کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5210954 | 1382929 | 2009 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Photodynamic inactivation of bacterial spores on the surface of a photoactive polymer
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
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چکیده انگلیسی
Novel photoactive polymers were prepared by covalently binding an anthraquinone (AQ) derivative through its 2-position to acid groups of a commercially available ethylene-acrylic acid copolymer, and the photodynamic action of films prepared using these polymers was evaluated. Inoculation of Bacilluscereus spores onto the surface of photoactive polymer films having an AQ content of 35% w/w, followed by exposure to low-power UV-A light, was found to significantly enhance the inactivation of the spores compared with their survival on the surface of inert polymer substrates. It was shown that this effect most likely originates from the photo-induced production of singlet oxygen by the photoactive polymer. These results provide compelling evidence that singlet oxygen produced exogenously by a polymeric substrate can successfully inactivate microbes located on the substrate's surface.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Reactive and Functional Polymers - Volume 69, Issue 11, November 2009, Pages 821-827
Journal: Reactive and Functional Polymers - Volume 69, Issue 11, November 2009, Pages 821-827
نویسندگان
Katherine Zerdin, Mark A. Horsham, Rosalie Durham, Paul Wormell, Andrew D. Scully,