【摘 要】
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UV-induced graft polymerization of acrylic acid(AA)on poly(ether ether ketone)(PEEK)films was carried out to introduce-COOH for the subsequent immobilization of
【机 构】
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School of Materials Science and Mechanical Engineering
论文部分内容阅读
UV-induced graft polymerization of acrylic acid(AA)on poly(ether ether ketone)(PEEK)films was carried out to introduce-COOH for the subsequent immobilization of bovine serum albumin(BSA).BSA was introduced on PEEK surface based on the condensation reaction between-NH2 and-COOH.The modified surface (PEEK-BSA)was characterized by energy-disperse spectrometry(EDS),X-ray photoelectron spectroscopy(XPS),water contact angle measurement and UV spectrum analysis.The contact angle was found to decrease from 104° for the virgin PEEK films to 63° for the BSA-immobilized PEEK films,demonstrating a significant improvement of surface hydrophilicity.Moreover,the appearance of nitrogen on PEEK film confirmed by XPS and EDS indicates the immobilization of BSA on PEEK surface.
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