Abstract
Multi-layer coatings (composed of outer hydroxyapatite and inner titania layers) have been synthesized on Ti6Al4V alloy for biomedical applications by employing micro-arc oxidation at positive and negative voltages of 400 and 80, respectively. Addition of silver nitrate (at concentrations of 0.1 g/L and 0.4 g/L) into the calcium acetate hydrate and disodium hydrogen phosphate anhydrous containing base electrolyte provided an enhancement in bio- and antibacterial activities of the synthesized coating, while imposing precipitation of silver nanoparticles on the hydroxyapatite layer. It is finally concluded that addition of 0.1 g/L AgNO3 into the base electrolyte is promising for MAO process of titanium-based implants, when the structural characteristics and risk of cytotoxicity are of concern for the synthesized multi-layer coatings.
Original language | English |
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Pages (from-to) | 308-315 |
Number of pages | 8 |
Journal | Surface and Coatings Technology |
Volume | 307 |
DOIs | |
Publication status | Published - 15 Dec 2016 |
Bibliographical note
Publisher Copyright:© 2016
Funding
The authors gratefully acknowledge the financial support of Istanbul Technical University (ITU) through ITU-BAP Grant #33550 and European Cooperation in Science and Technology (COST) Project #MP1005 .
Funders | Funder number |
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ITU-BAP | 33550 |
European Cooperation in Science and Technology | |
Istanbul Teknik Üniversitesi |
Keywords
- Antibacterial
- Hydroxyapatite
- Micro-arc oxidation
- Multi-layer coating
- Silver
- Ti6Al4V
- Titania