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

Zaveri, Nikita and McEwen, Gerald D. and Karpagavalli, Ramji and Zhou, Anhong (2010) Biocorrosion studies of TiO2 nanoparticle-coated Ti–6Al–4V implant in simulated biofluids. Journal of Nanoparticle Research, 12 (5). pp. 1609-1623.

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The corrosion behaviors of the TiO2 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 TiO2 nanoparticles (50–100 nm). It was found that the TiO2 nanoparticle coatings increased the thickness of the pre-existing oxide layer on the Ti–6Al–4V surface, serving to improve the bioimplant corrosion resistance.

Item Type:Article
Uncontrolled Keywords:Ti–6Al–4V - Electrochemical impedance spectroscopy - Raman spectroscopy - TiO2 nanoparticle - Simulated biofluid - Nanomedicine
Subjects:Biomedical Science > Nanoscale biological processes
ID Code:9262
Deposited By:SPI
Deposited On:08 Jun 2010 17:55
Last Modified:08 Jun 2010 17:55

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