Amperometric Biosensors for Tyramine Determination Based on Graphene Oxide and Polyvinylferrocene Modified Screen-printed Electrodes

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dc.authorscopusid12784153100
dc.authorscopusid55365681500
dc.authorscopusid25422504200
dc.authorscopusid57204717706
dc.authorscopusid7006065730
dc.contributor.authorErden, Pınar Esra
dc.contributor.authorErdoğan, Z.Ö.
dc.contributor.authorÖztürk, Funda
dc.contributor.authorKoçoğlu, İ.O.
dc.contributor.authorKılıç, E.
dc.date.accessioned2022-05-11T14:03:21Z
dc.date.available2022-05-11T14:03:21Z
dc.date.issued2019
dc.departmentFakülteler, Fen Edebiyat Fakültesi, Kimya Bölümü
dc.description.abstractA comparison of the analytical characteristics of two tyramine biosensors, based on graphene oxide (GRO) and polyvinylferrocene (PVF) modified screen-printed carbon electrodes (SPCE), is reported. Diamine oxidase (DAOx) or monoamine oxidase (MAOx) was immobilized onto the PVF/GRO modified SPCE to fabricate the biosensors. Surface characteristics and electrochemical behaviour of the modified SPCEs were investigated by atomic force microscopy (AFM), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX) and cyclic voltammetry (CV). Electrode surface composition and experimental variables such as pH and working potential were optimized in order to ensure a high performance. Under optimum experimental conditions, both DAOx/PVF/GRO/SPCE and MAOx/PVF/GRO/SPCE biosensors exhibited wide linear dynamic ranges for tyramine from 9.9×10?7 to 1.2×10?4 M and from 9.9×10?7 to 1.1×10?4 M, respectively. MAOx/PVF/GRO/SPCE biosensor showed higher sensitivity (11.98 ?A mM?1) for tyramine determination than the DAOx/PVF/GRO/SPCE biosensor (7.99 ?A mM?1). The substrate specifity of the biosensors to other biogenic amines namely histamine, putrescine, spermine, spermidine, tryptamine, ?-phenylethylamine and cadaverine was also investigated. The developed biosensors were successfully used for tyramine determination in cheese sample. © 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
dc.description.sponsorship116Z159; Türkiye Bilimsel ve Teknolojik Araştirma Kurumu, TÜBITAK
dc.description.sponsorshipThis work was supported by The Scientific and Technical Research Council of Turkey (TUBITAK Project No: 116Z159).
dc.identifier.doi10.1002/elan.201900369
dc.identifier.endpage2378
dc.identifier.issn1040-0397
dc.identifier.issue12en_US
dc.identifier.scopus2-s2.0-85076447885
dc.identifier.scopusqualityQ2
dc.identifier.startpage2368
dc.identifier.urihttps://doi.org/10.1002/elan.201900369
dc.identifier.urihttps://hdl.handle.net/20.500.11776/4680
dc.identifier.volume31
dc.identifier.wosWOS:000479716900001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthorÖztürk, Funda
dc.language.isoen
dc.publisherWiley-VCH Verlag
dc.relation.ispartofElectroanalysis
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectAmperometric biosensor
dc.subjectbiogenic amine
dc.subjectgraphene oxide
dc.subjectpolyvinlyferrocene
dc.subjecttyramine
dc.titleAmperometric Biosensors for Tyramine Determination Based on Graphene Oxide and Polyvinylferrocene Modified Screen-printed Electrodes
dc.typeArticle

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