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DC Field | Value | Language |
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dc.citation.endPage | 183 | - |
dc.citation.startPage | 176 | - |
dc.citation.title | SENSORS AND ACTUATORS B-CHEMICAL | - |
dc.citation.volume | 243 | - |
dc.contributor.author | Zhou, Qitao | - |
dc.contributor.author | Thokchom, Ashish Kumar | - |
dc.contributor.author | Kim, Dong-Joo | - |
dc.contributor.author | Kim, Taesung | - |
dc.date.accessioned | 2023-12-21T22:17:24Z | - |
dc.date.available | 2023-12-21T22:17:24Z | - |
dc.date.created | 2016-12-20 | - |
dc.date.issued | 2017-05 | - |
dc.description.abstract | Effective surface-enhanced Raman scattering (SERS) detection requires substrates that are typically fabricated using expensive, low-throughput and time-consuming micro-/nanofabrication processes such as photolithography, electron-beam lithography and template- assisted methods Here, a novel micro-/nanofabrication technique for fabricating SERS substrates with hydrophobicity gradients is demonstrated. An inkjet printer enables injecting an AgNO3 solution onto a thiol-functionalized superhydrophobic Cu surface, upon which Ag micro/nanostructures are generated via replacement reactions in the droplet-injected areas. When a mixed solution of target analytes and Au-nanoparticles (Au-NPs) are placed on this substrate, the contact area decreases over time due to the evaporation of the solution and the hydrophobicity of the substrate. As a result, the analyte molecules and Au-NPs are delivered to the Ag micro-/nanostructure clusters, upon which the analyte and Au-NPs are simply and easily concentrated in situ. With the cooperation of Ag nanoplates and Au-NPs, two antibiotics at very low concentrations (e.g., 100 pM 6-aminopenicillanic acid and 50 pM penicillin G sodium) were successfully detected, confirming the higher SERS activity than that of Ag-nanoplate-assembled nanotube arrays or an Ag-NPs decorated graphene electrophoretic pre-concentration device. Hence, this rapid design-to-prototype method for substrates with adjustable wetting properties can be very useful for a SERS platform to detect various target analytes in biosamples. | - |
dc.identifier.bibliographicCitation | SENSORS AND ACTUATORS B-CHEMICAL, v.243, pp.176 - 183 | - |
dc.identifier.doi | 10.1016/j.snb.2016.11.134 | - |
dc.identifier.issn | 0925-4005 | - |
dc.identifier.scopusid | 2-s2.0-84999663693 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/21016 | - |
dc.identifier.url | http://www.sciencedirect.com/science/article/pii/S0925400516319323 | - |
dc.identifier.wosid | 000395969100023 | - |
dc.language | 영어 | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.title | Inkjet-printed Ag micro-/nanostructure clusters on Cu substrates for in-situ pre-concentration and surface-enhanced Raman scattering | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Analytical; Electrochemistry; Instruments & Instrumentation | - |
dc.relation.journalResearchArea | Chemistry; Electrochemistry; Instruments & Instrumentation | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | Inkjet printing | - |
dc.subject.keywordAuthor | Pre-concentration | - |
dc.subject.keywordAuthor | Wettability | - |
dc.subject.keywordAuthor | Surface-enhanced Raman scattering (SERS) | - |
dc.subject.keywordAuthor | Analyte detection | - |
dc.subject.keywordPlus | POLYCYCLIC AROMATIC-HYDROCARBONS | - |
dc.subject.keywordPlus | SILVER ELECTRODE | - |
dc.subject.keywordPlus | SERS PROPERTIES | - |
dc.subject.keywordPlus | HOT-SPOTS | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | SPECTROSCOPY | - |
dc.subject.keywordPlus | ARRAYS | - |
dc.subject.keywordPlus | CHROMATOGRAPHY | - |
dc.subject.keywordPlus | ANTIBIOTICS | - |
dc.subject.keywordPlus | BLOOD | - |
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