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논문 리스트

2019
Fabrication and Evaluation of Polyelectrolyte Complexes of Dextran Derivatives for Drug Coating of Coronary Stents Fabrication and Evaluation of Polyelectrolyte Complexes of Dextran Derivatives for Drug Coating of Coronary Stents
한국공업화학회
논문정보
Publisher
공업화학
Issue Date
2019-10-01
Keywords
-
Citation
-
Source
-
Journal Title
-
Volume
30
Number
5
Start Page
586
End Page
590
DOI
ISSN
12250112
Abstract
The aim of this study was to fabricate a dextran polyelectrolyte multi-layer on a bare metal stent (BMS) and to evaluate bio-physical properties of the layer. Diethylaminoethyl-dextran (DEAE-D) as a polycation and dextran sulfate (DS) as a polyanion were successively coated on the bare metal stent by a well-known layer-by-layer procedure. The morphology of the stent surface and its cell adhesion were studied after each coating step by scanning electron microscopy. The stent showed more blotched and slightly rougher morphology after dextran-DS coating. The contact angle of the DEAE-DS group (39.5 ± 0.15°) was significantly higher than that of the BMS group (45.16 ± 0.08°), indicating the improvement of hydrophilic. The SMC proliferation inhibition in the DEAE-DS-coated stent group (20.9 ± 0.04%) was stronger than that in the control group (21.7 ± 0.10% in DS-coated group only). The DEAE-DS coating is desired for stent coating materials with biocompatibility and anti-restenosis effect.

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