Nonenzymatic multispecies sensor based on Cu-Ni nanoparticle dispersion on doped graphene

•Developed a sensitive nonenzymatic high precision glucose/H2O2 sensor.•Catalytic activity via synergetic effect of doped graphene with copper and nickel.•Excellent non-interference, stability, reproducibility and detection limit.•Simultaneously detected glucose and H2O2 in human urine samples.