612 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0034046953\&partnerID=40\&md5=45db5eace3328b0cb2a8a048985ba619},
	author = {Lopes, M.A. and Knowles, J.C. and Santos, J.D.}
}
@article {2569,
	title = {Glass-reinforced hydroxyapatite composites: Fracture toughness and hardness dependence on microstructural characteristics},
	journal = {BiomaterialsBiomaterials},
	volume = {20},
	year = {1999},
	note = {Cited By (since 1996): 65Export Date: 21 November 2012Source: ScopusCODEN: BIMADdoi: 10.1016/S0142-9612(99)00112-XPubMed ID: 10535820Language of Original Document: EnglishCorrespondence Address: Santos, J.D.; Laboratorio de Biomateriais, Instituto de Engenharia Biomedica, INEB, Rua do Campo Alegre 823, 4150 Porto, PortugalChemicals/CAS: alpha-tricalcium phosphate; Biocompatible Materials; calcium phosphate, 10103-46-5; Calcium Phosphates; Composite Resins; dicalcium phosphate anhydrous, 7757-93-9; Durapatite, 1306-06-5; monocalcium phosphate; tetracalcium phosphateReferences: Akao, M., Aoki, H., Kato, K., Mechanical properties of sintered hydroxyapatite for prosthetic applications (1981) J Mater Sci, 16, pp. 809-812;Martin, R.I., Brown, P.W., Mechanical properties of hydroxyapatite formed at physiological temperature (1995) J Mater Sci Mater Med, 6, pp. 138-143; 
Aoki, H., (1994) Medical Applications of Hydroxyapatite, pp. 90-173. , Tokyo, Missouri, USA: Ishiyaku EuroAmerica Inc; 
Yamamuro, T., Hench, L., Wilson, J., Calcium phosphate and hydroxyapatite ceramics (1990) In: Handbook of Bioactive Ceramics, 2, pp. 273-335. , editors. Florida: CRC Press Inc; 
Cao, W., Hench, L.L., Bioactive materials (1996) Ceramics Int, 22, pp. 493-507; 
Davidge, R.W., (1979) Mechanical Behaviour of Ceramics, , Cambridge: Cambridge University Press; 
Orange, G., Liang, K.M., Crack resistance and fracture toughness of alumina and zirconia ceramics: comparisons of notched-beam and indent techniques (1988) Science of Ceramics, 14, pp. 709-714. , Amsterdam: Elsevier; 
Niihara, K., Morena, R., Hasselman, D.P.H., Evaluation of K IC of brittle solids by the indentation method with low crack-to-indent ratios (1982) J Mater Sci Lett, 1, pp. 13-16; 
Evans, G., Fracture toughness: The role of indentation techniques (1979) Fracture Mechanics Applied to Brittle Materials ASTM STP 678, pp. 112-135. , S.W. Freiman. Blasksbaurg: American Society for Testing and Materials; 
Anstis, G.R., Chantikul, P., Lawn, B.R., Marshall, D.B., A critical evaluation of indentation techniques for measuring fracture toughness: I. Direct crack measurements (1981) J Am Ceram Soc, 64 (9), pp. 533-538; 
Chantikul, P., Anstis, G.R., Lawn, B.R., Marshall, D.B., A critical evaluation of indentation techniques for measuring fracture toughness: II. Strength method (1981) J Am Ceram Soc, 64 (9), pp. 539-543; 
Evans, G., Charles, E.A., Fracture toughness determinations by indentation (1976) J Am Ceram Soc, 59 (78), pp. 371-372; 
Marion, R.H., Use of indentation fracture to determine fracture toughness (1979) Fracture Mechanics Applied to Brittle Materials, ASTM STP 678, pp. 103-111. , S.W. Freiman. Blasksbaurg: American Society for Testing and Materials; 
Knowles, J.C., Talal, S., Santos, J.D., Sintering effects in a glass reinforced hydroxyapatite (1996) Biomaterials, 17, pp. 1437-1442; 
Lopes, M.A., Monteiro, F.J., Santos, J.D., Glass reinforced hydroxyapatite composites: Secondary phase proportions and densification effects on biaxial bending strength (1999) J Appl Biomater, , in press; 
Lopes, M.A., Knowles, J.C., Kuru, L., Santos, J.D., Monteiro, F.J., Flow cytometry for assessing biocompatibility (1998) J Biomed Mater Res, 4, pp. 649-656; 
Santos, D., Knowles, J.C., Reis, R.L., Monteiro, F.J., Hastings, G.W., Microstructural characterisation of glass reinforced hydroxyapatite composites (1994) Biomaterials, 15 (1), pp. 5-10; 
Lopes, M.A., Santos, J.D., Monteiro, F.J., Knowles, J.C., Glass reinforced hydroxyapatite: A comprehensive study of the effect of glass composition on the crystallography of the composite (1998) J Biomed Mater Res, 39 (2), pp. 244-251; 
Laugier, M.T., New formula for indentation toughness in ceramics (1987) J Mater Sci Lett, 6, pp. 355-356; 
Ampiro, R., (1958) Acta Anat, 3, p. 161; 
De With, G., Van Dijk, H.J.A., Hattu, N., Prijs, K., Preparation, microstructure and mechanical properties of dense polycrystalline hydroxyapatite (1981) J Mater Sci, 16, pp. 1592-1598; 
German, R.M., (1985) Liquid Phase Sintering, , Oxford: Plenum Press; 
Rice, R.W., Microstructure dependence of mechanical behaviour (1977) Treatise on Materials Science and Technology, 11. , MacCrone R.K. New York: Academic Press; 
Rice, R.W., Grain size and porosity dependence of ceramic fracture energy and toughness at 22{\textdegree}C (1996) J Mater Sci, 31, pp. 1969-1983; 
Lankford, J., Indentation microfracture in the Palmqvist crack regime: Implications for fracture toughness evaluation by the indentation method (1982) J Mater Sci Lett, 1, pp. 493-495; 
Li, Z., Ghosh, A.A., Kobayashi, A.S., Bradt, R.C., Indentation fracture toughness of sintered silicon carbide in the Palmqvist crack regime (1989) J Am Ceram Soc, 72 (6), pp. 904-911; 
Lawn, R., Marshall, D.B., Hardness, toughness and brittleness: An indentation analysis (1980) J Am Ceram Soc, 62 (78), pp. 347-350; 
Niihara, K., A fracture mechanics analysis of indentation-induced Palmqvist crack in ceramics (1983) J Mater Sci Lett, 2, pp. 221-223; 
