Poly-phenothiazine derivative-modified glassy carbon electrode for NADH electrocatalytic oxidation

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dc.contributor.authorGligor, Delia
dc.contributor.authorDilgin, Yusuf
dc.contributor.authorPopescu, Ionel Catalin
dc.contributor.authorGorton, Lo
dc.date.accessioned2025-01-27T20:47:29Z
dc.date.available2025-01-27T20:47:29Z
dc.date.issued2009
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractElectropolymerization of a new phenothiazine derivative (bis-phenothiazin-3-yl methane; BPhM) on glassy carbon (GC) electrode generates a conducting film of poly-BPhM. in stable contact with the electrode surface. The heterogeneous electron-transfer process corresponding to the modified electrode is characterized by a high rate constant (50.4 s(-1), pH 7). The CC/poly-BPhM electrode shows excellent electrocatalytic activity toward NADH oxidation. The rate constant for catalytic NADH oxidation, estimated from rotating disk electrode (RDE) measurements and extrapolated to zero concentration of NADH, was found to be 9.4 x 10(4) M-1 s(-1) (pH 7). The amperometric detection of NADH, at +200 mV vs. SCE, is described by the following electroanalytical parameters: a sensitivity of 1.82 mA M-1, a detection limit of 2 mu M and a linear domain up to 0.1 mM NADH. (c) 2008 Elsevier Ltd. All rights reserved.
dc.description.sponsorshipCNCSIS [ID_512]; Swedish Research Council
dc.description.sponsorshipFinancial support from CNCSIS (Project ID_512) and the Swedish Research Council is gratefully acknowledged. Y. Dilgin is grateful to The Scientific and Technical Research Council of Turkey (Tubitak) for providing a fellowship. The authors thank Dr. Castelia Cristea (Department of Organic Chemistry, Babes-Bolyai University Cluj-Napoca, Romania) for providing the phenothiazine derivative.
dc.identifier.doi10.1016/j.electacta.2008.11.053
dc.identifier.endpage3128
dc.identifier.issn0013-4686
dc.identifier.issn1873-3859
dc.identifier.issue11
dc.identifier.scopus2-s2.0-62249117714
dc.identifier.scopusqualityQ1
dc.identifier.startpage3124
dc.identifier.urihttps://doi.org/10.1016/j.electacta.2008.11.053
dc.identifier.urihttps://hdl.handle.net/20.500.12428/24925
dc.identifier.volume54
dc.identifier.wosWOS:000265342100027
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherPergamon-Elsevier Science Ltd
dc.relation.ispartofElectrochimica Acta
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectNADH electrocatalytic oxidation
dc.subjectPoly(phenothiazine derivative)
dc.subjectElectropolymerization
dc.titlePoly-phenothiazine derivative-modified glassy carbon electrode for NADH electrocatalytic oxidation
dc.typeArticle

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