Fused and unzipped carbon nanotubes, electrochemically treated, for selective determination of dopamine and serotonin

Autores
Bonetto, Maria Celina; Muñoz, Fernando Francisco; Diz, Virginia Emilse; Sacco, Natalia Jimena; Corton, Eduardo
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Glassy carbon electrodes (GC) were modified with multiwalled carbon nanotubes (MWCNT/GC) and electrochemically treated first by applying an oxidation potential and then a reduction potential. The resulting electrodes were characterized via scanning electron microscopy, Raman spectroscopy, energy dispersive spectroscopy, and electrochemical techniques, particularly cyclic voltammetry using the redox probes Fe(CN)6 3− /4- and Ru(NH3)2+/3+ and electrochemical impedance spectroscopy using Fe(CN)6 3− /4-. These modified electrodes showed an electrochemical determination selective for dopamine (DA) and serotonin (5HT) in the presence of ascorbic acid (AA) and uric acid (UA), simultaneously measured, with a high reproducibility (an RSD of 1.7% for DA and 1.6% for 5HT) and a limit of detection (LOD) of 235 nmol L−1 for DA and 460 nmol L−1 for 5HT. The GC electrodes modified with oxidized MWCNT, subsequently reduced, showed higher selectivity towards the oxidation of DA and 5HT compared with GC bare electrodes or modified with MWCNT or oxidized MWCNT.
Fil: Bonetto, Maria Celina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Muñoz, Fernando Francisco. Ministerio de Defensa. Instituto de Investigaciones Científicas y Técnicas para la Defensa; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Diz, Virginia Emilse. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Inorgánica, Analítica y Química Física; Argentina
Fil: Sacco, Natalia Jimena. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Corton, Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales; Argentina
Materia
DOPAMINE
ELECTROCHEMICAL TREATMENT
HYBRID FILM
MULTIWALLED CARBON NANOTUBES
SEROTONIN
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:11336/90639
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/90639
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Fused and unzipped carbon nanotubes, electrochemically treated, for selective determination of dopamine and serotoninBonetto, Maria CelinaMuñoz, Fernando FranciscoDiz, Virginia EmilseSacco, Natalia JimenaCorton, EduardoDOPAMINEELECTROCHEMICAL TREATMENTHYBRID FILMMULTIWALLED CARBON NANOTUBESSEROTONINhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Glassy carbon electrodes (GC) were modified with multiwalled carbon nanotubes (MWCNT/GC) and electrochemically treated first by applying an oxidation potential and then a reduction potential. The resulting electrodes were characterized via scanning electron microscopy, Raman spectroscopy, energy dispersive spectroscopy, and electrochemical techniques, particularly cyclic voltammetry using the redox probes Fe(CN)6 3− /4- and Ru(NH3)2+/3+ and electrochemical impedance spectroscopy using Fe(CN)6 3− /4-. These modified electrodes showed an electrochemical determination selective for dopamine (DA) and serotonin (5HT) in the presence of ascorbic acid (AA) and uric acid (UA), simultaneously measured, with a high reproducibility (an RSD of 1.7% for DA and 1.6% for 5HT) and a limit of detection (LOD) of 235 nmol L−1 for DA and 460 nmol L−1 for 5HT. The GC electrodes modified with oxidized MWCNT, subsequently reduced, showed higher selectivity towards the oxidation of DA and 5HT compared with GC bare electrodes or modified with MWCNT or oxidized MWCNT.Fil: Bonetto, Maria Celina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales; ArgentinaFil: Muñoz, Fernando Francisco. Ministerio de Defensa. Instituto de Investigaciones Científicas y Técnicas para la Defensa; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Diz, Virginia Emilse. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Inorgánica, Analítica y Química Física; ArgentinaFil: Sacco, Natalia Jimena. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales; ArgentinaFil: Corton, Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales; ArgentinaPergamon-Elsevier Science Ltd2018-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/90639Bonetto, Maria Celina; Muñoz, Fernando Francisco; Diz, Virginia Emilse; Sacco, Natalia Jimena; Corton, Eduardo; Fused and unzipped carbon nanotubes, electrochemically treated, for selective determination of dopamine and serotonin; Pergamon-Elsevier Science Ltd; Electrochimica Acta; 283; 9-2018; 338-3480013-4686CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0013468618314671info:eu-repo/semantics/altIdentifier/doi/10.1016/j.electacta.2018.06.179info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:44:24Zoai:ri.conicet.gov.ar:11336/90639instacron: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:34982025-09-03 09:44:24.618CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Fused and unzipped carbon nanotubes, electrochemically treated, for selective determination of dopamine and serotonin
title Fused and unzipped carbon nanotubes, electrochemically treated, for selective determination of dopamine and serotonin
spellingShingle Fused and unzipped carbon nanotubes, electrochemically treated, for selective determination of dopamine and serotonin
Bonetto, Maria Celina
DOPAMINE
