Data/hora: 09/06/2024 07:48:40

Provedor de dados: 	42	
País: 	Brazil	
Título: 	Sol-gel as methodology to obtain bioactive materials	
Autores: 	RIBEIRO,THIAGO J.; LIMA,OMAR J. DE; FARIA,EMERSON H.; ROCHA,LUCAS A.; CALEFI,PAULO S.; CIUFFI,KATIA J.; NASSAR,EDUARDO J.	
Data: 	2014-03-01	
Ano: 	2014	
Palavras-chave: 	Biomateriais; Bioativo; SBF; Metodologia sol­gel.	
Resumo: 	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 contact with SBF, but the crystalline phase was more evident after the contact. In conclusion, the sol­gel methodology provided bioactive samples for bone regeneration.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000100027	
Editor: 	Academia Brasileira de Ciências	
Relação: 	10.1590/0001-37652014106012	
Formato: 	text/html	
Fonte: 	Anais da Academia Brasileira de Ciências  v.86 n.1 2014	
Fonte: 	info:eu-repo/semantics/openAccess