“…The use of various chemically modified electrodes have been reported till date for amperometric monitoring of organic molecules [15][16][17][18][19][20][21] and we have also fabricated the H 2 O 2 sensor based on ZnO-decorated carbon nanotubes. 22 However, sensitivity and selectivity, which are still in high demand, can be further improved. In continuation of our quest in this direction, we report herein the fabrication of a new amperometric sensor based on a glassy carbon (GC) electrode, modified using zinc oxide-graphene oxide (ZnO-GO) nanostructures.…”