A novel core@shell magnetic molecular imprinted nanoparticles for selective determination of folic acid in different food samples
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.reactfunctpolym.2016.07.011 http://hdl.handle.net/11449/173279 |
Resumo: | In this work, magnetic molecularly imprinted polymers (MMIPs) were synthesized and tested for the determination of folic acid (FA) in different food samples. The MMIPs were polymerized at the surface of Fe3O4@SiO2 magnetic nanoparticles (MNPs) using acrylonitrile (functional monomer), ethylene glycol dimethacrylate (EGDMA) as cross-linking agent and azobiisobutyronitrile (AIBN) as an radical initiator. The morphological, topological and chemical characteristics of the MMIPs were investigated by field emission scanning electron microscopy (FESEM), high resolution transmission electron microscopy (HRTEM) and Fourier transform infrared (FTIR) techniques. The physico-chemical characterization, such as adsorption capacities and selectivity of MMIPs was investigated and compared with the respective MNIPs. The adsorption experimental data demonstrate that maximum adsorption capacity of MMIP at equilibrium was 8 mg g− 1 and than the adsorption process of FA over MMIPs follows Freundlich adsorption isotherm model and pseudo-first-order reaction kinetic. For evaluation of this new proposed material, the recovery studies were carried out in spiked samples at different concentration levels and the obtained values were in the range of 95–104% for orange and for spinach the recoveries were between 99.5 and 102.5%. The relative standard deviations (RSD) for the recoveries were < 0.5% for both samples. These results demonstrate that this novel MMIP material can be efficiently used for the selective extraction of folic acid from different food complex matrices. |
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A novel core@shell magnetic molecular imprinted nanoparticles for selective determination of folic acid in different food samplesFolic acidFoodMagnetic nanoparticlesMolecularly imprinted polymerIn this work, magnetic molecularly imprinted polymers (MMIPs) were synthesized and tested for the determination of folic acid (FA) in different food samples. The MMIPs were polymerized at the surface of Fe3O4@SiO2 magnetic nanoparticles (MNPs) using acrylonitrile (functional monomer), ethylene glycol dimethacrylate (EGDMA) as cross-linking agent and azobiisobutyronitrile (AIBN) as an radical initiator. The morphological, topological and chemical characteristics of the MMIPs were investigated by field emission scanning electron microscopy (FESEM), high resolution transmission electron microscopy (HRTEM) and Fourier transform infrared (FTIR) techniques. The physico-chemical characterization, such as adsorption capacities and selectivity of MMIPs was investigated and compared with the respective MNIPs. The adsorption experimental data demonstrate that maximum adsorption capacity of MMIP at equilibrium was 8 mg g− 1 and than the adsorption process of FA over MMIPs follows Freundlich adsorption isotherm model and pseudo-first-order reaction kinetic. For evaluation of this new proposed material, the recovery studies were carried out in spiked samples at different concentration levels and the obtained values were in the range of 95–104% for orange and for spinach the recoveries were between 99.5 and 102.5%. The relative standard deviations (RSD) for the recoveries were < 0.5% for both samples. These results demonstrate that this novel MMIP material can be efficiently used for the selective extraction of folic acid from different food complex matrices.Department of Analytical Chemistry Institute of Chemistry State University of São Paulo (UNESP)Faculty of Material and Chemical Engineering GIK Institute of Engineering Sciences and Technology, TopiDepartment of Chemistry University of Swabi for Woman Gulo-Deri, SwabiGroup de Sensors i Biosensors Departament de Química Universitat Autònoma de Barcelona (UAB), BellaterraDepartment of Analytical Chemistry Institute of Chemistry State University of São Paulo (UNESP)Universidade Estadual Paulista (Unesp)GIK Institute of Engineering Sciences and TechnologyUniversitat Autònoma de Barcelona (UAB)Hussain, Sajjad [UNESP]Khan, Sabir [UNESP]Gul, SaimaPividori, Maria IsabelDel Pilar Taboada Sotomayor, Maria [UNESP]2018-12-11T17:04:27Z2018-12-11T17:04:27Z2016-09-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article51-56application/pdfhttp://dx.doi.org/10.1016/j.reactfunctpolym.2016.07.011Reactive and Functional Polymers, v. 106, p. 51-56.1381-5148http://hdl.handle.net/11449/17327910.1016/j.reactfunctpolym.2016.07.0112-s2.0-849792217432-s2.0-84979221743.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengReactive and Functional Polymers0,834info:eu-repo/semantics/openAccess2023-12-05T06:21:14Zoai:repositorio.unesp.br:11449/173279Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-12-05T06:21:14Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