Plannel, J.A., Vallet-Regi, M., Fernandez, E., Driessens, F.C.M., Fracture toughness evaluation of sintered hydroxyapatite (1994) Bioceramics 7, Proceedings of the Seventh International Symposium on Ceramics in Medicine, pp. 18-22. , In: Andersson OH, Yli-Urpo A, editors; 
Aoki, H., (1991) Science and Medical Applications of Hydroxyapatite, , Japanese Association of Apatite Science. Tokyo: Takayama Press System Center Co. Inc; 
Hauber, R.A., Anderson, R.M., Engineering properties of glass-matrix composites In: Ceramics and Glasses, Engineered Materials Handbook, pp. 858-869. , USA: ASM Publication; 
Barsoum, M., Mechanical properties: Fast fracture (1997) Fundamentals of Ceramics. Series in Materials Science and Engineering, pp. 391-439. , New York: McGraw-Hill; 
Slosarczyk, A., Bia Oskorski, J., Hardness and fracture toughness of dense calcium-phosphate based materials (1998) J Mater Sci Mater Med, 9, pp. 103-108
},
	month = {1999///},
	pages = {2085 - 2090},
	publisher = {Elsevier Science Ltd},
	abstract = {Fracture toughness and hardness properties of CaO-P                        2O
                        5 glass-reinforced hydroxyapatite composites have been assessed using indentation techniques and results calculated according to Laugier and Evans{\textquoteright} equations. Both properties showed to be dependent upon several microstructural characteristics, namely residual porosity and the percentage of secondary β and α tricalcium phosphate phases in the structure of the composites. Composites presented a Palmqvist-type indentation crack system, which is the specific crack system addressed by Laugier{\textquoteright}s approach. Fracture toughness determinations according to Evan{\textquoteright}s equation, which is a universal one and adapted to both median and Palmqvist crack systems, did not correlate well with Laugier determinations. Copyright (C) 1999 Elsevier Science Ltd.
Fracture toughness and hardness properties of CaO-P
                        2O
                        5 glass-reinforced hydroxyapatite composites have been assessed using indentation techniques and results calculated according to Laugier and Evans{\textquoteright} equations. Both properties showed to be dependent upon several microstructural characteristics, namely residual porosity and the percentage of secondary β and α tricalcium phosphate phases in the structure of the composites. Composites presented a Palmqvist-type indentation crack system, which is the specific crack system addressed by Laugier{\textquoteright}s approach. Fracture toughness determinations according to Evan{\textquoteright}s equation, which is a universal one and adapted to both median and Palmqvist crack systems, did not correlate well with Laugier determinations.
},
	keywords = {article, Biocompatible Materials, Biomaterials, calcium phosphate, Calcium phosphates, ceramics, Composite materials, Composite Resins, Cracks, Durapatite, Evan{\textquoteright}s equation, Fracture toughness, glass, hardness, hydroxyapatite, Hydroxyapatite-glass composites, Indentation techniques, Kinetics, Laugier equations, material state, mechanical stress, Microscopy, Electron, Scanning, Microstructure, Palmqvist crack systems, Phosphate minerals, porosity, priority journal, Stress, Mechanical, tensile strength, Tricalcium phosphate},
	isbn = {01429612 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0033231746\&partnerID=40\&md5=55066a0fcfb28ee10321c5820371f75a},
	author = {Lopes, M.A. and Monteiro, F.J. and Santos, J.D.}
}
@article {2572,
	title = {Glass-reinforced hydroxyapatite composites: Secondary phase proportions and densification effects on biaxial bending strength},
	journal = {Journal of Biomedical Materials ResearchJ. Biomed. Mater. Res.},
	volume = {48},
	year = {1999},
	note = {Cited By (since 1996): 28Export Date: 21 November 2012Source: ScopusCODEN: JBMRBdoi: 10.1002/(SICI)1097-4636(1999)48:5<734::AID-JBM20>3.0.CO;2-2PubMed ID: 10490690Language of Original Document: EnglishCorrespondence Address: Santos, J.D.; INEB-Instituto Engenharia Biomedica, Laboratorio de Biomateriais, Rua do Campo Alegre, 823, 4150 Porto, PortugalChemicals/CAS: alpha-tricalcium phosphate; Biocompatible Materials; calcium phosphate, 10103-46-5; Calcium Phosphates; dicalcium phosphate anhydrous, 7757-93-9; Hydroxyapatites; monocalcium phosphate; tetracalcium phosphateReferences: Yamamuro, Y., Hench, L.L., Wilson, J., (1990) CRC Handbook of Bioactive Ceramics, , Boca Raton, FL: CRC;Rice, R.W., Microstructure dependence of mechanical behaviour (1977) Treatise on Materials Science and Technology, 11. , MacCrone RK, editor. New York: Academic; 
Rice, R.W., Grain size and porosity dependence of ceramic fracture energy and toughness at 22{\textdegree}C (1996) J Mat Sci, 31, pp. 1969-1983; 
Santos, J.D., Knowles, J.C., Reis, R.L., Monteiro, F.J., Hastings, G.W., Microstructural characterisation of glass reinforced hydroxyapatite composites (1994) Biomaterials, 15, pp. 5-10; 
Lopes, M.A., Knowles, J.C., Santos, J.D., Monteiro, F.J., Olsen, I., Flow cytometry for assessing biocompatibility (1998) J Biomed Mater Res, 41, pp. 649-656; 
Wayne, S.F., Buljan, S.T., Microstructure and wear resistance of silicon nitride composites (1994) Friction and Wear of Ceramics, p. 261. , Jahanmir S, editor. New York: Marcel Dekker; 
