Antifouling Ultrafiltration Membranes via Post-Fabrication Grafting of Biocidal Nanomaterials

Handle URI:
http://hdl.handle.net/10754/597590
Title:
Antifouling Ultrafiltration Membranes via Post-Fabrication Grafting of Biocidal Nanomaterials
Authors:
Mauter, Meagan S.; Wang, Yue; Okemgbo, Kaetochi C.; Osuji, Chinedum O.; Giannelis, Emmanuel P.; Elimelech, Menachem
Abstract:
Figure 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.
Citation:
Mauter 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.
Publisher:
American Chemical Society (ACS)
Journal:
ACS Applied Materials & Interfaces
KAUST Grant Number:
KUS-C1-018-02
Issue Date:
24-Aug-2011
DOI:
10.1021/am200522v
PubMed ID:
21736330
Type:
Article
ISSN:
1944-8244; 1944-8252
Sponsors:
This 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.
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Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorMauter, Meagan S.en
dc.contributor.authorWang, Yueen
dc.contributor.authorOkemgbo, Kaetochi C.en
dc.contributor.authorOsuji, Chinedum O.en
dc.contributor.authorGiannelis, Emmanuel P.en
dc.contributor.authorElimelech, Menachemen
dc.date.accessioned2016-02-25T12:42:39Zen
dc.date.available2016-02-25T12:42:39Zen
dc.date.issued2011-08-24en
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.en
dc.identifier.issn1944-8244en
dc.identifier.issn1944-8252en
dc.identifier.pmid21736330en
dc.identifier.doi10.1021/am200522ven
dc.identifier.urihttp://hdl.handle.net/10754/597590en
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.en
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.en
dc.publisherAmerican Chemical Society (ACS)en
dc.subjectAg nanoparticlesen
dc.subjectantimicrobialen
dc.subjectmembranesen
dc.subjectplasmaen
dc.subjectpolysulfoneen
dc.subjectultrafiltrationen
dc.titleAntifouling Ultrafiltration Membranes via Post-Fabrication Grafting of Biocidal Nanomaterialsen
dc.typeArticleen
dc.identifier.journalACS Applied Materials & Interfacesen
dc.contributor.institutionYale University, New Haven, United Statesen
dc.contributor.institutionCornell University, Ithaca, United Statesen
kaust.grant.numberKUS-C1-018-02en
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