Characterization of cobalt- and copper hexacyanoferrate-modified carbon film electrodes for redox-mediated biosensors

Detalhes bibliográficos
Autor(a) principal: Pauliukaite, Rasa
Data de Publicação: 2005
Outros Autores: Florescu, Monica, Brett, Christopher M. A.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10316/7792
https://doi.org/10.1007/s10008-004-0632-8
Resumo: Cobalt and copper hexacyanoferrate films (CoHCF and CuHCF) were formed at carbon film electrodes by three different one-step processes: cycling the applied potential, application of a constant current, and chemically. All hexacyanoferrate films obtained were characterized electrochemically by cyclic voltammetry and electrochemical impedance spectroscopy. To evaluate their possible use as redox mediators for biosensors, they were applied to the determination of hydrogen peroxide in neutral phosphate buffer saline electrolyte. Chemically deposited CuHCF was found to be generally the most suitable as a mediator, although CoHCF made by potential cycling is the most useful when a very low detection limit is necessary.
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spelling Characterization of cobalt- and copper hexacyanoferrate-modified carbon film electrodes for redox-mediated biosensorsCobalt and copper hexacyanoferrate films (CoHCF and CuHCF) were formed at carbon film electrodes by three different one-step processes: cycling the applied potential, application of a constant current, and chemically. All hexacyanoferrate films obtained were characterized electrochemically by cyclic voltammetry and electrochemical impedance spectroscopy. To evaluate their possible use as redox mediators for biosensors, they were applied to the determination of hydrogen peroxide in neutral phosphate buffer saline electrolyte. Chemically deposited CuHCF was found to be generally the most suitable as a mediator, although CoHCF made by potential cycling is the most useful when a very low detection limit is necessary.2005info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/7792http://hdl.handle.net/10316/7792https://doi.org/10.1007/s10008-004-0632-8engJournal of Solid State Electrochemistry. 9:5 (2005) 354-362Pauliukaite, RasaFlorescu, MonicaBrett, Christopher M. A.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2020-05-25T13:15:13Zoai:estudogeral.uc.pt:10316/7792Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:01:28.051244Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Characterization of cobalt- and copper hexacyanoferrate-modified carbon film electrodes for redox-mediated biosensors
title Characterization of cobalt- and copper hexacyanoferrate-modified carbon film electrodes for redox-mediated biosensors
spellingShingle Characterization of cobalt- and copper hexacyanoferrate-modified carbon film electrodes for redox-mediated biosensors
Pauliukaite, Rasa
title_short Characterization of cobalt- and copper hexacyanoferrate-modified carbon film electrodes for redox-mediated biosensors
title_full Characterization of cobalt- and copper hexacyanoferrate-modified carbon film electrodes for redox-mediated biosensors
title_fullStr Characterization of cobalt- and copper hexacyanoferrate-modified carbon film electrodes for redox-mediated biosensors
title_full_unstemmed Characterization of cobalt- and copper hexacyanoferrate-modified carbon film electrodes for redox-mediated biosensors
title_sort Characterization of cobalt- and copper hexacyanoferrate-modified carbon film electrodes for redox-mediated biosensors
author Pauliukaite, Rasa
author_facet Pauliukaite, Rasa
Florescu, Monica
Brett, Christopher M. A.
author_role author
author2 Florescu, Monica
Brett, Christopher M. A.
author2_role author
author
dc.contributor.author.fl_str_mv Pauliukaite, Rasa
Florescu, Monica
Brett, Christopher M. A.
description Cobalt and copper hexacyanoferrate films (CoHCF and CuHCF) were formed at carbon film electrodes by three different one-step processes: cycling the applied potential, application of a constant current, and chemically. All hexacyanoferrate films obtained were characterized electrochemically by cyclic voltammetry and electrochemical impedance spectroscopy. To evaluate their possible use as redox mediators for biosensors, they were applied to the determination of hydrogen peroxide in neutral phosphate buffer saline electrolyte. Chemically deposited CuHCF was found to be generally the most suitable as a mediator, although CoHCF made by potential cycling is the most useful when a very low detection limit is necessary.
publishDate 2005
dc.date.none.fl_str_mv 2005
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://hdl.handle.net/10316/7792
http://hdl.handle.net/10316/7792
https://doi.org/10.1007/s10008-004-0632-8
url http://hdl.handle.net/10316/7792
https://doi.org/10.1007/s10008-004-0632-8
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Journal of Solid State Electrochemistry. 9:5 (2005) 354-362
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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