CuO/MoS2 nanocomposites for rapid and high sensitive non-enzymatic glucose sensors

Non-enzymatic amperometric glucose sensor is fabricated using CuO/MoS2 nanocomposites (CuO/M) by a facile method with high sensitivity. Cyclic Voltammetry (CV) studies of nanocomposites reveal the strong electro-catalytic activity for a wide range of glucose concentrations (0.1-10 mM) with a high current response in 0.1 M NaOH solution. The CuO/M modified electrode sensor shows high sensitivity (1055 mu A/mM.cm(2)), rapid response (< 2s), and lower detection limit (0.017 mu mu M) in the linear range of 35 mu M-800 mu M. The synergistic effect of MoS2 and CuO resulted in improved glucose electro-oxidation in alkaline solution. From the experimental results, it is inferred that modification with MoS2 could be a potential strategy to enhance the electrocatalytic properties of low-cost metal oxides.