Premium
Multilayered electrospun fibrous meshes for restenosis‐suppressing metallic stents
Author(s) -
Son Young Ju,
Kim Hye Sung,
Choi Dong Hoon,
Yoo Hyuk Sang
Publication year - 2017
Publication title -
journal of biomedical materials research part b: applied biomaterials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.665
H-Index - 108
eISSN - 1552-4981
pISSN - 1552-4973
DOI - 10.1002/jbm.b.33583
Subject(s) - polygon mesh , materials science , restenosis , electrospinning , metal , biomedical engineering , composite material , stent , metallurgy , radiology , medicine , computer science , polymer , computer graphics (images)
Nanofiber is a flexible and highly porous mesh that is advantageous for coating bare metal stent and local drug delivery. Herein, we developed drug‐eluting stent coated with PCL/PU blending coaxial nanofiber for controlling drug release manner and suppressing in‐stent restenosis, which is a representative side effect of stenting surgery. The shell of coaxial electrospun nanofibrous are composed of poly (ε‐caprolactone) (PCL) and polyurethane (PU) for biodegradability and elasticity to the polymeric coating of stent. Paclitaxel (PTX) is loaded into both the core and shell through electrospinning using coaxial nozzle with different weight ratio. The morphology of nanofiber‐coated stent, expansion state, and core/shell structure of nanofiber were visualized by scanning electron microscope and transmission electron microscope. As more amount of PCL/PU was infused from the outer nozzle, PTX release speed from the nanofiber was increased. And PTX suppressed L6 cell proliferation in vitro expecting potential possibility of PTX‐loaded coaxial nanofiber as a drug‐eluting stent coating material. © 2015 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 105B: 628–635, 2017.