Kaysser, W.A., Sprissler, M., Handwerker, C.A., Blendell, J.E., Effect of liquid phase on the morphology of grain growth of alumina (1987) J Am Ceram Soc, 70, pp. 339-343; 
Lopes, M.A., Santos, J.D., Monteiro, F.J., Knowles, J.C., Glass reinforced hydroxyapatite: A comprehensive study of the effect of glass composition on the crystallography of the composite (1998) J Biomed Mater Res, 39, pp. 244-251; 
Soltesz, U., Ritcher, H., Kienzler, R., The concentric-ring test and its applications for determining the surface strength of ceramics (1987) High Tech Ceram, pp. 149-159. , Amsterdam: Elsevier; 
Murtage, B., (1981) Advance Linear Programming, , New York: McGraw-Hill; 
Cha{\textquoteright}tal, V., (1990) Linear Programming, , New York: Freeman; 
Davidge, R.W., (1986) Mechanical Behaviour of Ceramics, , Cambridge: Cambridge Univ Press; 
German, R.M., (1985) Liquid Phase Sintering, , New York: Plenum; 
Akao, M., Aoki, H., Kato, K., Mechanical properties of sintered hydroxyapatite for prosthetic applications (1981) J Mater Sci, 16, pp. 809-812; 
Fanovich, M.A., Lopes, J.M.P., Influence of temperature and additives on the microstructure and sintering behaviour of hydroxyapatites with different Ca/P ratios (1998) J Mat Sci Mat Med, 9, pp. 53-60; 
Jarcho, M., Bolen, C.H., Bobik, J., Kay, J.F., Doremus, R.H., Hydroxyapatite synthesis and characterisation in dense polycrystalline form (1976) J Mat Sci, 11, pp. 2027-2035; 
Van Landuyt, P., Li, F., Keustermans, J.P., Streydio, J.M., Delnnay, F., Munting, E., The influence of high sintering temperatures on the mechanical properties of hydroxyapatite (1995) J Mat Sci Mat Med, 6, pp. 8-13; 
Aoki, H., (1991) Science and Medical Applications of Hydroxyapatite, , Japanese Association of Apatite Layer; 
Chawla, K.K., (1993) Ceramic Matrix Composites, , London, UK: Chapman Hall; 
Barsoum, M., Fundamentals of Ceramics, , New York: McGraw-Hill; 1997
},
	month = {1999///},
	pages = {734 - 740},
	publisher = {John Wiley \& Sons Inc},
	abstract = {CaO-P                        2O
                        5 glasses with additions of MgO and CaF
                        2 were used as a sintering aid of hydroxyapatite, and glass-reinforced hydroxyapatite composites obtained. Glasses promoted significant changes in the microstructure of the composites, namely with the formation of tricalcium phosphate secondary phases, β and α-TCP. Quantitative phase analysis was performed by the Rietveld method using General Structure Analysis Software. Grain size measurements were carried out on SEM photomicrographs, using a planimetric procedure according to ASTM E 112-88. Flexural bending strength was determined from concentric ring-on-ring testing. Flexural bending strength (FBS) of glass-reinforced hydroxyapatite composites was found to be about twice or three times higher than that of unreinforced hydroxyapatite and tended to depend more on porosity and β and α-TCP secondary phases, rather than on grain size. Traces of α-tricalcium phosphate significantly enhanced the strength of the composites. Using the rule of mixtures to estimate the zero porosity bending strength, the Duckworth-Knudsen model applied to the composites gave a porosity correction factor, b, with a value of 4.02. Weibull statistics were also used to analyze biaxial strength data and the level of reinforcement obtained by comparing failure probability for the composites and for the unreinforced hydroxyapatite. Lower activation energies for grain growth were observed for the composites compared to unreinforced hydroxyapatite, which should be attributed to the presence of a liquid glassy phase that promotes atomic diffusion during the sintering process.
CaO-P
                        2O
                        5 glasses with additions of MgO and CaF
                        2 were used as a sintering aid of hydroxyapatite, and glass-reinforced hydroxyapatite composites obtained. Glasses promoted significant changes in the microstructure of the composites, namely with the formation of tricalcium phosphate secondary phases, β and α-TCP. Quantitative phase analysis was performed by the Rietveld method using General Structure Analysis Software. Grain size measurements were carried out on SEM photomicrographs, using a planimetric procedure according to ASTM E 112-88. Flexural bending strength was determined from concentric ring-on-ring testing. Flexural bending strength (FBS) of glass-reinforced hydroxyapatite composites was found to be about twice or three times higher than that of unreinforced hydroxyapatite and tended to depend more on porosity and β and α-TCP secondary phases, rather than on grain size. Traces of α-tricalcium phosphate significantly enhanced the strength of the composites. Using the rule of mixtures to estimate the zero porosity bending strength, the Duckworth-Knudsen model applied to the composites gave a porosity correction factor, b, with a value of 4.02. Weibull statistics were also used to analyze biaxial strength data and the level of reinforcement obtained by comparing failure probability for the composites and for the unreinforced hydroxyapatite. Lower activation energies for grain growth were observed for the composites compared to unreinforced hydroxyapatite, which should be attributed to the presence of a liquid glassy phase that promotes atomic diffusion during the sintering process.
