title: Low-Fouling Antibacterial Reverse Osmosis Membranes via Surface Grafting of Graphene Oxide.
abstract: Azide-functionalized graphene oxide (AGO) was covalently anchored onto commercial reverse osmosis (RO) membrane surfaces via azide photochemistry. Surface modification was carried out by coating the RO membrane with an aqueous dispersion of AGO followed by UV exposure under ambient conditions. This simple process produces a hydrophilic, smooth, antibacterial membrane with limited reduction in water permeability or salt selectivity. The GO-RO membrane exhibited a 17-fold reduction in biofouling after 24 h of Escherichia coli contact and almost 2 times reduced BSA fouling after a 1 week cross-flow test compared to its unmodified counterpart.
authors.affiliation: Department of Chemistry and Biochemistry, University of California, Los Angeles , Los Angeles, California 90095, United States.
authors.forename: Xinwei
authors.initials: X
authors.lastname: Huang
authors.affiliation: Department of Chemistry and Biochemistry, University of California, Los Angeles , Los Angeles, California 90095, United States.
authors.forename: Kristofer L
authors.initials: KL
authors.lastname: Marsh
authors.affiliation: Department of Chemistry and Biochemistry, University of California, Los Angeles , Los Angeles, California 90095, United States.
authors.forename: Brian T
authors.initials: BT
authors.lastname: McVerry
authors.affiliation: Department of Civil and Environmental Engineering, University of California, Los Angeles , Los Angeles, California 90095, United States.|Water Planet, Inc. , Los Angeles, California 90301, United States.
authors.forename: Eric M V
authors.initials: EM
authors.lastname: Hoek
authors.affiliation: Department of Chemistry and Biochemistry, University of California, Los Angeles , Los Angeles, California 90095, United States.|Water Planet, Inc. , Los Angeles, California 90301, United States.|Department of Materials Science and Engineering and the California NanoSystems Institute, University of California, Los Angeles , Los Angeles, California 90095, United States.
authors.forename: Richard B
authors.initials: RB
authors.lastname: Kaner
mesh_terms: D000900:Anti-Bacterial Agents / Q000737:chemistry / Q000494:pharmacology; D057219:Biofouling / Q000517:prevention & control*; D006108:Graphite / Q000737:chemistry*; D008567:Membranes, Artificial; D009995:Osmosis; D010087:Oxides / Q000737:chemistry* / Q000494:pharmacology; D010777:Photochemistry
chemical_list: D000900:Anti-Bacterial Agents; D008567:Membranes, Artificial; D010087:Oxides; D006108:Graphite
keywords: antibacterial; antifouling; azide; graphene oxide; reverse osmosis