Glassy carbon electrodes modified with a dispersion of multi-wall carbon nanotubes in dopamine-functionalized polyethylenimine: Characterization and analytical applications for nic...

Autores
Gasnier, Aurelien; Pedano, Maria Laura; Gutierrez, Fabiana Andrea; Labbé, Pierre; Rivas, Gustavo Adolfo; Rubianes, María Dolores
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We report the characterization of a dispersion of multi-wall carbon nanotubes (CNT) in a solution of polyethylenimine (PEI) functionalized with dopamine (Do), the electrochemical behavior of glassy carbon electrodes (GCE) modified with the resulting dispersion, and its analytical application for the highly sensitive quantification of NADH without fouling of the surface. The dispersion was obtained by sonicating for 60 min 1.0 mg CNT in 1.0 mL of 1.0 mg/mL PEI-Do solution prepared in 50/50 (v/v) ethanol/water. The presence of Do covalently bonded to PEI promotes hydrophobic π interactions with the CNT walls and improves significantly the dispersability of CNT in this mixture. The dispersion is highly stable since after 2 months resting at room temperature no phase separation was observed. This dispersion was dropcoated over GCE, and after solvent evaporation, a very reproducible and uniform coverage was obtained. An electrochemical pretreatment (activation) of such a modified GCE electrode allowed the sensitive quantification of NADH at potentials as low as -0.025 V. The response of NADH at the electrochemically activated GCE modified with the dispersion of CNT in PEI-Do solution (GCE/CNT-PEI-Do), demonstrated to be highly reproducible. The R.S.D. for the NADH sensitivity obtained with 15 electrodes and 3 different dispersions was 8.9%. Even more important, after 10 calibrations for NADH with the same surface the decrease in the sensitivity was smaller than 10%. The dispersion was characterized by Field Emission Scanning Electron Microscopy (FE-SEM), Fourier Transform Infrared Spectroscopy (FT-IR) while the electrodes modified with the dispersion were evaluated using different electrochemical techniques (Cyclic voltammetry (CV), Amperometry and Electrochemical Impedance Spectroscopy (EIS)). © 2012 Elsevier Ltd. All rights reserved.
Fil: Gasnier, Aurelien. 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: Pedano, Maria Laura. 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: Gutierrez, Fabiana Andrea. 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: Labbé, Pierre. Universite Joseph Fourier; Francia
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
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
Materia
Carbon Nanotubes Functionalization
Dopamine
Electrochemical Sensor
Nadh
Polyethylenimine
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:11336/62255
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/62255
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Glassy carbon electrodes modified with a dispersion of multi-wall carbon nanotubes in dopamine-functionalized polyethylenimine: Characterization and analytical applications for nicotinamide adenine dinucleotide quantificationGasnier, AurelienPedano, Maria LauraGutierrez, Fabiana AndreaLabbé, PierreRivas, Gustavo AdolfoRubianes, María DoloresCarbon Nanotubes FunctionalizationDopamineElectrochemical SensorNadhPolyethyleniminehttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1We report the characterization of a dispersion of multi-wall carbon nanotubes (CNT) in a solution of polyethylenimine (PEI) functionalized with dopamine (Do), the electrochemical behavior of glassy carbon electrodes (GCE) modified with the resulting dispersion, and its analytical application for the highly sensitive quantification of NADH without fouling of the surface. The dispersion was obtained by sonicating for 60 min 1.0 mg CNT in 1.0 mL of 1.0 mg/mL PEI-Do solution prepared in 50/50 (v/v) ethanol/water. The presence of Do covalently bonded to PEI promotes hydrophobic π interactions with the CNT walls and improves significantly the dispersability of CNT in this mixture. The dispersion is highly stable since after 2 months resting at room temperature no phase separation was observed. This dispersion was dropcoated over GCE, and after solvent evaporation, a very reproducible and uniform coverage was obtained. An electrochemical pretreatment (activation) of such a modified GCE electrode allowed the sensitive quantification of NADH at potentials as low as -0.025 V. The response of NADH at the electrochemically activated GCE modified with the dispersion of CNT in PEI-Do solution (GCE/CNT-PEI-Do), demonstrated to be highly reproducible. The R.S.D. for the NADH sensitivity obtained with 15 electrodes and 3 different dispersions was 8.9%. Even more important, after 10 calibrations for NADH with the same surface the decrease in the sensitivity was smaller than 10%. The dispersion was characterized by Field Emission Scanning Electron Microscopy (FE-SEM), Fourier Transform Infrared Spectroscopy (FT-IR) while the electrodes modified with the dispersion were evaluated using different electrochemical techniques (Cyclic voltammetry (CV), Amperometry and Electrochemical Impedance Spectroscopy (EIS)). © 2012 Elsevier Ltd. All rights reserved.Fil: Gasnier, Aurelien. 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: Pedano, Maria Laura. 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: Gutierrez, Fabiana Andrea. 