Microstructural characterization and in vitro apatite formation in CaO-P2O5-TiO2-MgO-Na2O glass-ceramics

• Tipo: Artigo em Revista Científica Internacional
• Data: 2001

Autores

Zhang, Y (Autor) Outra; Santos, JD (Autor) FEUP

Revista

Título: Journal of the European Ceramic Society

Vol. 21

Páginas: 169-175

ISSN: 0955-2219

Editora: Elsevier

Indexação

ISI Web of Knowledge - 19 Citações

ISI Web of Science

Scopus - 20 Citações

COMPENDEX

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia dos materiais

CORDIS: Ciências Tecnológicas > Engenharia > Engenharia de biomateriais ; Ciências Tecnológicas > Engenharia > Engenharia biomédica

Outras Informações

ID Authenticus: P-000-WHX

DOI: 10.1016/s0955-2219(00)00202-8

Abstract (EN): Bulk calcium phosphate glass and glass-ceramic with CaO/P2O5 molar ratio = 1.25 were prepared through introducing small amounts of Na2O, MgO, and TiO2 into the glass. Using XRD analysis, biocompatible beta -Ca2P2O7 (beta -DCP) and more soluble Ca and Na-containing phases were clearly identified in the microstructure. In vitro bioactivity was assessed by immersion testing in SBF-simulated body fluid and apatite crystals were formed after 4 and 8 weeks of soaking. Porous microstructure was produced through dissolution of soluble phases and desirable porous structure may be achieved by controlling size and distribution of these phases and the leaching process. Therefore, this glass-ceramic is expected to be used as bone repair and regeneration implants and drug delivery carrier.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 7