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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/71439
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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 Técnicas2025-09-29T10:20:41Zoai: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:34982025-09-29 10:20:41.604CONICET 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 |
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1844614189918715904 |
score |
13.070432 |