Abstract
Hydroxyapatite (HAp) coatings on titanium (Ti) substrates have attracted much attention owing to the combination of good mechanical properties of Ti and superior biocompactibility. In this study, an electrochemical deposition of hydroxyapatite was carried out by incorporating collagen peptide and polypyrrole. The developed coatings were subjected for in vitro mineralization for bioactivity in 1.5 Kukubo’s simulated body fluid and the performance was compared with that of the HAp coating developed by electrochemical deposition process. XRD, FTIR, SEM-EDS and AFM were used to investigate the crystallinity, chemical composition, microstructural morphology and surface roughness of the nanocomposite coatings. Electrochemical characterization and surface potential change of the coatings were carried out by EIS, CV studies. Enhanced biogrowth and adhesion was facilitated on HAp/Collagen/Polypyrrole nanocomposite coatings on Ti substrate. In summary, a simple electrochemical treatment can be used to fabricate highly adhesive bioactive coatings on implants that can interact effectively in body environment.
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