},
	keywords = {article, atom, Bending (deformation), Biocompatibility, Biocompatible Materials, Biomaterials, calcium fluoride, calcium phosphate, Calcium phosphates, Composite materials, Densification, Dental application, dentistry, Duckworth-Knudsen model, glass, Glass reinforced hydroxyapatite, Humans, hydroxyapatite, Hydroxyapatite-glass composites, Hydroxyapatites, Implants (surgical), Magnesium Oxide, mathematical analysis, Mechanical strength, Mechanics, Medical applications, Microstructure, orthopedics, Phase composition, physical chemistry, porosity, Scanning electron microscopy, Strength of materials, tensile strength, Tissue, Tricalcium phosphate},
	isbn = {00219304 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0032868650\&partnerID=40\&md5=e6fa831a838301db0336e9010a0800dd},
	author = {Lopes, M.A. and Monteiro, F.J. and Santos, J.D.}
}
@article {2575,
	title = {Hydrophobicity, surface tension, and zeta potential measurements of glass-reinforced hydroxyapatite composites},
	journal = {Journal of Biomedical Materials ResearchJ. Biomed. Mater. Res.},
	volume = {45},
	year = {1999},
	note = {Cited By (since 1996): 46Export Date: 21 November 2012Source: ScopusCODEN: JBMRBdoi: 10.1002/(SICI)1097-4636(19990615)45:4<370::AID-JBM12>3.0.CO;2-0PubMed ID: 10321710Language of Original Document: EnglishCorrespondence Address: Santos, J.D.; INEB, University of Porto, Rua do Campo Alegre, 823, 4150 Porto, PortugalChemicals/CAS: Biocompatible Materials; Calcium Phosphates; Hydroxyapatites; Proteins; VitronectinReferences: Yamamuro, Y., Hench, L.L., Wilson, J., (1990) CRC Handbook of Bioactive Ceramics, , Boca Raton, FL: CRC Press;Santos, J.D., Knowles, J.C., Reis, R.L., Monteiro, F.J., Hastings, G.W., Microstructural characterization of glass reinforced hydroxyapatite composites (1994) Biomaterials, 15, pp. 5-10; 
Aoki, H., Medical applications of hydroxyapatite (1991) Science and Medical Applications of Hydroxyapatite, pp. 1-214. , Aoki H, Sawai K, editors. Tokyo: Takyama Press System Center; 
Akao, M., Aoki, H., Kato, K., Mechanical properties of sintered hydroxyapatite for prosthetic applications (1981) J Mater Sci, 16, pp. 809-812; 
Davies, J.E., The importance and measurement of surface charge species in cell behaviour at the biomaterial interface (1988) Surface Characterization of Biomaterials, pp. 219-234. , Ratner BD. New York: Elsevier; 
Ratner, B.D., Biomaterial surfaces (1987) J Biomed Mater Res Appl Biomat, 21, pp. 59-90; 
Manson, S.R., Harker, L.A., Ratner, B.D., Hoffman, A.S., Evaluation of artificial surfaces with a non human primate model of arterial thrombosis (1980) J Lab Clin Med, 95, pp. 289-304; 
Grinnell, F., Milamand, M., Srere, P.A., Studies on cell adhesion (1972) Arch biochem biophys, 153, pp. 193-198; 
Chang, S.K., Hum, O.S., Moscarello, Ma., Neumann, A.W., Zing, W., Leutheusser, M.J., Ruegsegger, B., Platelet adhesion to solid surfaces: The effect of plasma proteins and substrate wettability (1997) Med Progr Technol, 5, pp. 57-66; 
Agathopoulos, S., Nikolopoulos, P., Determination of the energy of the interactions oxides and biological liquids (1995) Fourth Euro Ceramics, 8, pp. 319-324. , Ravaglioli A, editor; 
Lapin, M., Warocquier-Cl{\'e}rout, R., Legris, C., Degrange, M., Luizard, M.F.S., Correlation between roughness and wettability, cell adhesion and cell migration (1997) J Biomed Mater Res, 36, pp. 99-108; 
Williams, D.F., Bagnall, R.D., Adsorption of proteins on polymers and its role in the response of soft tissue (1998) Fundamental Aspects of Biocompatibility, 2, pp. 113-127. , Williams DF, editor. Boca Raton, FL: CRC Press; 
Dimitrov, S., Krachevsky, P.A., Nikolov, A.D., Noshi, H., Matsumoto, M., Contact angle measurements with sessile drops and bubbles (1991) J Colloid Interface Sci, 145, pp. 279-282; 
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Correia, N.T., Ramos, J.M., Saramago, B., Calado, J., Estimation of the surface tension of a solid: Application to a liquid crystalline (1997) J Colloid Interface Sci, 189, pp. 361-369; 
Owens, D.K., Wendt, R.D., Estimation of the surface free energy of polymers (1969) J Appl Polym Sci, 13, p. 1741; 
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Kowalchuk, R.M., Pollack, S.R., Ducheyne, P., King, L.A., Particle microelectrophoresis of calcium-deficient hydroxyapatite: Solution composition and kinetics effects (1993) J Biomed Mater Res, 27, pp. 783-790; 
Ducheyne, P., Kim, C.S., Pollack, S.R., The effect of phase differences on the time dependent variation of the zeta potential of hydroxyapatite (1992) J Biomed Mater Res, 26, pp. 147-168; 
Suzuki, T., Nishizawa, K., Yokogawa, Y., Kameyama, T., Time-dependent variation of the surface structure of bioceramics in tissue culture medium and the effect on adhesiveness of cells (1996) J Ferment Bioeng, 81, pp. 226-232; 
Susuki, T., Yamamoto, T., Yoriyama, M., Kameyama, T., Surface instability of calcium phosphates ceramics in tissue culture medium and the effect on adhesion and growth of anchorage-dependent animal cells (1997) J Biomed Mater Res, 34, pp. 507-517; 
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Lopes, Ma., Knowles, J.C., Santos, J.D., Monteiro, F.J., Olsen, I., Flow cytometry for assessing biocompatibility (1998) J Biomed Mater Res, 41, pp. 649-656; 
Lopes, Ma., Santos, J.D., Monteiro, F.J., Knowles, J.C., Glass reinforced hydroxyapatite: A comprehensive study of the effect of glass composition on the crystallography of the composite (1998) J Biomed Mater Res, 39, pp. 244-251; 
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Hench, L.L., Ethridge, E.C., (1982) Biomaterials: An Interfacial Approach, , New York: Academic Press; 
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Vogler, E.A., Interfacial chemistry in biomaterials science (1993) Wettability, 49, pp. 183-250. , Berg JC, editor New York: Marcel Dekker; Chapter 4
},
	month = {1999///},
	pages = {370 - 375},
	publisher = {John Wiley \& Sons Inc},
	abstract = {Wettability and zeta potential studies were performed to characterize the hydrophobicity, surface tension, and surface charge of P                        2O
                        5-glass- reinforced hydroxyapatite composites. Quantitative phase analysis was performed by the Rietveld method using GSAS software applied to X-ray diffractograms. Surface charge was assessed by zeta potential measurements. Protein adsorption studies were performed using vitronectin. Contact angles and surface tensions variation with time were determined by the sessile and pendent drop techniques, respectively, using ADSA-P software. The highest (- 18.1 mV) and lowest (-28.7 mV) values of zeta potential were found for hydroxyapatite (HA) and β-tricalcium phosphate (β-TCP), respectively, with composite materials presenting values in between. All studied bioceramic materials showed similar solid surface tension. For HA and β-TCP, solid surface tensions of 46.7 and 45.3 mJ/m
                        2, respectively, were obtained, while composites presented intermediate surface tension values. The dispersive component of surface tension was the predominant one for all materials studied. Adhesion work values between the vitronectin solution and HA and β- TCP were found to be 79.8 and 88.0 mJ/m
                        2, respectively, while the 4.0 wt \% glass composites showed slightly lower values than the 2.5 wt \% ones. The presence of β-TCP influenced surface charge, hydrophobicity, and protein adsorption of the glass-reinforced HA composites, and therefore indirectly affected cell-biomaterial interactions.
