Electrochemical sensor based on Au nanoparticles decorated boron-doped diamond electrode using ferrocene-tagged aptamer for proton detection
DC Field | Value | Language |
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dc.contributor.author | Song, Min-Jung | - |
dc.contributor.author | Lee, Seung-Koo | - |
dc.contributor.author | Lee, Jun-Yong | - |
dc.contributor.author | Kim, Jong-Hoon | - |
dc.contributor.author | Lim, Dae-Soon | - |
dc.date.accessioned | 2021-09-06T17:41:41Z | - |
dc.date.available | 2021-09-06T17:41:41Z | - |
dc.date.created | 2021-06-18 | - |
dc.date.issued | 2012-07-15 | - |
dc.identifier.issn | 1572-6657 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/107927 | - |
dc.description.abstract | An electrochemical sensor based on a boron-doped diamond (BDD) electrode decorated with gold nanoparticles (Au-NPs) was developed for the detection of protons using a ferrocene-tagged (Fc-tagged) aptamer. By introducing the Au-NPs, the aptamer with a thiol-terminated group was immobilized on the Au-NPs/BDD electrode by Au-S interaction. Morphology and characteristics of the modified BDD electrode were analyzed by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The employed aptamer is a cytosine-rich single stranded oligonucleotide. In this oligonucleotide, the distance between the labeled redox moiety and the electrode changes with the pH value because of the formation of an i-motif structure from cytosine-protonated cytosine (C-C+) pairs. The pH influenced the electron transfer process and the redox current. The synergetic effects of the BDD electrode and the Au-NPs improved the performance of this sensor. Therefore, the Au-NPs/BDD electrode exhibited higher sensitivity, faster response, a wider linear range and a good reproducibility for the detection of proton compared with the planar Au electrode. (C) 2012 Elsevier B.V. All rights reserved. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.subject | BIOSENSOR | - |
dc.subject | HYBRIDIZATION | - |
dc.title | Electrochemical sensor based on Au nanoparticles decorated boron-doped diamond electrode using ferrocene-tagged aptamer for proton detection | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Song, Min-Jung | - |
dc.contributor.affiliatedAuthor | Lim, Dae-Soon | - |
dc.identifier.doi | 10.1016/j.jelechem.2012.05.019 | - |
dc.identifier.scopusid | 2-s2.0-84862337189 | - |
dc.identifier.wosid | 000306728700020 | - |
dc.identifier.bibliographicCitation | JOURNAL OF ELECTROANALYTICAL CHEMISTRY, v.677, pp.139 - 144 | - |
dc.relation.isPartOf | JOURNAL OF ELECTROANALYTICAL CHEMISTRY | - |
dc.citation.title | JOURNAL OF ELECTROANALYTICAL CHEMISTRY | - |
dc.citation.volume | 677 | - |
dc.citation.startPage | 139 | - |
dc.citation.endPage | 144 | - |
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.journalResearchArea | Electrochemistry | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Analytical | - |
dc.relation.journalWebOfScienceCategory | Electrochemistry | - |
dc.subject.keywordPlus | BIOSENSOR | - |
dc.subject.keywordPlus | HYBRIDIZATION | - |
dc.subject.keywordAuthor | Proton | - |
dc.subject.keywordAuthor | Ferrocene | - |
dc.subject.keywordAuthor | i-Motif structure | - |
dc.subject.keywordAuthor | Aptamer sensor | - |
dc.subject.keywordAuthor | Boron-doped diamond | - |
dc.subject.keywordAuthor | pH | - |
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