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dc.contributor.author | Páramo Martín, Ana Erica | |
dc.contributor.author | Palmero Díaz, Susana | |
dc.contributor.author | Heras Vidaurre, Aránzazu | |
dc.contributor.author | Colina Santamaría, Álvaro | |
dc.date.accessioned | 2018-09-12T11:39:44Z | |
dc.date.issued | 2018-02 | |
dc.identifier.issn | 0039-9140 | |
dc.identifier.uri | http://hdl.handle.net/10259/4937 | |
dc.description.abstract | A 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.sponsorship | Ministerio 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.sponsorship | Ministerio 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.mimetype | application/pdf | |
dc.language.iso | eng | es |
dc.publisher | Elsevier | en |
dc.relation.ispartof | Talanta. 2018, V. 178, p. 736-742 | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 International | |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | |
dc.subject | Carbon nanofibers electrodes | en |
dc.subject | Single-walled carbon nanotubes electrodes | en |
dc.subject | Bismuth nanoparticles | en |
dc.subject | Gold nanoparticles | en |
dc.subject | Electroanalysis | en |
dc.subject.other | Química analítica | es |
dc.subject.other | Chemistry, Analytic | en |
dc.title | Carbon nanostructured films modified by metal nanoparticles supported on filtering membranes for electroanalysis | en |
dc.type | info:eu-repo/semantics/article | |
dc.date.embargo | 2020-02 | |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | |
dc.relation.publisherversion | https://doi.org/10.1016/j.talanta.2017.10.019 | |
dc.identifier.doi | 10.1016/j.talanta.2017.10.019 | |
dc.relation.projectID | info:eu-repo/grantAgreement/MINECO/CTQ2014-61914-EXP | |
dc.relation.projectID | info:eu-repo/grantAgreement/MINECO/CTQ2014-55583-R | |
dc.relation.projectID | info:eu-repo/grantAgreement/MINECO/TEC2014-51940-C2-2R | |
dc.relation.projectID | info:eu-repo/grantAgreement/MINECO/CTQ2015-71955-REDT | |
dc.relation.projectID | info:eu-repo/grantAgreement/JCyL/BU033-U16 | |
dc.type.hasVersion | info:eu-repo/semantics/acceptedVersion | en |