D-mannitol sensor based on molecularly imprinted polymer on electrode modified with reduced graphene oxide decorated with gold nanoparticles
Autor(a) principal: | |
---|---|
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.talanta.2016.12.040 http://hdl.handle.net/11449/174051 |
Resumo: | An electrochemical sensor for D-mannitol based on molecularly imprinted polymer on electrode modified with reduced graphene oxide decorated with gold nanoparticles was developed in this present work. The sensor was constructed for the first time via the electropolymerization of o-phenylenediamine (o-PD) over a surface containing reduced graphene oxide (RGO) and gold nanoparticles (AuNP) in the presence of D-mannitol molecules. The surface modification with AuNP/RGO-GCE facilitated the charge transfer processes of [Fe(CN)6]3−/4−, which was used as an electrochemical probe. It also contributed meaningfully towards the increase in the surface/volume ratio, creating more locations for imprinting, and providing greater sensitivity to the sensor. The MIP/AuNP/RGO-GCE sensor was characterized by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), scanning electron microscope (SEM), atomic force microscope (AFM) and X-ray Photoelectron Spectroscopy (XPS). Important parameters that exert control over the performance of the molecularly imprinted sensor (such as number of cycles, pH, monomer and template concentration and extraction and rebinding conditions) were investigated and optimized. The imprinting factor was 4.9, showing greater response to the D-mannitol molecule compared to the interfering molecules. The limit of detection, limit of quantification and amperometric sensitivity were 7.7×10–13 mol L−1, 2.6×10–12 mol L−1 and 3.9×1010 µA L mol−1 (n=3) respectively. The MIP/AuNP/RGO-GCE sensor was successfully applied towards the selective determination of D-mannitol in sugarcane vinasse, thus making it, in essence, a valuable tool for the accurate and reliable determination of this molecule. |
id |
UNSP_6adcdca5b37e1c6d766e1deb8a90f448 |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/174051 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
D-mannitol sensor based on molecularly imprinted polymer on electrode modified with reduced graphene oxide decorated with gold nanoparticlesAu nanoparticlesD-mannitolElectrochemical determinationMolecularly imprinted electrochemical sensorReduced graphene oxideAn electrochemical sensor for D-mannitol based on molecularly imprinted polymer on electrode modified with reduced graphene oxide decorated with gold nanoparticles was developed in this present work. The sensor was constructed for the first time via the electropolymerization of o-phenylenediamine (o-PD) over a surface containing reduced graphene oxide (RGO) and gold nanoparticles (AuNP) in the presence of D-mannitol molecules. The surface modification with AuNP/RGO-GCE facilitated the charge transfer processes of [Fe(CN)6]3−/4−, which was used as an electrochemical probe. It also contributed meaningfully towards the increase in the surface/volume ratio, creating more locations for imprinting, and providing greater sensitivity to the sensor. The MIP/AuNP/RGO-GCE sensor was characterized by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), scanning electron microscope (SEM), atomic force microscope (AFM) and X-ray Photoelectron Spectroscopy (XPS). Important parameters that exert control over the performance of the molecularly imprinted sensor (such as number of cycles, pH, monomer and template concentration and extraction and rebinding conditions) were investigated and optimized. The imprinting factor was 4.9, showing greater response to the D-mannitol molecule compared to the interfering molecules. The limit of detection, limit of quantification and amperometric sensitivity were 7.7×10–13 mol L−1, 2.6×10–12 mol L−1 and 3.9×1010 µA L mol−1 (n=3) respectively. The MIP/AuNP/RGO-GCE sensor was successfully applied towards the selective determination of D-mannitol in sugarcane vinasse, thus making it, in essence, a valuable tool for the accurate and reliable determination of this molecule.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Analytical Chemistry Department Chemistry Institute Universidade Estadual Paulista (UNESP), Rua Prof. Francisco Degni, 55Analytical Chemistry Department Chemistry Institute Universidade Estadual Paulista (UNESP), Rua Prof. Francisco Degni, 55CAPES: CAPES process n° 33004030072p8Universidade Estadual Paulista (Unesp)Beluomini, Maísa Azevedo [UNESP]da Silva, José L. [UNESP]Sedenho, Graziela Cristina [UNESP]Stradiotto, Nelson Ramos [UNESP]2018-12-11T17:08:55Z2018-12-11T17:08:55Z2017-04-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article231-239application/pdfhttp://dx.doi.org/10.1016/j.talanta.2016.12.040Talanta, v. 165, p. 231-239.0039-9140http://hdl.handle.net/11449/17405110.1016/j.talanta.2016.12.0402-s2.0-850087160102-s2.0-85008716010.pdf0072173018005712Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengTalanta1,186info:eu-repo/semantics/openAccess2023-12-09T06:18:50Zoai:repositorio.unesp.br:11449/174051Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T19:50:27.651420Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
