MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
ISSN-L : 1345-9678
Immobilized Heparin onto TiNi Shape Memory Alloy Modified with Acrylamide by UV-Induced Grafting
Chien-Hui ChenMu-Rong YangShyi-Kaan Wu
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2007 Volume 48 Issue 3 Pages 348-351

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Abstract

SiC:H organic-like thin films are deposited on Ti50Ni50 shape memory alloy by DC-pulsed plasma enhanced chemical vapor deposition (PECVD) in the gas mixture of Hexamethyldisilazane (HMDSN) and Ar at room temperature. The organic-like thin films containing peroxides or free radicals can be successfully grafted with hydrophilic polymer acrylamide (AAm) by UV-induced grafting polymerization. After grafting, a new dense organic and slippery surface with low friction coefficient is obtained. Heparin is finally immobilized onto grafted-AAm thin films to take TiNi SMA into the anti-thrombin biomaterials.

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© 2007 The Japan Institute of Metals and Materials
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