Cerâmicas bioativas: estado da arte



Título del documento: Cerâmicas bioativas: estado da arte
Revista: Quimica nova
Base de datos: PERIÓDICA
Número de sistema: 000313316
ISSN: 0100-4042
Autores: 1
Instituciones: 1Universidade Federal de Minas Gerais, Instituto de Ciencias Exatas, Belo Horizonte, Minas Gerais. Brasil
Año:
Periodo: Feb
Volumen: 29
Número: N
Paginación: 100-104
País: Brasil
Idioma: Portugués
Tipo de documento: Artículo
Enfoque: Experimental, aplicado
Resumen en inglés Bioactive glasses undergo corrosion with leaching of alkaline ions when exposed to body fluids. This results in the spontaneous formation of a layer of hydroxyapatite (HA), the mineral component of natural bone, which in turn can induce bone growth in vivo. This paper describes the different types of bioactive glasses, the characterization methods currently used, and the main factors that influence their bioactivity. Nucleation and crystallization, the main mechanisms involved in the formation of hydroxyapatite, Ca10(PO4)6(OH)2, are discussed as a function of the chemical composition and the reactivity of the surface of the material. Finally, promising applications are considered
Disciplinas: Química,
Medicina
Palabras clave: Traumatología y ortopedia,
Biomedicina,
Sol-gel,
Vidrio bioactivo,
Reparación ósea
Keyword: Chemistry,
Medicine,
Traumatology and orthopedics,
Biomedicine,
Sol-gel,
Bioactive glass,
Bone repair
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