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

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Resumo:Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Autores principais:Martin, Cibely S.
Outros Autores:Alessio, Priscila; Crespilho, Frank N.; Brett, Christopher M.A.; Constantino, Carlos J.L.
Assunto:Catecholamines Electrodeposition Iron phthalocyanine Langmuir-Schaefer
Ano:2019
País:Brasil
Tipo de documento:artigo
Tipo de acesso:acesso aberto
Instituição associada:IBICT
Idioma:inglês
Origem:Oasisbr
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author Martin, Cibely S.
author2 Alessio, Priscila
Crespilho, Frank N.
Brett, Christopher M.A.
Constantino, Carlos J.L.
author2_role author
author
author
author
author_facet Martin, Cibely S.
Alessio, Priscila
Crespilho, Frank N.
Brett, Christopher M.A.
Constantino, Carlos J.L.
author_role author
country_str BR
creators_json_txt [{\"Person.name\":\"Martin, Cibely S.\"},{\"Person.name\":\"Alessio, Priscila\"},{\"Person.name\":\"Crespilho, Frank N.\"},{\"Person.name\":\"Brett, Christopher M.A.\"},{\"Person.name\":\"Constantino, Carlos J.L.\"}]
datacite.creators.creator.creatorName.fl_str_mv Martin, Cibely S.
Alessio, Priscila
Crespilho, Frank N.
Brett, Christopher M.A.
Constantino, Carlos J.L.
datacite.date.Accepted.fl_str_mv 2019-03-01T00:00:00Z
datacite.date.available.fl_str_mv 2019-10-06T17:01:36Z
datacite.date.embargoed.fl_str_mv 2019-10-06T17:01:36Z
datacite.rights.fl_str_mv http://purl.org/coar/access_right/c_abf2
datacite.subjects.subject.fl_str_mv Catecholamines
Electrodeposition
Iron phthalocyanine
Langmuir-Schaefer
datacite.titles.title.fl_str_mv Influence of the supramolecular arrangement of iron phthalocyanine thin films on catecholamine oxidation
dc.creator.none.fl_str_mv Martin, Cibely S.
Alessio, Priscila
Crespilho, Frank N.
Brett, Christopher M.A.
Constantino, Carlos J.L.
dc.date.Accepted.fl_str_mv 2019-03-01T00:00:00Z
dc.date.available.fl_str_mv 2019-10-06T17:01:36Z
dc.date.embargoed.fl_str_mv 2019-10-06T17:01:36Z
dc.description.none.fl_str_mv 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 Tecnologia
Fundação para a Ciência e a Tecnologia: UID/EMS/00285/2013
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.
dc.format.none.fl_str_mv 7-15
dc.identifier.none.fl_str_mv http://hdl.handle.net/11449/190080
dc.language.none.fl_str_mv eng
dc.rights.none.fl_str_mv http://purl.org/coar/access_right/c_abf2
dc.source.none.fl_str_mv reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
dc.subject.none.fl_str_mv Catecholamines
Electrodeposition
Iron phthalocyanine
Langmuir-Schaefer
dc.title.fl_str_mv Influence of the supramolecular arrangement of iron phthalocyanine thin films on catecholamine oxidation
dc.type.none.fl_str_mv http://purl.org/coar/resource_type/c_6501
description Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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eu_rights_str_mv openAccess
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identifier.url.fl_str_mv http://hdl.handle.net/11449/190080
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oai_identifier_str oai:repositorio.unesp.br:11449/190080
organization_str_mv urn:organizationAcronym:oasisbr
person_str_mv Martin, Cibely S.
Alessio, Priscila
Crespilho, Frank N.
Brett, Christopher M.A.
Constantino, Carlos J.L.
publishDate 2019
repo_facet_str urn:repositoryAcronym:oasisbr{{{_:::_}}}Oasisbr
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spelling Influence of the supramolecular arrangement of iron phthalocyanine thin films on catecholamine oxidationMartin, Cibely S.Alessio, PriscilaCrespilho, Frank N.Brett, Christopher M.A.Constantino, Carlos J.L.CatecholaminesElectrodepositionIron phthalocyanineLangmuir-Schaeferopen accesshttp://purl.org/coar/access_right/c_abf2http://hdl.handle.net/11449/190080HandleJournal of Electroanalytical Chemistry, v. 836, p. 7-15.N/AHasVersion1572-6657N/AHasVersion2-s2.0-85060695225N/AHasVersion9727122203219263N/AHasVersion0000-0002-1345-0540N/AHasVersionhttps://doi.org/http://dx.doi.org/10.1016/j.jelechem.2019.01.029DOIhttp://hdl.handle.net/11449/190080Handlehttps://doi.org/10.1016/j.jelechem.2019.01.029DOI2019-10-06T17:01:36Z2019-10-062019-03-01T00:00:00ZCoordenação 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 TecnologiaFundação para a Ciência e a Tecnologia: UID/EMS/00285/2013The 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.eng7-15reponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPjournal articlehttp://purl.org/coar/resource_type/c_6501literatureVoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85
spellingShingle Influence of the supramolecular arrangement of iron phthalocyanine thin films on catecholamine oxidation
Martin, Cibely S.
Catecholamines
Electrodeposition
Iron phthalocyanine
Langmuir-Schaefer
status SINGLETON
status_str VoR
subject.fl_str_mv Catecholamines
Electrodeposition
Iron phthalocyanine
Langmuir-Schaefer
title 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_short 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
topic Catecholamines
Electrodeposition
Iron phthalocyanine
Langmuir-Schaefer
topic_facet Catecholamines
Electrodeposition
Iron phthalocyanine
Langmuir-Schaefer
url http://hdl.handle.net/11449/190080
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