کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5360255 1503688 2013 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Carbon coatings on polymers and their biocompatibility
ترجمه فارسی عنوان
پوشش های کربنی روی پلیمرها و سازگاری آنها
کلمات کلیدی
پلی اتیل فلوئورو اتیلن، پلی اتیلن ترفتالات، تبخیر کربن، خصوصیات سطحی، سیتو سازگاری،
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
چکیده انگلیسی

In this paper we modified the surface properties of polymer foils (polyethyleneterephthalate (PET) and polytetrafluoroethylene (PTFE)) by flash evaporation of carbon layers (C-layers). Adhesion and proliferation of vascular smooth muscle cells (VSMC) on carbon coated PTFE and PET were studied in vitro. Chemical composition of deposited C-layers was determined by Raman spectroscopy, surface contact angle was measured by goniometry. Surface morphology of carbon coated samples was studied using atomic force microscopy. Electrical properties of deposited C-layers were determined by measuring its sheet resistance. It was found that the carbon deposition leads to a decrease of surface roughness of PTFE and PET and to a significant increase of sample wettability. Electrical resistance and wettability of deposited C-layers depends significantly on both the thickness of C-layer and the type of polymeric substrate used. It was found that maximal stimulation of the VSMC (adhesion and proliferation) on carbon coated polymers depends on the surface roughness and contact angle of cell carriers used.

► Surface properties of PTFE and PET were modified by flash evaporation of C-layers. ► Adhesion and proliferation of vascular smooth muscle cells were studied in vitro. ► Carbon coatings positively stimulate adhesion and proliferation of cells.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 275, 15 June 2013, Pages 43-48
نویسندگان
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