کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8023876 1517539 2018 22 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Highly hydrophilic and antibiofouling surface of zwitterionic polymer immobilized on polydimethylsiloxane by initiator-free atmospheric plasma-induced polymerization
ترجمه فارسی عنوان
سطح بسیار هیدروفیل و آنتی بیوفولین پلیمر زویتیونیک با پلی متیل سیلوکسان با پلیمریزاسیون ناشی از پلاسما اتمسفری بدون آغاز کننده
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
چکیده انگلیسی
In this study, we have successfully grafted zwitterionic 2-methacryloyloxyethyl phosphorylcholine (MPC) polymer brushes (5-8 nm) on the silicone (polydimethylsiloxane, PDMS)-based contact lenses using “initiator-free” and atmospheric plasma-induced polymerization. Varied atmospheric plasmas (O2, N2 and Ar gas) were employed in the process of the polymerization of the zwitterionic polymer brushes on the silicone surfaces without the addition of any initiators. The morphology and characterization of the zwitterionic MPC-immobilized films were investigated using atomic force microscopy, contact angle (CA) measurements and X-ray photoelectron spectroscopy. MPC immobilizations will significantly improve the hydrophilicity of silicone contact lenses, and the CA of the MPC modified-silicone contact lenses will decrease to 50°-60°, compared with that of the pristine ones (CA: ~90°). Furthermore, the MPC modifications exhibit an anti-fouling capability (25-30% decrease of protein adsorption), which can avoid protein (fibrinogen and human serum bovine) adhesion that would contaminate the contact lenses. It maintains the great oxygen permeability (103 ± 5 Dk) and transmittance (T%) is still transparent and colorless after MPC grafted on the PDMS contact lens. Therefore, the immobilization of the MPC polymer brushes by atmospheric plasma-induced polymerization would be a rapid method to improve the hydrophilicity and enhance the anti-fouling capability of silicone based-contact lenses.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface and Coatings Technology - Volume 344, 25 June 2018, Pages 621-625
نویسندگان
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