Highly efficient and stable PANI/TRGO nanocomposites as active materials for electrochemical detection of dopamine

Thermally reduced graphene oxides (TRGOs), produced at 400 and 700 °C, and polyaniline (PANI) were used for one-pot facile hydrothermal synthesis of binary nanocomposites (PANI/TRGO). The morphology and chemical composition of these materials were thoroughly characterized by means of scanning electr...

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Detalles Bibliográficos
Autores: Minta, Daria, González Arias, Zoraida, Melendi-Espina, Sonia, Gryglewicz, Grażyna
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2022
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/288705
Acceso en línea:http://hdl.handle.net/10261/288705
https://api.elsevier.com/content/abstract/scopus_id/85119931482
Access Level:acceso abierto
Palabra clave:Composites
Conducting polymers
Dopamine
Electrochemical sensor
Graphene materials
Hydrothermal treatment
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spelling Highly efficient and stable PANI/TRGO nanocomposites as active materials for electrochemical detection of dopamineMinta, DariaGonzález Arias, ZoraidaMelendi-Espina, SoniaGryglewicz, GrażynaCompositesConducting polymersDopamineElectrochemical sensorGraphene materialsHydrothermal treatmentThermally reduced graphene oxides (TRGOs), produced at 400 and 700 °C, and polyaniline (PANI) were used for one-pot facile hydrothermal synthesis of binary nanocomposites (PANI/TRGO). The morphology and chemical composition of these materials were thoroughly characterized by means of scanning electron microscopy, nitrogen sorption at 77 K, elemental analysis, X-ray photoelectron spectroscopy, X-ray diffraction, and sheet resistance measurements. Cyclic voltammetry, differential pulse voltammetry and electrochemical impedance spectroscopy were used for electrochemical characterization. The scanning electron microscopy (SEM) observation revealed that the morphology of TRGOs has a crucial impact on the distribution of PANI in the composites. A more homogenous distribution of PANI was achieved for PANI/TRGO-700 due to the higher degree of exfoliation of the starting material TRGO-700. The synthesized composites were investigated as modifiers of glassy carbon electrodes (GCEs) for the electrochemical sensing of dopamine. Both, the PANI distribution and an appropriate oxygen content are key for DA sensing. Thus, the better performance of PANI/TRGO-700 as an active material was revealed, achieving a LOD of 430 nM, an excellent sensitivity (6.7 µA µM−1) and stability after 30 days.Following research was financially supported by a statutory activity subsidy from the Polish Ministry of Education and Science for the Faculty of Chemistry of Wrocław University of Science and Technology.Peer reviewedElsevierGonzález Arias, Zoraida [0000-0001-8932-3671]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202320232022info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/288705https://api.elsevier.com/content/abstract/scopus_id/85119931482reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésSurfaces and Interfaceshttps://doi.org/10.1016/j.surfin.2021.101606Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2887052026-05-22T06:33:51Z
dc.title.none.fl_str_mv Highly efficient and stable PANI/TRGO nanocomposites as active materials for electrochemical detection of dopamine
title Highly efficient and stable PANI/TRGO nanocomposites as active materials for electrochemical detection of dopamine
spellingShingle Highly efficient and stable PANI/TRGO nanocomposites as active materials for electrochemical detection of dopamine
Minta, Daria
Composites
Conducting polymers
Dopamine
Electrochemical sensor
Graphene materials
Hydrothermal treatment
title_short Highly efficient and stable PANI/TRGO nanocomposites as active materials for electrochemical detection of dopamine
title_full Highly efficient and stable PANI/TRGO nanocomposites as active materials for electrochemical detection of dopamine
title_fullStr Highly efficient and stable PANI/TRGO nanocomposites as active materials for electrochemical detection of dopamine
title_full_unstemmed Highly efficient and stable PANI/TRGO nanocomposites as active materials for electrochemical detection of dopamine
title_sort Highly efficient and stable PANI/TRGO nanocomposites as active materials for electrochemical detection of dopamine
dc.creator.none.fl_str_mv Minta, Daria
González Arias, Zoraida
Melendi-Espina, Sonia
Gryglewicz, Grażyna
author Minta, Daria
author_facet Minta, Daria
González Arias, Zoraida
Melendi-Espina, Sonia
Gryglewicz, Grażyna
author_role author
author2 González Arias, Zoraida
Melendi-Espina, Sonia
Gryglewicz, Grażyna
author2_role author
author
author
dc.contributor.none.fl_str_mv González Arias, Zoraida [0000-0001-8932-3671]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Composites
Conducting polymers
Dopamine
Electrochemical sensor
Graphene materials
Hydrothermal treatment
topic Composites
Conducting polymers
Dopamine
Electrochemical sensor
Graphene materials
Hydrothermal treatment
description Thermally reduced graphene oxides (TRGOs), produced at 400 and 700 °C, and polyaniline (PANI) were used for one-pot facile hydrothermal synthesis of binary nanocomposites (PANI/TRGO). The morphology and chemical composition of these materials were thoroughly characterized by means of scanning electron microscopy, nitrogen sorption at 77 K, elemental analysis, X-ray photoelectron spectroscopy, X-ray diffraction, and sheet resistance measurements. Cyclic voltammetry, differential pulse voltammetry and electrochemical impedance spectroscopy were used for electrochemical characterization. The scanning electron microscopy (SEM) observation revealed that the morphology of TRGOs has a crucial impact on the distribution of PANI in the composites. A more homogenous distribution of PANI was achieved for PANI/TRGO-700 due to the higher degree of exfoliation of the starting material TRGO-700. The synthesized composites were investigated as modifiers of glassy carbon electrodes (GCEs) for the electrochemical sensing of dopamine. Both, the PANI distribution and an appropriate oxygen content are key for DA sensing. Thus, the better performance of PANI/TRGO-700 as an active material was revealed, achieving a LOD of 430 nM, an excellent sensitivity (6.7 µA µM−1) and stability after 30 days.
publishDate 2022
dc.date.none.fl_str_mv 2022
2023
2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/288705
https://api.elsevier.com/content/abstract/scopus_id/85119931482
url http://hdl.handle.net/10261/288705
https://api.elsevier.com/content/abstract/scopus_id/85119931482
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Surfaces and Interfaces
https://doi.org/10.1016/j.surfin.2021.101606
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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