A molecularly imprinted polymer on reduced graphene oxide-gold nanoparticles modified screen-printed electrode for selective determination of ferulic acid in orange peels
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.microc.2021.106339 http://hdl.handle.net/11449/208650 |
Resumo: | This work reports the development of a molecularly imprinted polymer used for the sensitive and selective electrochemical detection of ferulic acid. The device was prepared by the electropolymerization of molecularly imprinted poly(phenol) film on screen-printed electrode modified with reduced graphene oxide and gold nanoparticles. The modified electrode was characterized by cyclic voltammetry, electrochemical impedance spectroscopy, scanning electron microscopy with field emission gun, energy dispersive X-ray spectroscopy, RAMAN spectroscopy and atomic force microscopy. Under optimized conditions, the proposed electrode presented a linear working range of 10 nM to 1 µM and a detection limit of 3.1 nM (n = 3). The sensor displayed good repeatability and stability over time, as well as excellent selectivity when applied for the detection of ferulic acid molecule. The method proposed here was successfully applied for ferulic acid detection in orange peels. The analyses were validated by recovery assays, where recovery values between 99 and 103% were obtained. The results of the study show that this electroanalytical methodology has good accuracy when employed for the detection of ferulic acid. |
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Repositório Institucional da UNESP |
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2946 |
spelling |
A molecularly imprinted polymer on reduced graphene oxide-gold nanoparticles modified screen-printed electrode for selective determination of ferulic acid in orange peelsFerulic acidMetallic nanoparticleMolecularly imprinted electrochemical sensorPhenolReduced graphene oxideScreen-printed electrodeThis work reports the development of a molecularly imprinted polymer used for the sensitive and selective electrochemical detection of ferulic acid. The device was prepared by the electropolymerization of molecularly imprinted poly(phenol) film on screen-printed electrode modified with reduced graphene oxide and gold nanoparticles. The modified electrode was characterized by cyclic voltammetry, electrochemical impedance spectroscopy, scanning electron microscopy with field emission gun, energy dispersive X-ray spectroscopy, RAMAN spectroscopy and atomic force microscopy. Under optimized conditions, the proposed electrode presented a linear working range of 10 nM to 1 µM and a detection limit of 3.1 nM (n = 3). The sensor displayed good repeatability and stability over time, as well as excellent selectivity when applied for the detection of ferulic acid molecule. The method proposed here was successfully applied for ferulic acid detection in orange peels. The analyses were validated by recovery assays, where recovery values between 99 and 103% were obtained. The results of the study show that this electroanalytical methodology has good accuracy when employed for the detection of ferulic acid.Institute of Chemistry São Paulo State University (UNESP)Bioenergy Research Institute São Paulo State University (UNESP)Institute of Chemistry São Paulo State University (UNESP)Bioenergy Research Institute São Paulo State University (UNESP)Universidade Estadual Paulista (Unesp)Buffon, Edervaldo [UNESP]Stradiotto, Nelson Ramos [UNESP]2021-06-25T11:15:38Z2021-06-25T11:15:38Z2021-08-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.microc.2021.106339Microchemical Journal, v. 167.0026-265Xhttp://hdl.handle.net/11449/20865010.1016/j.microc.2021.1063392-s2.0-85105330277Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMicrochemical Journalinfo:eu-repo/semantics/openAccess2021-10-23T19:02:24Zoai:repositorio.unesp.br:11449/208650Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T19:02:24Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
A molecularly imprinted polymer on reduced graphene oxide-gold nanoparticles modified screen-printed electrode for selective determination of ferulic acid in orange peels |
title |
A molecularly imprinted polymer on reduced graphene oxide-gold nanoparticles modified screen-printed electrode for selective determination of ferulic acid in orange peels |
spellingShingle |
A molecularly imprinted polymer on reduced graphene oxide-gold nanoparticles modified screen-printed electrode for selective determination of ferulic acid in orange peels Buffon, Edervaldo [UNESP] Ferulic acid Metallic nanoparticle Molecularly imprinted electrochemical sensor Phenol Reduced graphene oxide Screen-printed electrode |
title_short |
A molecularly imprinted polymer on reduced graphene oxide-gold nanoparticles modified screen-printed electrode for selective determination of ferulic acid in orange peels |
title_full |
A molecularly imprinted polymer on reduced graphene oxide-gold nanoparticles modified screen-printed electrode for selective determination of ferulic acid in orange peels |
title_fullStr |
A molecularly imprinted polymer on reduced graphene oxide-gold nanoparticles modified screen-printed electrode for selective determination of ferulic acid in orange peels |
title_full_unstemmed |
A molecularly imprinted polymer on reduced graphene oxide-gold nanoparticles modified screen-printed electrode for selective determination of ferulic acid in orange peels |
title_sort |
A molecularly imprinted polymer on reduced graphene oxide-gold nanoparticles modified screen-printed electrode for selective determination of ferulic acid in orange peels |
author |
Buffon, Edervaldo [UNESP] |
author_facet |
Buffon, Edervaldo [UNESP] Stradiotto, Nelson Ramos [UNESP] |
author_role |
author |
author2 |
Stradiotto, Nelson Ramos [UNESP] |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Buffon, Edervaldo [UNESP] Stradiotto, Nelson Ramos [UNESP] |
dc.subject.por.fl_str_mv |
Ferulic acid Metallic nanoparticle Molecularly imprinted electrochemical sensor Phenol Reduced graphene oxide Screen-printed electrode |
topic |
Ferulic acid Metallic nanoparticle Molecularly imprinted electrochemical sensor Phenol Reduced graphene oxide Screen-printed electrode |
description |
This work reports the development of a molecularly imprinted polymer used for the sensitive and selective electrochemical detection of ferulic acid. The device was prepared by the electropolymerization of molecularly imprinted poly(phenol) film on screen-printed electrode modified with reduced graphene oxide and gold nanoparticles. The modified electrode was characterized by cyclic voltammetry, electrochemical impedance spectroscopy, scanning electron microscopy with field emission gun, energy dispersive X-ray spectroscopy, RAMAN spectroscopy and atomic force microscopy. Under optimized conditions, the proposed electrode presented a linear working range of 10 nM to 1 µM and a detection limit of 3.1 nM (n = 3). The sensor displayed good repeatability and stability over time, as well as excellent selectivity when applied for the detection of ferulic acid molecule. The method proposed here was successfully applied for ferulic acid detection in orange peels. The analyses were validated by recovery assays, where recovery values between 99 and 103% were obtained. The results of the study show that this electroanalytical methodology has good accuracy when employed for the detection of ferulic acid. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-06-25T11:15:38Z 2021-06-25T11:15:38Z 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.microc.2021.106339 Microchemical Journal, v. 167. 0026-265X http://hdl.handle.net/11449/208650 10.1016/j.microc.2021.106339 2-s2.0-85105330277 |
url |
http://dx.doi.org/10.1016/j.microc.2021.106339 http://hdl.handle.net/11449/208650 |
identifier_str_mv |
Microchemical Journal, v. 167. 0026-265X 10.1016/j.microc.2021.106339 2-s2.0-85105330277 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Microchemical Journal |
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_ |
1799965459767885824 |