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: Labbé, Pierre. Universite Joseph Fourier; FranciaFil: 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; ArgentinaFil: 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; ArgentinaPergamon-Elsevier Science Ltd2012-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/62255Gasnier, Aurelien; Pedano, Maria Laura; Gutierrez, Fabiana Andrea; Labbé, Pierre; Rivas, Gustavo Adolfo; et al.; Glassy carbon electrodes modified with a dispersion of multi-wall carbon nanotubes in dopamine-functionalized polyethylenimine: Characterization and analytical applications for nicotinamide adenine dinucleotide quantification; Pergamon-Elsevier Science Ltd; Electrochimica Acta; 71; 6-2012; 73-810013-4686CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0013468612004252info:eu-repo/semantics/altIdentifier/doi/10.1016/j.electacta.2012.03.073info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:06:10Zoai:ri.conicet.gov.ar:11336/62255instacron: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:34982025-09-10 13:06:10.443CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Glassy carbon electrodes modified with a dispersion of multi-wall carbon nanotubes in dopamine-functionalized polyethylenimine: Characterization and analytical applications for nicotinamide adenine dinucleotide quantification
title Glassy carbon electrodes modified with a dispersion of multi-wall carbon nanotubes in dopamine-functionalized polyethylenimine: Characterization and analytical applications for nicotinamide adenine dinucleotide quantification
spellingShingle Glassy carbon electrodes modified with a dispersion of multi-wall carbon nanotubes in dopamine-functionalized polyethylenimine: Characterization and analytical applications for nicotinamide adenine dinucleotide quantification
Gasnier, Aurelien
Carbon Nanotubes Functionalization
Dopamine
Electrochemical Sensor
Nadh
Polyethylenimine
title_short Glassy carbon electrodes modified with a dispersion of multi-wall carbon nanotubes in dopamine-functionalized polyethylenimine: Characterization and analytical applications for nicotinamide adenine dinucleotide quantification
title_full Glassy carbon electrodes modified with a dispersion of multi-wall carbon nanotubes in dopamine-functionalized polyethylenimine: Characterization and analytical applications for nicotinamide adenine dinucleotide quantification
title_fullStr Glassy carbon electrodes modified with a dispersion of multi-wall carbon nanotubes in dopamine-functionalized polyethylenimine: Characterization and analytical applications for nicotinamide adenine dinucleotide quantification
title_full_unstemmed Glassy carbon electrodes modified with a dispersion of multi-wall carbon nanotubes in dopamine-functionalized polyethylenimine: Characterization and analytical applications for nicotinamide adenine dinucleotide quantification
title_sort Glassy carbon electrodes modified with a dispersion of multi-wall carbon nanotubes in dopamine-functionalized polyethylenimine: Characterization and analytical applications for nicotinamide adenine dinucleotide quantification
dc.creator.none.fl_str_mv Gasnier, Aurelien
Pedano, Maria Laura
Gutierrez, Fabiana Andrea
Labbé, Pierre
Rivas, Gustavo Adolfo
Rubianes, María Dolores
author Gasnier, Aurelien
author_facet Gasnier, Aurelien
Pedano, Maria Laura
Gutierrez, Fabiana Andrea
Labbé, Pierre
Rivas, Gustavo Adolfo
Rubianes, María Dolores
author_role author
author2 Pedano, Maria Laura
Gutierrez, Fabiana Andrea
Labbé, Pierre
Rivas, Gustavo Adolfo
Rubianes, María Dolores
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Carbon Nanotubes Functionalization
Dopamine
Electrochemical Sensor
Nadh
Polyethylenimine
topic Carbon Nanotubes Functionalization
Dopamine
Electrochemical Sensor
Nadh
Polyethylenimine
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We report the characterization of a dispersion of multi-wall carbon nanotubes (CNT) in a solution of polyethylenimine (PEI) functionalized with dopamine (Do), the electrochemical behavior of glassy carbon electrodes (GCE) modified with the resulting dispersion, and its analytical application for the highly sensitive quantification of NADH without fouling of the surface. The dispersion was obtained by sonicating for 60 min 1.0 mg CNT in 1.0 mL of 1.0 mg/mL PEI-Do solution prepared in 50/50 (v/v) ethanol/water. The presence of Do covalently bonded to PEI promotes hydrophobic π interactions with the CNT walls and improves significantly the dispersability of CNT in this mixture. The dispersion is highly stable since after 2 months resting at room temperature no phase separation was observed. This dispersion was dropcoated over GCE, and after solvent evaporation, a very reproducible and uniform coverage was obtained. An electrochemical pretreatment (activation) of such a modified GCE electrode allowed the sensitive quantification of NADH at potentials as low as -0.025 V. The response of NADH at the electrochemically activated GCE modified with the dispersion of CNT in PEI-Do solution (GCE/CNT-PEI-Do), demonstrated to be highly reproducible. The R.S.D. for the NADH sensitivity obtained with 15 electrodes and 3 different dispersions was 8.9%. Even more important, after 10 calibrations for NADH with the same surface the decrease in the sensitivity was smaller than 10%. The dispersion was characterized by Field Emission Scanning Electron Microscopy (FE-SEM), Fourier Transform Infrared Spectroscopy (FT-IR) while the electrodes modified with the dispersion were evaluated using different electrochemical techniques (Cyclic voltammetry (CV), Amperometry and Electrochemical Impedance Spectroscopy (EIS)). © 2012 Elsevier Ltd. All rights reserved.
