Another team reported the ZnO nanorod-based glucose sensor was prepared using a hydrothermal synthesis method on a flexible PET substrate. The surface of the working electrode was modified by coating electrodeposited reduced graphenes (rGO) with different deposition cycles onto the ZnONRs. The rGO had a positive impact on electron transport between the solution and electrode due to its high conductivity, and it also smoothed the rough surface of the working electrodes. While the latter effect slightly decreased enzyme adsorption, the former positive effect was more significant, resulting in better performance of the rGO/ZnONRbased glucose sensors. The Nafion/GOx/rGO-20/ZnONRs/Au/PET sensors showed 9.2 times increase in sensitivity, 47 times decrease in detection limit, and an extended linear range from 7.5 mM to 12 mM compared to sensors without rGOs. Both ZnONRs-based and rGO/ZnONRsbased glucose sensors showed strong anti-interference performance against urea, uric acid, and ascorbic acid. The optimal deposition cycle was determined to be 20, resulting in improved sensor performance with a sensitivity of 5.40 μA mM -1 cm -2 , a detection limit of 17.8 μM, and a linear range of 0.1 mM to 12 mM. The results have the potential to improve the performance of other nanostructured matrix-based electrochemical biosensors.