Current status and future direction of metallic and polymeric materials for advanced vascular stents

Seung Hyuk Im, Dam Hyeok Im, Su Jeong Park, Youngmee Jung, Dong Hwee Kim, Soo Hyun Kim

Research output: Contribution to journalReview articlepeer-review

29 Citations (Scopus)


Cardiovascular disease (CVD) has emerged as a severe illness worldwide. Currently, the top ten causes of death in the world include ischemic heart disease according to the Global Health Observatory data provided by the World Health Organization (WHO). To treat the CVD, percutaneous coronary intervention (PCI) has been used in clinical treatment. Unfortunately, CVD is still considered a serious illness for human health, even though the mortality due to CVD has reduced compared to the time before the availability of PCI procedure. Since the implantation of the bare-metal stent in humans as the first-generation stent, drug-eluting and biodegradable stents have been developed as the second- and third-generation stents to address the drawbacks of previously developed stents. Currently, various types of stents with different geometries, structures, backbone materials, and other properties have been developed, but identifying the best stent for superior clinical efficacy is still difficult. To address this issue, this review classifies the vascular stents according to four types of scaffold materials: non-degradable metal, degradable metal, non-degradable polymer, and degradable polymer. Additionally, majority of the vascular stents with various merits and demerits that have been developed till date are discussed with focus on the critical requirements for next-generation stents.

Original languageEnglish
Article number100922
JournalProgress in Materials Science
Publication statusPublished - 2022 May

Bibliographical note

Funding Information:
This work was supported by the Ministry of Trade, Industry and Energy, Republic of Korea (project number 20008686), as well as the KIST Institutional Program and the KU-KIST Graduate School of Converging Science and Technology Program.

Publisher Copyright:
© 2022 The Authors


  • Biodegradable stent
  • Coronary artery disease
  • Drug-eluting stent
  • Metallic stent
  • Next-generation stents
  • Polymeric stent

ASJC Scopus subject areas

  • General Materials Science


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