Hybrid graphene oxide/DAB-Am-16 dendrimer: Preparation, characterization chemical reactivity and their electrocatalytic detection of L-Dopamine
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.solidstatesciences.2017.07.005 http://hdl.handle.net/11449/174881 |
Resumo: | Graphene oxide (GO) was chemically modified with a poly(propylene)imine Generation 3.0 dendrimer (DAB-Am-16). The characterization, structure and properties of hybrid graphene oxide/DAB-Am-16 dendrimer was studied by Raman spectroscopy, Fourier-Transforming Infrared Spectroscopy (FT-IR), X-Ray Photoelectron Spectroscopic (XPS), X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM) and Thermogravimetric analysis. After functionalized the hybrid material (GOD) can interact with copper and subsequently with hexacyanoferrate (III) ions (GODHCu). The GODHCu incorporated into a graphite paste electrode (20% w/w) was applied to an electrocatalytic detection of neurotransmitter L-dopamine using differential pulse voltammetry. The analytical curve showed a linear response in the concentration range from 1.0 × 10−7 to 1.0 × 10−5 mol L−1 with a corresponding equation Y(A) = 1.706 × 10−5 + 0.862 [L-dopamine] and a correlation coefficient r2 = 0.998. The detection limit was 6.36 × 10−7 mol L−1 with a relative standard deviation of ±4% (n = 3) and an amperometric sensitivity of 0.862 A/mol L−1. |
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Hybrid graphene oxide/DAB-Am-16 dendrimer: Preparation, characterization chemical reactivity and their electrocatalytic detection of L-DopamineChemical synthesisElectrochemical measurementsElectrochemical propertiesPhotoelectron spectroscopyRaman spectroscopySurfacesGraphene oxide (GO) was chemically modified with a poly(propylene)imine Generation 3.0 dendrimer (DAB-Am-16). The characterization, structure and properties of hybrid graphene oxide/DAB-Am-16 dendrimer was studied by Raman spectroscopy, Fourier-Transforming Infrared Spectroscopy (FT-IR), X-Ray Photoelectron Spectroscopic (XPS), X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM) and Thermogravimetric analysis. After functionalized the hybrid material (GOD) can interact with copper and subsequently with hexacyanoferrate (III) ions (GODHCu). The GODHCu incorporated into a graphite paste electrode (20% w/w) was applied to an electrocatalytic detection of neurotransmitter L-dopamine using differential pulse voltammetry. The analytical curve showed a linear response in the concentration range from 1.0 × 10−7 to 1.0 × 10−5 mol L−1 with a corresponding equation Y(A) = 1.706 × 10−5 + 0.862 [L-dopamine] and a correlation coefficient r2 = 0.998. The detection limit was 6.36 × 10−7 mol L−1 with a relative standard deviation of ±4% (n = 3) and an amperometric sensitivity of 0.862 A/mol L−1.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Faculdade de Engenharia de Ilha Solteira UNESP – Univ. Estadual Paulista Departamento de Física e Química, Av. Brasil Centro, 56Faculdade de Engenharia de Ilha Solteira UNESP – Univ. Estadual Paulista Departamento de Física e Química, Av. Brasil Centro, 56FAPESP: 2015/20397Universidade Estadual Paulista (Unesp)Do Carmo, Devaney Ribeiro [UNESP]Fernandes, Daniela Silvestrini [UNESP]2018-12-11T17:13:17Z2018-12-11T17:13:17Z2017-09-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article33-41application/pdfhttp://dx.doi.org/10.1016/j.solidstatesciences.2017.07.005Solid State Sciences, v. 71, p. 33-41.1293-2558http://hdl.handle.net/11449/17488110.1016/j.solidstatesciences.2017.07.0052-s2.0-850223349272-s2.0-85022334927.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengSolid State Sciences0,574info:eu-repo/semantics/openAccess2023-10-14T06:09:42Zoai:repositorio.unesp.br:11449/174881Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-10-14T06:09:42Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Hybrid graphene oxide/DAB-Am-16 dendrimer: Preparation, characterization chemical reactivity and their electrocatalytic detection of L-Dopamine |
