Journal
JOURNAL OF MAGNESIUM AND ALLOYS
Volume 11, Issue 9, Pages 3012-3037Publisher
KEAI PUBLISHING LTD
DOI: 10.1016/j.jma.2023.07.020
Keywords
Mg alloy micro-tube; Biodegradable Mg stent; Alloying design; Structural design; Functional properties
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This review examines the recent development of biodegradable magnesium alloys for cardiovascular stents. Through bibliometric analysis, different biodegradable magnesium alloy systems are analyzed. The study highlights structural design strategies for reducing stress concentration in magnesium alloy stents, as well as surface modification methods to control corrosion behavior and biological performance. Finally, the potential directions and challenges of biodegradable magnesium stents in the cardiovascular field are discussed.
Biodegradable magnesium (Mg) alloys are expected to be promising materials for cardiovascular stents (CVS), which can avoid the long-term clinical problems of current CVS, such as in-stent restenosis, late stent thrombosis, etc. Mg alloy stents exhibit superior biocompatibility and tunable biodegradability, compared with conventional permanent metallic stents. However, the poor formability and non-uniform corrosion of Mg alloy stents hinder their clinical application of CVS. This review focuses on the development of Mg alloys for CVS in recent years. According to the results of bibliometric analysis, we analyzed different biodegradable Mg alloy systems. Moreover, the structural design strategies for Mg alloy stents that can reduce the stress concentration, as well as the surface modification methods to control the corrosion behavior and biological performance of Mg alloy stents are also highlighted. At last, this review systematically discussed the potential directions and challenges of biodegradable magnesium stents (BMgS) in cardiovascular fields.(c) 2023 Chongqing University. Publishing services provided by Elsevier B.V. on behalf of KeAi Communications Co. Ltd. This is an open access article under the CC BY-NC-ND license ( http://creativecommons.org/licenses/by-nc-nd/4.0/ ) Peer review under responsibility of Chongqing University
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