Single-walled carbon nanotubes covalently functionalized with cysteine: A new alternative for the highly sensitive and selective Cd(II) quantification

Autores
Gutierrez, Fabiana Andrea; Gonzalez Dominguez, Jose Miguel; Ansón Casaos, Alejandro; Hernández Ferrer, Javier; Rubianes, María Dolores; Martinez, Maria Teresa; Rivas, Gustavo Adolfo
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
This work is focused on the development of an electrochemical sensor for the quantification of Cd(II) based on the use of glassy carbon electrodes (GCE) modified with a dispersion of single-walled carbon nanotubes (SWCNTs) covalently functionalized with cysteine (Cys). Cd(II) is preconcentrated at the electrode surface by complex formation at open circuit potential, followed by the reduction at −0.900 V and the final anodic voltammetric stripping in a 0.020 M acetate buffer solution pH 5.00. The functionalization of SWCNTs was performed through the reaction between the carboxylic groups of oxidized SWCNT and amino groups of S-triphenylmethyl cysteine using a coupling chemistry agent based on benzotriazol for the activation of carboxylic residues. There was a linear relationship between Cd oxidation signal and Cd(II) concentration between 1.0 and 300.0 μgL−1 Cd(II), with a sensitivity of (49 ± 2) × 10−3 μAμg−1L and a detection limit of 0.3 μgL−1. The reproducibility was 1.7% using the same dispersion and 3.8% using 3 different dispersions. The sensor was challenged with groundwater samples enriched with Cd(II) showing excellent recovery percentages and excellent agreement with the values obtained by ICP-MS.
Fil: Gutierrez, Fabiana Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Gonzalez Dominguez, Jose Miguel. Consejo Superior de Investigaciones Científicas. Instituto de Carboquímica; España
Fil: Ansón Casaos, Alejandro. Consejo Superior de Investigaciones Científicas. Instituto de Carboquímica; España
Fil: Hernández Ferrer, Javier. Consejo Superior de Investigaciones Científicas. Instituto de Carboquímica; España
Fil: Rubianes, María Dolores. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Martinez, Maria Teresa. Consejo Superior de Investigaciones Científicas. Instituto de Carboquímica; España
Fil: Rivas, Gustavo Adolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Materia
Cadmium
Carbon Nanotubes
Complex Formation
Covalently Functionalization
Cysteine-Functionalized Swcnt
Electrochemical Sensor
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/63990
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/63990
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Single-walled carbon nanotubes covalently functionalized with cysteine: A new alternative for the highly sensitive and selective Cd(II) quantificationGutierrez, Fabiana AndreaGonzalez Dominguez, Jose MiguelAnsón Casaos, AlejandroHernández Ferrer, JavierRubianes, María DoloresMartinez, Maria TeresaRivas, Gustavo AdolfoCadmiumCarbon NanotubesComplex FormationCovalently FunctionalizationCysteine-Functionalized SwcntElectrochemical Sensorhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1This work is focused on the development of an electrochemical sensor for the quantification of Cd(II) based on the use of glassy carbon electrodes (GCE) modified with a dispersion of single-walled carbon nanotubes (SWCNTs) covalently functionalized with cysteine (Cys). Cd(II) is preconcentrated at the electrode surface by complex formation at open circuit potential, followed by the reduction at −0.900 V and the final anodic voltammetric stripping in a 0.020 M acetate buffer solution pH 5.00. The functionalization of SWCNTs was performed through the reaction between the carboxylic groups of oxidized SWCNT and amino groups of S-triphenylmethyl cysteine using a coupling chemistry agent based on benzotriazol for the activation of carboxylic residues. There was a linear relationship between Cd oxidation signal and Cd(II) concentration between 1.0 and 300.0 μgL−1 Cd(II), with a sensitivity of (49 ± 2) × 10−3 μAμg−1L and a detection limit of 0.3 μgL−1. The reproducibility was 1.7% using the same dispersion and 3.8% using 3 different dispersions. The sensor was challenged with groundwater samples enriched with Cd(II) showing excellent recovery percentages and excellent agreement with the values obtained by ICP-MS.Fil: Gutierrez, Fabiana Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; ArgentinaFil: Gonzalez Dominguez, Jose Miguel. Consejo Superior de Investigaciones Científicas. Instituto de Carboquímica; EspañaFil: Ansón Casaos, Alejandro. Consejo Superior de Investigaciones Científicas. Instituto de Carboquímica; EspañaFil: Hernández Ferrer, Javier. Consejo Superior de Investigaciones Científicas. Instituto de Carboquímica; EspañaFil: Rubianes, María Dolores. