Carbon nanotubes paste electrodes modified with a melanic polymer: Analytical applications for the sensitive and selective quantification of dopamine

Autores
Rubianes, María Dolores; Arribas, Alberto Sánchez; Bermejo, Esperanza; Chicharro, Manuel; Zapardiel, Antonio; Rivas, Gustavo Adolfo
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
This work describes the advantages of carbon nanotubes paste electrodes (CNTPE) modified with a melanic polymer for the highly sensitive and selective quantification of dopamine. The polymer is electrogenerated from a 3.0 × 10-3 M l-dopa solution (in a 0.050 M phosphate buffer pH 7.40) by applying 0.80 V for 120 min. Two strategies for dopamine quantification are described, the amperometric detection at 0.200 V using 1.0 × 10-3 M ascorbic acid in the measurement solution to improve the sensitivity of the assay; and the adsorptive stripping detection with medium exchange using differential pulse voltammetry (DPV) as transduction mode. Detection limits of 2.0 nM and 20 nM were obtained with amperometry and adsorptive stripping, respectively. The interference of 5.0 × 10-4 M ascorbic acid and 5.0 × 10-5 M dopac was really negligible in both cases, demonstrating the advantages of the melanic polymer as permselective layer. © 2009 Elsevier B.V. All rights reserved.
Fil: Rubianes, María Dolores. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Arribas, Alberto Sánchez. Universidad Autónoma de Madrid; España
Fil: Bermejo, Esperanza. Universidad Autónoma de Madrid; España
Fil: Chicharro, Manuel. Universidad Autónoma de Madrid; España
Fil: Zapardiel, Antonio. Universidad Nacional de Educación a Distancia; España
Fil: Rivas, Gustavo Adolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Materia
Adsorptive Stripping
Dopamine
L-Dopa Polymerization
Melanic Polymer
Melanin
Polymer
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/71439
Acceder
id CONICETDig_26e812a5b33ad70a56a1018e425727e3
oai_identifier_str oai:ri.conicet.gov.ar:11336/71439
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Carbon nanotubes paste electrodes modified with a melanic polymer: Analytical applications for the sensitive and selective quantification of dopamineRubianes, María DoloresArribas, Alberto SánchezBermejo, EsperanzaChicharro, ManuelZapardiel, AntonioRivas, Gustavo AdolfoAdsorptive StrippingDopamineL-Dopa PolymerizationMelanic PolymerMelaninPolymerhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1This work describes the advantages of carbon nanotubes paste electrodes (CNTPE) modified with a melanic polymer for the highly sensitive and selective quantification of dopamine. The polymer is electrogenerated from a 3.0 × 10-3 M l-dopa solution (in a 0.050 M phosphate buffer pH 7.40) by applying 0.80 V for 120 min. Two strategies for dopamine quantification are described, the amperometric detection at 0.200 V using 1.0 × 10-3 M ascorbic acid in the measurement solution to improve the sensitivity of the assay; and the adsorptive stripping detection with medium exchange using differential pulse voltammetry (DPV) as transduction mode. Detection limits of 2.0 nM and 20 nM were obtained with amperometry and adsorptive stripping, respectively. The interference of 5.0 × 10-4 M ascorbic acid and 5.0 × 10-5 M dopac was really negligible in both cases, demonstrating the advantages of the melanic polymer as permselective layer. © 2009 Elsevier B.V. All rights reserved.Fil: Rubianes, María Dolores. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; ArgentinaFil: Arribas, Alberto Sánchez. Universidad Autónoma de Madrid; EspañaFil: Bermejo, Esperanza. Universidad Autónoma de Madrid; EspañaFil: Chicharro, Manuel. Universidad Autónoma de Madrid; EspañaFil: Zapardiel, Antonio. Universidad Nacional de Educación a Distancia; EspañaFil: Rivas, Gustavo Adolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; ArgentinaElsevier Science Sa2010-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/71439Rubianes, María Dolores; Arribas, Alberto Sánchez; Bermejo, Esperanza; Chicharro, Manuel; Zapardiel, Antonio; et al.; Carbon nanotubes paste electrodes modified with a melanic polymer: Analytical applications for the sensitive and selective quantification of dopamine; Elsevier Science Sa; Sensors and Actuators B: Chemical; 144; 1; 1-2010; 274-2790925-4005CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0925400509008612info:eu-repo/semantics/altIdentifier/doi/10.1016/j.snb.2009.10.067info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:53:21Zoai:ri.conicet.gov.ar:11336/71439instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:53:22.062CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Carbon nanotubes paste electrodes modified with a melanic polymer: Analytical applications for the sensitive and selective quantification of dopamine
title Carbon nanotubes paste electrodes modified with a melanic polymer: Analytical applications for the sensitive and selective quantification of dopamine
spellingShingle Carbon nanotubes paste electrodes modified with a melanic polymer: Analytical applications for the sensitive and selective quantification of dopamine
Rubianes, María Dolores
Adsorptive Stripping
Dopamine
L-Dopa Polymerization
