Fig. S2.

(A) The changes of nonfaradic charge that flowed after the potential (600 mV) perturbation for 120 s on inserting the tip inside 10 individual cells compared with the background nonfaradic charge collected outside the cells. (B) The changes of nonfaradic charge from the capillary after the egression of 10 mM PBS solution into 10 individual cells compared with the background nonfaradic charge collected outside the cells. The background charge was collected from the ring electrode for 120 s after the egression of glucose oxidase into the bulk solution.