Biocorrosion studies of TiO2 nanoparticle-coated Ti–6Al–4V implant in simulated biofluids

The corrosion behaviors of the TiO 2 nanoparticles coated bioimplant Ti–6Al–4V exposed to three different simulated biofluids (SBF), namely, (1) NaCl solution, (2) Hank’s solution, and (3) Cigada solution, were studied by using micro-Raman spectroscopy, electrochemical techniques, and scanning elect...

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Bibliographic Details
Published in:Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology 2010-06, Vol.12 (5), p.1609-1623
Main Authors: Zaveri, Nikita, McEwen, Gerald D., Karpagavalli, Ramji, Zhou, Anhong
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Chemistry and Materials Science
Corrosion
Electrochemistry
Inorganic Chemistry
Lasers
Materials Science
Nanoparticles
Nanotechnology
Optical Devices
Optics
Photonics
Physical Chemistry
Research Paper
Sodium chloride
Titanium dioxide
X-ray spectroscopy
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Summary:The corrosion behaviors of the TiO 2 nanoparticles coated bioimplant Ti–6Al–4V exposed to three different simulated biofluids (SBF), namely, (1) NaCl solution, (2) Hank’s solution, and (3) Cigada solution, were studied by using micro-Raman spectroscopy, electrochemical techniques, and scanning electron microscopy (SEM) with energy dispersive X-ray spectroscopy (EDS). The different electrochemical impedance spectroscopy models were applied to fit the data obtained from the implants before and after the coating of TiO 2 nanoparticles (50–100 nm). It was found that the TiO 2 nanoparticle coatings increased the thickness of the pre-existing oxide layer on the Ti–6Al–4V surface, serving to improve the bioimplant corrosion resistance.
ISSN:1388-0764
1572-896X
DOI:10.1007/s11051-009-9699-6