In Vitro Corrosion And Biocompatibility Of Brushite/Hydroxyapatite Coatings Obtained By Galvanic Deposition On 316lss
JOURNAL OF THE ELECTROCHEMICAL SOCIETY(2018)
Abstract
Corrosion behavior and cytotoxicity was reported for mixed brushite (BS)/hydroxyapatite (HA) coatings deposited on 316LSS substrate through a displacement reaction. Corrosion tests, carried out in a simulated body fluid, showed that in comparison with bare 316L, coating shifts E-corr to anodic values and reduces i(corr) even if oscillations were observed, which were explained in terms of the chemical interactions at the solid/liquid interface. Cell biocompatibility of the coating was investigated through osteoblastic cell line MC3T3-E1, evidencing the absence of any cytotoxicity Taken together, the results show that galvanic deposition is a simple and cost-effective method for producing bioactive coatings which enhance corrosion resistance and biocompatibility of the substrate. (C) 2018 The Electrochemical Society.
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Key words
brushite/hydroxyapatite coatings,vitro corrosion,galvanic deposition
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