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dc.contributor.authorHeras, Aránzazu 
dc.contributor.authorVulcano, Fabio
dc.contributor.authorGaroz Ruiz, Jesús 
dc.contributor.authorPorcelli, Nicola
dc.contributor.authorTerzi, Fabio
dc.contributor.authorColina, Álvaro 
dc.contributor.authorSeeber, Renato
dc.contributor.authorZanardi, Chiara
dc.date.accessioned2021-11-08T12:21:21Z
dc.date.available2021-11-08T12:21:21Z
dc.date.issued2019-02
dc.identifier.issn1424-8220
dc.identifier.urihttp://hdl.handle.net/10259/6120
dc.description.abstractA flexible electrode system entirely constituted by single-walled carbon nanotubes (SWCNTs) has been proposed as the sensor platform for -nicotinamide adenine dinucleotide (NADH) detection. The performance of the device, in terms of potential at which the electrochemical process takes place, significantly improves by electrochemical functionalization of the carbon-based material with a molecule possessing an o-hydroquinone residue, namely caffeic acid. Both the processes of SWCNT functionalization and NADH detection have been studied by combining electrochemical and spectroelectrochemical experiments, in order to achieve direct evidence of the electrode modification by the organic residues and to study the electrocatalytic activity of the resulting material in respect to functional groups present at the electrode/solution interface. Electrochemical measurements performed at the fixed potential of +0.30 V let us envision the possible use of the device as an amperometric sensor for NADH detection. Spectroelectrochemistry also demonstrates the effectiveness of the device in acting as a voltabsorptometric sensor for the detection of this same analyte by exploiting this different transduction mechanism, potentially less prone to the possible presence of interfering species.en
dc.description.sponsorshipFEDER and both the Spanish Ministerio de Economía y Competitividad (Grants CTQ2017-83935-R-AEI/FEDER-UE) and the Consejería de Educación -Junta de Castilla y León- (Grant BU297P18). Jesus Garoz-Ruiz thanks Ministerio de Economía y Competitividad for his postdoctoral contracts (CTQ2014-55583-R; CTQ2017-83935-R AEI/FEDER-UE). Fabio Vulcano thanks the ISOF institute of CNR for supporting his PhD Grant. Nicola Porcelli thanks Università di Modena e Reggio Emilia for supporting his stay at the University of Burgos.en
dc.format.mimetypeapplication/pdf
dc.language.isoengen
dc.publisherMDPIes
dc.relation.ispartofSensors. 2019, V. 19, n. 3, 518en
dc.rightsAtribución 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectSingle-walled carbon nanotubesen
dc.subjectCaffeic aciden
dc.subjectCatecholen
dc.subjectNADH oxidationen
dc.subjectElectrocatalysisen
dc.subjectAmperometric sensoren
dc.subjectVoltabsorptometric sensoren
dc.subjectSpectroelectrochemistryen
dc.subject.otherQuímica analíticaes
dc.subject.otherChemistry, Analyticen
dc.titleA Flexible Platform of Electrochemically Functionalized Carbon Nanotubes for NADH Sensorsen
dc.typeinfo:eu-repo/semantics/articlees
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses
dc.relation.publisherversionhttps://doi.org/10.3390/s19030518es
dc.identifier.doi10.3390/s19030518
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersiones


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