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DC Field | Value | Language |
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dc.citation.endPage | 2687 | - |
dc.citation.number | 5 | - |
dc.citation.startPage | 2679 | - |
dc.citation.title | ENVIRONMENTAL SCIENCE & TECHNOLOGY | - |
dc.citation.volume | 53 | - |
dc.contributor.author | Kim, Hyung-Eun | - |
dc.contributor.author | Lee, Hye-Jin | - |
dc.contributor.author | Kim, Min Sik | - |
dc.contributor.author | Kim, Taewan | - |
dc.contributor.author | Lee, Hongshin | - |
dc.contributor.author | Kim, Hak-Hyeon | - |
dc.contributor.author | Cho, Min | - |
dc.contributor.author | Hong, Seok-Won | - |
dc.contributor.author | Lee, Changha | - |
dc.date.accessioned | 2023-12-21T19:20:42Z | - |
dc.date.available | 2023-12-21T19:20:42Z | - |
dc.date.created | 2019-03-28 | - |
dc.date.issued | 2019-03 | - |
dc.description.abstract | Bimetallic iron-copper nanoparticles (Fe/Cu-NPs) were synthesized by a single-pot surfactant-free method in aqueous solution [via the reduction of ferrous ion to zerovalent iron nanoparticles (Fe-NPs) and the subsequent copper-coating by metal ion exchange]. The produced Fe/Cu-NPs formed aggregates of spherical nanoparticles (approximately 30-70 nm) of Fe-Cu core-shell structures with 11 wt % copper content. The microbicidal effects of Fe/Cu-NPs were explored on Escherichia coli and MS2 coliphage, surrogates for bacterial and viral pathogens, respectively. Fe/Cu-NPs exhibited synergistically enhanced activity for the inactivation of E. coli and MS2, compared to single-metal nanoparticles (i.e., Fe-NPs and Cu-NPs). Various experiments (microbial inactivation tests under different conditions, fluorescence staining assays, experiments using ELISA and qRT-PCR, etc.) suggested that Fe/Cu-NPs inactivate E. coli and MS2 via dual microbicidal mechanisms. Two biocidal copper species [Cu(I) and Cu(III)] can be generated by different redox reactions of Fe/Cu-NPs. It is suggested that E. coli is strongly influenced by the cytotoxicity of Cu(I), while MS2 is inactivated mainly due to the oxidative damages of protein capsid and RNA by Cu(III). | - |
dc.identifier.bibliographicCitation | ENVIRONMENTAL SCIENCE & TECHNOLOGY, v.53, no.5, pp.2679 - 2687 | - |
dc.identifier.doi | 10.1021/acs.est.8b06077 | - |
dc.identifier.issn | 0013-936X | - |
dc.identifier.scopusid | 2-s2.0-85062099991 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/26410 | - |
dc.identifier.url | https://pubs.acs.org/doi/10.1021/acs.est.8b06077 | - |
dc.identifier.wosid | 000460709100043 | - |
dc.language | 영어 | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Differential Microbicidal Effects of Bimetallic Iron-Copper Nanoparticles on Escherichia coli and MS2 Coliphage | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Engineering, Environmental; Environmental Sciences | - |
dc.relation.journalResearchArea | Engineering; Environmental Sciences & Ecology | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | HYDROGEN-PEROXIDE | - |
dc.subject.keywordPlus | ANTIBACTERIAL ACTIVITY | - |
dc.subject.keywordPlus | ANTIMICROBIAL NANOMATERIALS | - |
dc.subject.keywordPlus | ZEROVALENT IRON | - |
dc.subject.keywordPlus | SILVER | - |
dc.subject.keywordPlus | INACTIVATION | - |
dc.subject.keywordPlus | OXIDATION | - |
dc.subject.keywordPlus | OXYGEN | - |
dc.subject.keywordPlus | ACTIVATION | - |
dc.subject.keywordPlus | WATER | - |
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