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In Vitro Bioactivity of Surface-Modified β-Ti Alloy for Biomedical Applications

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Abstract

Ti-15Mo (β-Ti) alloy was subjected to chemical followed by thermal treatment for the enhancement of in vitro bioactivity and corrosion resistance. The surface-modified specimens were characterized using scanning electron microscopy (SEM) and energy dispersive x-ray analysis (EDAX). The results indicated the formation of nanoporous layer and flake-like structure developed during chemical and subsequent thermal treatments. The in vitro bioactivity of the surface-treated β-Ti alloy was evaluated by immersing in simulated body fluid (SBF) solution. The formation of apatite particles was confirmed using Fourier transform-infrared spectroscopy, SEM, and EDAX analyses. Moreover, the electrochemical behavior of surface-modified specimens in SBF solution was evaluated using potentiodynamic polarization and electrochemical impedance spectroscopy. The results revealed that the surface-modified specimens exhibited higher potential value and lower current density when compared to untreated specimen. The EIS studies showed the formation of new layer, indicating the growth of apatite-like particles.

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Acknowledgment

The authors acknowledge the Indian Council for Medical Research (ICMR), New Delhi for their financial support.

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Authors and Affiliations

  1. Department of Chemistry, Anna University, Chennai, 600 025, India

    Y. Sasikumar, M. Karthega & N. Rajendran

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  1. Y. Sasikumar
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  2. M. Karthega
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  3. N. Rajendran
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Correspondence to N. Rajendran.

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Sasikumar, Y., Karthega, M. & Rajendran, N. In Vitro Bioactivity of Surface-Modified β-Ti Alloy for Biomedical Applications. J. of Materi Eng and Perform 20, 1271–1277 (2011). https://doi.org/10.1007/s11665-010-9772-4

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  • DOI: https://doi.org/10.1007/s11665-010-9772-4

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