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Molecules 2017, 22(6), 964;

UV-Curable Aliphatic Silicone Acrylate Organic–Inorganic Hybrid Coatings with Antibacterial Activity

Faculty of Mechanical Engineering and Design, Kaunas University of Technology, Studentų St. 56, LT-51424 Kaunas, Lithuania
Institute of Materials Science, Kaunas University of Technology, Baršausko St. 59, LT-51423 Kaunas, Lithuania
Faculty of Chemical Technology, Kaunas University of Technology, Radvilėnų St. 19, LT-50254 Kaunas, Lithuania
Author to whom correspondence should be addressed.
Received: 31 March 2017 / Revised: 26 May 2017 / Accepted: 7 June 2017 / Published: 9 June 2017
(This article belongs to the Special Issue Antibacterial Materials and Coatings)
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The most effective means to protect against bacterial invasion and to reduce the risk of healthcare-associated infections are antibacterial components synthesis. In this study, a novel process for the synthesis of organic–inorganic hybrid coatings containing silver nanoparticles is presented. Silver nanoparticles and polymer formation proceeds simultaneously through the in situ photoreduction of silver salt to silver nanoparticles and UV-crosslinking of bifunctional aliphatic silicone acrylate. The nanocomposite films with 0.5–1.43 wt % of silver nanoparticles concentration were obtained and investigated. The formation of silver nanoparticles in polymer matrix was confirmed via UV-visible spectroscopy, X-ray diffraction (XRD), Fourier transform infrared spectroscopy, scanning electron spectroscopy, and energy dispersive spectroscopy. Our investigations clearly show the formation of silver nanoparticles in silicone acrylate network. Direct photoreduction of silver salt by UV-radiation in the organic media produced silver nanoparticles exhibiting cubic crystal structure. The size of nanoparticles was determined to be near 20 ± 5 nm. The antibacterial activities of coatings were determined using the disc diffusion and direct contact methods. UV-curable silicone acrylate hybrid coatings exhibited antibacterial activity against harmful bacteria strains. View Full-Text
Keywords: silicone acrylate; silver nanoparticles; UV-curable; antibacterial silicone acrylate; silver nanoparticles; UV-curable; antibacterial

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Jankauskaitė, V.; Lazauskas, A.; Griškonis, E.; Lisauskaitė, A.; Žukienė, K. UV-Curable Aliphatic Silicone Acrylate Organic–Inorganic Hybrid Coatings with Antibacterial Activity. Molecules 2017, 22, 964.

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