Improved cytocompatibility of Mg-1Ca alloy modified by Zn ion implantation and deposition

Improved cytocompatibility of Mg-1Ca alloy modified by Zn ion implantation and deposition
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Zn离子注入和沉积改善Mg-1Ca合金的细胞相容性

DOI:
10.1016/j.matlet.2017.06.055
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发表时间:
2017-10
期刊:
影响因子:
3
通讯作者:
Zheng Yufeng
Zheng Yufeng
中科院分区:
材料科学3区
文献类型:
--
作者:
Liu Jiao;Zheng Yang;Bi Yanze;Li Yan;Zheng Yufeng

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采用金属蒸气真空弧等离子体源(MEVVA)对Mg-1Ca合金进行了Zn离子注入和沉积(II&D)改性。研究了其表面特性、腐蚀行为和细胞相容性。俄歇电子能谱(AES)结果表明,Mg-1Ca合金表面形成了均匀的ZnO层。电化学测试结果表明,Zn改性后的Mg-1Ca合金在模拟体液(SBF)中的腐蚀电位有所提高,腐蚀电流密度也有较大幅度的提高。间接细胞活性评价和直接细胞培养结果表明,Mg-1Ca合金表面的ZnO层提高了MC 3 T3-E1细胞的细胞相容性。
The Mg-1Ca alloy has been modified by Zn ion implantation and deposition (II&D) using metal vapor vacuum arc plasma source (MEVVA). The surface characteristics, corrosion behavior and cytocompatibility were investigated. The auger electron spectroscopy (AES) results showed that a uniform ZnO layer was formed on the surface of Mg-1Ca alloy. The electrochemical measurements revealed that the corrosion potential has been increased, and a comparable corrosion current density in the simulated body fluid (SBF) was obtained for the Zn-modified Mg-1Ca alloy. The indirect cell viability evaluation and direct cell culture results indicated that the cytocompatibility of MC3T3-E1 cells on the Mg-1Ca alloy was improved by the ZnO layer on the surface.
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