Ultrathin, long-term stable, solid-state reference electrode enabled by enhanced interfacial adhesion and conformal coating of AgCl
DC Field | Value | Language |
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dc.contributor.author | Lim, Hyo-Ryoung | - |
dc.contributor.author | Hillman, Nathan | - |
dc.contributor.author | Kwon, Young-Tae | - |
dc.contributor.author | Kim, Yun-Soung | - |
dc.contributor.author | Choa, Yong-Ho | - |
dc.contributor.author | Yeo, Woon-Hong | - |
dc.date.accessioned | 2021-06-22T09:05:09Z | - |
dc.date.available | 2021-06-22T09:05:09Z | - |
dc.date.issued | 2020-04 | - |
dc.identifier.issn | 0925-4005 | - |
dc.identifier.issn | 0925-4005 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/1161 | - |
dc.description.abstract | Continuous biochemical monitoring with a flexible electrochemical sensor offers a new wearable electronic system that can measure real-time voltage and current signals. The signal quality is determined by long-term stability of a silver/silver chloride reference electrode (Ag/AgCl RE). However, it is very challenging for any solid-state electrode to have a long-term stable operation. Even though new membrane technologies have improved the voltage stability, the existing thin film Ag/AgCl REs have limitations of insufficient film adhesion and structural instability. Here, this paper introduces an ultrathin, all-solid-state RE that demonstrates a long-term functional stability for more than two weeks via enhanced interfacial adhesion and conformal coating of AgCl. An optimization of chlorination factors allows a highly uniform, 800 nm-thick RE surface. The voltage response of the sensor in a saline solution shows a change of 0.09 mV/h for 18 days with a quasi-stable behavior, capturing the potential as an amperometric biosensor. Moreover, the characterization with an enzymatic working electrode verifies that two-electrode system using the thin-film RE has a sensitivity (S = 606 nA.mmol(-1.) cm(-2)), compatible to that with a commercial RE (S = 532 nA.mmol(-1.) cm(-2)). Collectively, this work provides a comprehensive study of materials and surface functionalization of all-solid-state REs for thin-film biosensors, which will pave the way for long-term usable wearable biosystems. | - |
dc.format.extent | 11 | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | Elsevier BV | - |
dc.title | Ultrathin, long-term stable, solid-state reference electrode enabled by enhanced interfacial adhesion and conformal coating of AgCl | - |
dc.type | Article | - |
dc.publisher.location | 스위스 | - |
dc.identifier.doi | 10.1016/j.snb.2020.127761 | - |
dc.identifier.scopusid | 2-s2.0-85078791114 | - |
dc.identifier.wosid | 000513878700061 | - |
dc.identifier.bibliographicCitation | Sensors and Actuators, B: Chemical, v.309, pp 1 - 11 | - |
dc.citation.title | Sensors and Actuators, B: Chemical | - |
dc.citation.volume | 309 | - |
dc.citation.startPage | 1 | - |
dc.citation.endPage | 11 | - |
dc.type.docType | Article | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Electrochemistry | - |
dc.relation.journalResearchArea | Instruments & Instrumentation | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Analytical | - |
dc.relation.journalWebOfScienceCategory | Electrochemistry | - |
dc.relation.journalWebOfScienceCategory | Instruments & Instrumentation | - |
dc.subject.keywordPlus | AG/AGCL REFERENCE ELECTRODE | - |
dc.subject.keywordPlus | SILVER-CHLORIDE | - |
dc.subject.keywordPlus | SURFACE | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | CONDUCTIVITY | - |
dc.subject.keywordPlus | DEGRADATION | - |
dc.subject.keywordPlus | STABILITY | - |
dc.subject.keywordPlus | OXIDE | - |
dc.subject.keywordAuthor | All-solid-state reference electrode | - |
dc.subject.keywordAuthor | Ultrathin electrode | - |
dc.subject.keywordAuthor | Long-term stability | - |
dc.subject.keywordAuthor | Interfacial adhesion | - |
dc.subject.keywordAuthor | Conformal coating | - |
dc.subject.keywordAuthor | Biosensors | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S0925400520301088?via%3Dihub | - |
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