ELECTROCHEMICAL TREATMENT
HYBRID FILM
MULTIWALLED CARBON NANOTUBES
SEROTONIN
title_short Fused and unzipped carbon nanotubes, electrochemically treated, for selective determination of dopamine and serotonin
title_full Fused and unzipped carbon nanotubes, electrochemically treated, for selective determination of dopamine and serotonin
title_fullStr Fused and unzipped carbon nanotubes, electrochemically treated, for selective determination of dopamine and serotonin
title_full_unstemmed Fused and unzipped carbon nanotubes, electrochemically treated, for selective determination of dopamine and serotonin
title_sort Fused and unzipped carbon nanotubes, electrochemically treated, for selective determination of dopamine and serotonin
dc.creator.none.fl_str_mv Bonetto, Maria Celina
Muñoz, Fernando Francisco
Diz, Virginia Emilse
Sacco, Natalia Jimena
Corton, Eduardo
author Bonetto, Maria Celina
author_facet Bonetto, Maria Celina
Muñoz, Fernando Francisco
Diz, Virginia Emilse
Sacco, Natalia Jimena
Corton, Eduardo
author_role author
author2 Muñoz, Fernando Francisco
Diz, Virginia Emilse
Sacco, Natalia Jimena
Corton, Eduardo
author2_role author
author
author
author
dc.subject.none.fl_str_mv DOPAMINE
ELECTROCHEMICAL TREATMENT
HYBRID FILM
MULTIWALLED CARBON NANOTUBES
SEROTONIN
topic DOPAMINE
ELECTROCHEMICAL TREATMENT
HYBRID FILM
MULTIWALLED CARBON NANOTUBES
SEROTONIN
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Glassy carbon electrodes (GC) were modified with multiwalled carbon nanotubes (MWCNT/GC) and electrochemically treated first by applying an oxidation potential and then a reduction potential. The resulting electrodes were characterized via scanning electron microscopy, Raman spectroscopy, energy dispersive spectroscopy, and electrochemical techniques, particularly cyclic voltammetry using the redox probes Fe(CN)6 3− /4- and Ru(NH3)2+/3+ and electrochemical impedance spectroscopy using Fe(CN)6 3− /4-. These modified electrodes showed an electrochemical determination selective for dopamine (DA) and serotonin (5HT) in the presence of ascorbic acid (AA) and uric acid (UA), simultaneously measured, with a high reproducibility (an RSD of 1.7% for DA and 1.6% for 5HT) and a limit of detection (LOD) of 235 nmol L−1 for DA and 460 nmol L−1 for 5HT. The GC electrodes modified with oxidized MWCNT, subsequently reduced, showed higher selectivity towards the oxidation of DA and 5HT compared with GC bare electrodes or modified with MWCNT or oxidized MWCNT.
Fil: Bonetto, Maria Celina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Muñoz, Fernando Francisco. Ministerio de Defensa. Instituto de Investigaciones Científicas y Técnicas para la Defensa; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Diz, Virginia Emilse. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Inorgánica, Analítica y Química Física; Argentina
Fil: Sacco, Natalia Jimena. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Corton, Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales; Argentina
description Glassy carbon electrodes (GC) were modified with multiwalled carbon nanotubes (MWCNT/GC) and electrochemically treated first by applying an oxidation potential and then a reduction potential. The resulting electrodes were characterized via scanning electron microscopy, Raman spectroscopy, energy dispersive spectroscopy, and electrochemical techniques, particularly cyclic voltammetry using the redox probes Fe(CN)6 3− /4- and Ru(NH3)2+/3+ and electrochemical impedance spectroscopy using Fe(CN)6 3− /4-. These modified electrodes showed an electrochemical determination selective for dopamine (DA) and serotonin (5HT) in the presence of ascorbic acid (AA) and uric acid (UA), simultaneously measured, with a high reproducibility (an RSD of 1.7% for DA and 1.6% for 5HT) and a limit of detection (LOD) of 235 nmol L−1 for DA and 460 nmol L−1 for 5HT. The GC electrodes modified with oxidized MWCNT, subsequently reduced, showed higher selectivity towards the oxidation of DA and 5HT compared with GC bare electrodes or modified with MWCNT or oxidized MWCNT.
publishDate 2018
dc.date.none.fl_str_mv 2018-09
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/11336/90639
Bonetto, Maria Celina; Muñoz, Fernando Francisco; Diz, Virginia Emilse; Sacco, Natalia Jimena; Corton, Eduardo; Fused and unzipped carbon nanotubes, electrochemically treated, for selective determination of dopamine and serotonin; Pergamon-Elsevier Science Ltd; Electrochimica Acta; 283; 9-2018; 338-348
0013-4686
CONICET Digital
CONICET
url http://hdl.handle.net/11336/90639
identifier_str_mv Bonetto, Maria Celina; Muñoz, Fernando Francisco; Diz, Virginia Emilse; Sacco, Natalia Jimena; Corton, Eduardo; Fused and unzipped carbon nanotubes, electrochemically treated, for selective determination of dopamine and serotonin; Pergamon-Elsevier Science Ltd; Electrochimica Acta; 283; 9-2018; 338-348
0013-4686
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/S0013468618314671
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.electacta.2018.06.179
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
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
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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score 13.13397

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