The hydrophobicity, surface tension, and surface charge of P
                        2O
                        5-glass-reinforced hydroxyapatite (HA) composites were characterized through wettability and zeta potential studies. The highest and lowest values of zeta potential were found for HA and β-TCP. All studied bioceramic materials showed similar solid surface tension. The presence of β-TCP indirectly affected cell-biomaterial interactions.
},
	keywords = {Adhesion, Adsorption, Algorithms, article, Biocompatible Materials, biomaterial, Biomaterials, Bone, Calcium Compounds, calcium phosphate, Calcium phosphates, Cells, Chemical analysis, Chemistry, Physical, Composite materials, Contact angle, glass, Glass reinforced hydroxyapatite composites, hydrophobicity, hydroxyapatite, Hydroxyapatite-glass composites, Hydroxyapatites, implant, Implants (surgical), Interfacial energy, Phosphorus Compounds, Protein adsorption, Proteins, Surface charge, Surface Properties, surface property, Surface tension, Tricalcium phosphate, Vitronectin, wettability, X-Ray Diffraction, Zeta potential},
	isbn = {00219304 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0033563979\&partnerID=40\&md5=3807a20c608ec3dcf8cce1d48213c1a3},
	author = {Lopes, M.A. and Monteiro, F.J. and Santos, J.D. and Serro, A.P. and Saramago, B.}
}
@article {2576,
	title = {Miniaturization and application of the MTT assay to evaluate metabolic activity of protozoa in the presence of toxicants},
	journal = {Journal of Basic MicrobiologyJ. Basic Microbiol.},
	volume = {39},
	year = {1999},
	note = {Cited By (since 1996): 13Export Date: 21 November 2012Source: ScopusCODEN: JBMIEdoi: 10.1002/(SICI)1521-4028(199905)39:2<103::AID-JOBM103>3.0.CO;2-DPubMed ID: 10335603Language of Original Document: EnglishCorrespondence Address: Lima, N.; Centro de Engenharia Biologica, Universidade do Minho, 4700 Braga, Portugal; email: nelson@iec.uminho.ptChemicals/CAS: Copper, 7440-50-8; Cycloheximide, 66-81-9; Octoxynol, 9002-93-1; Tetrazolium Salts; Thiazoles; thiazolyl blue, 298-93-1; Zinc, 7440-66-6References: Berridge, M.V., Tan, S., Characterization of the cellular reduction of using 3-[4,5-dimethyl-thiazol-2-y1]-2,5-diphenyl-tetrazolium bromide-MTT: Subcellular localization, substrate dependence, and involvement of mitochondrial electron transport in MTT reduction (1993) Arch. Biochem. Biophysics, 303, pp. 474-482;Berridge, M.V., Tan, S., McCoy, K.D., Wang, R., The biochemical and cellular basis of cell proliferation assays that use tetrazolium salts (1996) Biochemica, 4, pp. 15-20; 
Carvalho, G.S., Castanheira, M., Diogo, I., Abreu, A.M., Sousa, J.P., Loon, J.A., Van Blitterswijk, C.A., Inhibition and stimulation of enzymatic activities of human fibroblasts by corrosion products and metal salts (1996) J. Mat. Science: Mat. in Medicine, 7, pp. 77-83; 
Ciappeti, G., Cenni, E., Pratelli, L., Pizzoferrato, A., In vitro evaluation of cell/biomaterial interaction by MTT assay (1993) Biomaterials, 14, pp. 359-364; 
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Dias, N., Lima, N., Carvalho, G.S., Mota, M., Miniaturiza{\c c}{\~a}o do ensaio do MTT para avalia{\c c}{\~a}o da actividade metab{\'o}lica dos protozo{\'a}rios (1997) Congresso Nacional de Microbiologia-MICRO{\textquoteright} 97, , Tomar; 
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},
	month = {1999///},
	pages = {103 - 108},
	abstract = {This paper describes a critical evaluation of a miniaturised colorimetric assay, using MTT (3-[4,5-dimethyl-thiazol-2-yl]-2,5-diphenyl-tetrazolium bromide) reduction, applied to protozoan viability testing. The toxic substances used were copper, zinc, Triton X-100 (a membrane surfactant) and cycloheximide (an inhibitor of the protein synthesis). The viability assay of the ciliate protozoan Tetrahymena pyriformis was optimised in terms of MTT concentration and incubation time. Since protozoa are non adherent cells the MTT assay was modified in order to maintain the medium in the well. MTT proved to be effective in the measurement of Tetrahymena pyriformis viability. Four hours of MTT incubation followed by 30 minutes of incubation with DMSO were found to be the best incubation times for optical density reading. Furthermore, 10 mg/ml of MTT solution was the concentration that gave higher values of optical densities with minor medium interference.},
	keywords = {Animals, Ciliophora, Colorimetry, Copper, Cycloheximide, MTT assay, Octoxynol, Protozoa, Tetrahymena pyriformis, Tetrazolium Salts, Thiazoles, Zinc},
	isbn = {0233111X (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0032910642\&partnerID=40\&md5=81e222339d4ee5c21619858027047e83},
	author = {Dias, N. and Nicolau, A. and Carvalho, G.S. and Mota, M. and Lima, N.}
}
@article {2580,
	title = {Flow cytometry for assessing biocompatibility},
	journal = {Journal of Biomedical Materials ResearchJ. Biomed. Mater. Res.},
	volume = {41},
	year = {1998},
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Kieswetter, K., Schwartz, Z., Hummert, T.W., Cochran, D.L., Simpson, J., Sean, D.P., Boyan, B.D., Surface roughness modulates the local production of growth factors and cytokines by osteoblast-like MG-63 cells (1996) J. Biomed. Mater. Res., 32, pp. 55-63; 
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Chesmel, K.D., Clark, C.C., Brighton, C.T., Black, J., Cellular response to chemical and morphologic aspects of biomaterial surfaces. II. The biosynthetic and migratory response of bone cell populations (1995) J. Biomed. Mater. Res., 29, pp. 1101-1110; 