D-mannitol sensor based on molecularly imprinted polymer on electrode modified with reduced graphene oxide decorated with gold nanoparticles |
title |
D-mannitol sensor based on molecularly imprinted polymer on electrode modified with reduced graphene oxide decorated with gold nanoparticles |
spellingShingle |
D-mannitol sensor based on molecularly imprinted polymer on electrode modified with reduced graphene oxide decorated with gold nanoparticles Beluomini, Maísa Azevedo [UNESP] Au nanoparticles D-mannitol Electrochemical determination Molecularly imprinted electrochemical sensor Reduced graphene oxide |
title_short |
D-mannitol sensor based on molecularly imprinted polymer on electrode modified with reduced graphene oxide decorated with gold nanoparticles |
title_full |
D-mannitol sensor based on molecularly imprinted polymer on electrode modified with reduced graphene oxide decorated with gold nanoparticles |
title_fullStr |
D-mannitol sensor based on molecularly imprinted polymer on electrode modified with reduced graphene oxide decorated with gold nanoparticles |
title_full_unstemmed |
D-mannitol sensor based on molecularly imprinted polymer on electrode modified with reduced graphene oxide decorated with gold nanoparticles |
title_sort |
D-mannitol sensor based on molecularly imprinted polymer on electrode modified with reduced graphene oxide decorated with gold nanoparticles |
author |
Beluomini, Maísa Azevedo [UNESP] |
author_facet |
Beluomini, Maísa Azevedo [UNESP] da Silva, José L. [UNESP] Sedenho, Graziela Cristina [UNESP] Stradiotto, Nelson Ramos [UNESP] |
author_role |
author |
author2 |
da Silva, José L. [UNESP] Sedenho, Graziela Cristina [UNESP] Stradiotto, Nelson Ramos [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Beluomini, Maísa Azevedo [UNESP] da Silva, José L. [UNESP] Sedenho, Graziela Cristina [UNESP] Stradiotto, Nelson Ramos [UNESP] |
dc.subject.por.fl_str_mv |
Au nanoparticles D-mannitol Electrochemical determination Molecularly imprinted electrochemical sensor Reduced graphene oxide |
topic |
Au nanoparticles D-mannitol Electrochemical determination Molecularly imprinted electrochemical sensor Reduced graphene oxide |
description |
An electrochemical sensor for D-mannitol based on molecularly imprinted polymer on electrode modified with reduced graphene oxide decorated with gold nanoparticles was developed in this present work. The sensor was constructed for the first time via the electropolymerization of o-phenylenediamine (o-PD) over a surface containing reduced graphene oxide (RGO) and gold nanoparticles (AuNP) in the presence of D-mannitol molecules. The surface modification with AuNP/RGO-GCE facilitated the charge transfer processes of [Fe(CN)6]3−/4−, which was used as an electrochemical probe. It also contributed meaningfully towards the increase in the surface/volume ratio, creating more locations for imprinting, and providing greater sensitivity to the sensor. The MIP/AuNP/RGO-GCE sensor was characterized by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), scanning electron microscope (SEM), atomic force microscope (AFM) and X-ray Photoelectron Spectroscopy (XPS). Important parameters that exert control over the performance of the molecularly imprinted sensor (such as number of cycles, pH, monomer and template concentration and extraction and rebinding conditions) were investigated and optimized. The imprinting factor was 4.9, showing greater response to the D-mannitol molecule compared to the interfering molecules. The limit of detection, limit of quantification and amperometric sensitivity were 7.7×10–13 mol L−1, 2.6×10–12 mol L−1 and 3.9×1010 µA L mol−1 (n=3) respectively. The MIP/AuNP/RGO-GCE sensor was successfully applied towards the selective determination of D-mannitol in sugarcane vinasse, thus making it, in essence, a valuable tool for the accurate and reliable determination of this molecule. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-04-01 2018-12-11T17:08:55Z 2018-12-11T17:08:55Z |
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.2016.12.040 Talanta, v. 165, p. 231-239. 0039-9140 http://hdl.handle.net/11449/174051 10.1016/j.talanta.2016.12.040 2-s2.0-85008716010 2-s2.0-85008716010.pdf 0072173018005712 |
url |
http://dx.doi.org/10.1016/j.talanta.2016.12.040 http://hdl.handle.net/11449/174051 |
identifier_str_mv |
Talanta, v. 165, p. 231-239. 0039-9140 10.1016/j.talanta.2016.12.040 2-s2.0-85008716010 2-s2.0-85008716010.pdf 0072173018005712 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Talanta 1,186 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
231-239 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_ |
1808129126538674176 |