Biodegradation, Antibacterial Performance, and Cytocompatibility of a Novel ZK30-Cu-Mn Biomedical Alloy Produced by Selective Laser Melting

Bin Xie, Ming-Chun Zhao, Rong Xu, Ying-Chao Zhao, Deng-Feng Yin, Chengde Gao, Andrej Atrens

Article ID: 300
Vol 7, Issue 1, 2021, Article identifier:

VIEWS - 156 (Abstract) 23 (PDF)

In Press, Corrected proof, Published online October 30, 2020

Abstract


An antibacterial biomedical Mg alloy was designed to have a low biodegradation rate. ZK30-0.2Cu-xMn (x = 0, 0.4, 0.8, 1.2, and 1.6 wt.%) was produced by selective laser melting (SLM). Alloying with Mn had a significant influence on the grain size, hardness, and biodegradation rate. Increasing Mg content to 0.8 wt% decreased the biodegradation rate, attributed to the decreased grain size and the relatively protective manganese surface oxide layer. Higher Mn contents increased the biodegradation rate attributed to the presence of the Mn-rich particles. ZK30-0.2Cu-0.8Mn exhibited the lowest biodegradation rate, strong antibacterial performance and good cytocompatibility.


Keywords


Magnesium alloy; Selective laser melting; Biodegradation; Antibacterial activity; Grain refinement

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References


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DOI: http://dx.doi.org/10.18063/ijb.v7i1.300

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Copyright (c) 2020 Bin Xie, Ming-Chun Zhao, Rong Xu, Ying-Chao Zhao, Deng-Feng Yin, Chengde Gao, Andrej Atrens

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