Nishizawa, K., Toriyama, M., Suzuki, T., Kawamoto, Y., Yokogawa, Y., Nagae, H., Effects of the surface wettability and zeta potential of bioceramics on the adhesiveness of anchorage-dependent animal cells (1993) J. Ferment. Bioeng., 75, pp. 435-437; 
Lopes, M.A., Santos, J.D., Monteiro, F.J., Knowles, J.C., Glass reinforced hydroxyapatite: A comprehensive study of the effect of glass composition on the crystallography of the composite (1998) J. Biomed. Mater. Res., 39, pp. 244-251
},
	month = {1998///},
	pages = {649 - 656},
	publisher = {John Wiley \& Sons Inc},
	abstract = {Flow cytometry (FCM) was examined as a possible procedure for measuring in vitro the biocompatibility of implant materials for orthopedic and dental surgery. The human osteoblast-like cell line MG63 was grown on hydroxyapatite (HA) and P                        2O
                        5 glass-reinforced HA composite discs and compared with the same cells grown on polystyrene culture dishes. While morphological observation at the light and electron microscopic levels showed no major deleterious effects, FCM indicated that cell size was somewhat reduced, particularly by growth on the HA composite. Moreover, this material also appeared to delay the progression of the cells from the G0/G1 into the S phase of the cell cycle. In addition to this low level of inhibition of cell growth relative to control cultures, FCM analysis also demonstrated that the glass-reinforced HA caused some down-regulation of the expression of osteocalcin and fibronectin, two antigens which play a vital part in the integrity and function of bone and soft connective tissue, respectively. These results thus show, first, that although HA and the HA composite used in these experiments were generally biocompatible, they nevertheless had certain suboptimal effects on the cells; and second, that FCM could be a highly useful procedure for effectively screening and evaluating important biological responses to implant materials.
Flow cytometry (FCM) was examined as a possible procedure for measuring in vitro the biocompatibility of implant materials for orthopedic and dental surgery. The human osteoblast-like cell line MG63 was grown on hydroxyapatite (HA) and P
                        2O
                        5 glass-reinforced HA composite discs and compared with the same cells grown on polystyrene culture dishes. While morphological observation at the light and electron microscopic levels showed no major deleterious effects, FCM indicated that cell size was somewhat reduced, particularly by growth on the HA composite. Moreover, this material also appeared to delay the progression of the cells from the G0/G1 into the S phase of the cell cycle. In addition to this low level of inhibition of cell growth relative to control cultures, FCM analysis also demonstrated that the glass-reinforced HA caused some down-regulation of the expression of osteocalcin and fibronectin, two antigens which play a vital part in the integrity and function of bone and soft connective tissue, respectively. These results thus show, first, that although HA and the HA composite used in these experiments were generally biocompatible, they nevertheless had certain suboptimal effects on the cells; and second, that FCM could be a highly useful procedure for effectively screening and evaluating important biological responses to implant materials.
},
	keywords = {antigen expression, Antigens, Biocompatibility, Biocompatible Materials, biomaterial, Biomaterials, Biomedical engineering, Bone and Bones, bone prosthesis, Cell culture, cell cycle, cell cycle s phase, Cell Line, Cell size, cell ultrastructure, Cells, Collagen, conference paper, Dental Implants, dentistry, extracellular matrix, Fibronectin, Fibronectins, flow cytometry, Glass fiber reinforced plastics, growth inhibition, human, human cell, Humans, hydroxyapatite, Implants, Implants (surgical), Microscopy, Electron, Scanning, mitosis inhibition, morphology, orthopedics, Osteoblasts, osteocalcin, Polystyrenes, Prostheses and Implants, prosthesis material, Tissue, tooth prosthesis},
	isbn = {00219304 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0032531299\&partnerID=40\&md5=5ea21d124ffce48018967f988cac815c},
	author = {Lopes, M.A. and Knowles, J.C. and Kuru, L. and Santos, J.D. and Monteiro, F.J. and Olsen, I.}
}
@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; 
Howlett, C.R., Evans, M.D.M., Wildish, K.L., Kelly, J.C., Fisher, L.R., Francis, G.W., Best, D.J., (1993) Clin. Mater., 14, p. 57; 
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; 
Maniatopoulos, C., Sodek, J., Melcher, A.H., (1988) Cell Tissue Res., 254, p. 317; 
Vrouwenvelder, W.C.A., De Groot, C.G., De Groot, K., (1993) J. Biomed. Mater. Res., 27, p. 465; 
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 {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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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 {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; 
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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; 
Leit{\~a}o, E., Barbosa, M.A., De Groot, K., (1995) J. Mater. Sci.: Mater. in Med., 6, pp. 849-852; 
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Bernard, F., Dupuy-Philon, J., Bert, J., Remy, D., Meyer, B., Besse, J.L., (1995) Advances in Mater. Sci. and Implant Orthop. Surgery, pp. 195-206. , edited by R. Kossowsky and N. Kossovsky; 
