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Volume 15
Issue 2
10.3390/coatings15020191
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Review

Surface Engineering of Biodegradable Magnesium Alloys as Orthopedic Implant Materials: Recent Developments and Future Prospects

by
Hualong Chen
1,2,
Yu Wang
3,*,
Liang He
4,
Xiaoyi Zhang
1,
Yanan Mei
1,
Tong Wu
1,
Jia Wang
5,
Yu Zheng
1,* and
Hui Tang
1,*
1
School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China
2
Chengdu Seekon Microwave Communications Co., Ltd., Chengdu 610213, China
3
Nuclear Power Institute of China, No. 328, 1ST Section, Changshun Avenue, Shuangliu District, Chengdu 610213, China
4
State Key Laboratory of Intelligent Construction and Healthy Operation and Maintenance of Deep Underground Engineering, School of Mechanical Engineering, Sichuan University, Chengdu 610065, China
5
University of Electronic Science and Technology of China Hospital, Chengdu 611731, China
*
Authors to whom correspondence should be addressed.
Coatings 2025, 15(2), 191; https://doi.org/10.3390/coatings15020191
Submission received: 5 January 2025 / Revised: 24 January 2025 / Accepted: 4 February 2025 / Published: 6 February 2025
(This article belongs to the Special Issue Synthesis and Applications of Bioactive Coatings)
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Abstract

Magnesium and its alloys are widely used for bone fixation and repair due to their biodegradability. However, their application is limited due to their poor corrosion resistance and rapid degradation rate in the human body. Surface engineering represents an effective approach to modifying the degradation characteristics of magnesium alloys to meet the requirements of biological systems. Constructing bioactive coatings on the surface of substrates is essential to improve their biocompatibility and corrosion resistance, representing an effective method of surface modification. This review summarizes the current research on the construction of bioactive coatings on magnesium and its alloys, including inorganic coatings, polymer coatings, and composite coatings, which presents an analysis of their respective research statuses. Furthermore, this review discusses the future developments of biodegradable magnesium and its alloy systems, focusing on achieving satisfactory specifications for clinical trials and implementation. Its goal is to provide critical insights to materials scientists and clinical practitioners involved in the development of applicable biodegradable magnesium alloys.
Keywords: magnesium alloy; coating; corrosion resistance; biocompatibility magnesium alloy; coating; corrosion resistance; biocompatibility

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MDPI and ACS Style

Chen, H.; Wang, Y.; He, L.; Zhang, X.; Mei, Y.; Wu, T.; Wang, J.; Zheng, Y.; Tang, H. Surface Engineering of Biodegradable Magnesium Alloys as Orthopedic Implant Materials: Recent Developments and Future Prospects. Coatings 2025, 15, 191. https://doi.org/10.3390/coatings15020191

AMA Style

Chen H, Wang Y, He L, Zhang X, Mei Y, Wu T, Wang J, Zheng Y, Tang H. Surface Engineering of Biodegradable Magnesium Alloys as Orthopedic Implant Materials: Recent Developments and Future Prospects. Coatings. 2025; 15(2):191. https://doi.org/10.3390/coatings15020191

Chicago/Turabian Style

Chen, Hualong, Yu Wang, Liang He, Xiaoyi Zhang, Yanan Mei, Tong Wu, Jia Wang, Yu Zheng, and Hui Tang. 2025. "Surface Engineering of Biodegradable Magnesium Alloys as Orthopedic Implant Materials: Recent Developments and Future Prospects" Coatings 15, no. 2: 191. https://doi.org/10.3390/coatings15020191

APA Style

Chen, H., Wang, Y., He, L., Zhang, X., Mei, Y., Wu, T., Wang, J., Zheng, Y., & Tang, H. (2025). Surface Engineering of Biodegradable Magnesium Alloys as Orthopedic Implant Materials: Recent Developments and Future Prospects. Coatings, 15(2), 191. https://doi.org/10.3390/coatings15020191

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