File Name : fig. s1.pdf Caption : fig.s1 photomasks for preparation of the upper pdms slide and the bottom glass. File Name : fig. s2.pdf Caption : fig. s2. ecl−potential curves of [ru(bpy)2dppz]2+/tpa under the condition of deionized water and pbs in the sensor well channel. the concentration of [ru(bpy)2dppz]2+/tpa were 2.5/25 mm and content of h2o2 was 0.1m in pbs. the voltage of the pmt was 1300 v in the detection process.