For a better evaluation of the "on/off" switching of the G-CAPode, the W-Cap was polarized using small voltages of 0.1 and -0.1 V for 20 s each, different positive/negative Ubias were applied and the current response registered (Figure ). The current curves registered for the W-Cap exhibit a current decay pattern characteristic of an EC. Initially, right after Ubias is applied, a rapid decay of the increased transient current can be observed, reflecting the capacitive currents generated immediately upon biasing. This phase is then followed by a slower, exponential decay of the peak current over time, attributed to the much slower ionic diffusion from the bulk electrolyte to the polarized electrode and the gradual relaxation of polarization. The decay time, and thus the shape of the I-t curve, is significantly influenced by the applied Ubias between GE and CE. The current response of the W-Cap is stepwise significantly enhanced when negative Ubias are applied, however when using positive Ubias , the current answer is extremely reduced due to the smaller capacitance and impeded charge accumulation at the electrode. In particular, the peak current response of the W-Cap is with 89.5 µA (-1 V gate Ubias) 30 times higher compared to the current response of 2.9 µA when 0.75 V gate Ubias is applied.