Newly designed dual-mode electrochemical sensor onto a single polydimethylsiloxane-based chip
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.talanta.2020.121611 http://hdl.handle.net/11449/205170 |
Resumo: | Here we present a planar polydimethylsiloxane (PDMS)-based millifluidic device in which the channel (at a serpentine-shape) and a new design of electrochemical sensor (dual-mode detection) are assembled into a single chip. The platform makes use of a fully integrated reservoir to place the reference electrode, separating it from the flowing stream. The device was properly characterized aiming to evaluate the influences of channel geometries and diameters, and the electrochemical properties were improved compared with the classical reference electrode configuration. To investigate the applicability of the proposed millifluidic device, amperometric detection was used for the analysis of tap and lake water as well as groundwater samples to determine salicylic acid — selected as a model analyte. Our experimental results have demonstrated a successful prospect as amperometric detection in PDMS-based chip and showed high tolerance to disturbance by external action provided in the use of electronic micropipette and no surface inactivation from sample-interference. |
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Repositório Institucional da UNESP |
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Newly designed dual-mode electrochemical sensor onto a single polydimethylsiloxane-based chipDual-mode sensorIntegrated flow cellNewly designed electroanalytical chipSalicylic acidHere we present a planar polydimethylsiloxane (PDMS)-based millifluidic device in which the channel (at a serpentine-shape) and a new design of electrochemical sensor (dual-mode detection) are assembled into a single chip. The platform makes use of a fully integrated reservoir to place the reference electrode, separating it from the flowing stream. The device was properly characterized aiming to evaluate the influences of channel geometries and diameters, and the electrochemical properties were improved compared with the classical reference electrode configuration. To investigate the applicability of the proposed millifluidic device, amperometric detection was used for the analysis of tap and lake water as well as groundwater samples to determine salicylic acid — selected as a model analyte. Our experimental results have demonstrated a successful prospect as amperometric detection in PDMS-based chip and showed high tolerance to disturbance by external action provided in the use of electronic micropipette and no surface inactivation from sample-interference.Financiadora de Estudos e ProjetosFundação de Apoio ao Desenvolvimento do Ensino, Ciência e Tecnologia do Estado de Mato Grosso do SulFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Faculdade de Ciências Exatas e Tecnologia Universidade Federal da Grande Dourados, Rodovia Dourados/Itahum, km 12. CEP 79804-970Institute of Physics Universidade Federal de Mato Grosso do Sul, CEPDepartamento de Química Fundamental Instituto de Química Universidade de São Paulo, Av. Prof. Lineu Prestes, 748, CEPUNESP National Institute for Alternative Technologies of Detection Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM) Institute of Chemistry, CEP 14800-900UNESP National Institute for Alternative Technologies of Detection Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM) Institute of Chemistry, CEP 14800-900Financiadora de Estudos e Projetos: 04.13.0448.00/2013Fundação de Apoio ao Desenvolvimento do Ensino, Ciência e Tecnologia do Estado de Mato Grosso do Sul: 045/2018Fundação de Apoio ao Desenvolvimento do Ensino, Ciência e Tecnologia do Estado de Mato Grosso do Sul: 099/2016FAPESP: 2014/50867–3CNPq: 305691/2018–0CNPq: 307377/2018–0CNPq: 311847/2018–8CNPq: 402832/2016–7CNPq: 465571/2014–0CAPES: 88881.119436/2016–01Universidade Federal da Grande DouradosUniversidade Federal de Mato Grosso do Sul (UFMS)Universidade de São Paulo (USP)Universidade Estadual Paulista (Unesp)Maximiano, Elizabete MariaSequinel, ThiagoMartins, Cauê AlvesAngnes, LucioGonçalves Trindade, Magno Aparecido [UNESP]2021-06-25T10:11:01Z2021-06-25T10:11:01Z2021-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.talanta.2020.121611Talanta, v. 221.0039-9140http://hdl.handle.net/11449/20517010.1016/j.talanta.2020.1216112-s2.0-85090570462Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengTalantainfo:eu-repo/semantics/openAccess2021-10-23T11:16:52Zoai:repositorio.unesp.br:11449/205170Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T11:16:52Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Newly designed dual-mode electrochemical sensor onto a single polydimethylsiloxane-based chip |
title |
Newly designed dual-mode electrochemical sensor onto a single polydimethylsiloxane-based chip |
spellingShingle |
Newly designed dual-mode electrochemical sensor onto a single polydimethylsiloxane-based chip Maximiano, Elizabete Maria Dual-mode sensor Integrated flow cell Newly designed electroanalytical chip Salicylic acid |
title_short |
Newly designed dual-mode electrochemical sensor onto a single polydimethylsiloxane-based chip |
title_full |
Newly designed dual-mode electrochemical sensor onto a single polydimethylsiloxane-based chip |
title_fullStr |
Newly designed dual-mode electrochemical sensor onto a single polydimethylsiloxane-based chip |
title_full_unstemmed |
Newly designed dual-mode electrochemical sensor onto a single polydimethylsiloxane-based chip |
title_sort |
Newly designed dual-mode electrochemical sensor onto a single polydimethylsiloxane-based chip |
author |
Maximiano, Elizabete Maria |
author_facet |
Maximiano, Elizabete Maria Sequinel, Thiago Martins, Cauê Alves Angnes, Lucio Gonçalves Trindade, Magno Aparecido [UNESP] |
author_role |
author |
author2 |
Sequinel, Thiago Martins, Cauê Alves Angnes, Lucio Gonçalves Trindade, Magno Aparecido [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Federal da Grande Dourados Universidade Federal de Mato Grosso do Sul (UFMS) Universidade de São Paulo (USP) Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Maximiano, Elizabete Maria Sequinel, Thiago Martins, Cauê Alves Angnes, Lucio Gonçalves Trindade, Magno Aparecido [UNESP] |
dc.subject.por.fl_str_mv |
Dual-mode sensor Integrated flow cell Newly designed electroanalytical chip Salicylic acid |
topic |
Dual-mode sensor Integrated flow cell Newly designed electroanalytical chip Salicylic acid |
description |
Here we present a planar polydimethylsiloxane (PDMS)-based millifluidic device in which the channel (at a serpentine-shape) and a new design of electrochemical sensor (dual-mode detection) are assembled into a single chip. The platform makes use of a fully integrated reservoir to place the reference electrode, separating it from the flowing stream. The device was properly characterized aiming to evaluate the influences of channel geometries and diameters, and the electrochemical properties were improved compared with the classical reference electrode configuration. To investigate the applicability of the proposed millifluidic device, amperometric detection was used for the analysis of tap and lake water as well as groundwater samples to determine salicylic acid — selected as a model analyte. Our experimental results have demonstrated a successful prospect as amperometric detection in PDMS-based chip and showed high tolerance to disturbance by external action provided in the use of electronic micropipette and no surface inactivation from sample-interference. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-06-25T10:11:01Z 2021-06-25T10:11:01Z 2021-01-01 |
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.talanta.2020.121611 Talanta, v. 221. 0039-9140 http://hdl.handle.net/11449/205170 10.1016/j.talanta.2020.121611 2-s2.0-85090570462 |
url |
http://dx.doi.org/10.1016/j.talanta.2020.121611 http://hdl.handle.net/11449/205170 |
identifier_str_mv |
Talanta, v. 221. 0039-9140 10.1016/j.talanta.2020.121611 2-s2.0-85090570462 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Talanta |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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_ |
1799964600753455104 |