Fabrication of Photoelectrochemical Glucose Biosensor in Flow Injection Analysis System Using ZnS/CdS-Carbon Nanotube Nanocomposite Electrode

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dc.authoridDilgin, Yusuf/0000-0002-2980-6871
dc.contributor.authorSaglam, Ozlem
dc.contributor.authorDilgin, Yusuf
dc.date.accessioned2025-01-27T20:20:16Z
dc.date.available2025-01-27T20:20:16Z
dc.date.issued2017
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractIn this work, a photoamperometric glucose biosensor based on glucose oxidase (GODx) was developed in flow injection analysis (FIA) system using ZnS-CdS quantum dot (QD) modified multiwalled carbon nanotube/glassy carbon electrode (ZnS-CdS/MWCNT/GCE). Cyclic voltammograms of the proposed electrode (GODx/ZnS-CdS/MWCNT/GCE) showed a pair of well-defined reversible redox peak attributing that direct electron transfer between the protein and electrode. The current of the reduction peak became more cathodic in the presence of O-2 due to the electrocatalytic activity of the electrode towards the reduction of dissolved O-2, but reduction current shifted to a less negative value upon addition of glucose in the solution. The obtained CV currents were affected by the irradiation of the electrode surface. Thus, the photoelectrochemical biosensing of glucose in the FIA system was studied by monitoring of the changes in the electrocatalyzed reduction peak current of dissolved O-2 at the proposed electrode dependent on glucose concentration. The proposed photoelectrochemical FIA method has a linear response to glucose ranging from of 0.01 to 1.0mM with detection limit of 3.0 M under optimized conditions. Photoelectrochemical biosensor was successfully fabricated in FIA system for selective, sensitive and repeatable detection of glucose and has been satisfactorily applied to determination of glucose in real sample.
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [112T375]
dc.description.sponsorshipWe thank the The Scientific and Technological Research Council of Turkey (TUBITAK) for financial support (Project number: 112T375).
dc.identifier.doi10.1002/elan.201600764
dc.identifier.endpage1376
dc.identifier.issn1040-0397
dc.identifier.issn1521-4109
dc.identifier.issue5
dc.identifier.scopus2-s2.0-85012096213
dc.identifier.scopusqualityQ2
dc.identifier.startpage1368
dc.identifier.urihttps://doi.org/10.1002/elan.201600764
dc.identifier.urihttps://hdl.handle.net/20.500.12428/21641
dc.identifier.volume29
dc.identifier.wosWOS:000401430700021
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherWiley-V C H Verlag Gmbh
dc.relation.ispartofElectroanalysis
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectGlucose oxidase
dc.subjectZnS-CdS quantum dots
dc.subjectflow injection analysis
dc.subjectphotoelectrochemical biosensor
dc.subjectmulti walled carbon nanotube
dc.titleFabrication of Photoelectrochemical Glucose Biosensor in Flow Injection Analysis System Using ZnS/CdS-Carbon Nanotube Nanocomposite Electrode
dc.typeArticle

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