Influence of the supramolecular arrangement of iron phthalocyanine thin films on catecholamine oxidation

The versatility of iron phthalocyanine (FePc) to form distinct supramolecular arrangements in thin films, characterized by their thickness, molecular organization, morphology, and crystallinity, can be used to tune the electrochemical oxidation of catecholamines, becoming a promising material for se...

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Detalles Bibliográficos
Autores: Martin, Cibely S. [UNESP], Alessio, Priscila [UNESP], Crespilho, Frank N., Brett, Christopher M.A., Constantino, Carlos J.L. [UNESP]
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2019
País:Brasil
Institución:Universidade Estadual Paulista (UNESP)
Repositorio:Repositório Institucional da UNESP
Idioma:inglés
OAI Identifier:oai:repositorio.unesp.br:11449/190080
Acceso en línea:http://dx.doi.org/10.1016/j.jelechem.2019.01.029
http://hdl.handle.net/11449/190080
Access Level:acceso abierto
Palabra clave:Catecholamines
Electrodeposition
Iron phthalocyanine
Langmuir-Schaefer
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oai_identifier_str oai:repositorio.unesp.br:11449/190080
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spelling Influence of the supramolecular arrangement of iron phthalocyanine thin films on catecholamine oxidationCatecholaminesElectrodepositionIron phthalocyanineLangmuir-SchaeferThe versatility of iron phthalocyanine (FePc) to form distinct supramolecular arrangements in thin films, characterized by their thickness, molecular organization, morphology, and crystallinity, can be used to tune the electrochemical oxidation of catecholamines, becoming a promising material for sensing applications. Here, Langmuir-Schaefer (LS) and electrodeposition (ED) techniques have been used to produce thin films of FePc with different supramolecular arrangements on ITO electrodes. Both types of modified electrode were evaluated for the electrochemical oxidation of L-Dopa, dopamine (DA), norepinephrine (NEp), and epinephrine (Ep) in aqueous solution. The effect of scan rate, potential range, presence of oxygen, and pH were also evaluated, having an influence on the electrochemical oxidation of catecholamines. The FePc/ED modified electrodes showed two distinct peaks in the presence of mixtures of DA/L-Dopa and DA/Ep, while for FePc/LS modified electrodes an overlap of the oxidation waves was observed. This behaviour reveals the influence of the supramolecular arrangement of FePc on catecholamine oxidation. The FePc/LS modified electrodes showed a limit of detection of 0.024 μmol L −1 for DA and 0.168 μmol L −1 for L-Dopa, while FePc/ED showed limits of detection of 0.288 μmol L −1 and 0.564 μmol L −1 , respectively. The FePc films showed suitable properties for future application as catecholamine sensors.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Fundação para a Ciência e a TecnologiaSão Paulo State University (UNESP) School of Technology and Applied SciencesSão Carlos Institute of Chemistry University of São PauloDepartment of Chemistry Faculty of Sciences and Technology University of CoimbraSão Paulo State University (UNESP) School of Technology and Applied SciencesFundação para a Ciência e a Tecnologia: UID/EMS/00285/2013Universidade Estadual Paulista (Unesp)Universidade de São Paulo (USP)University of Coimbra2019-10-06T17:01:36Z2019-10-06T17:01:36Z2019-03-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article7-15http://dx.doi.org/10.1016/j.jelechem.2019.01.029Journal of Electroanalytical Chemistry, v. 836, p. 7-15.1572-6657http://hdl.handle.net/11449/19008010.1016/j.jelechem.2019.01.0292-s2.0-8506069522597271222032192630000-0002-1345-0540Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Electroanalytical Chemistryinfo:eu-repo/semantics/openAccessMartin, Cibely S. [UNESP]Alessio, Priscila [UNESP]Crespilho, Frank N.Brett, Christopher M.A.Constantino, Carlos J.L. [UNESP]2024-06-19T12:44:50Zoai:repositorio.unesp.br:11449/190080Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestrepositoriounesp@unesp.bropendoar:29462024-06-19T12:44:50Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Influence of the supramolecular arrangement of iron phthalocyanine thin films on catecholamine oxidation
