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dc.contributor.authorCheng, Hong
dc.contributor.authorGuan, Qingtian
dc.contributor.authorVillalobos, Luis Francisco
dc.contributor.authorPeinemann, Klaus-Viktor
dc.contributor.authorPain, Arnab
dc.contributor.authorHong, Pei-Ying
dc.identifier.citationCheng, H., Guan, Q., Villalobos, L. F., Peinemann, K.-V., Pain, A., & Hong, P.-Y. (2019). Understanding the antifouling mechanisms related to copper oxide and zinc oxide nanoparticles in anaerobic membrane bioreactors. Environmental Science: Nano, 6(11), 3467–3479. doi:10.1039/c9en00872a
dc.description.abstractBiofouling impedes the performance of anaerobic membrane bioreactors. In this study, we aim to determine if copper oxide (CuO) and zinc oxide (ZnO) nanoparticles can effectively delay the biofouling of polyethersulfone (PES) membranes without disseminating emerging contaminants like antibiotic resistance genes (ARGs) and metal resistance genes (MRGs). A consequential decrease in biofilm composition related to total cells, polysaccharides, proteins, and bioactivity (i.e., adenosine triphosphate (ATP) and quorum sensing (QS) signal molecules) was observed in the presence of heavy metal nanoparticles. Metagenomic and metatranscriptomic analyses further attributed the delay of biofilm formation to the lower expression of QS-associated genes and biofilm formation genes. It was also determined that the expression of ARGs and MRGs was not stimulated in the presence of CuO and ZnO nanoparticles. These findings collectively suggest that CuO and ZnO nanoparticles embedded in membranes can delay biofouling with minimal potential for disseminating ARGs and MRGs post-treatment.
dc.description.sponsorshipThis study is supported by KAUST Center Competitive Funding FCC/1/1971-32-01 awarded to P.-Y. Hong.
dc.publisherRoyal Society of Chemistry (RSC)
dc.rightsArchived with thanks to Environmental Science: Nano
dc.titleUnderstanding the antifouling mechanisms related to copper oxide and zinc oxide nanoparticles in anaerobic membrane bioreactors
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Center
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.contributor.departmentBioscience Program
dc.contributor.departmentChemical Engineering Program
dc.contributor.departmentEnvironmental Microbial Safety and Biotechnology Lab
dc.contributor.departmentEnvironmental Science and Engineering Program
dc.contributor.departmentPathogen Genomics Laboratory
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)
dc.identifier.journalEnvironmental Science: Nano
dc.eprint.versionPublisher's Version/PDF
kaust.personCheng, Hong
kaust.personGuan, Qingtian
kaust.personVillalobos, Luis Francisco
kaust.personPeinemann, Klaus-Viktor
kaust.personPain, Arnab
kaust.personHong, Pei-Ying

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Archived with thanks to Environmental Science: Nano
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