Electrochemical sensors modified with combinations of sulfur containing phthalocyanines and capped gold nanoparticles: A study of the influence of the nature of the interaction between sensing materials

Producción Científica

Detalhes bibliográficos
Autores: Ruiz Carmuega, Ana Isabel, García Hernández, Celia, Ortiz, Javier, García Cabezón, Ana Cristina, Martín Pedrosa, Fernando, Sastre Santos, Ángela, Rodríguez Pérez, Miguel Ángel, Rodríguez Méndez, María Luz
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2019
País:España
Recursos:Universidad de Valladolid
Repositorio:UVaDOC. Repositorio Documental de la Universidad de Valladolid
OAI Identifier:oai:uvadoc.uva.es:10324/40955
Acesso em linha:https://doi.org/10.3390/nano9111506
http://uvadoc.uva.es/handle/10324/40955
Access Level:acceso abierto
Palavra-chave:Electrochemical sensors
Sensores electroquímicos
Phthalocyanine
Ftalocianina
Gold nanoparticles
Nanopartículas de oro
Catechol
Catecol
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spelling Electrochemical sensors modified with combinations of sulfur containing phthalocyanines and capped gold nanoparticles: A study of the influence of the nature of the interaction between sensing materialsRuiz Carmuega, Ana IsabelGarcía Hernández, CeliaOrtiz, JavierGarcía Cabezón, Ana CristinaMartín Pedrosa, FernandoSastre Santos, ÁngelaRodríguez Pérez, Miguel ÁngelRodríguez Méndez, María LuzElectrochemical sensorsSensores electroquímicosPhthalocyanineFtalocianinaGold nanoparticlesNanopartículas de oroCatecholCatecolProducción CientíficaVoltametric sensors formed by the combination of a sulfur-substituted zinc phthalocyanine (ZnPcRS) and gold nanoparticles capped with tetraoctylammonium bromide (AuNPtOcBr) have been developed. The influence of the nature of the interaction between both components in the response towards catechol has been evaluated. Electrodes modified with a mixture of nanoparticles and phthalocyanine (AuNPtOcBr/ZnPcRS) show an increase in the intensity of the peak associated with the reduction of catechol. Electrodes modified with a covalent adduct-both component are linked through a thioether bond-(AuNPtOcBr-S-ZnPcR), show an increase in the intensity of the oxidation peak. Voltammograms registered at increasing scan rates show that charge transfer coefficients are different in both types of electrodes confirming that the kinetics of the electrochemical reaction is influenced by the nature of the interaction between both electrocatalytic materials. The limits of detection attained are 0.9 × 10−6 mol∙L−1 for the electrode modified with the mixture AuNPtOcBr/ZnPcRS and 1.3 × 10−7 mol∙L−1 for the electrode modified with the covalent adduct AuNPtOcBr-S-ZnPcR. These results indicate that the establishment of covalent bonds between nanoparticles and phthalocyanines can be a good strategy to obtain sensors with enhanced performance, improving the charge transfer rate and the detection limits of voltammetric sensors.Ministerio de Economía, Industria y Competitividad - Fondo Europeo de Desarrollo Regional (projects RTI2018-097990-B-I00 / CTQ2017-87102-R)Junta de Castilla y Leon - Fondo Europeo de Desarrollo Regional (project VA275P18)MDPI2019info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://doi.org/10.3390/nano9111506http://uvadoc.uva.es/handle/10324/40955reponame:UVaDOC. Repositorio Documental de la Universidad de Valladolidinstname:Universidad de ValladolidIngléshttps://www.mdpi.com/2079-4991/9/11/1506info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/oai:uvadoc.uva.es:10324/409552026-06-13T12:44:47Z
dc.title.none.fl_str_mv Electrochemical sensors modified with combinations of sulfur containing phthalocyanines and capped gold nanoparticles: A study of the influence of the nature of the interaction between sensing materials
title Electrochemical sensors modified with combinations of sulfur containing phthalocyanines and capped gold nanoparticles: A study of the influence of the nature of the interaction between sensing materials
spellingShingle Electrochemical sensors modified with combinations of sulfur containing phthalocyanines and capped gold nanoparticles: A study of the influence of the nature of the interaction between sensing materials
Ruiz Carmuega, Ana Isabel
Electrochemical sensors
Sensores electroquímicos
Phthalocyanine
Ftalocianina
Gold nanoparticles
Nanopartículas de oro
Catechol
Catecol
title_short Electrochemical sensors modified with combinations of sulfur containing phthalocyanines and capped gold nanoparticles: A study of the influence of the nature of the interaction between sensing materials
title_full Electrochemical sensors modified with combinations of sulfur containing phthalocyanines and capped gold nanoparticles: A study of the influence of the nature of the interaction between sensing materials
title_fullStr Electrochemical sensors modified with combinations of sulfur containing phthalocyanines and capped gold nanoparticles: A study of the influence of the nature of the interaction between sensing materials
title_full_unstemmed Electrochemical sensors modified with combinations of sulfur containing phthalocyanines and capped gold nanoparticles: A study of the influence of the nature of the interaction between sensing materials
title_sort Electrochemical sensors modified with combinations of sulfur containing phthalocyanines and capped gold nanoparticles: A study of the influence of the nature of the interaction between sensing materials
dc.creator.none.fl_str_mv Ruiz Carmuega, Ana Isabel
García Hernández, Celia
Ortiz, Javier
García Cabezón, Ana Cristina
Martín Pedrosa, Fernando
Sastre Santos, Ángela
Rodríguez Pérez, Miguel Ángel
Rodríguez Méndez, María Luz
author Ruiz Carmuega, Ana Isabel
author_facet Ruiz Carmuega, Ana Isabel
García Hernández, Celia
Ortiz, Javier
García Cabezón, Ana Cristina
Martín Pedrosa, Fernando
Sastre Santos, Ángela
Rodríguez Pérez, Miguel Ángel
Rodríguez Méndez, María Luz
author_role author
author2 García Hernández, Celia
Ortiz, Javier
García Cabezón, Ana Cristina
Martín Pedrosa, Fernando
Sastre Santos, Ángela
Rodríguez Pérez, Miguel Ángel
Rodríguez Méndez, María Luz
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Electrochemical sensors
Sensores electroquímicos
Phthalocyanine
Ftalocianina
Gold nanoparticles
Nanopartículas de oro
Catechol
Catecol
topic Electrochemical sensors
Sensores electroquímicos
Phthalocyanine
Ftalocianina
Gold nanoparticles
Nanopartículas de oro
Catechol
Catecol
description Producción Científica
publishDate 2019
dc.date.none.fl_str_mv 2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://doi.org/10.3390/nano9111506
http://uvadoc.uva.es/handle/10324/40955
url https://doi.org/10.3390/nano9111506
http://uvadoc.uva.es/handle/10324/40955
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://www.mdpi.com/2079-4991/9/11/1506
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:UVaDOC. Repositorio Documental de la Universidad de Valladolid
instname:Universidad de Valladolid
instname_str Universidad de Valladolid
reponame_str UVaDOC. Repositorio Documental de la Universidad de Valladolid
collection UVaDOC. Repositorio Documental de la Universidad de Valladolid
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,301603

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