Akoğulları S.Çιnar S.Özdokur K.V.Aydemir T.Ertaş F.N.Koçak S.2024-07-222024-07-22202010400397http://akademikarsiv.cbu.edu.tr:4000/handle/123456789/14139Present study describes the synthesis of mixed oxide films of manganese and vanadium by electrochemical pulsed deposition technique on a glassy carbon electrode (GCE) modified with multiwall carbon nanotubes (MWCNT). The film was further decorated with gold nanoparticles to enhance the reduction signal of dissolved oxygen in pH 5.17 acetate buffer solution. All of the electrochemical synthesized modified electrodes have been characterized with Scanning electron microscopy(SEM), High-resolution transmission electron microscopy (HRTEM), X-Ray photoelectron spectroscopy (XPS), X-Ray diffraction (XRD) techniques. The electrode obtained (AuNPs/MnOx−VOx/CNT/GCE) was utilized as a platform for glucose biosensor where the glucose oxidase enzyme was immobilized on the composite film with the aid of chitosan and an ionic liquid. The electrochemical performance of the biosensor was investigated by cyclic voltammetry and the relative parameters have been optimized by amperometric measurements in pH 5.17 acetate buffer solution. The developed biosensor exhibited a linear range for glucose between 0.1–1.0 mM and the limit of detection was calculated as 0.02 mM. © 2019 Wiley-VCH Verlag GmbH & Co. KGaA, WeinheimEnglishCarbon filmsChitosanCyclic voltammetryDepositionDissolved oxygenFiber optic sensorsGlass membrane electrodesGlucoseGlucose oxidaseGlucose sensorsGold compoundsGold depositsHigh resolution transmission electron microscopyIonic liquidsMetal nanoparticlesMultiwalled carbon nanotubes (MWCN)Nanocomposite filmsOxide filmsOxidesScanning electron microscopyVanadium compoundsX ray photoelectron spectroscopyYarnAcetate buffer solutionsCarbon nanotube nanoparticlesElectrochemicalsGlassy carbon electrodesGold nanoparticleGold NanoparticlesManganese and vanadium oxideManganese oxide filmsPulsed depositionVanadium oxide filmsGold nanoparticlesArticle10.1002/elan.201900194