A Critical Review on Metallic Glasses as Structural Materials for Cardiovascular Stent Applications

Journal of Functional Biomaterials
Mehdi Jafary-ZadehFangsen Cui

Abstract

Functional and mechanical properties of novel biomaterials must be carefully evaluated to guarantee long-term biocompatibility and structural integrity of implantable medical devices. Owing to the combination of metallic bonding and amorphous structure, metallic glasses (MGs) exhibit extraordinary properties superior to conventional crystalline metallic alloys, placing them at the frontier of biomaterials research. MGs have potential to improve corrosion resistance, biocompatibility, strength, and longevity of biomedical implants, and hence are promising materials for cardiovascular stent applications. Nevertheless, while functional properties and biocompatibility of MGs have been widely investigated and validated, a solid understanding of their mechanical performance during different stages in stent applications is still scarce. In this review, we provide a brief, yet comprehensive account on the general aspects of MGs regarding their formation, processing, structure, mechanical, and chemical properties. More specifically, we focus on the additive manufacturing (AM) of MGs, their outstanding high strength and resilience, and their fatigue properties. The interconnection between processing, structure and mechanical behaviour of...Continue Reading

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Citations

Jul 29, 2020·Nature Materials·Xuefeng WangBoryann Liaw
Mar 22, 2019·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Gideon Praveen KumarMehdi Jafary-Zadeh
Apr 14, 2020·Materials Science & Engineering. C, Materials for Biological Applications·Sin-Mao SongChih-Hwa Chen
Jun 3, 2021·Materials·Alexandru Scafa UdrișteElisabeta Bădilă

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Methods Mentioned

BETA
electron
electron diffraction
transmission electron microscopy

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