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; ArgentinaFil: Martinez, Maria Teresa. Consejo Superior de Investigaciones Científicas. Instituto de Carboquímica; EspañaFil: Rivas, Gustavo Adolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; ArgentinaElsevier Science Sa2017-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/63990Gutierrez, Fabiana Andrea; Gonzalez Dominguez, Jose Miguel; Ansón Casaos, Alejandro; Hernández Ferrer, Javier; Rubianes, María Dolores; et al.; Single-walled carbon nanotubes covalently functionalized with cysteine: A new alternative for the highly sensitive and selective Cd(II) quantification; Elsevier Science Sa; Sensors and Actuators B: Chemical; 249; 10-2017; 506-5140925-4005CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.snb.2017.04.026info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0925400517306263info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:59:01Zoai:ri.conicet.gov.ar:11336/63990instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:59:01.524CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Single-walled carbon nanotubes covalently functionalized with cysteine: A new alternative for the highly sensitive and selective Cd(II) quantification
title Single-walled carbon nanotubes covalently functionalized with cysteine: A new alternative for the highly sensitive and selective Cd(II) quantification
spellingShingle Single-walled carbon nanotubes covalently functionalized with cysteine: A new alternative for the highly sensitive and selective Cd(II) quantification
Gutierrez, Fabiana Andrea
Cadmium
Carbon Nanotubes
Complex Formation
Covalently Functionalization
Cysteine-Functionalized Swcnt
Electrochemical Sensor
title_short Single-walled carbon nanotubes covalently functionalized with cysteine: A new alternative for the highly sensitive and selective Cd(II) quantification
title_full Single-walled carbon nanotubes covalently functionalized with cysteine: A new alternative for the highly sensitive and selective Cd(II) quantification
title_fullStr Single-walled carbon nanotubes covalently functionalized with cysteine: A new alternative for the highly sensitive and selective Cd(II) quantification
title_full_unstemmed Single-walled carbon nanotubes covalently functionalized with cysteine: A new alternative for the highly sensitive and selective Cd(II) quantification
title_sort Single-walled carbon nanotubes covalently functionalized with cysteine: A new alternative for the highly sensitive and selective Cd(II) quantification
dc.creator.none.fl_str_mv Gutierrez, Fabiana Andrea
Gonzalez Dominguez, Jose Miguel
Ansón Casaos, Alejandro
Hernández Ferrer, Javier
Rubianes, María Dolores
Martinez, Maria Teresa
Rivas, Gustavo Adolfo
author Gutierrez, Fabiana Andrea
author_facet Gutierrez, Fabiana Andrea
Gonzalez Dominguez, Jose Miguel
Ansón Casaos, Alejandro
Hernández Ferrer, Javier
Rubianes, María Dolores
Martinez, Maria Teresa
Rivas, Gustavo Adolfo
author_role author
author2 Gonzalez Dominguez, Jose Miguel
Ansón Casaos, Alejandro
Hernández Ferrer, Javier
Rubianes, María Dolores
Martinez, Maria Teresa
Rivas, Gustavo Adolfo
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Cadmium
Carbon Nanotubes
Complex Formation
Covalently Functionalization
Cysteine-Functionalized Swcnt
Electrochemical Sensor
topic Cadmium
Carbon Nanotubes
Complex Formation
Covalently Functionalization
Cysteine-Functionalized Swcnt
Electrochemical Sensor
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv This work is focused on the development of an electrochemical sensor for the quantification of Cd(II) based on the use of glassy carbon electrodes (GCE) modified with a dispersion of single-walled carbon nanotubes (SWCNTs) covalently functionalized with cysteine (Cys). Cd(II) is preconcentrated at the electrode surface by complex formation at open circuit potential, followed by the reduction at −0.900 V and the final anodic voltammetric stripping in a 0.020 M acetate buffer solution pH 5.00. The functionalization of SWCNTs was performed through the reaction between the carboxylic groups of oxidized SWCNT and amino groups of S-triphenylmethyl cysteine using a coupling chemistry agent based on benzotriazol for the activation of carboxylic residues. There was a linear relationship between Cd oxidation signal and Cd(II) concentration between 1.0 and 300.0 μgL−1 Cd(II), with a sensitivity of (49 ± 2) × 10−3 μAμg−1L and a detection limit of 0.3 μgL−1. The reproducibility was 1.7% using the same dispersion and 3.8% using 3 different dispersions. The sensor was challenged with groundwater samples enriched with Cd(II) showing excellent recovery percentages and excellent agreement with the values obtained by ICP-MS.
