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J. Funct. Biomater. 2012, 3(2), 327-348; doi:10.3390/jfb3020327

Calcium Phosphate Growth at Electropolished Titanium Surfaces

1,*  and 2
1 School of Engineering and Materials Science, University of London, Queen Mary, London E1 4NS, UK 2 School of Chemical Engineering, The University of New South Wales, Sydney NSW 2052, Australia
* Author to whom correspondence should be addressed.
Received: 7 February 2012 / Revised: 21 March 2012 / Accepted: 11 April 2012 / Published: 25 April 2012
(This article belongs to the Special Issue Biocompatibility of Biomaterials)
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This work investigated the ability of electropolished Ti surface to induce Hydroxyapatite (HA) nucleation and growth in vitro via a biomimetic method in Simulated Body Fluid (SBF). The HA induction ability of Ti surface upon electropolishing was compared to that of Ti substrates modified with common chemical methods including alkali, acidic and hydrogen peroxide treatments. Our results revealed the excellent ability of electropolished Ti surfaces in inducing the formation of bone-like HA at the Ti/SBF interface. The chemical composition, crystallinity and thickness of the HA coating obtained on the electropolished Ti surface was found to be comparable to that achieved on the surface of alkali treated Ti substrate, one of the most effective and popular chemical treatments. The surface characteristics of electropolished Ti contributing to HA growth were discussed thoroughly.
Keywords: surface treatment; electropolishing; titanium; hydroxyapatite; biomimetic; biomaterial surface treatment; electropolishing; titanium; hydroxyapatite; biomimetic;  biomaterial
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


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Ajami, E.; Aguey-Zinsou, K.-F. Calcium Phosphate Growth at Electropolished Titanium Surfaces. J. Funct. Biomater. 2012, 3, 327-348.

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J. Funct. Biomater. EISSN 2079-4983 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert