Application of oxo-manganese complex immobilized on ion-exchange polymeric film as biomimetic sensor for nitrite ions
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.snb.2015.01.021 http://hdl.handle.net/11449/167852 |
Resumo: | Abstract A biomimetic sensor based on oxo-bridged dinuclear manganese-phenanthroline complex immobilized into an ion-exchange polymeric film deposited on glassy carbon electrode was applied to detection of nitrite ions and studied according to their kinetics parameters. The cyclic voltammetry at the modified electrode in universal buffer showed a two electron oxidation/reduction of the couple Mn<sup>IV</sup>(μ-O)<inf>2</inf>Mn<sup>IV</sup>/Mn<sup>III</sup>(μ-O)<inf>2</inf>Mn<sup>III</sup> and electrocatalytic property toward nitrite oxidation with a decrease of the overpotential of 320 mV compared with the bare glassy carbon electrode. A plot of the anodic current vs. the nitrite ions concentration for potential fixed (+0.480) at the biomimetic sensor was linear in the 2.49 × 10<sup>-6</sup> to 9.90 × 10<sup>-6</sup> mol L<sup>-1</sup> concentration range with a detection limit of 6.50 × 10<sup>-6</sup> mol L<sup>-1</sup>. The kinetic mechanism was derived by Michaelis-Menten, then, kinetics parameters were calculated through four methods: Lineweaver-Burke, Eadie-Hofstee, Hanes-Woolf and Nonlinear curve fitting. The best results were Michaelis-Menten rate constant = 3.42 μmol L<sup>-1</sup>, catalytic rate constant = 0.0114 s<sup>-1</sup>, catalytic efficiency = 3.3 × 10<sup>3</sup> (mol L)<sup>-1</sup> s<sup>-1</sup> and heterogeneous electrochemical rate constant = 1.15 × 10<sup>-5</sup> cm s<sup>-1</sup>. |
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Repositório Institucional da UNESP |
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Application of oxo-manganese complex immobilized on ion-exchange polymeric film as biomimetic sensor for nitrite ionsBiomimetic activityBiomimetic oxo-manganese complexElectrocatalytic nitrite sensorElectrochemical sensorMichaelis-MentenNitrite oxidaseAbstract A biomimetic sensor based on oxo-bridged dinuclear manganese-phenanthroline complex immobilized into an ion-exchange polymeric film deposited on glassy carbon electrode was applied to detection of nitrite ions and studied according to their kinetics parameters. The cyclic voltammetry at the modified electrode in universal buffer showed a two electron oxidation/reduction of the couple Mn<sup>IV</sup>(μ-O)<inf>2</inf>Mn<sup>IV</sup>/Mn<sup>III</sup>(μ-O)<inf>2</inf>Mn<sup>III</sup> and electrocatalytic property toward nitrite oxidation with a decrease of the overpotential of 320 mV compared with the bare glassy carbon electrode. A plot of the anodic current vs. the nitrite ions concentration for potential fixed (+0.480) at the biomimetic sensor was linear in the 2.49 × 10<sup>-6</sup> to 9.90 × 10<sup>-6</sup> mol L<sup>-1</sup> concentration range with a detection limit of 6.50 × 10<sup>-6</sup> mol L<sup>-1</sup>. The kinetic mechanism was derived by Michaelis-Menten, then, kinetics parameters were calculated through four methods: Lineweaver-Burke, Eadie-Hofstee, Hanes-Woolf and Nonlinear curve fitting. The best results were Michaelis-Menten rate constant = 3.42 μmol L<sup>-1</sup>, catalytic rate constant = 0.0114 s<sup>-1</sup>, catalytic efficiency = 3.3 × 10<sup>3</sup> (mol L)<sup>-1</sup> s<sup>-1</sup> and heterogeneous electrochemical rate constant = 1.15 × 10<sup>-5</sup> cm s<sup>-1</sup>.Faculty of Science and Technology, São Paulo State University (UNESP), Roberto Simonsen St, 305Faculty of Science and Technology, São Paulo State University (UNESP), Roberto Simonsen St, 305Universidade Estadual Paulista (Unesp)Machini, Wesley B.S. [UNESP]Teixeira, Marcos F.S. [UNESP]2018-12-11T16:38:36Z2018-12-11T16:38:36Z2015-06-02info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article58-64application/pdfhttp://dx.doi.org/10.1016/j.snb.2015.01.021Sensors and Actuators, B: Chemical, v. 217, p. 58-64.0925-4005http://hdl.handle.net/11449/16785210.1016/j.snb.2015.01.0212-s2.0-849305368472-s2.0-84930536847.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengSensors and Actuators, B: Chemical1,406info:eu-repo/semantics/openAccess2023-11-17T06:07:57Zoai:repositorio.unesp.br:11449/167852Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:53:22.382854Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Application of oxo-manganese complex immobilized on ion-exchange polymeric film as biomimetic sensor for nitrite ions |
title |
Application of oxo-manganese complex immobilized on ion-exchange polymeric film as biomimetic sensor for nitrite ions |
spellingShingle |
Application of oxo-manganese complex immobilized on ion-exchange polymeric film as biomimetic sensor for nitrite ions Machini, Wesley B.S. [UNESP] Biomimetic activity Biomimetic oxo-manganese complex Electrocatalytic nitrite sensor Electrochemical sensor Michaelis-Menten Nitrite oxidase |
title_short |
Application of oxo-manganese complex immobilized on ion-exchange polymeric film as biomimetic sensor for nitrite ions |
title_full |
Application of oxo-manganese complex immobilized on ion-exchange polymeric film as biomimetic sensor for nitrite ions |
title_fullStr |
Application of oxo-manganese complex immobilized on ion-exchange polymeric film as biomimetic sensor for nitrite ions |
title_full_unstemmed |
Application of oxo-manganese complex immobilized on ion-exchange polymeric film as biomimetic sensor for nitrite ions |
title_sort |
Application of oxo-manganese complex immobilized on ion-exchange polymeric film as biomimetic sensor for nitrite ions |
author |
Machini, Wesley B.S. [UNESP] |
author_facet |
Machini, Wesley B.S. [UNESP] Teixeira, Marcos F.S. [UNESP] |
author_role |
author |
author2 |
Teixeira, Marcos F.S. [UNESP] |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Machini, Wesley B.S. [UNESP] Teixeira, Marcos F.S. [UNESP] |
dc.subject.por.fl_str_mv |
Biomimetic activity Biomimetic oxo-manganese complex Electrocatalytic nitrite sensor Electrochemical sensor Michaelis-Menten Nitrite oxidase |
topic |
Biomimetic activity Biomimetic oxo-manganese complex Electrocatalytic nitrite sensor Electrochemical sensor Michaelis-Menten Nitrite oxidase |
description |
Abstract A biomimetic sensor based on oxo-bridged dinuclear manganese-phenanthroline complex immobilized into an ion-exchange polymeric film deposited on glassy carbon electrode was applied to detection of nitrite ions and studied according to their kinetics parameters. The cyclic voltammetry at the modified electrode in universal buffer showed a two electron oxidation/reduction of the couple Mn<sup>IV</sup>(μ-O)<inf>2</inf>Mn<sup>IV</sup>/Mn<sup>III</sup>(μ-O)<inf>2</inf>Mn<sup>III</sup> and electrocatalytic property toward nitrite oxidation with a decrease of the overpotential of 320 mV compared with the bare glassy carbon electrode. A plot of the anodic current vs. the nitrite ions concentration for potential fixed (+0.480) at the biomimetic sensor was linear in the 2.49 × 10<sup>-6</sup> to 9.90 × 10<sup>-6</sup> mol L<sup>-1</sup> concentration range with a detection limit of 6.50 × 10<sup>-6</sup> mol L<sup>-1</sup>. The kinetic mechanism was derived by Michaelis-Menten, then, kinetics parameters were calculated through four methods: Lineweaver-Burke, Eadie-Hofstee, Hanes-Woolf and Nonlinear curve fitting. The best results were Michaelis-Menten rate constant = 3.42 μmol L<sup>-1</sup>, catalytic rate constant = 0.0114 s<sup>-1</sup>, catalytic efficiency = 3.3 × 10<sup>3</sup> (mol L)<sup>-1</sup> s<sup>-1</sup> and heterogeneous electrochemical rate constant = 1.15 × 10<sup>-5</sup> cm s<sup>-1</sup>. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-06-02 2018-12-11T16:38:36Z 2018-12-11T16:38:36Z |
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.snb.2015.01.021 Sensors and Actuators, B: Chemical, v. 217, p. 58-64. 0925-4005 http://hdl.handle.net/11449/167852 10.1016/j.snb.2015.01.021 2-s2.0-84930536847 2-s2.0-84930536847.pdf |
url |
http://dx.doi.org/10.1016/j.snb.2015.01.021 http://hdl.handle.net/11449/167852 |
identifier_str_mv |
Sensors and Actuators, B: Chemical, v. 217, p. 58-64. 0925-4005 10.1016/j.snb.2015.01.021 2-s2.0-84930536847 2-s2.0-84930536847.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Sensors and Actuators, B: Chemical 1,406 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
58-64 application/pdf |
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 |
|
_version_ |
1808128872164622336 |