A gold nanoparticle functionalized multiwalled carbon nanotube-poly(o-phenylenediamine) composite film for glucose biosensing applications

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dc.contributor.authorBas, Salih Zeki
dc.date.accessioned2020-03-26T18:49:09Z
dc.date.available2020-03-26T18:49:09Z
dc.date.issued2014
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractA new biosensor based on immobilization of glucose oxidase on a multiwalled carbon nanotube-gold nanoparticle coated glassy carbon electrode (GCE) was fabricated for the electrochemical determination of glucose. First, a carboxylated multiwalled carbon nanotube (cMWCNT) was functionalized with 4-aminothiophenol (ATP) by a coupling agent, N-(3-dimethylaminopropyl)-N'-ethylcarbodiimide hydrochloride, and then gold nanoparticles (AuNPs) were covalently linked to the ATP-cMWCNT via the formation of a covalent Au-S bond. Finally, glucose oxidase was immobilized simultaneously by the electropolymerization of o-phenylenediamine on the AuNP-ATP-cMWCNT coated GCE. The biosensor showed a linear range from 0.05 mM to 8.85 mM with a sensitivity of 27.93 mu A mM(-1) cm(-2) and a detection limit of 0.015 mM for the detection of glucose. The biosensor was successfully applied to estimate the glucose concentration in human blood serum samples. Furthermore, the AuNP-ATP-cMWCNT was investigated for the non-enzymatic detection of hydrogen peroxide by using voltammetric and amperometric techniques, indicating a linear relationship in the range of 5 x 10(-3) to 13.10 mM.en_US
dc.description.sponsorshipScientific Research Projects of Selcuk UniversitySelcuk Universityen_US
dc.description.sponsorshipThis work was financially supported by the Scientific Research Projects of Selcuk University.en_US
dc.identifier.doi10.1039/c4ay01524jen_US
dc.identifier.endpage7759en_US
dc.identifier.issn1759-9660en_US
dc.identifier.issn1759-9679en_US
dc.identifier.issue19en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage7752en_US
dc.identifier.urihttps://dx.doi.org/10.1039/c4ay01524j
dc.identifier.urihttps://hdl.handle.net/20.500.12395/30540
dc.identifier.volume6en_US
dc.identifier.wosWOS:000342178500024en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherROYAL SOC CHEMISTRYen_US
dc.relation.ispartofANALYTICAL METHODSen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.titleA gold nanoparticle functionalized multiwalled carbon nanotube-poly(o-phenylenediamine) composite film for glucose biosensing applicationsen_US
dc.typeArticleen_US

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