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	Corrosion resistance and cytocompatibility of biodegradable surgical magnesium alloy coated with hydrogenated amorphous silicon
	Xin, Yunchang ; Jiang, Jiang ; Huo, Kaifu ; Tang, Guoyi ; Tian, Xiubo ; Chu, Paul K.
	2010-10-12 ; 2010-10-12
关键词	magnesium alloy hydrogenated amorphous silicon coating corrosion resistance cytocompatibility IN-VIVO CORROSION FILM BEHAVIOR SURFACES CELLS DEPENDENCE DEPOSITION COMPOSITE IMPLANTS ADHESION Engineering, Biomedical Materials Science, Biomaterials
中文摘要	The fast degradation rates in the physiological environment constitute the main limitation for the applications of surgical magnesium alloys as biodegradable hard-tissue implants. In this work, a stable and dense hydrogenated amorphous silicon coating (a-Si:H) with desirable bioactivity is deposited on AZ91 magnesium alloy using magnetron sputtering deposition. Raman spectroscopy and Fourier transform infrared spectroscopy reveal that the coating is mainly composed of hydrogenated amorphous silicon. The hardness of the coated alloy is enhanced significantly and the coating is quite hydrophilic as well. Potentiodynamic polarization results show that the corrosion resistance of the coated alloy is enhanced dramatically. In addition, the deterioration process of the coating in simulated body fluids is systematically investigated by open circuit potential evolution and electrochemical impedance spectroscopy. The cytocompatibility of the coated Mg is evaluated for the first time using hFOB1.19 cells and favorable biocompatibility is observed. (C) 2008 Wiley Periodicals, Inc. J Biomed Mater Res 89A: 717-726, 2009
语种	英语 ; 英语
出版者	WILEY-LISS ; HOBOKEN ; DIV JOHN WILEY & SONS INC, 111 RIVER ST, HOBOKEN, NJ 07030 USA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/81708]
专题	清华大学
推荐引用方式 GB/T 7714	Xin, Yunchang,Jiang, Jiang,Huo, Kaifu,et al. Corrosion resistance and cytocompatibility of biodegradable surgical magnesium alloy coated with hydrogenated amorphous silicon[J],2010, 2010.
APA	Xin, Yunchang,Jiang, Jiang,Huo, Kaifu,Tang, Guoyi,Tian, Xiubo,&Chu, Paul K..(2010).Corrosion resistance and cytocompatibility of biodegradable surgical magnesium alloy coated with hydrogenated amorphous silicon..
MLA	Xin, Yunchang,et al."Corrosion resistance and cytocompatibility of biodegradable surgical magnesium alloy coated with hydrogenated amorphous silicon".(2010).

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