（1. National Engineering Research Center for Magnesium Alloys, Chongqing University, Chongqing 400044, China） (2. College of Materials Science and Engineering, Chongqing University, Chongqing 400045, China）
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Abstract:
The potentialities of magnesium in biodegradable biomaterial field have caused great interests recently. Surface modification is an important method to control the degradation rate and improve the biological activity of magnesium based materials. The latest research progress in surface modification of magnesium based materials and the biocompatibility of modified materials are reviewed, and the characteristics and research focus of various modification methods are described. The future research direction and the prospects of magnesium based biomaterials are also put forward.