Optimizing and evaluating the biocompatibility of fiber composites with calcium phosphate additives.
Wien Med Wochenschr
; 161(19-20): 493-502, 2011 Oct.
Article
em En
| MEDLINE
| ID: mdl-21792522
ABSTRACT
Composite materials based on a polyamide fabric (aramid) and a polydymethylsiloxane (PDMS) matrix were designed for application in bone surgery. In order to increase the bioactivity, 2, 5, 10, 15, 20, and 25 vol.% of nano/micro hydroxyapatite (HA) and tricalcium phosphate (TCP) were added. We studied the effect of the additives on the biocompatibility of the composite. It appears that nano additives have a more favorable effect on mechanical properties than microparticles. 15 vol.% of nano hydroxyapatite additive is an optimum amount for final application of the composites as substitutes for bone tissue in this case both the mechanical properties and the biological properties are optimized without distinct changes in the inner structure of the composite.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Polímeros
/
Osso e Ossos
/
Teste de Materiais
/
Fosfatos de Cálcio
/
Durapatita
/
Substitutos Ósseos
/
Dimetilpolisiloxanos
/
Nylons
Limite:
Animals
/
Humans
Idioma:
En
Revista:
Wien Med Wochenschr
Assunto da revista:
MEDICINA
Ano de publicação:
2011
Tipo de documento:
Article
País de afiliação:
República Tcheca