



@book {2213,
	title = {FTIR analysis and cytotoxicity test of titanium dioxide nanoparticles},
	series = {Key Engineering MaterialsKey Eng Mat},
	volume = {493-494},
	year = {2012},
	note = {Conference code: 87411Export Date: 21 November 2012Source: ScopusCODEN: KEMAEdoi: 10.4028/www.scientific.net/KEM.493-494.768Language of Original Document: EnglishCorrespondence Address: Rodrigues, L.R.; Department of Materials Engineering, Faculty of Mechanical Engineering, State University of Campinas, Campinas, S{\~a}o Paulo, Brazil; email: leo5002@fem.unicamp.brReferences: Pavlova, A., Barloti, J., Teters, V., Locs, J., Berzina-Cimdina, L., (2009) Processing and Application of Ceramics, 3 (4), pp. 187-190;Naldoni, A., Minguzzi, A., Vertova, A., Santo, V.D., Borgesec, L., Bianchi, C.L., (2010) J. Mater. Chem., 21, pp. 400-407; 
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},
	month = {2012///},
	pages = {768 - 774},
	address = {Istanbul},
	abstract = {Titanium dioxide is a material widely used in electronics industry and little explored in the biomedical area, which is the objective of this work. Nowadays one can find surgical instruments coated with thin films that have bactericidal properties when they are activated in the presence of ultraviolet light. For crystalline phase control TiO                        2 was calcinated at 500{\textdegree}C. The crystallite mean size for sample calcinated at 500{\textdegree}C was 27nm. With the results of cytotoxicity it is possible to say that biomedical applications are possible. Electron microscopy images showed nanoparticles obtained by sol-gel process and the compounds were identified by FTIR analysis. Raman spectroscopy confirmed the existence of anatase titania phase and X-ray diffraction showed this material to be composed of a crystalline phase. X-ray fluorescence identified chemical contaminants. {\textcopyright} (2012) Trans Tech Publications.
},
	keywords = {Anatase titania, Bactericidal properties, Bioceramics, Biomedical applications, Chemical contaminants, Crystalline materials, Crystalline phase, Crystallite size, Cytotoxicity, Cytotoxicity test, Electron microscopy images, Electronics industry, FTIR, FTIR analysis, Gels, Mean size, Medical applications, nanoparticles, Nanotechnology, Oxides, Raman spectroscopy, Scherrer equation, Scherrer equations, Sol-gel process, Sol-gel with sucrose, Sol-gels, Sols, Sugar (sucrose), Surgical equipment, Surgical instrument, TiO, Titanium, Titanium dioxide, Titanium dioxide nanoparticles, Ultra-violet light, Ultraviolet radiation, X ray diffraction, X ray fluorescence},
	isbn = {10139826 (ISSN); 9783037852552 (ISBN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-81555221106\&partnerID=40\&md5=6e76ec1290c649a4d981ebf5e2fbf4b3},
	author = {Rodrigues, L.R. and Dias, C.G.B.T. and Ceragioli, H.J. and Rodas, A.C.D. and Monteiro, F.J.M. and Zavaglia, C.A.C.}
}
@article {2212,
	title = {Synthesis of an O-alkynyl-chitosan and its chemoselective conjugation with a PEG-like amino-azide through click chemistry},
	journal = {Carbohydrate PolymersCarbohydr Polym},
	volume = {87},
	year = {2012},
	note = {Cited By (since 1996): 1Export Date: 21 November 2012Source: ScopusCODEN: CAPODdoi: 10.1016/j.carbpol.2011.07.043Language of Original Document: EnglishCorrespondence Address: Gomes, P.; CIQ-UP, Departamento de Qu{\'\i}mica e Bioqu{\'\i}mica, Universidade Do Porto, Rua do Campo Alegre 687, 4169-007 Porto, Portugal; email: pgomes@fc.up.ptReferences: Amaral, I.F., Granja, P., Barbosa, M.A., Chemical modification of chitosan by phosphorylation: An XPS, FT-IR and SEM study (2005) Journal of Biomaterials Science, Polymer Edition, 16, pp. 1575-1593;Amaral, I.F., Lamghari, M., Sousa, S.R., Sampaio, P., Barbosa, M.A., Rat bone marrow stromal cell osteogenic differentiation and fibronectin adsorption on chitosan membranes: The effect of the degree of acetylation (2005) Journal of Biomedical Materials Research, 75 A, pp. 387-397; 
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},
	month = {2012///},
	pages = {240 - 249},
