In vitro corrosion behavior and cytocompatibility of pure Fe implanted with Ta

In vitro corrosion behavior and cytocompatibility of pure Fe implanted with Ta
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植入Ta的纯Fe的体外腐蚀行为和细胞相容性

DOI:
10.1016/j.surfcoat.2017.01.051
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发表时间:
2017-06
影响因子:
5.4
通讯作者:
Fu Yongqing
Fu Yongqing
中科院分区:
材料科学1区
文献类型:
--
作者:
Wang Henan;Zheng Yang;Jiang Chengbao;Li Yan;Fu Yongqing

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本研究采用不同剂量的离子注入对纯铁进行表面修饰。利用原子力显微镜和俄歇能谱对其表面形貌和化学成分进行了研究。结果表明:在注入层的最外层(厚度为60 ~ 80 nm)形成了Ta/Fe氧化物混合物;电化学测量和浸泡试验结果表明,注入Ta离子后,纯铁在模拟体液中的腐蚀速度加快。体外培养结果表明,离子注入后,成骨细胞对纯铁的细胞相容性明显改善。
In this study, pure Fe was surface-modified by Ta ion implantation with different incident ion doses. Its surface morphology and chemical composition were investigated using atomic force microscopy and auger electron spectroscopy. Results showed that Ta ion implantation led to the formation of Ta/Fe oxide mixtures at the outmost surface (60–80 nm in thickness) of the implanted layer. Results from electrochemical measurements and immersion tests indicated that the corrosion rate of the pure Fe in simulated body fluids can be accelerated after the Ta ion implantation. Thein vitrocell culture results showed that the cytocompatibility of osteoblasts on the pure Fe has been significantly improved by applying the Ta ion implantation.
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