title Influence of the supramolecular arrangement of iron phthalocyanine thin films on catecholamine oxidation
spellingShingle Influence of the supramolecular arrangement of iron phthalocyanine thin films on catecholamine oxidation
Martin, Cibely S. [UNESP]
Catecholamines
Electrodeposition
Iron phthalocyanine
Langmuir-Schaefer
title_short Influence of the supramolecular arrangement of iron phthalocyanine thin films on catecholamine oxidation
title_full Influence of the supramolecular arrangement of iron phthalocyanine thin films on catecholamine oxidation
title_fullStr Influence of the supramolecular arrangement of iron phthalocyanine thin films on catecholamine oxidation
title_full_unstemmed Influence of the supramolecular arrangement of iron phthalocyanine thin films on catecholamine oxidation
title_sort Influence of the supramolecular arrangement of iron phthalocyanine thin films on catecholamine oxidation
dc.creator.none.fl_str_mv Martin, Cibely S. [UNESP]
Alessio, Priscila [UNESP]
Crespilho, Frank N.
Brett, Christopher M.A.
Constantino, Carlos J.L. [UNESP]
author Martin, Cibely S. [UNESP]
author_facet Martin, Cibely S. [UNESP]
Alessio, Priscila [UNESP]
Crespilho, Frank N.
Brett, Christopher M.A.
Constantino, Carlos J.L. [UNESP]
author_role author
author2 Alessio, Priscila [UNESP]
Crespilho, Frank N.
Brett, Christopher M.A.
Constantino, Carlos J.L. [UNESP]
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Universidade de São Paulo (USP)
University of Coimbra
dc.subject.por.fl_str_mv Catecholamines
Electrodeposition
Iron phthalocyanine
Langmuir-Schaefer
topic Catecholamines
Electrodeposition
Iron phthalocyanine
Langmuir-Schaefer
description The versatility of iron phthalocyanine (FePc) to form distinct supramolecular arrangements in thin films, characterized by their thickness, molecular organization, morphology, and crystallinity, can be used to tune the electrochemical oxidation of catecholamines, becoming a promising material for sensing applications. Here, Langmuir-Schaefer (LS) and electrodeposition (ED) techniques have been used to produce thin films of FePc with different supramolecular arrangements on ITO electrodes. Both types of modified electrode were evaluated for the electrochemical oxidation of L-Dopa, dopamine (DA), norepinephrine (NEp), and epinephrine (Ep) in aqueous solution. The effect of scan rate, potential range, presence of oxygen, and pH were also evaluated, having an influence on the electrochemical oxidation of catecholamines. The FePc/ED modified electrodes showed two distinct peaks in the presence of mixtures of DA/L-Dopa and DA/Ep, while for FePc/LS modified electrodes an overlap of the oxidation waves was observed. This behaviour reveals the influence of the supramolecular arrangement of FePc on catecholamine oxidation. The FePc/LS modified electrodes showed a limit of detection of 0.024 μmol L −1 for DA and 0.168 μmol L −1 for L-Dopa, while FePc/ED showed limits of detection of 0.288 μmol L −1 and 0.564 μmol L −1 , respectively. The FePc films showed suitable properties for future application as catecholamine sensors.
publishDate 2019
dc.date.none.fl_str_mv 2019-10-06T17:01:36Z
2019-10-06T17:01:36Z
2019-03-01
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1016/j.jelechem.2019.01.029
Journal of Electroanalytical Chemistry, v. 836, p. 7-15.
1572-6657
http://hdl.handle.net/11449/190080
10.1016/j.jelechem.2019.01.029
2-s2.0-85060695225
9727122203219263
0000-0002-1345-0540
url http://dx.doi.org/10.1016/j.jelechem.2019.01.029
http://hdl.handle.net/11449/190080
identifier_str_mv Journal of Electroanalytical Chemistry, v. 836, p. 7-15.
1572-6657
10.1016/j.jelechem.2019.01.029
2-s2.0-85060695225
9727122203219263
0000-0002-1345-0540
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Journal of Electroanalytical Chemistry
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 7-15
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv repositoriounesp@unesp.br
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score 15,300724

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