DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Testaverde S. | ko |
dc.contributor.author | Nam, Jahyun | ko |
dc.contributor.author | Kim, Dae Woo | ko |
dc.contributor.author | Jung, Hee-Tae | ko |
dc.contributor.author | Yeon, Kyung-Min | ko |
dc.contributor.author | Kim, Jungbae | ko |
dc.date.accessioned | 2021-11-09T06:42:09Z | - |
dc.date.available | 2021-11-09T06:42:09Z | - |
dc.date.created | 2021-11-09 | - |
dc.date.created | 2021-11-09 | - |
dc.date.created | 2021-11-09 | - |
dc.date.created | 2021-11-09 | - |
dc.date.created | 2021-11-09 | - |
dc.date.issued | 2021-11 | - |
dc.identifier.citation | CHEMICAL ENGINEERING JOURNAL, v.424, pp.130343 | - |
dc.identifier.issn | 1385-8947 | - |
dc.identifier.uri | http://hdl.handle.net/10203/288966 | - |
dc.description.abstract | This paper presents highly effective antimicrobial surfaces employing a 2D structured nanobiocatalyst composed of graphene oxide (GO) and glucose oxidase (GOD). Enzyme molecules are immobilized onto extra-large GO pieces with a plane dimension of approximately 100 mu m via an enzyme adsorption, precipitation, and crosslinking (EAPC) approach. This enables the effective wrapping of extra-large GO pieces by a matrix of crosslinked enzyme aggregates, which improves the enzyme loading. Consequently, the measured GOD activities of the EAPC sample via 50% (w/v) ammonium sulfate precipitation are 4,940 and 3,820 times higher than those of the control samples, i.e, the enzyme adsorption (EA) and enzyme adsorption/crosslinking (EAC) samples, respectively. The preservation of the planar GO geometry with an extra-large surface also allows the effective binding of EAPC onto a commercial membrane filter via a polydopamine coating, thus yielding a biocatalytic EAPC membrane. Compared to the commercial membrane with no bound EAPC, the in situ generation of H2O2 via the EAPC-catalyzed oxidation of glucose on the membrane surface demonstrated enhanced filterability against a mixed bacterial population of activated sludge obtained from a municipal sewage plant as well as two model bacteria: gram-negative Pseudomonas aeruginosa and gram-positive Staphylococcus aureus. The bacterial decontamination of the EAPC-bound membrane surface can also be activated on demand by simply adding glucose to the bulk solution. This newly proposed mechanism of antifouling surfaces employing a localized nanobiocatalytic conversion of nontoxic glucose to bactericidal H2O2 can provide insights for biofouling control via a highly effective and environment-friendly approach. | - |
dc.language | English | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.title | Antifouling membranes employing a 2D planar nanobiocatalyst of crosslinked glucose oxidase aggregates wrapping extra-large graphene oxide | - |
dc.type | Article | - |
dc.identifier.wosid | 000707037200042 | - |
dc.identifier.scopusid | 2-s2.0-85109091022 | - |
dc.type.rims | ART | - |
dc.citation.volume | 424 | - |
dc.citation.beginningpage | 130343 | - |
dc.citation.publicationname | CHEMICAL ENGINEERING JOURNAL | - |
dc.identifier.doi | 10.1016/j.cej.2021.130343 | - |
dc.embargo.liftdate | 9999-12-31 | - |
dc.embargo.terms | 9999-12-31 | - |
dc.contributor.localauthor | Jung, Hee-Tae | - |
dc.contributor.nonIdAuthor | Kim, Testaverde S. | - |
dc.contributor.nonIdAuthor | Nam, Jahyun | - |
dc.contributor.nonIdAuthor | Kim, Dae Woo | - |
dc.contributor.nonIdAuthor | Yeon, Kyung-Min | - |
dc.contributor.nonIdAuthor | Kim, Jungbae | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Membrane antifouling | - |
dc.subject.keywordAuthor | Antimicrobial surface | - |
dc.subject.keywordAuthor | Glucose oxidase | - |
dc.subject.keywordAuthor | Planar nanobiocatalyst | - |
dc.subject.keywordAuthor | Graphene oxide | - |
dc.subject.keywordAuthor | In situ biocide generation | - |
dc.subject.keywordPlus | MICROBIAL COMMUNITY STRUCTURE | - |
dc.subject.keywordPlus | BIOFOULING CONTROL | - |
dc.subject.keywordPlus | ANTIBACTERIAL | - |
dc.subject.keywordPlus | BIOREACTORS | - |
dc.subject.keywordPlus | ENZYMES | - |
dc.subject.keywordPlus | ACYLASE | - |
dc.subject.keywordPlus | IMMOBILIZATION | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | SURFACES | - |
dc.subject.keywordPlus | COATINGS | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.