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

被引：34

作者：

Bakhsheshi-Rad, Hamid R. ^{[1
]}

Hamzah, Esah ^{[2
]}

Ismail, Ahmad F. ^{[3
]}

Aziz, Madzlan ^{[3
,4
]}

Kasiri-Asgarani, Masoud ^{[1
]}

Ghayour, Hamid ^{[1
]}

Razzaghi, Mahmood ^{[1
]}

Hadisi, Zhina ^{[5
]}

机构：

[1] Islamic Azad Univ, Najafabad Branch, Dept Mat Engn, Adv Mat Res Ctr, Najafabad, Iran

[2] Univ Teknol Malaysia UTM, Dept Mat Mfg & Ind Engn, Fac Mech Engn, Johor Baharu 81310, Johor, Malaysia

[3] Univ Teknol Malaysia, Adv Membrane Technol Res Ctr AMTEC, Johor Baharu 81310, Johor, Malaysia

[4] Univ Teknol Malaysia, Fac Sci, Skudai 81310, Johor, Malaysia

[5] Univ Tehran, Fac New Sci & Technol, Biomat Grp, POB 14395-1561, Tehran, Iran

来源：

MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION | 2017年 / 68卷 / 11期

关键词：

antibacterial activity; biomedical applications; corrosion behavior; Mg-Ca-Mn-Zn alloy; PVD; MG-ZN; MICROSTRUCTURE; GROWTH; SIZE;

D O I：

10.1002/maco.201709597

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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 mu m and 85nm, respectively. The nanostructured Ag-ZnO coated specimens exhibited lower corrosion current density (i(corr)), and higher charge-transfer resistance (R-ct) 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.

引用

页码：1228 / 1236

页数：9

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