Silsesquioxane Modified with PAMAM Dendrimer and a Bimetallic Complex for Electrochemical Detection of Ascorbic Acid

Detalhes bibliográficos
Autor(a) principal: Silvestrini Fernandes, Daniela [UNESP]
Data de Publicação: 2021
Outros Autores: do Carmo, Devaney Ribeiro [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1002/elan.202060228
http://hdl.handle.net/11449/205180
Resumo: Octakis(3-chloropropyl)octasilsesquioxane (S) was organofunctionalized with the PAMAM Dendrimer G.0 (SPD). After functionalization, silsesquioxane interacts with copper chloride and subsequently with potassium hexacyanoferrate (III) to produce the structure CuHSPD. The silsesquioxane functionalized with the PAMAM dendrimer (SPD) and the obtained novel hybrid composite (CuHSPD) were characterized by Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), and energy dispersive X-ray spectroscopy (EDS). The CuHSP voltammogram showed two well-defined redox pairs with Eθ′= 0.27 and 0.74 V, that are assigned to the CuI/CuII and FeII(CN)6/FeIII(CN)6 redox pairs, respectively. The graphite paste electrode containing CuHSPD allowed the electrocatalytic determination of ascorbic acid using various electrochemical techniques such as cyclic voltammetry, differential pulse voltammetry, and chronoamperometry.
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spelling Silsesquioxane Modified with PAMAM Dendrimer and a Bimetallic Complex for Electrochemical Detection of Ascorbic AcidAscorbic AcidOrganofunctionalizationPAMAM dendrimerSilsesquioxaneOctakis(3-chloropropyl)octasilsesquioxane (S) was organofunctionalized with the PAMAM Dendrimer G.0 (SPD). After functionalization, silsesquioxane interacts with copper chloride and subsequently with potassium hexacyanoferrate (III) to produce the structure CuHSPD. The silsesquioxane functionalized with the PAMAM dendrimer (SPD) and the obtained novel hybrid composite (CuHSPD) were characterized by Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), and energy dispersive X-ray spectroscopy (EDS). The CuHSP voltammogram showed two well-defined redox pairs with Eθ′= 0.27 and 0.74 V, that are assigned to the CuI/CuII and FeII(CN)6/FeIII(CN)6 redox pairs, respectively. The graphite paste electrode containing CuHSPD allowed the electrocatalytic determination of ascorbic acid using various electrochemical techniques such as cyclic voltammetry, differential pulse voltammetry, and chronoamperometry.Department of Physics and Chemistry São Paulo State University “Júlio de Mesquita Filho” – UNESP, Av. Brasil, 56, Zip codeDepartment of Chemistry University of São Paulo - USP, Av. Bandeirantes, 3900, Zip codeDepartment of Physics and Chemistry São Paulo State University “Júlio de Mesquita Filho” – UNESP, Av. Brasil, 56, Zip codeUniversidade Estadual Paulista (Unesp)Universidade de São Paulo (USP)Silvestrini Fernandes, Daniela [UNESP]do Carmo, Devaney Ribeiro [UNESP]2021-06-25T10:11:11Z2021-06-25T10:11:11Z2021-02-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article365-374http://dx.doi.org/10.1002/elan.202060228Electroanalysis, v. 33, n. 2, p. 365-374, 2021.1521-41091040-0397http://hdl.handle.net/11449/20518010.1002/elan.2020602282-s2.0-85091135456Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengElectroanalysisinfo:eu-repo/semantics/openAccess2021-10-23T11:33:43Zoai:repositorio.unesp.br:11449/205180Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T14:30:16.498112Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Silsesquioxane Modified with PAMAM Dendrimer and a Bimetallic Complex for Electrochemical Detection of Ascorbic Acid
title Silsesquioxane Modified with PAMAM Dendrimer and a Bimetallic Complex for Electrochemical Detection of Ascorbic Acid
spellingShingle Silsesquioxane Modified with PAMAM Dendrimer and a Bimetallic Complex for Electrochemical Detection of Ascorbic Acid
Silvestrini Fernandes, Daniela [UNESP]
Ascorbic Acid
Organofunctionalization
PAMAM dendrimer
Silsesquioxane
title_short Silsesquioxane Modified with PAMAM Dendrimer and a Bimetallic Complex for Electrochemical Detection of Ascorbic Acid
title_full Silsesquioxane Modified with PAMAM Dendrimer and a Bimetallic Complex for Electrochemical Detection of Ascorbic Acid
title_fullStr Silsesquioxane Modified with PAMAM Dendrimer and a Bimetallic Complex for Electrochemical Detection of Ascorbic Acid
title_full_unstemmed Silsesquioxane Modified with PAMAM Dendrimer and a Bimetallic Complex for Electrochemical Detection of Ascorbic Acid
title_sort Silsesquioxane Modified with PAMAM Dendrimer and a Bimetallic Complex for Electrochemical Detection of Ascorbic Acid
author Silvestrini Fernandes, Daniela [UNESP]
author_facet Silvestrini Fernandes, Daniela [UNESP]
do Carmo, Devaney Ribeiro [UNESP]
author_role author
author2 do Carmo, Devaney Ribeiro [UNESP]
author2_role author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Universidade de São Paulo (USP)
dc.contributor.author.fl_str_mv Silvestrini Fernandes, Daniela [UNESP]
do Carmo, Devaney Ribeiro [UNESP]
dc.subject.por.fl_str_mv Ascorbic Acid
Organofunctionalization
PAMAM dendrimer
Silsesquioxane
topic Ascorbic Acid
Organofunctionalization
PAMAM dendrimer
Silsesquioxane
description Octakis(3-chloropropyl)octasilsesquioxane (S) was organofunctionalized with the PAMAM Dendrimer G.0 (SPD). After functionalization, silsesquioxane interacts with copper chloride and subsequently with potassium hexacyanoferrate (III) to produce the structure CuHSPD. The silsesquioxane functionalized with the PAMAM dendrimer (SPD) and the obtained novel hybrid composite (CuHSPD) were characterized by Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), and energy dispersive X-ray spectroscopy (EDS). The CuHSP voltammogram showed two well-defined redox pairs with Eθ′= 0.27 and 0.74 V, that are assigned to the CuI/CuII and FeII(CN)6/FeIII(CN)6 redox pairs, respectively. The graphite paste electrode containing CuHSPD allowed the electrocatalytic determination of ascorbic acid using various electrochemical techniques such as cyclic voltammetry, differential pulse voltammetry, and chronoamperometry.
publishDate 2021
dc.date.none.fl_str_mv 2021-06-25T10:11:11Z
2021-06-25T10:11:11Z
2021-02-01
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/10.1002/elan.202060228
Electroanalysis, v. 33, n. 2, p. 365-374, 2021.
1521-4109
1040-0397
http://hdl.handle.net/11449/205180
10.1002/elan.202060228
2-s2.0-85091135456
url http://dx.doi.org/10.1002/elan.202060228
http://hdl.handle.net/11449/205180
identifier_str_mv Electroanalysis, v. 33, n. 2, p. 365-374, 2021.
1521-4109
1040-0397
10.1002/elan.202060228
2-s2.0-85091135456
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Electroanalysis
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 365-374
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_ 1808128369799200768

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