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	Provedor de dados Anais da ABC (AABC) (2) Autor CIUFFI,KATIA J. (2) BIAZZOTTO,JULIANA C. (1) CALEFI,PAULO S. (1) FARIA,EMERSON H. (1) IAMAMOTO,YASSUKO (1) LIMA,OMAR J. DE (1) NASSAR,EDUARDO J. (1) RIBEIRO,THIAGO J. (1) ROCHA,LUCAS A. (1) SACCO,HÉRICA C. (1) SERRA,OSVALDO A. (1) Mais... Palavra-chave Bioativo (1) Biomateriais (1) Catalysis (1) Hybrid material (1) Metalloporphyrin silica (1) Metodologia sol­gel (1) SBF (1) Sol-gel (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2014 (1) 2000 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Sol-gel as methodology to obtain bioactive materials Anais da ABC (AABC) RIBEIRO,THIAGO J.; LIMA,OMAR J. DE; FARIA,EMERSON H.; ROCHA,LUCAS A.; CALEFI,PAULO S.; CIUFFI,KATIA J.; NASSAR,EDUARDO J.. We employed the sol­gel methodology to obtain a silica matrix modified with calcium and phosphate ions. We prepared the matrix by hydrolysis and condensation of the precursors triethyl phosphate, calcium nitrate, and tetraethylorthosilicate, which were the sources of phosphate, calcium, and silicon, respectively. We dried and heat­treated the samples at 110 or 900°C and placed them in simulated body fluid (SBF) for three days. We conducted scanning electron microscopy, X­ray diffraction, and infrared spectroscopy analyses, which evidenced that the sample treated at 110°C contained calcium phosphate silicate and hydroxyapatite before and after contact with SBF, respectively. The sample treated at 900°C exhibited a hydroxyapatite phase before and after... Tipo: Info:eu-repo/semantics/article Palavras-chave: Biomateriais; Bioativo; SBF; Metodologia sol­gel. Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000100027 Porphyrinosilica and metalloporphyrinosilica: hybrid organic-inorganic materials prepared by sol-gel processing Anais da ABC (AABC) IAMAMOTO,YASSUKO; SACCO,HÉRICA C.; BIAZZOTTO,JULIANA C.; CIUFFI,KATIA J.; SERRA,OSVALDO A.. New materials porphyrinosilica and metalloporphyrinosilica template have been obtained by a sol-gel processing where functionalyzed porphyrins and metalloporphyrins "building blocks" were assembled into a three-dimensional silicate network. The optimized conditions for preparation of these materials are revised. The monomer precursors porphyrinopropylsilyl and metalloporphyrinopropylsilyl preparation reactions and subsequent one pot sol-gel processing with tetraethoxysilane are discussed. In the case of metalloporphyrins the nitrogen base coordinates to the central metal and acts as a template in the molecular imprinting technique. UV-visible absorption spectroscopy, thermogravimetric analysis, electron paramagnetic resonance, nuclear magnetic spectra,... Tipo: Info:eu-repo/semantics/article Palavras-chave: Metalloporphyrin silica; Sol-gel; Catalysis; Hybrid material. Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652000000100008 Registros recuperados: 2 Primeira ... 1 ... Última

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