Graphitic carbon in a nanostructured titanium oxycarbide thin film to improve implant osseointegration.
Mater Sci Eng C Mater Biol Appl
; 46: 409-16, 2015 Jan.
Article
en En
| MEDLINE
| ID: mdl-25492005
ABSTRACT
A nanostructured coating layer on titanium implants, able to improve their integration into bones and to protect against the harsh conditions of body fluids, was obtained by Ion Plating Plasma Assisted, a method suitable for industrial applications. A titanium carbide target was attached under vacuum to a magnetron sputtering source powered with a direct current in the 500-1100 W range, and a 100 W radio frequency was applied to the sample holder. The samples produced at 900 W gave the best biological response in terms of overexpression of some genes of proteins involved in bone turnover. We report the characterization of a reference and of an implant sample, both obtained at 900 W. Different micro/nanoscopic techniques evidenced the morphology of the substrates, and X-ray Photoelectron Spectroscopy was used to disclose the surface composition. The layer is a 500 nm thick hard nanostructure, composed of 60% graphitic carbon clustered with 15% TiC and 25% Ti oxides.
Texto completo:
1
Base de datos:
MEDLINE
Asunto principal:
Prótesis e Implantes
/
Titanio
/
Carbono
/
Oseointegración
/
Nanoestructuras
/
Grafito
Límite:
Humans
Idioma:
En
Revista:
Mater Sci Eng C Mater Biol Appl
Año:
2015
Tipo del documento:
Article