Fil: Gutierrez, Fabiana Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Gonzalez Dominguez, Jose Miguel. Consejo Superior de Investigaciones Científicas. Instituto de Carboquímica; España
Fil: Ansón Casaos, Alejandro. Consejo Superior de Investigaciones Científicas. Instituto de Carboquímica; España
Fil: Hernández Ferrer, Javier. Consejo Superior de Investigaciones Científicas. Instituto de Carboquímica; España
Fil: Rubianes, María Dolores. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Martinez, Maria Teresa. Consejo Superior de Investigaciones Científicas. Instituto de Carboquímica; España
Fil: Rivas, Gustavo Adolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
description This work is focused on the development of an electrochemical sensor for the quantification of Cd(II) based on the use of glassy carbon electrodes (GCE) modified with a dispersion of single-walled carbon nanotubes (SWCNTs) covalently functionalized with cysteine (Cys). Cd(II) is preconcentrated at the electrode surface by complex formation at open circuit potential, followed by the reduction at −0.900 V and the final anodic voltammetric stripping in a 0.020 M acetate buffer solution pH 5.00. The functionalization of SWCNTs was performed through the reaction between the carboxylic groups of oxidized SWCNT and amino groups of S-triphenylmethyl cysteine using a coupling chemistry agent based on benzotriazol for the activation of carboxylic residues. There was a linear relationship between Cd oxidation signal and Cd(II) concentration between 1.0 and 300.0 μgL−1 Cd(II), with a sensitivity of (49 ± 2) × 10−3 μAμg−1L and a detection limit of 0.3 μgL−1. The reproducibility was 1.7% using the same dispersion and 3.8% using 3 different dispersions. The sensor was challenged with groundwater samples enriched with Cd(II) showing excellent recovery percentages and excellent agreement with the values obtained by ICP-MS.
publishDate 2017
dc.date.none.fl_str_mv 2017-10
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/63990
Gutierrez, Fabiana Andrea; Gonzalez Dominguez, Jose Miguel; Ansón Casaos, Alejandro; Hernández Ferrer, Javier; Rubianes, María Dolores; et al.; Single-walled carbon nanotubes covalently functionalized with cysteine: A new alternative for the highly sensitive and selective Cd(II) quantification; Elsevier Science Sa; Sensors and Actuators B: Chemical; 249; 10-2017; 506-514
0925-4005
CONICET Digital
CONICET
url http://hdl.handle.net/11336/63990
identifier_str_mv Gutierrez, Fabiana Andrea; Gonzalez Dominguez, Jose Miguel; Ansón Casaos, Alejandro; Hernández Ferrer, Javier; Rubianes, María Dolores; et al.; Single-walled carbon nanotubes covalently functionalized with cysteine: A new alternative for the highly sensitive and selective Cd(II) quantification; Elsevier Science Sa; Sensors and Actuators B: Chemical; 249; 10-2017; 506-514
0925-4005
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.snb.2017.04.026
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0925400517306263
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science Sa
publisher.none.fl_str_mv Elsevier Science Sa
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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