Melanic Polymer
Melanin
Polymer
title_short Carbon nanotubes paste electrodes modified with a melanic polymer: Analytical applications for the sensitive and selective quantification of dopamine
title_full Carbon nanotubes paste electrodes modified with a melanic polymer: Analytical applications for the sensitive and selective quantification of dopamine
title_fullStr Carbon nanotubes paste electrodes modified with a melanic polymer: Analytical applications for the sensitive and selective quantification of dopamine
title_full_unstemmed Carbon nanotubes paste electrodes modified with a melanic polymer: Analytical applications for the sensitive and selective quantification of dopamine
title_sort Carbon nanotubes paste electrodes modified with a melanic polymer: Analytical applications for the sensitive and selective quantification of dopamine
dc.creator.none.fl_str_mv Rubianes, María Dolores
Arribas, Alberto Sánchez
Bermejo, Esperanza
Chicharro, Manuel
Zapardiel, Antonio
Rivas, Gustavo Adolfo
author Rubianes, María Dolores
author_facet Rubianes, María Dolores
Arribas, Alberto Sánchez
Bermejo, Esperanza
Chicharro, Manuel
Zapardiel, Antonio
Rivas, Gustavo Adolfo
author_role author
author2 Arribas, Alberto Sánchez
Bermejo, Esperanza
Chicharro, Manuel
Zapardiel, Antonio
Rivas, Gustavo Adolfo
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Adsorptive Stripping
Dopamine
L-Dopa Polymerization
Melanic Polymer
Melanin
Polymer
topic Adsorptive Stripping
Dopamine
L-Dopa Polymerization
Melanic Polymer
Melanin
Polymer
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv This work describes the advantages of carbon nanotubes paste electrodes (CNTPE) modified with a melanic polymer for the highly sensitive and selective quantification of dopamine. The polymer is electrogenerated from a 3.0 × 10-3 M l-dopa solution (in a 0.050 M phosphate buffer pH 7.40) by applying 0.80 V for 120 min. Two strategies for dopamine quantification are described, the amperometric detection at 0.200 V using 1.0 × 10-3 M ascorbic acid in the measurement solution to improve the sensitivity of the assay; and the adsorptive stripping detection with medium exchange using differential pulse voltammetry (DPV) as transduction mode. Detection limits of 2.0 nM and 20 nM were obtained with amperometry and adsorptive stripping, respectively. The interference of 5.0 × 10-4 M ascorbic acid and 5.0 × 10-5 M dopac was really negligible in both cases, demonstrating the advantages of the melanic polymer as permselective layer. © 2009 Elsevier B.V. All rights reserved.
Fil: Rubianes, María Dolores. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Arribas, Alberto Sánchez. Universidad Autónoma de Madrid; España
Fil: Bermejo, Esperanza. Universidad Autónoma de Madrid; España
Fil: Chicharro, Manuel. Universidad Autónoma de Madrid; España
Fil: Zapardiel, Antonio. Universidad Nacional de Educación a Distancia; España
Fil: Rivas, Gustavo Adolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
description This work describes the advantages of carbon nanotubes paste electrodes (CNTPE) modified with a melanic polymer for the highly sensitive and selective quantification of dopamine. The polymer is electrogenerated from a 3.0 × 10-3 M l-dopa solution (in a 0.050 M phosphate buffer pH 7.40) by applying 0.80 V for 120 min. Two strategies for dopamine quantification are described, the amperometric detection at 0.200 V using 1.0 × 10-3 M ascorbic acid in the measurement solution to improve the sensitivity of the assay; and the adsorptive stripping detection with medium exchange using differential pulse voltammetry (DPV) as transduction mode. Detection limits of 2.0 nM and 20 nM were obtained with amperometry and adsorptive stripping, respectively. The interference of 5.0 × 10-4 M ascorbic acid and 5.0 × 10-5 M dopac was really negligible in both cases, demonstrating the advantages of the melanic polymer as permselective layer. © 2009 Elsevier B.V. All rights reserved.
publishDate 2010
dc.date.none.fl_str_mv 2010-01
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/71439
Rubianes, María Dolores; Arribas, Alberto Sánchez; Bermejo, Esperanza; Chicharro, Manuel; Zapardiel, Antonio; et al.; Carbon nanotubes paste electrodes modified with a melanic polymer: Analytical applications for the sensitive and selective quantification of dopamine; Elsevier Science Sa; Sensors and Actuators B: Chemical; 144; 1; 1-2010; 274-279
0925-4005
CONICET Digital
CONICET
url http://hdl.handle.net/11336/71439
identifier_str_mv Rubianes, María Dolores; Arribas, Alberto Sánchez; Bermejo, Esperanza; Chicharro, Manuel; Zapardiel, Antonio; et al.; Carbon nanotubes paste electrodes modified with a melanic polymer: Analytical applications for the sensitive and selective quantification of dopamine; Elsevier Science Sa; Sensors and Actuators B: Chemical; 144; 1; 1-2010; 274-279
0925-4005
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0925400509008612
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.snb.2009.10.067
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science Sa
publisher.none.fl_str_mv Elsevier Science Sa
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1846782228445528064
score 12.982451

Publicaciones similares