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dc.contributor.author | Porcel-Valenzuela, M. | es_ES |
dc.contributor.author | Huerta, Francisco | es_ES |
dc.contributor.author | Morallón, Emilia | es_ES |
dc.contributor.author | Montilla-Jiménez, Francisco | es_ES |
dc.date.accessioned | 2019-03-15T21:01:30Z | |
dc.date.available | 2019-03-15T21:01:30Z | |
dc.date.issued | 2019 | es_ES |
dc.identifier.uri | http://hdl.handle.net/10251/118175 | |
dc.description.abstract | [EN] Dopamine, norepinephrine, and epinephrine neurotransmitters can be detected by electrochemical oxidation in conventional electrodes. However, their similar chemical structure and electrochemical behavior makes a difficult selective analysis. In the present work, glassy carbon electrodes have been modified with silica layers, which were prepared by electroassisted deposition of sol¿gel precursors. These layers were morphologically and compositionally characterized using different techniques, such as field emission scanning electron microscopy (FESEM), TEM, FTIR, or thermogravimetric analysis¿mass spectrometry (TG-MS). The affinity of silica for neurotransmitters was evaluated, exclusively, by means of electrochemical methods. It was demonstrated that silica adsorbs dopamine, norepinephrine, and epinephrine, showing different interaction with silica pores. The adsorption process is dominated by a hydrogen bond between silanol groups located at the silica surface and the amine groups of neurotransmitters. Because of the different interaction with neurotransmitters, electrodes modified with silica films could be used in electrochemical sensors for the selective detection of such molecules. | es_ES |
dc.description.sponsorship | This research was funded by the Ministerio de Ciencia, Innovación y Universidades (MAT2016-76595-R) and Conselleria de Educación, Investigación, Cultura y Deporte, Generalitat Valenciana (PROMETEO/2018/087). | |
dc.language | Inglés | es_ES |
dc.publisher | MDPI AG | es_ES |
dc.relation.ispartof | Sensors | es_ES |
dc.rights | Reconocimiento (by) | es_ES |
dc.subject | Electroassisted deposition | es_ES |
dc.subject | Catecholamine neurotransmitters | es_ES |
dc.subject | Liquid adsorption isotherms | es_ES |
dc.subject.classification | QUIMICA FISICA | es_ES |
dc.title | Affinity of electrochemically deposited sol-gel silica films towards catecholamine neurotransmitters | es_ES |
dc.type | Artículo | es_ES |
dc.identifier.doi | 10.3390/s19040868 | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/GVA//PROMETEO%2F2018%2F087/ES/Materiales nanoestructurados en análisis químico: Nuevas estrategias de preparación de la muestra basadas en (micro)extracción en fase sólida y desarrollo de nuevos sensores electroquímicos y espectroelectroquímicos/ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/MINECO//MAT2016-76595-R/ES/NUEVAS ESTRATEGIAS DE FUNCIONALIZACION ELECTROQUIMICA DE MATERIALES CARBONOSOS NANOESTRUCTURADOS PARA LA REDUCCION DE OXIGENO Y BIOSENSORES/ | es_ES |
dc.rights.accessRights | Abierto | es_ES |
dc.contributor.affiliation | Universitat Politècnica de València. Departamento de Ingeniería Textil y Papelera - Departament d'Enginyeria Tèxtil i Paperera | es_ES |
dc.description.bibliographicCitation | Porcel-Valenzuela, M.; Huerta, F.; Morallón, E.; Montilla-Jiménez, F. (2019). Affinity of electrochemically deposited sol-gel silica films towards catecholamine neurotransmitters. Sensors. 19(4):868-883. https://doi.org/10.3390/s19040868 | es_ES |
dc.description.accrualMethod | S | es_ES |
dc.relation.publisherversion | https://doi.org/10.3390/s19040868 | es_ES |
dc.description.upvformatpinicio | 868 | es_ES |
dc.description.upvformatpfin | 883 | es_ES |
dc.type.version | info:eu-repo/semantics/publishedVersion | es_ES |
dc.description.volume | 19 | es_ES |
dc.description.issue | 4 | es_ES |
dc.identifier.eissn | 1424-8220 | es_ES |
dc.identifier.pmid | 30791495 | |
dc.identifier.pmcid | PMC6412732 | en_EN |
dc.relation.pasarela | S\378280 | es_ES |
dc.contributor.funder | Generalitat Valenciana | es_ES |
dc.contributor.funder | Ministerio de Economía y Competitividad | es_ES |