Comparison of crystallinity between natural hydroxyapatite and synthetic cp-Ti /HA coatings
Título del documento: Comparison of crystallinity between natural hydroxyapatite and synthetic cp-Ti /HA coatings
Revista: Materials research
Base de datos: PERIÓDICA
Número de sistema: 000312830
ISSN: 1516-1439
Autores: 1
Instituciones: 1Universidade Estadual Paulista "Julio de Mesquita Filho", Instituto de Quimica, Araraquara, Sao Paulo. Brasil
Año:
Periodo: Abr-Jun
Volumen: 8
Número: 2
Paginación: 207-211
País: Brasil
Idioma: Inglés
Tipo de documento: Nota breve o noticia
Enfoque: Experimental
Resumen en inglés Commercial purity titanium (cp-Ti), and some of its alloys are important materials in the medical field because of their excellent biocompatibility and mechanical properties. Recently a simple chemical method to induce bioactivity in these inert metallic materials was reported. In this work, the biomimetic chemical process has been used to modify the surface of cp-Ti with the formation of a deposit layer of apatite (a calcium phosphate compound). The main purpose was to study the influence of heat treatment on changes in crystallinity in the deposited phases. X-ray diffraction analysis and scanning electron microscopy showed that the apatite coatings heat treated between 400 and 600 °C were less crystalline, similar to biological apatites. Upon heat treatment at temperatures above 700 °C, the apatite coatings appeared more crystalline, and were a mixture of hydroxyapatite, octacalcium phosphate and magnesium phosphate
Disciplinas: Ingeniería,
Química,
Medicina
Palabras clave: Ingeniería de materiales,
Química analítica,
Medicina general y familiar,
Biomateriales,
Titanio,
Biocompatibilidad,
Hidroxiapatita,
Propiedades mecánicas
Keyword: Engineering,
Chemistry,
Medicine,
Materials engineering,
Analytical chemistry,
General practice and family health,
Biomaterials,
Titanium,
Biocompatibility,
Hydroxyapatite,
Mechanical properties
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