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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Rauschenbach, B., (1991) Nucl. Inst. Meth. Phy. Res., B53, pp. 35-45; 
Dos Santos, C.A., Behar, M., De Souza, J.P., Baumvol, I.J.R., (1983) Nucl. Instrum. Methods, 209-210, pp. 907-912; 
Helmig, K., Rauschenbach, B., (1986) Phys. Stat. Sol. (B), 138, pp. k1-k6; 
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; 
Nakayama, Y., Yamamuro, T., Kumar, P., Shimisu, K., Kotoura, Y., Oka, M., Kwafuku, J., Takashima, T., (1990) J. Appl. Biomater., 1, pp. 307-313; 
Puleo, D.A., Huh, W.W., (1995) J. Appl. Biomater., 6, pp. 109-116; 
Sundgreen, J.-E., Bod{\"o}, P., Lundstr{\"o}m, I., (1986) J. Colloid Interface Sci., 110, pp. 9-20; 
Merrit, K., Brown, S.A., (1995) J. Biomedical Mater. Res., 29, pp. 627-633; 
Merrit, K., Brown, S.A., (1994) Tech Orthop., 8, pp. 228-236; 
Pereira, M.L., Abreu, A.M., Sousa, J.P., Carvalho, G.S., (1995) J. Mater. Sci. Mater. Med., 6, pp. 523-527; 
Johansson, C.B., Lausmaa, J., R{\"o}stlund, T., Thomsen, P., (1993) J. Mater. Sci. Mater. Med., 4, pp. 132-141; 
Bernard, F., Dupuy-Philon, J., Bert, J., Remy, D., Moyen, B., Besse, J.L., Advances in materials science and implant orthopaedic surgery (1995) NATO-ASI Series E: Applied Science, 24, pp. 195-206. , edited by R. Kossowsky and N. Kossowsky; 
Rauschenbach, B., (1991) Nucl. Instrum. Methods Phys. Res., B53, pp. 35-45; 
Rauschenbach, B., Kolitsch, A., Hohmuth, K., (1983) Phys. Status Solidi (A), 80, pp. 471-482; 
Howlett, C.R., Evans, M.D.M., Wildish, K.L., Kelly, J.C., Fisher, L.R., Francis, G.W., Best, D.J., (1993) Clin. Mater., 14, pp. 57-64; 
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, pp. 715-722; 
R{\"o}stlund, T., Thomson, P., Bjursten, L.M., Ericson, L.E., (1990) J. Biomed. Mater. Res., 24, pp. 847-860; 
Leit{\~a}o, E., S{\'a}, C., Silva, R.A., Barbosa, M.A., Ali, H., (1995) Corros. Sci., 37, pp. 1861-1866; 
Barbosa, M.A., (1989) Portugaliae Electrochimica Acta, 7, pp. 567-590; 
Rauschenbach, B., Kolitsch, A., (1983) Phys. Status Solidi (A), 80, pp. 211-222; 
Rauschenbach, B., (1991) Nucl. Tracks Radiat. Meus., 19, pp. 943-946; 
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Hu, W.W., Herman, H., Clayton, C.R., Kozubowski, J., Kant, R.A., Hirvonen, J.K., Maccrone, R.K., Surface related mechanical properties of nitrogen implanted 1018 steel (1979) Proc. Ion Implantation Metallurgy, p. 92. , edited by C. M. Preece and J. K. Hirvonen AIME. Warrendale, Cambridge, MA; 
Dos Santos, C.A., Behar, M., De Souza, J.P., Baumvol, I.J.R., (1983) Nucl. Inustrum. Methods, 209-210, pp. 907-912; 
Sousa, S., Barbosa, M.A., (1991) J. Mater. Sci. Mater. Med., 2, pp. 19-26; 
Klein, C.A.P.T., Patka, P., Wolke, J.G.C., De Blieck-Hogervorst, J.M.A., De Groot, K., (1994) Biomaterials, 15, pp. 146-150
},
	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; 
Martin, J.Y., Schwartz, Z., Hummert, T.W., Schraub, D.M., Simpson, J., Lankford J., Jr., Dean, D.D., Boyan, B.D., (1995) J. Biomedical Mater. Res., 29, pp. 389-401; 
Groessner-Schreiber, B., Tuan, R.S., (1992) J. of Cell Sc., 101, pp. 209-217; 
Peidl, R.D., Ramp, W.K., Nicholson, N.C., Kaisinger, K.K., Harrow, M.E., (1994) 20th Annual Meeting of the Society for Biomaterials, 11. , Boston, USA; 
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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 {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., 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 {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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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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},
	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 {2626,
	title = {Inhibition and stimulation of enzymatic activities of human fibroblasts by corrosion products and metal salts},
	journal = {Journal of Materials Science: Materials in MedicineJ. MATER. SCI. MATER. MED.},
	volume = {7},
	year = {1996},
	note = {Cited By (since 1996): 9Export Date: 21 November 2012Source: ScopusCODEN: JSMMELanguage of Original Document: EnglishCorrespondence Address: Carvalho, G.S.; INEB-Instituto Engenharia Biomedica, Portugal Universidade do Minho, Praca Coronel Pacheco, 1, 4000 Porto, PortugalChemicals/CAS: 3 (4,5 dimethyl 2 thiazolyl) 2,5 diphenyltetrazolium bromide, 298-93-1; acid phosphatase, 9001-77-8, 9025-88-1; chromium, 16065-83-1, 7440-47-3; DNA, 9007-49-2; iron, 14093-02-8, 53858-86-9, 7439-89-6; neutral red, 553-24-2; nickel, 7440-02-0; stainless steel, 12597-68-1References: Pohler, O.E.M., (1983) Biomaterials in Reconstructive Surgery, p. 158. , C.V. Mosby, St. Louis;Galante, J.O., Lemons, J., Spector, M., Wilson Jr., P.D., Wright, T.M., (1991) J. Orthop. Res., 9, p. 760; 
Henning, E.F., Raithel, H.J., Schaller, K.H., D{\"o}hler, J.R., (1992) J. Trace Elem. Electrolytes Health Dis., 6, p. 239; 
Maloney, W.J., Smith, R.L., Castro, F., Schurman, J., (1993) J. Bone Joint Surg., 75 A, p. 835; 
Jorgensen, T.J., Munno, F., Mitchell, T.G., Hungerford, D., (1983) Clin. Orthop., 176, p. 124; 
Jones, L.C., Hungerford, D.S., (1987) Trans Orthop. Res. Soc., 32, p. 317; 
Stulberg, B.N., Watson, J.T., Shull, S.L., Merritt, K., Crowe, T.D., Stulberg, S.D., Guidry, C.H., (1987) Trans Orthop. Res. Soc., 33, p. 314; 
Sunderman Jr., F.W., Hopfer, S.M., Swift, T., Rezuke, W.N., Ziebka, L., Highman, P., Edwards, B., Gossling, H.R., (1989) J. Orthop. Res., 7, p. 307; 
