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In vitro corrosion behavior, bioactivity, and antibacterial performance of the silver-doped zinc oxide coating on magnesium alloy

Bakhsheshi-Rad, H. R. and Hamzah, E. and Ismail, A. F. and Aziz, M. and Kasiri-Asgarani, M. and Ghayour, H. and Razzaghi, M. and Hadisi, Z. (2017) In vitro corrosion behavior, bioactivity, and antibacterial performance of the silver-doped zinc oxide coating on magnesium alloy. Materials and Corrosion, 68 (11). pp. 1228-1236. ISSN 0947-5117

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Abstract

In this paper, nanostructured silver-doped zinc oxide (Ag-ZnO) coating was prepared on Mg-2Ca-0.5Mn-6Zn alloy surface with improved corrosion resistance and antibacterial activity through physical vapor deposition (PVD). Microstructural analysis showed that the Ag-ZnO coating was adherent to the substrate with a thickness and particle size of 1 µm and 85 nm, respectively. The nanostructured Ag-ZnO coated specimens exhibited lower corrosion current density (icorr), and higher charge-transfer resistance (Rct) compared with the uncoated Mg alloy. Antimicrobial examination demonstrated that the Ag-ZnO coated specimen revealed a significantly better antimicrobial performance toward Escherichia coli and Staphylococcus aureus compared to the uncoated sample. The results also showed that the Ag-ZnO coating considerably reduces the corrosion rate and improves antimicrobial performance of the Mg alloy substrate.

Item Type:Article
Uncontrolled Keywords:biomedical application, scorrosion behavior
Subjects:T Technology > TP Chemical technology
Divisions:Chemical Engineering
ID Code:76915
Deposited By: Fazli Masari
Deposited On:31 May 2018 17:31
Last Modified:31 May 2018 17:31

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