In vitro apatite formation on porous anodic alumina induced by a phosphorylation treatment.
J Biomater Appl
; 29(3): 321-8, 2014 Sep.
Article
em En
| MEDLINE
| ID: mdl-24598060
ABSTRACT
In this study, a phosphorylation treatment of porous anodic alumina (PAA) was performed by wet impregnation in phosphoric acid and a subsequent heat treatment. The PAA and phosphorylated PAA specimens were analyzed using a field emission scanning electron microscope, an energy-dispersive X-ray spectrometer, and Fourier transform infrared spectroscopy. The apatite-forming ability of the phosphorylated PAA was evaluated by soaking the specimens in simulated body fluid for 1, 3, and 7 days. The surface microstructures and chemical property changes after soaking in simulated body fluid were again characterized by field emission scanning electron microscope, energy-dispersive X-ray spectrometer, and Fourier transform infrared spectroscopy. Results of this study demonstrated that the functional -PO4 groups introduced onto the PAA surface dramatically promoted the deposition of bone-like apatite on PAA. The results from this study indicated that the phosphorylation treatment of anodic alumina is an effective method for inducing bone-like apatite formation, and this phosphorylated PAA can be a promising candidate to be used as bioactive surface coatings on implant metals and alloys for orthopedic and dental applications.
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Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Apatitas
/
Eletrodos
/
Óxido de Alumínio
Idioma:
En
Revista:
J Biomater Appl
Assunto da revista:
ENGENHARIA BIOMEDICA
Ano de publicação:
2014
Tipo de documento:
Article