کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10230513 | 830 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Antibacterial activity of polymeric substrate with surface grafted viologen moieties
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بیو مهندسی (مهندسی زیستی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
An asymmetric viologen, N-hexyl-Nâ²-(4-vinylbenzyl)-4,4â²-bipyridinium bromide chloride (HVV), was synthesized and graft copolymerized with commercial PET films. The surface graft concentration of HVV on the PET film is easily controlled by varying the monomer concentration used in the UV-induced graft copolymerization process. The HVV surface functionalized PET film functions as a smart window whose transmittance is reduced upon exposure to light. Concomitantly, the film possesses antibacterial activity, as shown by its bactericidal effect on Escherichia coli (E. coli). The antibacterial activity depends on the concentration of pyridinium groups on the surface and a surface concentration of 25Â nmol/cm2 on PET has been shown to be highly effective in killing the bacteria.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biomaterials - Volume 26, Issue 5, February 2005, Pages 501-508
Journal: Biomaterials - Volume 26, Issue 5, February 2005, Pages 501-508
نویسندگان
Zhilong Shi, K.G Neoh, E.T Kang,