Electrochemical Phenol Biosensor Configurations Based on Nanobiocomposites

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dc.contributor.authorSulak, Meral Topcu
dc.contributor.authorErhan, Elif
dc.contributor.authorKeskinler, Bulent
dc.date.accessioned2024-09-29T16:11:12Z
dc.date.available2024-09-29T16:11:12Z
dc.date.issued2012
dc.departmentKarabük Üniversitesien_US
dc.description.abstractDifferent biosensor configurations were constructed based on nanobiocomposites for the detection of phenol. The immobilization of laccase (TvLac) was achieved on a glassy carbon (GC) with polypyrrole (PPy), polypyrrole-multiwall carbon nanotube (PPy-MWCNT), and polypyrrole-multiwall carbon nanotube-Prussian blue (PPy-MWCNT-PB) composites via electrochemical polymerization. A comparative study was made of the analytical properties of the biosensors corresponding to the three configurations, namely, GC/PPy-TvLac, GC/PPy-TvLac-MWCNT, and GC/PPy-TvLac-MWCNT-PB. All the configurations indicated that the (TvLac-MWCNT-PB) nanobiocomposites were entrapped within the porous PPy film and resulted in a hybrid film that showed a high electrocatalytic ability toward the oxidation of phenol at a potential of -200 mV vs Ag/AgCl. The GC/PPy-TvLac-MWCNT-PB working electrode gave performance characteristics with high sensitivity (309.1 nA/mu M), low detection limit, and good stability. This electrode allowed the determination of phenol in the 0.2 -2.56 mu M concentration range. The sensitivities (S/N = 3) for phenol obtained from the different working electrodes were found to be 4.56, 91.03, and 309.1 mu M, respectively.en_US
dc.description.sponsorshipScientific & Technological Research Council of Turkey (TUBITAK)en_US
dc.description.sponsorshipThe authors are grateful to The Scientific & Technological Research Council of Turkey (TUBITAK) for financial support of this project.en_US
dc.identifier.endpage152en_US
dc.identifier.issn0914-4935
dc.identifier.issue3en_US
dc.identifier.startpage141en_US
dc.identifier.urihttps://hdl.handle.net/20.500.14619/8236
dc.identifier.volume24en_US
dc.identifier.wosWOS:000303619900003en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.language.isoenen_US
dc.publisherMyu, Scientific Publishing Divisionen_US
dc.relation.ispartofSensors and Materialsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectcarbon nanotubesen_US
dc.subjectelectropolymerizationen_US
dc.subjectlaccaseen_US
dc.subjectphenolen_US
dc.subjectPrussian blueen_US
dc.titleElectrochemical Phenol Biosensor Configurations Based on Nanobiocompositesen_US
dc.typeArticleen_US

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