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dc.contributor.authorMauter, Meagan S.
dc.contributor.authorWang, Yue
dc.contributor.authorOkemgbo, Kaetochi C.
dc.contributor.authorOsuji, Chinedum O.
dc.contributor.authorGiannelis, Emmanuel P.
dc.contributor.authorElimelech, Menachem
dc.date.accessioned2016-02-25T12:42:39Z
dc.date.available2016-02-25T12:42:39Z
dc.date.issued2011-07-07
dc.identifier.citationMauter MS, Wang Y, Okemgbo KC, Osuji CO, Giannelis EP, et al. (2011) Antifouling Ultrafiltration Membranes via Post-Fabrication Grafting of Biocidal Nanomaterials. ACS Applied Materials & Interfaces 3: 2861–2868. Available: http://dx.doi.org/10.1021/am200522v.
dc.identifier.issn1944-8244
dc.identifier.issn1944-8252
dc.identifier.pmid21736330
dc.identifier.doi10.1021/am200522v
dc.identifier.urihttp://hdl.handle.net/10754/597590
dc.description.abstractFigure Presented: Ultrafiltration (UF) membranes perform critical pre-treatment functions in advanced water treatment processes. In operational systems, however, biofouling decreases membrane performance and increases the frequency and cost of chemical cleaning. The present work demonstrates a novel technique for covalently or ionically tethering antimicrobial nanoparticles to the surface of UF membranes. Silver nanoparticles (AgNPs) encapsulated in positively charged polyethyleneimine (PEI) were reacted with an oxygen plasma modified polysulfone UF membrane with and without 1-ethyl-3-(3- dimethylaminopropyl) carbodiimide hydrochloride (EDC) present. The nucleophilic primary amines of the PEI react with the electrophilic carboxyl groups on the UF membrane surface to form electrostatic and covalent bonds. The irreversible modification process imparts significant antimicrobial activity to the membrane surface. Post-synthesis functionalization methods, such as the one presented here, maximize the density of nanomaterials at the membrane surface and may provide a more efficient route for fabricating diverse array of reactive nanocomposite membranes. © 2011 American Chemical Society.
dc.description.sponsorshipThis publication is based on work supported by Award No. KUS-C1-018-02, made by King Abdullah University of Science and Technology (KAUST). MSM acknowledges generous support from the AWWA Abel Wolman Fellowship, the NSF Graduate Research Fellowship Program (GRFP), and the EPA Science to Achieve Results (STAR) Graduate Fellowship Program.
dc.publisherAmerican Chemical Society (ACS)
dc.subjectAg nanoparticles
dc.subjectantimicrobial
dc.subjectmembranes
dc.subjectplasma
dc.subjectpolysulfone
dc.subjectultrafiltration
dc.titleAntifouling Ultrafiltration Membranes via Post-Fabrication Grafting of Biocidal Nanomaterials
dc.typeArticle
dc.identifier.journalACS Applied Materials & Interfaces
dc.contributor.institutionYale University, New Haven, United States
dc.contributor.institutionCornell University, Ithaca, United States
kaust.grant.numberKUS-C1-018-02
dc.date.published-online2011-07-07
dc.date.published-print2011-08-24


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