Fil: Gasnier, Aurelien. 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: Pedano, Maria Laura. 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: Gutierrez, Fabiana Andrea. 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: Labbé, Pierre. Universite Joseph Fourier; Francia
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
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
description We report the characterization of a dispersion of multi-wall carbon nanotubes (CNT) in a solution of polyethylenimine (PEI) functionalized with dopamine (Do), the electrochemical behavior of glassy carbon electrodes (GCE) modified with the resulting dispersion, and its analytical application for the highly sensitive quantification of NADH without fouling of the surface. The dispersion was obtained by sonicating for 60 min 1.0 mg CNT in 1.0 mL of 1.0 mg/mL PEI-Do solution prepared in 50/50 (v/v) ethanol/water. The presence of Do covalently bonded to PEI promotes hydrophobic π interactions with the CNT walls and improves significantly the dispersability of CNT in this mixture. The dispersion is highly stable since after 2 months resting at room temperature no phase separation was observed. This dispersion was dropcoated over GCE, and after solvent evaporation, a very reproducible and uniform coverage was obtained. An electrochemical pretreatment (activation) of such a modified GCE electrode allowed the sensitive quantification of NADH at potentials as low as -0.025 V. The response of NADH at the electrochemically activated GCE modified with the dispersion of CNT in PEI-Do solution (GCE/CNT-PEI-Do), demonstrated to be highly reproducible. The R.S.D. for the NADH sensitivity obtained with 15 electrodes and 3 different dispersions was 8.9%. Even more important, after 10 calibrations for NADH with the same surface the decrease in the sensitivity was smaller than 10%. The dispersion was characterized by Field Emission Scanning Electron Microscopy (FE-SEM), Fourier Transform Infrared Spectroscopy (FT-IR) while the electrodes modified with the dispersion were evaluated using different electrochemical techniques (Cyclic voltammetry (CV), Amperometry and Electrochemical Impedance Spectroscopy (EIS)). © 2012 Elsevier Ltd. All rights reserved.
publishDate 2012
dc.date.none.fl_str_mv 2012-06
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/11336/62255
Gasnier, Aurelien; Pedano, Maria Laura; Gutierrez, Fabiana Andrea; Labbé, Pierre; Rivas, Gustavo Adolfo; et al.; Glassy carbon electrodes modified with a dispersion of multi-wall carbon nanotubes in dopamine-functionalized polyethylenimine: Characterization and analytical applications for nicotinamide adenine dinucleotide quantification; Pergamon-Elsevier Science Ltd; Electrochimica Acta; 71; 6-2012; 73-81
0013-4686
CONICET Digital
CONICET
url http://hdl.handle.net/11336/62255
identifier_str_mv Gasnier, Aurelien; Pedano, Maria Laura; Gutierrez, Fabiana Andrea; Labbé, Pierre; Rivas, Gustavo Adolfo; et al.; Glassy carbon electrodes modified with a dispersion of multi-wall carbon nanotubes in dopamine-functionalized polyethylenimine: Characterization and analytical applications for nicotinamide adenine dinucleotide quantification; Pergamon-Elsevier Science Ltd; Electrochimica Acta; 71; 6-2012; 73-81
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/S0013468612004252
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.electacta.2012.03.073
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 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 13.004268

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