Biocide glass based on Nb2O5-SiO-CaO-Na2O system

Autor(es)

Santos, Felipe A. ; Silva, Antonio C. ; Santos, Claudinei ; Simba, Bruno G. ; Bartolome, Jose F. ; Duran, Teresa ; Fernandez-Garcia, Elisa ; Rogero, Sizue O. ; Mello-Castanho, Sonia R. H.

• Tipo de documento: Artigo Científico
• Fonte: Materials Letters; v. 183, p. 277-280, NOV 15 2016.
• Citações Web of Science: 0

Resumo

In this work, glasses based on SiO-CaO-Na2O system containing different Nb2O5 contents were developed. Glasses were melted at 1500 degrees C and quenched in a metallic mould. Citotoxicity tests were performed using neutral red uptake methodology and indicated normal cell growth, which enables the use as biomaterial. Biocide activity was evaluated through glass incubation in bacterial suspension (Escherichia coil) at 37 degrees C under shaking. The composition with higher content of SiO2 and lower content of Nb2O5 presented higher biocide activity and the coefficient of thermal expansion indicate thermal compatibility with stainless steel 316 L and titanium alloys. (C) 2016 Elsevier B.V. All rights reserved. (AU)

• Processo FAPESP: 12/17646-8 - Recobrimentos vítreos biofuncionais para implantes médicos e odontológicos
• Beneficiário: Felipe Antunes Santos
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado