Synthesis and characterization of a bioactive silicate ceramic from SiO2 nanoparticles
Carregando...
Data
Data de publicação:
2020
Orientador
Título da Revista
ISSN da Revista
Título do Volume
É parte de
É parte de
É parte de
É parte de
PAN-AMERICAN NANOTECHNOLOGY CONFERENCE, 2nd
Exportar
Resumo
Sol-gel and co-precipitation techniques have been used for synthesis of multiphase silicate ceramic from SiO2 nanoparticles. Non-aggregated colloidal SiO2 nano particles were initially prepared from a sodium silicate solution, by surfactant template sol-gel method. Afterward, calcium and magnesium hydroxides were co-precipitated on colloidal SiO2 nanoparticles surface. CaO-MgO-SiO2 sintered ceramic obtained from the synthesized powders were characterized by SEM,XRD and FTIR. In vitro tests were performed by soaking the sintered samples in the simulate blood fluid (SBF, at pH 7.25 and 37 ?C) to observe its bioactivity. After 7 days of immersion in SBF, the FTIR spectra analysis revealed that the material is bioactive, by the formation of hydroxyapatite on the surface of the sample. No toxic effect was found in the cytotoxicity tests with CHO (Chinese hamster ovary) cells.
Como referenciar
YAMAGATA, C.; RODAS, A.C.; HIGA, O.Z.; MELLO-CASTANHO, S. Synthesis and characterization of a bioactive silicate ceramic from SiO2 nanoparticles. In: PAN-AMERICAN NANOTECHNOLOGY CONFERENCE, 2nd, March 4-7, 2020, Águas de Lindoia, SP. Abstract... Disponível em: http://repositorio.ipen.br/handle/123456789/31878. Acesso em: 22 Feb 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.