A novel nano hydroxyapatite-incorporated Ni–P coating as an effective inter layer for biological applications

Article

Abstract

Hydroxyapatite (HA) coatings are normally made directly on orthopaedic implants and they possess many demerits such as cracks, irregular phase composition and poor adhesion. The present study had a novel approach of providing a nano-HA and phosphorous-rich electroless nickel (EN) coating as an interlayer on stainless steel (SS) prior to electrodeposition of pure HA coating. The interlayer had the merits of having incorporated with nano HA with rich phosphorous content. The outermost HA coating had excellent adherence and it was found to be free from any defects since it was formed only on the interlayer and not on the direct substrate. The overall coating system revealed high bioactivity when immersed in simulated body fluid (SBF). The present study also highlights the scope of using cost effective SS as the implant substrate instead of titanium as against the current trend of substrate selection.

Keywords

Composite Coating Simulated Body Fluid Open Circuit Potential Phosphorous Content Stainless Steel Substrate 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

The authors are grateful to the Prof. & Head, Dept. of Chemistry, University of Kerala for his kind encouragement and for extending facilities to complete this work. They are also grateful to Kerala State Council for Science, Technology and Environment (KSCSTE), Govt. of Kerala for providing financial assistance.

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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  1. 1.Department of ChemistryUniversity of KeralaThiruvananthapuramIndia

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