Synthesis of Au-Cu Alloy Nanoparticles as Peroxidase Mimetics for H2O2 and Glucose Colorimetric Detection
DC Field | Value | Language |
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dc.contributor.author | Liu, Cun | - |
dc.contributor.author | Im, Sang Hyuk | - |
dc.contributor.author | Yu, Taekyung | - |
dc.date.accessioned | 2021-11-23T16:41:09Z | - |
dc.date.available | 2021-11-23T16:41:09Z | - |
dc.date.created | 2021-08-30 | - |
dc.date.issued | 2021-03 | - |
dc.identifier.issn | 2073-4344 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/128497 | - |
dc.description.abstract | The detection of hydrogen peroxide (H2O2) is essential in many research fields, including medical diagnosis, food safety, and environmental monitoring. In this context, Au-based bimetallic alloy nanomaterials have attracted increasing attention as an alternative to enzymes due to their superior catalytic activity. In this study, we report a coreduction synthesis of gold-copper (Au-Cu) alloy nanoparticles in aqueous phase. By controlling the amount of Au and Cu precursors, the Au/Cu molar ratio of the nanoparticles can be tuned from 1/0.1 to 1/2. The synthesized Au-Cu alloy nanoparticles show good peroxidase-like catalytic activity and high selectivity for the H2O2-mediated oxidation of 3,3 ',5,5 '-tetramethylbenzidine (TMB, colorless) to TMB oxide (blue). The Au-Cu nanoparticles with an Au/Cu molar ratio of 1/2 exhibit high catalytic activity in the H2O2 colorimetric detection, with a limit of detection of 0.141 mu M in the linear range of 1-10 mu M and a correlation coefficient R-2 = 0.991. Furthermore, the Au-Cu alloy nanoparticles can also efficiently detect glucose in the presence of glucose oxidase (GOx), and the detection limit is as low as 0.26 mu M. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | MDPI | - |
dc.title | Synthesis of Au-Cu Alloy Nanoparticles as Peroxidase Mimetics for H2O2 and Glucose Colorimetric Detection | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Im, Sang Hyuk | - |
dc.identifier.doi | 10.3390/catal11030343 | - |
dc.identifier.scopusid | 2-s2.0-85102038898 | - |
dc.identifier.wosid | 000633488700001 | - |
dc.identifier.bibliographicCitation | CATALYSTS, v.11, no.3, pp.1 - 12 | - |
dc.relation.isPartOf | CATALYSTS | - |
dc.citation.title | CATALYSTS | - |
dc.citation.volume | 11 | - |
dc.citation.number | 3 | - |
dc.citation.startPage | 1 | - |
dc.citation.endPage | 12 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.subject.keywordAuthor | Au& | - |
dc.subject.keywordAuthor | #8211 | - |
dc.subject.keywordAuthor | Cu alloy nanoparticles | - |
dc.subject.keywordAuthor | peroxidase mimetic | - |
dc.subject.keywordAuthor | H2O2 colorimetric detection | - |
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