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- W2516181759 abstract "Contact-active antibacterial surfaces play a vital role in preventing bacterial contamination of artificial surfaces. In the past, numerous researches have been focused on antibacterial surfaces comprising of antifouling upper-layer and antibacterial sub-layer. In this work, we demonstrate a reversed surface structure which integrate antibacterial upper-layer and antifouling sub-layer. These surfaces are prepared by simply casting gemini quaternary ammonium salt waterborne polyurethanes (GWPU) and their blends. Due to the high interfacial energy of gemini quaternary ammonium salt (GQAS), chain segments containing GQAS can accumulate at polymer/air interface to form an antibacterial upper-layer spontaneously during the film formation. Meanwhile, the soft segments composed of polyethylene glycol (PEG) formed the antifouling sub-layer. Our findings indicate that the combination of antibacterial upper-layer and antifouling sub-layer endow these surfaces strong, long-lasting antifouling and contact-active antibacterial properties, with a more than 99.99% killing efficiency against both gram-positive and gram-negative bacteria attached to them." @default.
- W2516181759 created "2016-09-16" @default.
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- W2516181759 date "2016-08-26" @default.
- W2516181759 modified "2023-10-11" @default.
- W2516181759 title "A Novel Surface Structure Consisting of Contact-active Antibacterial Upper-layer and Antifouling Sub-layer Derived from Gemini Quaternary Ammonium Salt Polyurethanes" @default.
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- W2516181759 doi "https://doi.org/10.1038/srep32140" @default.
- W2516181759 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/4999876" @default.
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- W2516181759 hasPublicationYear "2016" @default.
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