Fructose determination in fruit juices using an electrosynthesized molecularly imprinted polymer on reduced graphene oxide modified electrode
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.foodchem.2021.129430 http://hdl.handle.net/11449/208480 |
Resumo: | The present work reports the development of a novel electrochemical sensor for the selective detection of fructose. The sensor was developed through electropolymerization of a molecularly imprinted polymer film on a reduced graphene oxide modified electrode. The modified electrode was characterized by cyclic voltammetry, electrochemical impedance spectroscopy, scanning electron microscopy, atomic force microscopy and RAMAN spectroscopy. Through the application of the modified electrode, the recognition of fructose molecules occurred in a concentration range of 1.0 × 10−14 to 1.0 × 10−11 mol L−1, under a Langmuir adsorption isothermal model. The sensitivity and limits of detection and quantification obtained for the sensor were 9.9 × 107 A L mol−1, 3.2 × 10−15 mol L−1 and 1.1 × 10−14 mol L−1, respectively. The analytical method used for the detection of fructose presented good reproducibility, stability and accuracy, and was successfully applied for the quantification of this sugar in orange, apple and grape juices. |
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Fructose determination in fruit juices using an electrosynthesized molecularly imprinted polymer on reduced graphene oxide modified electrodeElectrochemical sensorFructoseFruit juicesMolecularly imprinted polymerPhenylboronic acidReduced graphene oxideThe present work reports the development of a novel electrochemical sensor for the selective detection of fructose. The sensor was developed through electropolymerization of a molecularly imprinted polymer film on a reduced graphene oxide modified electrode. The modified electrode was characterized by cyclic voltammetry, electrochemical impedance spectroscopy, scanning electron microscopy, atomic force microscopy and RAMAN spectroscopy. Through the application of the modified electrode, the recognition of fructose molecules occurred in a concentration range of 1.0 × 10−14 to 1.0 × 10−11 mol L−1, under a Langmuir adsorption isothermal model. The sensitivity and limits of detection and quantification obtained for the sensor were 9.9 × 107 A L mol−1, 3.2 × 10−15 mol L−1 and 1.1 × 10−14 mol L−1, respectively. The analytical method used for the detection of fructose presented good reproducibility, stability and accuracy, and was successfully applied for the quantification of this sugar in orange, apple and grape juices.Institute of Chemistry São Paulo State University (UNESP)Bioenergy Research Institute São Paulo State University (UNESP)São Carlos Institute of Physics University of São Paulo (USP)Institute of Chemistry São Paulo State University (UNESP)Bioenergy Research Institute São Paulo State University (UNESP)Universidade Estadual Paulista (Unesp)Universidade de São Paulo (USP)Moreira, Luiz Felipe Pompeu Prado [UNESP]Buffon, Edervaldo [UNESP]de Sá, Acelino Cardoso [UNESP]Stradiotto, Nelson Ramos [UNESP]2021-06-25T11:12:50Z2021-06-25T11:12:50Z2021-08-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.foodchem.2021.129430Food Chemistry, v. 352.1873-70720308-8146http://hdl.handle.net/11449/20848010.1016/j.foodchem.2021.1294302-s2.0-85102058665Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengFood Chemistryinfo:eu-repo/semantics/openAccess2021-10-23T19:02:13Zoai:repositorio.unesp.br:11449/208480Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:22:40.470194Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Fructose determination in fruit juices using an electrosynthesized molecularly imprinted polymer on reduced graphene oxide modified electrode |
title |
Fructose determination in fruit juices using an electrosynthesized molecularly imprinted polymer on reduced graphene oxide modified electrode |
spellingShingle |
Fructose determination in fruit juices using an electrosynthesized molecularly imprinted polymer on reduced graphene oxide modified electrode Moreira, Luiz Felipe Pompeu Prado [UNESP] Electrochemical sensor Fructose Fruit juices Molecularly imprinted polymer Phenylboronic acid Reduced graphene oxide |
title_short |
Fructose determination in fruit juices using an electrosynthesized molecularly imprinted polymer on reduced graphene oxide modified electrode |
title_full |
Fructose determination in fruit juices using an electrosynthesized molecularly imprinted polymer on reduced graphene oxide modified electrode |
title_fullStr |
Fructose determination in fruit juices using an electrosynthesized molecularly imprinted polymer on reduced graphene oxide modified electrode |
title_full_unstemmed |
Fructose determination in fruit juices using an electrosynthesized molecularly imprinted polymer on reduced graphene oxide modified electrode |
title_sort |
Fructose determination in fruit juices using an electrosynthesized molecularly imprinted polymer on reduced graphene oxide modified electrode |
author |
Moreira, Luiz Felipe Pompeu Prado [UNESP] |
author_facet |
Moreira, Luiz Felipe Pompeu Prado [UNESP] Buffon, Edervaldo [UNESP] de Sá, Acelino Cardoso [UNESP] Stradiotto, Nelson Ramos [UNESP] |
author_role |
author |
author2 |
Buffon, Edervaldo [UNESP] de Sá, Acelino Cardoso [UNESP] Stradiotto, Nelson Ramos [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade de São Paulo (USP) |
dc.contributor.author.fl_str_mv |
Moreira, Luiz Felipe Pompeu Prado [UNESP] Buffon, Edervaldo [UNESP] de Sá, Acelino Cardoso [UNESP] Stradiotto, Nelson Ramos [UNESP] |
dc.subject.por.fl_str_mv |
Electrochemical sensor Fructose Fruit juices Molecularly imprinted polymer Phenylboronic acid Reduced graphene oxide |
topic |
Electrochemical sensor Fructose Fruit juices Molecularly imprinted polymer Phenylboronic acid Reduced graphene oxide |
description |
The present work reports the development of a novel electrochemical sensor for the selective detection of fructose. The sensor was developed through electropolymerization of a molecularly imprinted polymer film on a reduced graphene oxide modified electrode. The modified electrode was characterized by cyclic voltammetry, electrochemical impedance spectroscopy, scanning electron microscopy, atomic force microscopy and RAMAN spectroscopy. Through the application of the modified electrode, the recognition of fructose molecules occurred in a concentration range of 1.0 × 10−14 to 1.0 × 10−11 mol L−1, under a Langmuir adsorption isothermal model. The sensitivity and limits of detection and quantification obtained for the sensor were 9.9 × 107 A L mol−1, 3.2 × 10−15 mol L−1 and 1.1 × 10−14 mol L−1, respectively. The analytical method used for the detection of fructose presented good reproducibility, stability and accuracy, and was successfully applied for the quantification of this sugar in orange, apple and grape juices. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-06-25T11:12:50Z 2021-06-25T11:12:50Z 2021-08-01 |
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/10.1016/j.foodchem.2021.129430 Food Chemistry, v. 352. 1873-7072 0308-8146 http://hdl.handle.net/11449/208480 10.1016/j.foodchem.2021.129430 2-s2.0-85102058665 |
url |
http://dx.doi.org/10.1016/j.foodchem.2021.129430 http://hdl.handle.net/11449/208480 |
identifier_str_mv |
Food Chemistry, v. 352. 1873-7072 0308-8146 10.1016/j.foodchem.2021.129430 2-s2.0-85102058665 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Food Chemistry |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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_ |
1808128801885913088 |