title |
Hybrid graphene oxide/DAB-Am-16 dendrimer: Preparation, characterization chemical reactivity and their electrocatalytic detection of L-Dopamine |
spellingShingle |
Hybrid graphene oxide/DAB-Am-16 dendrimer: Preparation, characterization chemical reactivity and their electrocatalytic detection of L-Dopamine Do Carmo, Devaney Ribeiro [UNESP] Chemical synthesis Electrochemical measurements Electrochemical properties Photoelectron spectroscopy Raman spectroscopy Surfaces |
title_short |
Hybrid graphene oxide/DAB-Am-16 dendrimer: Preparation, characterization chemical reactivity and their electrocatalytic detection of L-Dopamine |
title_full |
Hybrid graphene oxide/DAB-Am-16 dendrimer: Preparation, characterization chemical reactivity and their electrocatalytic detection of L-Dopamine |
title_fullStr |
Hybrid graphene oxide/DAB-Am-16 dendrimer: Preparation, characterization chemical reactivity and their electrocatalytic detection of L-Dopamine |
title_full_unstemmed |
Hybrid graphene oxide/DAB-Am-16 dendrimer: Preparation, characterization chemical reactivity and their electrocatalytic detection of L-Dopamine |
title_sort |
Hybrid graphene oxide/DAB-Am-16 dendrimer: Preparation, characterization chemical reactivity and their electrocatalytic detection of L-Dopamine |
author |
Do Carmo, Devaney Ribeiro [UNESP] |
author_facet |
Do Carmo, Devaney Ribeiro [UNESP] Fernandes, Daniela Silvestrini [UNESP] |
author_role |
author |
author2 |
Fernandes, Daniela Silvestrini [UNESP] |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Do Carmo, Devaney Ribeiro [UNESP] Fernandes, Daniela Silvestrini [UNESP] |
dc.subject.por.fl_str_mv |
Chemical synthesis Electrochemical measurements Electrochemical properties Photoelectron spectroscopy Raman spectroscopy Surfaces |
topic |
Chemical synthesis Electrochemical measurements Electrochemical properties Photoelectron spectroscopy Raman spectroscopy Surfaces |
description |
Graphene oxide (GO) was chemically modified with a poly(propylene)imine Generation 3.0 dendrimer (DAB-Am-16). The characterization, structure and properties of hybrid graphene oxide/DAB-Am-16 dendrimer was studied by Raman spectroscopy, Fourier-Transforming Infrared Spectroscopy (FT-IR), X-Ray Photoelectron Spectroscopic (XPS), X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM) and Thermogravimetric analysis. After functionalized the hybrid material (GOD) can interact with copper and subsequently with hexacyanoferrate (III) ions (GODHCu). The GODHCu incorporated into a graphite paste electrode (20% w/w) was applied to an electrocatalytic detection of neurotransmitter L-dopamine using differential pulse voltammetry. The analytical curve showed a linear response in the concentration range from 1.0 × 10−7 to 1.0 × 10−5 mol L−1 with a corresponding equation Y(A) = 1.706 × 10−5 + 0.862 [L-dopamine] and a correlation coefficient r2 = 0.998. The detection limit was 6.36 × 10−7 mol L−1 with a relative standard deviation of ±4% (n = 3) and an amperometric sensitivity of 0.862 A/mol L−1. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-09-01 2018-12-11T17:13:17Z 2018-12-11T17:13:17Z |
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.solidstatesciences.2017.07.005 Solid State Sciences, v. 71, p. 33-41. 1293-2558 http://hdl.handle.net/11449/174881 10.1016/j.solidstatesciences.2017.07.005 2-s2.0-85022334927 2-s2.0-85022334927.pdf |
url |
http://dx.doi.org/10.1016/j.solidstatesciences.2017.07.005 http://hdl.handle.net/11449/174881 |
identifier_str_mv |
Solid State Sciences, v. 71, p. 33-41. 1293-2558 10.1016/j.solidstatesciences.2017.07.005 2-s2.0-85022334927 2-s2.0-85022334927.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Solid State Sciences 0,574 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
33-41 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_ |
1803045991699447808 |