One step copper oxide (CuO) thin film deposition for non-enzymatic electrochemical glucose detection

CuO nanoparticle functionalized thin film electrode has been fabricated on fluorine doped fin oxide coated conducive glass using an efficient facile solution deposition technique for non-enzymatic electrochemical detection of glucose. The CuO nanoparticulate thin film exhibited an excellent electrochemical response towards glucose oxidation, high sensitivity of 1207 mu A mM(-1) cm(-2), a linear range of up to 2,2 mM, and fast response of less than 4 s at a potential of 0,55 V vs Ag/AgCl with a limit of detection calculated to be 1,19 mu M (at a signal-to-noise ratio (S/N) of 3). The prepared sensor exhibited exceptional selectivity to multiple interference species, satisfactory reproducibility and excellent chemical stability. The performance demonstrated makes the electrode material promising for the development of effective non-enzymatic glucose sensor.