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Calcium Phosphate Growth at Electropolished Titanium Surfaces
School of Engineering and Materials Science, University of London, Queen Mary, London E1 4NS, UK
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; in revised form: 21 March 2012 / Accepted: 11 April 2012 / Published: 25 April 2012
Abstract: 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
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Ajami, E.; Aguey-Zinsou, K.-F. Calcium Phosphate Growth at Electropolished Titanium Surfaces. J. Funct. Biomater. 2012, 3, 327-348.
Ajami E, Aguey-Zinsou K-F. Calcium Phosphate Growth at Electropolished Titanium Surfaces. Journal of Functional Biomaterials. 2012; 3(2):327-348.
Ajami, Elnaz; Aguey-Zinsou, Kondo-Francois. 2012. "Calcium Phosphate Growth at Electropolished Titanium Surfaces." J. Funct. Biomater. 3, no. 2: 327-348.