Merritt, K., Brown, S.A., Sharkey, N.A., (1984) J. Biomed. Mater. Res., 18, p. 991; 
Brown, S.A., Farnsworth, L.J., Merritt, K., Crowe, T.D., (1988) Biomed. Mater. Res., 22, p. 321; 
Merritt, K., Crowe, T.D., Brown, S.A., (1989) J. Biomed. Mater. Res., 23, p. 845; 
Merritt, K., Margevicius, R.W., Brown, S.A., (1992) J. Biomed. Mater. Res., 26, p. 1503; 
Brown, S.A., Zhang, K., Merritt, K., Payer, J.H., (1993) J. Biomed. Mater. Res., 27, p. 1007; 
Pereira, M.L., Silva, A., Tracana, R., Carvalho, G.S., (1994) Cytobios, 77, p. 73; 
Pereira, M.L., Abreu, A.M., Sousa, J.P., Carvalho, G.S., (1995) J. Mater. Sci. Mater. Med., 6, p. 523; 
Tracana, R.B., Pereira, M.L., Abreu, A.M., Sousa, J.P., Carvalho, G.S., (1995) J. Mater. Sci. Mater. Med., 6, p. 56; 
Bravo, I., Sousa, S.R., Carvalho, G.S., Barbosa, M., (1992) Advances in Biomaterials, p. 7. , edited by P. J. Doherty et al. Elsevier, Amsterdam; 
Vrouwenvelder, W.C.A., Groot, C.G., DeGroot, K., (1993) J. Biomed. Mater. Res., 27, p. 465; 
Ciapetti, G., Cenni, E., Pratelli, L., Pizzoferrato, A., (1993) Biomaterials, 14, p. 359; 
Martin, A., Clynes, M., (1991) In Vitro Cell. Dev. Biol., 27 A, p. 183; 
Borenfreund, E., Puerner, J.A., (1983) J. Tissue Culture Methods, 9, p. 7; 
Hansen, M.B., Nielsen, S.E., Berg, K., (1989) J. Immunol. Methods, 119, p. 203; 
Rosdy, M., Grisoni, B., Claus, L.C., (1991) Biomaterials, 12, p. 511; 
Van Sliedregt, A., Radder, A.M., De Groot, K., Van Blitterswijk, C.A., (1992) J. Mater. Sci. Mater. Med., 3, p. 365; 
Caughman, W.F., Caughman, G.B., Shiflett, R.A., Rueggeberg, F., Schuster, G.S., (1991) Biomaterials, 12, p. 737; 
Carvalho, G.S., Bravo, I., (1993) J. Mater. Sci. Mater. Med., 4, p. 366; 
Harmand, M.F., Bordenave, L., Bareille, R., Naji, A., Jeandot, R., Rouais, F., Ducassou, D., (1991) J. Biomater. Sci. Polymer Edn., 2, p. 67; 
Katz, A., Feldman, M., Eisenbach, L., (1992) J. Immunol. Methods, 149, p. 117; 
Naji, A., Harmand, M.F., (1990) J. Biomed. Mater. Res., 24, p. 861; 
Mosmann, T., (1983) J. Immunol. Methods, 65, p. 55; 
Berridge, M.V., Tan, S., (1993) Arch. Biochem. Biophys., 303, p. 474
},
	month = {1996///},
	pages = {77 - 83},
	publisher = {Chapman \& Hall Ltd},
	abstract = {Fibroblasts from normal human skin were cultured for a period of 21 days in the absence or in the presence of metal ions. The effects of stainless steel (SS) corrosion products were compared to the effects of iron, chromium and nickel ions used either separately (Fe, Cr, or Ni solutions) or combined (Fe+Cr+Ni solution). At several periods of time (4, 7, 14 and 21 days) the cell cultures were analysed for the following parameters: (a) metal ion accumulation by atomic absorption spectrometry; (b) cell morphology and viability by the neutral red assay; (c) cell proliferation by DNA assessment, and enzyme activity by both (d) MTT reduction and (e) acid phosphatase activity. Results showed that SS-corrosion products and the corresponding metal ions combined at the same concentrations, Fe+Cr+Ni solution, had opposite effects on fibroblast cultures. In fact, SS-corrosion products caused no apparent effects on cell morphology nor on cell proliferation whereas Fe+Cr+Ni solution stimulated both neutral red uptake and cell proliferation. The enzymatic assays showed that SS-corrosion products caused inhibition of both MTT reduction and acid phosphatase activity in contrast to Fe+Cr+Ni solution which stimulated their activity. Furthermore, in all biological parameters studied, a strong association was observed between the effects of Fe+Cr+Ni solution and Cr alone, suggesting that Cr was the metal ion mostly involved in the stimulatory effects of the combined solution.Fibroblasts from normal human skin were cultured for 21 days in the absence, or presence, of metal ions. The effects of stainless steel (SS) corrosion products were compared to the effects of iron, chromium, and nickel ions used either separately or combined. At different periods of time, the cell cultures were analyzed for the following parameters: metal ion accumulation by atomic absorption spectrometry; cell morphology and viability by the neutral red assay; cell proliferation by DNA assessment; and enzyme activity by both MTT reduction and acid phosphatase activity. Results show that SS-corrosion products and the corresponding metal ions combined at the same concentrations, Fe+Cr+Ni solution, have opposite effects on fibroblast cultures.
},
	keywords = {3 (4,5 dimethyl 2 thiazolyl) 2,5 diphenyltetrazolium bromide, Absorption spectroscopy, Acid phosphatase, article, atomic absorption spectrometry, Atomic spectroscopy, Bioassay, Cell culture, Cell morphology, cell proliferation, cell structure, cell viability, Chromium, controlled study, Corrosion, Corrosion products, cytology, DNA, Enzymatic assays, Enzyme Activation, enzyme activity, Enzyme inhibition, fibroblast, human, human cell, Ions, Iron, metal, Metal ion accumulation, Metal salts, Metals, neutral red, Nickel, priority journal, Salts, Skin, skin fibroblast, Stainless steel, Steel corrosion},
	isbn = {09574530 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0030087165\&partnerID=40\&md5=a26cd67a43c1fef54a5df943014fd7c6},
	author = {Carvalho, G.S. and Castanheira, M. and Diogo, I. and Abreu, A.M. and Sousa, J.P. and Loon, J.A. and Van Blitterswijk, C.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 {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.}
}
