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dc.contributor.author | Tramarin, Luca | es_ES |
dc.contributor.author | Casquel, Rafael | es_ES |
dc.contributor.author | Gil-Rostra, Jorge | es_ES |
dc.contributor.author | González Martínez, Miguel Ángel | es_ES |
dc.contributor.author | Herrero-Labrador, Raquel | es_ES |
dc.contributor.author | Murillo, Ana María M. | es_ES |
dc.contributor.author | Laguna, María Fé | es_ES |
dc.contributor.author | Bañuls Polo, María-José | es_ES |
dc.contributor.author | González-Elipe, Agustín R. | es_ES |
dc.contributor.author | Holgado, Miguel | es_ES |
dc.date.accessioned | 2023-02-22T19:00:36Z | |
dc.date.available | 2023-02-22T19:00:36Z | |
dc.date.issued | 2022-10 | es_ES |
dc.identifier.uri | http://hdl.handle.net/10251/192030 | |
dc.description.abstract | [EN] In this work we present a dual optical and electrochemical sensor based on SiO2/Si3N4 resonant nanopillars covered with an indium tin oxide (ITO) thin film. A 25-30 nm thick ITO layer deposited by magnetron sputtering acts as an electrode when incorporated onto the nanostructured array, without compromising the optical sensing capability of the nanopillars. Bulk sensing performances before and after ITO deposition have been measured and compared in accordance with theoretical calculations. The electrochemical activity has been determined by the ferri/ferrocyanide redox reaction, showing a remarkably higher activity than that of flat thin films of similar ITO nominal thickness, and proving that the nanopillar system covered by ITO presents electrical continuity. A label-free optical biological detection has been performed, where the presence of amyloid-beta has been detected through an immunoassay enhanced with gold nanoparticles. Again, the experimental results have been corroborated by theoretical simulations. We have demonstrated that ITO can be a beneficial component for resonant nanopillars sensors by adding potential electrochemical sensing capabilities, without significantly altering their optical properties. We foresee that resonant nanopillars coated with a continuous ITO film could be used for simultaneous optical and electrochemical biosensing, improving the robustness of biomolecular identification. | es_ES |
dc.description.sponsorship | This research was funded by the Spanish Ministry (Ministerio de Economia y Competitividad) under project HERON (Grant TEC2017-84846-R). Moreover, the work of L. Tramarin was supported by the predoctoral contract of the Universidad Politecnica de Madrid. | es_ES |
dc.language | Inglés | es_ES |
dc.publisher | MDPI AG | es_ES |
dc.relation.ispartof | Chemosensors | es_ES |
dc.rights | Reconocimiento (by) | es_ES |
dc.subject | Resonant nanopillars | es_ES |
dc.subject | ITO | es_ES |
dc.subject | Gold nanoparticles | es_ES |
dc.subject | Optical biosensors | es_ES |
dc.subject | Electrochemical sensing | es_ES |
dc.subject.classification | QUIMICA ANALITICA | es_ES |
dc.title | Design and Characterization of ITO-Covered Resonant Nanopillars for Dual Optical and Electrochemical Sensing | es_ES |
dc.type | Artículo | es_ES |
dc.identifier.doi | 10.3390/chemosensors10100393 | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/TEC2017-84846-R/ES/TRANSDUCTORES AVANZADOS, BIOCHIPS Y PLATAFORMAS DE LECTURA PARA BIOSENSORES DE ALTO RENDIMIENTO, DETECCION DE LIQUIDOS Y MONITORIZACION DE CELULAS/ | es_ES |
dc.rights.accessRights | Abierto | es_ES |
dc.contributor.affiliation | Universitat Politècnica de València. Escuela Técnica Superior de Ingeniería Agronómica y del Medio Natural - Escola Tècnica Superior d'Enginyeria Agronòmica i del Medi Natural | es_ES |
dc.description.bibliographicCitation | Tramarin, L.; Casquel, R.; Gil-Rostra, J.; González Martínez, MÁ.; Herrero-Labrador, R.; Murillo, AMM.; Laguna, MF.... (2022). Design and Characterization of ITO-Covered Resonant Nanopillars for Dual Optical and Electrochemical Sensing. Chemosensors. 10(10). https://doi.org/10.3390/chemosensors10100393 | es_ES |
dc.description.accrualMethod | S | es_ES |
dc.relation.publisherversion | https://doi.org/10.3390/chemosensors10100393 | es_ES |
dc.description.upvformatpinicio | 393 | es_ES |
dc.type.version | info:eu-repo/semantics/publishedVersion | es_ES |
dc.description.volume | 10 | es_ES |
dc.description.issue | 10 | es_ES |
dc.identifier.eissn | 2227-9040 | es_ES |
dc.relation.pasarela | S\475441 | es_ES |
dc.contributor.funder | Universidad Politécnica de Madrid | es_ES |
dc.contributor.funder | Ministerio de Economía y Competitividad | es_ES |