Figure 7

CV responses of CuO/ZnO-DSDSHNM in 0.5 M NaOH at various scan rates ranging from 10 to 250 mVs⁻¹ (10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 125, 150, 175, 200, 225 and 250 mVs⁻¹) in 10 mM glucose. Inset: corresponding two plots of anodic peaks versus the (a) square root of scan rate and (b) scan rate.