Growth and characterization of hydroxyapatite nanorice on TiO2 nanofibers

Type
Article

Authors
Chetibi, Loubna
Hamana, Djamel
Achour, Slimane

Date
2014-04

Abstract
Hydroxyapatite (HA) coating with nanoparticles like nanorice is fabricated on chemically pretreated titanium (Ti) surface, through an electrochemical deposition approach, for biomaterial applications. The Ti surface was chemically patterned with anatase TiO2 nanofibers. These nanofibers were prepared by in situ oxidation of Ti foils in a concentrated solution of H 2O2 and NaOH, followed by proton exchange and calcinations. Afterward, TiO2 nanofibers on Ti substrate were coated with HA nanoparticles like nanorice. The obtained samples were annealed at high temperature to produce inter diffusion between TiO2 and HA layers. The resultant layers were characterized by Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), X-ray Photoelectron Spectroscopy (XPS), X-ray Diffraction (XRD), Infrared Spectroscopy (FTIR), corrosion tests in SBF solution, and Electron Probe Micro Analysis (EPMA). It was found that only Ti from the titanium substrate diffuses into the HA coating and a good corrosion resistance in simulated body fluid was obtained. © 2014 Elsevier B.V. All rights reserved.

Citation
Chetibi L, Hamana D, Achour S (2014) Growth and characterization of hydroxyapatite nanorice on TiO2 nanofibers. Materials Chemistry and Physics 144: 301–309. Available: http://dx.doi.org/10.1016/j.matchemphys.2013.12.037.

Acknowledgements
The authors acknowledge C. Sahraoui from King Abdullah University of Science and Technology (KAUST) for his funding and assistance in analysis.

Publisher
Elsevier BV

Journal
Materials Chemistry and Physics

DOI
10.1016/j.matchemphys.2013.12.037

Permanent link to this record