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

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dc.authoridOKMAN KOCOGLU, Irem/0000-0001-6071-9795
dc.contributor.authorErden, Pinar Esra
dc.contributor.authorErdogan, Zehra Ozden
dc.contributor.authorOzturk, Funda
dc.contributor.authorKocoglu, Irem Okman
dc.contributor.authorKilic, Esma
dc.date.accessioned2024-09-29T15:50:39Z
dc.date.available2024-09-29T15:50:39Z
dc.date.issued2019
dc.departmentKarabük Üniversitesien_US
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 9.9x10(-7) to 1.2x10(-4) M and from 9.9x10(-7) to 1.1x10(-4) M, respectively. MAOx/PVF/GRO/SPCE biosensor showed higher sensitivity (11.98 mu A mM(-1)) for tyramine determination than the DAOx/PVF/GRO/SPCE biosensor (7.99 mu A mM(-1)). The substrate specifity of the biosensors to other biogenic amines namely histamine, putrescine, spermine, spermidine, tryptamine, beta-phenylethylamine and cadaverine was also investigated. The developed biosensors were successfully used for tyramine determination in cheese sample.en_US
dc.description.sponsorshipThe Scientific and Technical Research Council of Turkey (TUBITAK) [116Z159]en_US
dc.description.sponsorshipThis work was supported by The Scientific and Technical Research Council of Turkey (TUBITAK Project No: 116Z159).en_US
dc.identifier.doi10.1002/elan.201900369
dc.identifier.endpage2378en_US
dc.identifier.issn1040-0397
dc.identifier.issn1521-4109
dc.identifier.issue12en_US
dc.identifier.scopus2-s2.0-85076447885en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage2368en_US
dc.identifier.urihttps://doi.org/10.1002/elan.201900369
dc.identifier.urihttps://hdl.handle.net/20.500.14619/3663
dc.identifier.volume31en_US
dc.identifier.wosWOS:000479716900001en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherWiley-V C H Verlag Gmbhen_US
dc.relation.ispartofElectroanalysisen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAmperometric biosensoren_US
dc.subjectbiogenic amineen_US
dc.subjecttyramineen_US
dc.subjectpolyvinlyferroceneen_US
dc.subjectgraphene oxideen_US
dc.titleAmperometric Biosensors for Tyramine Determination Based on Graphene Oxide and Polyvinylferrocene Modified Screen-printed Electrodesen_US
dc.typeArticleen_US

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