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        Antibacterial activity of reactive quaternary ammonium compounds in solution and in nonleachable coatings

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        https://doi.org/10.4315/0362-028X.JFP-11-220
        http://hdl.handle.net/20.500.12010/10200
        https://doi.org/10.4315/0362-028X.JFP-11-220
        http://repositorioslatinoamericanos.uchile.cl/handle/2250/3500553
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        Author
        Gozzelino, G.
        Romero Tobar, D. E.
        Chaitiemwong, N.
        Hazeleger, W.
        Beumer, R.
        Institutions
        • Universidad Jorge Tadeo Lozano (Colombia)
        Abstract
        Antibacterial polymers suitable for coating applications without leaching of the biocidal component have been obtained by UV copolymerization of acrylic resins with acrylic monomers containing quaternary ammonium moieties. Suitable reactive biocides, based on quaternary ammonium monomers (QAMs), endowed with undecylacryloyl group and alkyl chains with 2 (QAM-C2), 8 (QAM-C8), and 16 (QAM-C16) carbon atoms have been synthesized. Aqueous solutions of QAMs showed biocidal activity against Escherichia coli, Staphylococcus aureus, and Listeria monocytogenes strains both in suspension and adhered to stainless steel surfaces. QAM-C16 and QAM-C8 evidenced higher activity toward bacteria in suspension and on stainless steel, respectively. The QAMs have shown sufficient reactivity to be copolymerized, by UV irradiation, with a commercial urethane acrylic resin for coating. Bioactivity tests, performed on free films of crosslinked coatings containing 1% of copolymerized QAM, have shown an increasing inactivation effect in the order of magnitude L. monocytogenes , E. coli , S. aureus with a maximum activity of the QAM-C8.
        Subjects
        Antibacterial activity
        Reactive quaternary ammonium
        Nonleachable coatings

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        Red de Repositorios Latinoamericanos
        + of 4.000.000
        Available publications
        163 Participating institutions
        Dirección de Servicios de Información y Bibliotecas (SISIB)
        Universidad de Chile
        Membership Login
        Featured collections
        • Latin American Theses
        • Argentinean Theses
        • Chilean Theses
        • Peruvian Theses
        Latest collections added
        • Argentina
        • Brazil
        • Colombia
        • México
        Dirección de Servicios de Información y Bibliotecas (SISIB)
        Universidad de Chile
        Red de Repositorios Latinoamericanos | 2006-2018