	abstract = {N-Phthaloyl-chitosan O-prop-2-ynyl carbamate was prepared as a biopolymer amenable to undergo chemoselective conjugation by azide-alkyne coupling, while allowing upturn of chitosan{\textquoteright}s amines after dephthaloylation. N-phthaloylchitosan was prepared according to previously described methods and, due to its low solubility in current organic media, subsequent modifications were run in heterogeneous conditions. Activation of hydroxyls with carbonyl-1,1'- diimidazole and coupling to propargylamine yielded N-phthaloyl-chitosan O-prop-2-ynyl carbamate, then coupled to a model PEG-like azide by azide-alkyne coupling, giving the expected triazolyl conjugate. N-Dephthaloylation allowed recovery of the free amines, responsible for chitosan{\textquoteright}s bioadhesion and tissue-regeneration properties. The structures of all polymers were confirmed by Fourier-transformed infra-red (FT-IR) and X-ray photoelectron (XPS) spectroscopies, as well as by solid-state nuclear magnetic resonance (SSNMR). All chitosan derivatives were poorly soluble in both aqueous and organic media, which makes them suitable for topical applications or for removal of toxic substances from either the gastric intestinal tract or environmental sources. {\textcopyright} 2011 Elsevier Ltd. All Rights Reserved.},
	keywords = {1 ,3-Dipolarcycloaddition, Acetylene, Amines, Azide-alkyne coupling, Bio-adhesion, Bioadhesion, Biomaterials, chitosan, click chemistry, Cycloaddition, FTIR, Huisgen{\textquoteright}s 1,3-dipolar cycloaddition, Nuclear magnetic resonance, Nuclear magnetic resonance spectroscopy, Photoelectron spectroscopy, Resonance, Size exclusion chromatography, Size-exclusion chromatography, Solid state NMR, Solid-state NMR, Tissue, X ray photoelectron spectroscopy, XPS},
	isbn = {01448617 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-80054771159\&partnerID=40\&md5=3760f41563573759f0ce676fe813d6c6},
	author = {Oliveira, J.R. and Martins, M.C.L. and Mafra, L. and Gomes, P.}
}
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},
	month = {2004///},
	pages = {4607 - 4614},
	abstract = {Surface treatment of materials with excimer laser radiation often results in the formation of a rough columnar or cone-shaped surface topography, which leads to a considerable increase in the surface area. As a result, the search for a non-porous bioactive material with adequate mechanical properties and a high surface to volume ratio, similar to porous materials, which could be used for drug delivery in the treatment of periodontitis, justified assessing excimer laser surface treatment to promote controlled roughning of hydroxyapatite (HA) and glass-reinforced hydroxyapatite (GR-HA). A KrF excimer laser with 248nm radiation wavelength and 30ns pulse duration was used for surface modification. The laser treatment was carried out in air, using wide ranges of radiation fluence and number of laser pulses. In order to identify the physico-chemical changes induced by the laser treatment and the column formation mechanisms in these materials, the treated surfaces were characterised by laser profilometry, scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and Fourier transform infra-red spectroscopy (FTIR). Laser processing induced the formation of a surface topography consisting of cone-shaped features. The constitution of the surface layer was also modified, as revealed by FTIR, XPS and XRD. This work has shown that laser surface modification increases the surface area of HA and GR-HA and is a promising technique to increase the reactivity and drug delivery capability of both materials. {\textcopyright} 2003 Elsevier Ltd. All rights reserved.},
	keywords = {article, Biocompatible Materials, Biomaterials, drug delivery system, Durapatite, Excimer laser, Excimer lasers, Fourier transform infrared spectroscopy, FTIR, glass, hydroxyapatite, infrared spectroscopy, laser, Lasers, Macromolecular Substances, materials testing, Molecular Conformation, Non-porous bioactive materials, periodontitis, physical chemistry, porosity, priority journal, Profilometry, Radiation Dosage, Reinforcement, Scanning electron microscopy, Surface area, Surface modification, Surface Properties, Surface treatment, topography, X ray diffraction, X ray diffraction analysis, X ray photoelectron spectroscopy, XPS, XRD},
	isbn = {01429612 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-2342427815\&partnerID=40\&md5=24da3c08c0c7b636d9d5039812944b52},
	author = {Queiroz, A.C. and Santos, J.D. and Vilar, R. and Eug{\'e}nio, S. and Monteiro, F.J.}
}
