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Single Step Synthesis of Au-CuO Nanoparticles Decorated Reduced Graphene Oxide for High Performance Disposable Nonenzymatic Glucose Sensor

Publication Type : Journal Article

Thematic Areas : Biotech

Publisher : Journal of Electroanalytical Chemistry

Source : Journal of Electroanalytical Chemistry, vol. 743, pp. 1-9, 2015

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Keywords : Alkalinity, copper, Copper oxide nanoparticles, Copper oxides, Direct electrooxidation, Electrocatalytic activity, Electrochemical glucose sensors, Electrodes, Electrooxidation, Glucose, Glucose sensors, Gold, Graphene, Graphene oxides, High-resolution scanning electron microscopies, Nanocomposites, Nanoparticles, Non-enzymatic glucose sensors, scanning electron microscopy, Screen printed electrodes, Synthesis (chemical), X ray diffraction

Campus : Amritapuri, Coimbatore

School : School of Biotechnology, School of Engineering

Center : Biosensor Research Lab, Biotechnology, Cell Biology

Department : Sciences, biotechnology

Year : 2015

Abstract : A nonenzymatic electrochemical glucose sensor was fabricated using gold-copper oxide nanoparticles decorated reduced graphene oxide (Au-CuO/rGO). A novel one step chemical process was employed for the synthesis of nanocomposite. Morphology and crystal planes of the nanocomposite were characterized using high resolution scanning electron microscopy (HRSEM) and X-ray diffraction (XRD) respectively. The Au-CuO/rGO nanocomposite was dispersed in N,N-dimethyl formamide (DMF) and drop-casted on the working area of the indigenously fabricated screen printed electrode (SPE). The sensor showed good electrocatalytic activity in alkaline medium for the direct electrooxidation of glucose with linear detection range of 1 μM to 12 mM and a lower detection limit of 0.1 μM. The sensor exhibited an excellent sensitivity 2356 μA mM- 1 cm- 2. Sensor was used for the determination of serum glucose concentration and the results obtained were compared with commercially available test strips. © 2015 Elsevier B.V. All rights reserved.

Cite this Research Publication : Keerthy Dhara, Dr. Ramachandran T., Dr. Bipin G. Nair, and Dr. Satheesh Babu T. G., “Single step synthesis of Au-CuO nanoparticles decorated reduced graphene oxide for high performance disposable nonenzymatic glucose sensor”, Journal of Electroanalytical Chemistry, vol. 743, pp. 1-9, 2015

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