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Magnetically separable polymer (Mag-MIP) for selective analysis of biotin in food samples

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dc.contributor.authorUzuriaga-Sánchez, Rosario Josefina [UNESP]
dc.contributor.authorKhan, Sabir [UNESP]
dc.contributor.authorWong, Ademar [UNESP]
dc.contributor.authorPicasso, Gino
dc.contributor.authorPividori, Maria Isabel
dc.contributor.authorSotomayor, Maria Del Pilar Taboada [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionLaboratory of Physical Chemistry Research, Faculty of Science, National University of Engineering, Tupac Amaru 210 Av., Rimac, Lima, Peru.
dc.contributor.institutionGroup de Sensors i Biosensors, Departament de Química, Universitat Autònoma de Barcelona (UAB), 08193 Bellaterra, Barcelona, Spain.
dc.date.accessioned2015-12-07T15:40:48Z
dc.date.available2015-12-07T15:40:48Z
dc.date.issued2016-01-01
dc.description.abstractThis work presents an efficient method for the preparation of magnetic nanoparticles modified with molecularly imprinted polymers (Mag-MIP) through core-shell method for the determination of biotin in milk food samples. The functional monomer acrylic acid was selected from molecular modeling, EGDMA was used as cross-linking monomer and AIBN as radical initiator. The Mag-MIP and Mag-NIP were characterized by FTIR, magnetic hysteresis, XRD, SEM and N2-sorption measurements. The capacity of Mag-MIP for biotin adsorption, its kinetics and selectivity were studied in detail. The adsorption data was well described by Freundlich isotherm model with adsorption equilibrium constant (KF) of 1.46 mL g(-1). The selectivity experiments revealed that prepared Mag-MIP had higher selectivity toward biotin compared to other molecules with different chemical structure. The material was successfully applied for the determination of biotin in diverse milk samples using HPLC for quantification of the analyte, obtaining the mean value of 87.4% recovery.en
dc.description.affiliationUNESP - Univ Estadual Paulista, Institute of Chemistry, Department of Analytical Chemistry, 14801-970 Araraquara, SP, Brazil; Laboratory of Physical Chemistry Research, Faculty of Science, National University of Engineering, Tupac Amaru 210 Av., Rimac, Lima, Peru.
dc.description.affiliationUNESP - Univ Estadual Paulista, Institute of Chemistry, Department of Analytical Chemistry, 14801-970 Araraquara, SP, Brazil.
dc.description.affiliationLaboratory of Physical Chemistry Research, Faculty of Science, National University of Engineering, Tupac Amaru 210 Av., Rimac, Lima, Peru.
dc.description.affiliationGroup de Sensors i Biosensors, Departament de Química, Universitat Autònoma de Barcelona (UAB), 08193 Bellaterra, Barcelona, Spain.
dc.description.affiliationUNESP - Univ Estadual Paulista, Institute of Chemistry, Department of Analytical Chemistry, 14801-970 Araraquara, SP, Brazil. Electronic address: mpilar@iq.unesp.br.
dc.description.affiliationUnespUNESP - Univ Estadual Paulista, Institute of Chemistry, Department of Analytical Chemistry, 14801-970 Araraquara, SP, Brazil; Laboratory of Physical Chemistry Research, Faculty of Science, National University of Engineering, Tupac Amaru 210 Av., Rimac, Lima, Peru.
dc.description.affiliationUnespUNESP - Univ Estadual Paulista, Institute of Chemistry, Department of Analytical Chemistry, 14801-970 Araraquara, SP, Brazil.
dc.description.affiliationUnespUNESP - Univ Estadual Paulista, Institute of Chemistry, Department of Analytical Chemistry, 14801-970 Araraquara, SP, Brazil. Electronic address: mpilar@iq.unesp.br.
dc.format.extent460-467
dc.identifierhttp://dx.doi.org/10.1016/j.foodchem.2015.05.129
dc.identifier.citationFood Chemistry, v. 190, p. 460-467, 2016.
dc.identifier.doi10.1016/j.foodchem.2015.05.129
dc.identifier.issn0308-8146
dc.identifier.lattes2933194342093387
dc.identifier.pubmed26212997
dc.identifier.urihttp://hdl.handle.net/11449/131696
dc.language.isoeng
dc.publisherElsevier B. V.
dc.relation.ispartofFood Chemistry
dc.relation.ispartofjcr4.946
dc.relation.ispartofsjr1,793
dc.rights.accessRightsAcesso restrito
dc.sourcePubMed
dc.subjectBiotinen
dc.subjectImprinted polymersen
dc.subjectMagnetic nanoparticlesen
dc.subjectMagnetic-mipen
dc.subjectMilken
dc.titleMagnetically separable polymer (Mag-MIP) for selective analysis of biotin in food samplesen
dc.typeArtigo
dcterms.rightsHolderElsevier B. V.
dspace.entity.typePublication
unesp.author.lattes2933194342093387
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Química, Araraquarapt
unesp.departmentFísico-Química - IQARpt
unesp.departmentQuímica Analítica - IQARpt

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Araraquara - IQAR - Instituto de Química