▎ 摘　　要

Here, we demonstrate the detection of H2O2 with a novel, flexible and non-enzymatic electrochemical sensor based on a laser scribed graphene electrode decorated with silver nanoparticles(LSG-Ag). This low-cost technique based on a DVD laser, allowed the direct manufacturing and reduction of graphene oxide into an electrochemical transducer with conductive, lightweight, reduced and flexible characteristics. The LSG-Ag sensor showed a high catalytic response towards H2O2 reduction at -0.5 V with a fast amperometric response of only 3 s. The sensor exhibited a wide linear range from 0.1 to 10 mM (R-2 = 0.9982), a low LOD of 7.9 mu M with high repeatability of 3% R.S.D. and reproducibility of 4.5% R.S.D. In addition, the LSG-Ag retained its operational characteristics after continuous bending with a loss of current of only 13%. Considering the need of progression of electrochemical systems into trending areas where flexibility is required, the laser-induced sensors can provide a suitable platform for flexible, reliable, sensitive and selective detection.