Electrochemical sensing of methyl parathion on magnetic molecularly imprinted polymer

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dc.contributor.authorHassan, Amal H.A.
dc.contributor.authorMoura, Silio Lima
dc.contributor.authorAli, Fatma H.M.
dc.contributor.authorMoselhy, Walaa A.
dc.contributor.authorTaboada Sotomayor, Maria del Pilar [UNESP]
dc.contributor.authorPividori, Maria Isabel
dc.contributor.institutionUniversitat Autònoma de Barcelona (UAB)
dc.contributor.institutionBeni-Suef University
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-12-11T17:21:58Z
dc.date.available2018-12-11T17:21:58Z
dc.date.issued2018-10-30
dc.description.abstractThe electrochemical detection of methyl parathion in fish was performed by preconcentrating the pesticide on magnetic molecularly imprinted polymer and further readout on magneto-actuated electrode by square wave voltammetry. The magnetic molecularly imprinted polymer was synthesized by a magnetic core-shell strategy, using methacrylic acid as a functional monomer, and selected by theoretical calculation using the density functional theory (DFT). The characterization of this material was performed by SEM, TEM and XRD. Moreover, the binding capacity and selectivity towards methyl parathion was studied and compared with the corresponding magnetic non-imprinted polymer. The magneto-actuated electrochemical sensor showed outstanding analytical performance for the detection of methyl parathion in fish, with a limit of detection of as low as 1.22 × 10−6 mg L−1 and recovery values ranging from 89.4% to 94.7%. The magnetic molecularly imprinted polymer successfully preconcentrated the analyte from the complex samples and paves the way to incorporate this material in other platforms for the detection of this pesticide in the field of environmental control and food safety.en
dc.description.affiliationGrup de Sensors i Biosensors Department de Química Universitat Autònoma de Barcelona (UAB), Bellaterra
dc.description.affiliationFood Hygiene and Control department Faculty of Veterinary Medicine Beni-Suef University
dc.description.affiliationForensic Medicine and Toxicology department Faculty of Veterinary Medicine Beni-Suef University
dc.description.affiliationDepartment of Analytical Chemistry Institute of Chemistry State University of São Paulo (UNESP)
dc.description.affiliationUnespDepartment of Analytical Chemistry Institute of Chemistry State University of São Paulo (UNESP)
dc.description.sponsorshipMinisterio de Economía y Competitividad
dc.description.sponsorshipIdMinisterio de Economía y Competitividad: BIO2013-41242-R
dc.description.sponsorshipIdMinisterio de Economía y Competitividad: BIO2016-75751-R
dc.format.extent181-187
dc.identifierhttp://dx.doi.org/10.1016/j.bios.2018.06.052
dc.identifier.citationBiosensors and Bioelectronics, v. 118, p. 181-187.
dc.identifier.doi10.1016/j.bios.2018.06.052
dc.identifier.file2-s2.0-85050821142.pdf
dc.identifier.issn1873-4235
dc.identifier.issn0956-5663
dc.identifier.scopus2-s2.0-85050821142
dc.identifier.urihttp://hdl.handle.net/11449/176660
dc.language.isoeng
dc.relation.ispartofBiosensors and Bioelectronics
dc.relation.ispartofsjr2,373
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectElectrochemical sensing
dc.subjectFish
dc.subjectFood safety
dc.subjectMagnetic molecularly imprinted polymer
dc.subjectMethyl parathion
dc.titleElectrochemical sensing of methyl parathion on magnetic molecularly imprinted polymeren
dc.typeArtigo

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Artigos - Química Analítica - IQ