Electrocatalytic Oxidation of NADH Using a Pencil Graphite Electrode Modified with Hematoxylin

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dc.contributor.authorDilgin, Yusuf
dc.contributor.authorErtek, Bensu
dc.contributor.authorKizilkaya, Bayram
dc.contributor.authorDilgin, Didem Giray
dc.contributor.authorGokcel, H. Ismet
dc.date.accessioned2019-10-27T21:41:21Z
dc.date.available2019-10-27T21:41:21Z
dc.date.issued2012
dc.departmentEge Üniversitesien_US
dc.description.abstractIn the present study, the electrocatalytic oxidation of reduced p-Nicotinamide Adenine Dinucleotide (NADH) was investigated using a pencil graphite electrode modified with hematoxylin (PGE/HMT). The PGE/HMT was prepared by adsorption of HMT on the PGE via immersion of bare PGE into 1.0 mM HMT solution (in methanol) for 60 s at room temperature. Cyclic voltammetric studies show that the peak potential of NADH oxidation shifts from +450 mV at bare PGE to +200 mV at PGE/HMT. The electrocatalytic currents obtained from the amperometric measurements at +200 mV versus Ag/AgCl/KClsat and pH 7.0 phosphate buffer solution containing 0.1 M KCl were linearly related to the concentration of NADH. The calibration graph consisted of two linear segments of 0.5-10 mu M and 10-300 mu M with a detection limit of 0.2 mu M (based on 3s(b), s(b) is the standard deviation of the blank response). The amperometric measurements exhibited that the response of the modified PGE/HMT towards the oxidation of NADH is reproducible, fast, sensitive and stable. Finally, the results obtained in the present study conclusively show that PGE modified with HMT can be effectively used to detect NADH.en_US
dc.identifier.doi10.1166/sam.2012.1376
dc.identifier.endpage927en_US
dc.identifier.issn1947-2935
dc.identifier.issn1947-2943
dc.identifier.issn1947-2935en_US
dc.identifier.issn1947-2943en_US
dc.identifier.issue9en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.startpage920en_US
dc.identifier.urihttps://doi.org/10.1166/sam.2012.1376
dc.identifier.urihttps://hdl.handle.net/11454/46634
dc.identifier.volume4en_US
dc.identifier.wosWOS:000311255100004en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.language.isoenen_US
dc.publisherAmer Scientific Publishersen_US
dc.relation.ispartofScience of Advanced Materialsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectElectrocatalytic Oxidationen_US
dc.subjectHematoxylinen_US
dc.subjectNADHen_US
dc.subjectPencil Graphite Electrodeen_US
dc.titleElectrocatalytic Oxidation of NADH Using a Pencil Graphite Electrode Modified with Hematoxylinen_US
dc.typeArticleen_US

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