A novel core@shell magnetic molecular imprinted nanoparticles for selective determination of folic acid in different food samples |
title |
A novel core@shell magnetic molecular imprinted nanoparticles for selective determination of folic acid in different food samples |
spellingShingle |
A novel core@shell magnetic molecular imprinted nanoparticles for selective determination of folic acid in different food samples Hussain, Sajjad [UNESP] Folic acid Food Magnetic nanoparticles Molecularly imprinted polymer |
title_short |
A novel core@shell magnetic molecular imprinted nanoparticles for selective determination of folic acid in different food samples |
title_full |
A novel core@shell magnetic molecular imprinted nanoparticles for selective determination of folic acid in different food samples |
title_fullStr |
A novel core@shell magnetic molecular imprinted nanoparticles for selective determination of folic acid in different food samples |
title_full_unstemmed |
A novel core@shell magnetic molecular imprinted nanoparticles for selective determination of folic acid in different food samples |
title_sort |
A novel core@shell magnetic molecular imprinted nanoparticles for selective determination of folic acid in different food samples |
author |
Hussain, Sajjad [UNESP] |
author_facet |
Hussain, Sajjad [UNESP] Khan, Sabir [UNESP] Gul, Saima Pividori, Maria Isabel Del Pilar Taboada Sotomayor, Maria [UNESP] |
author_role |
author |
author2 |
Khan, Sabir [UNESP] Gul, Saima Pividori, Maria Isabel Del Pilar Taboada Sotomayor, Maria [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) GIK Institute of Engineering Sciences and Technology Universitat Autònoma de Barcelona (UAB) |
dc.contributor.author.fl_str_mv |
Hussain, Sajjad [UNESP] Khan, Sabir [UNESP] Gul, Saima Pividori, Maria Isabel Del Pilar Taboada Sotomayor, Maria [UNESP] |
dc.subject.por.fl_str_mv |
Folic acid Food Magnetic nanoparticles Molecularly imprinted polymer |
topic |
Folic acid Food Magnetic nanoparticles Molecularly imprinted polymer |
description |
In this work, magnetic molecularly imprinted polymers (MMIPs) were synthesized and tested for the determination of folic acid (FA) in different food samples. The MMIPs were polymerized at the surface of Fe3O4@SiO2 magnetic nanoparticles (MNPs) using acrylonitrile (functional monomer), ethylene glycol dimethacrylate (EGDMA) as cross-linking agent and azobiisobutyronitrile (AIBN) as an radical initiator. The morphological, topological and chemical characteristics of the MMIPs were investigated by field emission scanning electron microscopy (FESEM), high resolution transmission electron microscopy (HRTEM) and Fourier transform infrared (FTIR) techniques. The physico-chemical characterization, such as adsorption capacities and selectivity of MMIPs was investigated and compared with the respective MNIPs. The adsorption experimental data demonstrate that maximum adsorption capacity of MMIP at equilibrium was 8 mg g− 1 and than the adsorption process of FA over MMIPs follows Freundlich adsorption isotherm model and pseudo-first-order reaction kinetic. For evaluation of this new proposed material, the recovery studies were carried out in spiked samples at different concentration levels and the obtained values were in the range of 95–104% for orange and for spinach the recoveries were between 99.5 and 102.5%. The relative standard deviations (RSD) for the recoveries were < 0.5% for both samples. These results demonstrate that this novel MMIP material can be efficiently used for the selective extraction of folic acid from different food complex matrices. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-09-01 2018-12-11T17:04:27Z 2018-12-11T17:04:27Z |
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.reactfunctpolym.2016.07.011 Reactive and Functional Polymers, v. 106, p. 51-56. 1381-5148 http://hdl.handle.net/11449/173279 10.1016/j.reactfunctpolym.2016.07.011 2-s2.0-84979221743 2-s2.0-84979221743.pdf |
url |
http://dx.doi.org/10.1016/j.reactfunctpolym.2016.07.011 http://hdl.handle.net/11449/173279 |
identifier_str_mv |
Reactive and Functional Polymers, v. 106, p. 51-56. 1381-5148 10.1016/j.reactfunctpolym.2016.07.011 2-s2.0-84979221743 2-s2.0-84979221743.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Reactive and Functional Polymers 0,834 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
51-56 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 |
|
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1797789913911918592 |