کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1429219 1509185 2014 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Hemocompatibility improvement of poly(ethylene terephthalate) via self-polymerization of dopamine and covalent graft of zwitterions
ترجمه فارسی عنوان
بهبود انسداد پلی (اتیلن ترفتالات) از طریق خودپلیمانیزاسیون دوپامین و پیوند کوانتومی زویتیون ها
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد بیومتریال
چکیده انگلیسی


• We first used self-polymerized dopamine to form a thin and surface-adherent polydopamine layer onto PET film.
• Then, DMDA was attached to the PET surface by Michael addition.
• Sulfobetaine and carboxybetaine were finally constructed through ring-opening reaction.
• The modify PET endowed with improved resistance to nonspecific protein adsorption and platelet adhesion.

Poly (ethylene terephthalate) (PET) has been widely adopted as a scaffold biomaterial, but further hemocompatibility improvement is still needed for wide biomedical applications. Inspired by the composition of adhesive proteins in mussels, we propose to use self-polymerized dopamine to form a surface-adherent polydopamine layer onto PET sheet, followed by Michael addition with N,N-dimethylethylenediamine (DMDA) to build tertiary amine, and final zwitterions(sulfobetaine and carboxybetaine) construction through ring-opening reaction. Physicochemical properties of substrates were demonstrated by water contact angle measurement, attenuated total reflection Fourier transform infrared spectroscopy (ATR-FTIR) and X-ray photoelectron spectroscopy (XPS). The hemocompatibility was evaluated by platelet adhesion, hemolytic, and protein adsorption. The results showed that the zwitterions immobilized PET endowed with improved resistance to nonspecific protein adsorption and platelet adhesion as well as nonhemolytic. The zwitterions with desirable hemocompatibility can be readily tailored to catheter for various biomedical applications.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: C - Volume 36, 1 March 2014, Pages 42–48
نویسندگان
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