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Introduction
ABBA Lab
Contact us
Member
Professor
Student
Alumni
Research
3D Printing for hard tissue engineering
3D Printing for soft tissue engineering
Fabrication of porous scaffolds
Advanced surface modification
Publication
Journal
Patent
Board
News
Gallery
Lecture
ABBA Lab
Advanced Biomaterials for Biomedical Applications Lab
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> > > Biodegradable stents made of magnesium (Mg) and its alloys have been developed to minimize persistent inflammation or in-stent restenosis, which are the main problems for permanent stents. However, their rapid corrosion behavior under physiological conditions leads to poor vascular compatibility and premature structural failure, which remains an important unsolved clinical problem. Herein, we demonstrate a new strategy for solving this problem by combining poly (ether imide) (PEI) coating and subsequent tantalum (Ta) ion implantation. The PEI coating covers the whole surface of the Mg stent uniformly via a spray coating technique and provides Mg with superior corrosion resistance and stable sirolimus-carrying ability. Ta ion implantation is conducted by a sputtering-based plasma immersion ion implantation technique only onto the luminal surface of the PEI-coated Mg stent. Its extremely short processing … > >
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