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dc.contributor.authorPáramo Martín, Ana Erica 
dc.contributor.authorPalmero Díaz, Susana 
dc.contributor.authorHeras, Aránzazu 
dc.contributor.authorColina, Álvaro 
dc.date.accessioned2018-09-12T11:39:44Z
dc.date.issued2018-02
dc.identifier.issn0039-9140
dc.identifier.urihttp://hdl.handle.net/10259/4937
dc.description.abstractA novel methodology to prepare sensors based on carbon nanostructures electrodes modified by metal nanoparticles is proposed. As a proof of concept, a novel bismuth nanoparticle/carbon nanofiber (Bi-NPs/CNF) electrode and a carbon nanotube (CNT)/gold nanoparticle (Au-NPs) have been developed. Bi-NPs/CNF films were prepared by 1) filtering a dispersion of CNFs on a polytetrafluorethylene (PTFE) filter, and 2) filtering a dispersion of Bi-NPs chemically synthesized through this CNF/PTFE film. Next the electrode is prepared by sticking the Bi-NPs/CNF/PTFE film on a PET substrate. In this work, Bi-NPs/CNF ratio was optimized using a Cd2+ solution as a probe sample. The Cd anodic stripping peak intensity, registered by differential pulse anodic stripping voltammetry (DPASV), is selected as target signal. The voltammograms registered for Cd stripping with this Bi-NPs/CNF/PTFE electrode showed well-defined and highly reproducible electrochemical. The optimized Bi-NPs/CNF electrode exhibits a Cd2+ detection limit of 53.57 ppb. To demonstrate the utility and versatility of this methodology, single walled carbon nanotubes (SWCNTs) and gold nanoparticles (Au-NPs) were selected to prepare a completely different electrode. Thus, the new Au-NPs/SWCNT/PTFE electrode was tested with a multiresponse technique. In this case, UV/Vis absorption spectroelectrochemistry experiments were carried out for studying dopamine, demonstrating the good performance of the Au-NPs/SWCNT electrode developed.en
dc.description.sponsorshipMinisterio de Economía y Competitividad (CTQ2014-61914-EXP, CTQ2014-55583-R, TEC2014-51940-C2-2R, CTQ2015-71955-REDT) and Junta de Castilla y León (BU033-U16)en
dc.description.sponsorshipMinisterio de Economía y Competitividad (CTQ2014-61914-EXP, CTQ2014-55583-R, TEC2014-51940-C2-2R, CTQ2015-71955-REDT) and Junta de Castilla y León (BU033-U16)
dc.format.mimetypeapplication/pdf
dc.language.isoenges
dc.publisherElsevieren
dc.relation.ispartofTalanta. 2018, V. 178, p. 736-742
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectCarbon nanofibers electrodesen
dc.subjectSingle-walled carbon nanotubes electrodesen
dc.subjectBismuth nanoparticlesen
dc.subjectGold nanoparticlesen
dc.subjectElectroanalysisen
dc.subject.otherQuímica analíticaes
dc.subject.otherChemistry, Analyticen
dc.titleCarbon nanostructured films modified by metal nanoparticles supported on filtering membranes for electroanalysisen
dc.typeArtículoes
dc.typeinfo:eu-repo/semantics/article
dc.date.embargo2020-02
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.relation.publisherversionhttps://doi.org/10.1016/j.talanta.2017.10.019
dc.identifier.doi10.1016/j.talanta.2017.10.019
dc.relation.projectIDinfo:eu-repo/grantAgreement/MINECO/CTQ2014-61914-EXP
dc.relation.projectIDinfo:eu-repo/grantAgreement/MINECO/CTQ2014-55583-R
dc.relation.projectIDinfo:eu-repo/grantAgreement/MINECO/TEC2014-51940-C2-2R
dc.relation.projectIDinfo:eu-repo/grantAgreement/MINECO/CTQ2015-71955-REDT
dc.relation.projectIDinfo:eu-repo/grantAgreement/JCyL/BU033-U16
dc.type.hasVersioninfo:eu-repo/semantics/acceptedVersionen


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