Microstructure-modified biodegradable magnesium alloy for promoting cytocompatibility and wound healing in vitro
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- 作者：Da-Jun Lin ; Fei-Yi Hung ; Ming-Long Yeh…
- 刊名：Journal of Materials Science Materials in Medicine
- 出版年：2015
- 出版时间：October 2015
- 年：2015
- 卷：26
- 期：10
- 全文大小：3,366 KB
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Fei-Yi Hung (1)
Ming-Long Yeh (2)
Truan-Sheng Lui (1)
1. Department of Materials Science and Engineering, National Cheng Kung University, Tainan, 701, Taiwan
2. Department of Biomedical Engineering, National Cheng Kung University, Tainan, 701, Taiwan - 刊物类别：Chemistry and Materials Science
- 刊物主题：Chemistry
Biomaterials
Characterization and Evaluation Materials
Polymer Sciences
Metallic Materials
Ceramics,Glass,Composites,Natural Materials
Surfaces and Interfaces and Thin Films - 出版者：Springer Netherlands
- ISSN：1573-4838
文摘
The microstructure of biomedical magnesium alloys has great influence on anti-corrosion performance and biocompatibility. In practical application and for the purpose of microstructure modification, heat treatments were chosen to provide widely varying microstructures. The aim of the present work was to investigate the influence of the microstructural parameters of an Al-free Mg–Zn–Zr alloy (ZK60), and the corresponding heat-treatment-modified microstructures on the resultant corrosion resistance and biological performance. Significant enhancement in corrosion resistance was obtained in Al-free Mg–Zn–Zr alloy (ZK60) through 400 °C solid-solution heat treatment. It was found that the optimal condition of solid-solution treatment homogenized the matrix and eliminated internal defects; after which, the problem of unfavorable corrosion behavior was improved. Further, it was also found that the Mg ion-release concentration from the modified ZK60 significantly induced the cellular activity of fibroblast cells, revealing in high viability value and migration ability. The experimental evidence suggests that this system can further accelerate wound healing. From the perspective of specific biomedical applications, this research result suggests that the heat treatment should be applied in order to improve the biological performance.