Characterization of Plasma-Polymerized 4-vinyl Pyridine with Silver Nanoparticles on Poly(ethylene terephthalate) Film for Anti-Microbial Properties |
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| Authors: | Juan Jiang Bjørn Winther-Jensen Erik M Kjær |
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| Institution: | 1. Danish Polymer Centre, Department of Manufacturing Engineering and Management, Technical University of Denmark, Byg.423, 2800 Kgs.Lyngby, Denmark;2. Danish Polymer Centre, Risø National Laboratory, 4000 Roskilde, Denmark |
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| Abstract: | 4-vinyl pyridine was polymerized on poly(ethylene terephthalate) (PET) film by using lower energy pulsed AC plasma under low pressure in Ar atmosphere. The plasma polymerized coating was characterized by ATR Fourier transform infrared (FT-IR), scanning electron microscopy (SEM), field emission scanning electron microscopy (FE-SEM), atomic force microscopy (AFM) and X-ray photoelectron spectroscopy (XPS). Different thicknesses of poly(4-vinyl pyridine) coating under different plasma polymerization conditions were studied. Silver nanoparticles with diameter around 50nm deposit were precipitated on the poly(4-vinyl pyridine) coating by UV irradiation in Silver nitride water solution, in order to enhance the anti-microbial properties. Different kinds of modified PET films were tested for anti-microbial properties against yeast (Debaryomyces hansenii) by using microbiological analyser µ-4200 and direct microscopic count method. |
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| Keywords: | anti-microbial morphology nanoparticles plasma polymerization |
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