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Formulation of epoxy-polyester powder coatings containing silver-modified nanoclays and evaluation of their antimicrobial properties

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dc.contributor.author Armstrong, Gordon
dc.contributor.author Thornton, Roibeard F.
dc.contributor.author Ryan, Michael P.
dc.contributor.author Laffir, Fathima R.
dc.contributor.author Russell, Ronald J
dc.contributor.author Bala, Tanushree
dc.contributor.author Keely, Christopher
dc.contributor.author Babu, Rameesh
dc.date.accessioned 2013-05-08T14:32:06Z
dc.date.available 2013-05-08T14:32:06Z
dc.date.issued 2012
dc.identifier.uri http://hdl.handle.net/10344/3081
dc.description peer-reviewed en_US
dc.description.abstract Current interest in antimicrobial coatings is driven by an urgent need for more effective strategies to control microbial infection. In this study, antimicrobial nanoclays were prepared by ion-exchange of sodium montmorillonite (MMT) with silver ions which have been previously reported to exhibit biocidal activity. The extent of ion exchange achieved was estimated by x-ray photoelectron spectroscopy (XPS). The silver-modified nanoclay (AgMMT) fully inhibited growth of Gram negative Escherichia coli DH5α (E. coli) over 24 hours; annealing AgMMT under typical conditions used to prepare polymer composites did not reduce its antimicrobial efficacy. However, powder coatings of AgMMT dispersed in epoxy/polyester resin exhibited no antimicrobial effect E. coli. This is believed to be caused by poor wetting of the polymer coating, which restricted the diffusion of silver ion from the coating. en_US
dc.language.iso eng en_US
dc.publisher Springer-Verlag en_US
dc.relation.ispartofseries Polymer Bulletin;68(7), pp. 1951-1963
dc.relation.uri http://dx.doi.org/10.1007/s00289-011-0695-5
dc.rights The original publication is available at www.springerlink.com en_US
dc.subject nanoclay en_US
dc.subject nanocomposites en_US
dc.subject microbial infection control en_US
dc.title Formulation of epoxy-polyester powder coatings containing silver-modified nanoclays and evaluation of their antimicrobial properties en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.contributor.sponsor EI en_US
dc.contributor.sponsor Irish Government’s Programme for Research in Third Level Institutions, Cycle 4 en_US
dc.relation.projectid CFTD-2003-423 en_US
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US
dc.internal.rssid 1387743


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