“…11 These measurements typically involve three different readout principles occurring in the individual collision events, namely, the obstruction of a reaction at an electrode, 12,13 the direct electrolysis of colliding particles, [14][15][16] and the electrochemical reactions catalyzed at the surfaces of the colliding particles. [17][18][19] In addition to these, the disturbance of the double layer when particles collide with the electrode interface may induce non-faradaic responses. [20][21][22] The detected signals manifest as sudden, discrete drops or rises of the otherwise smooth i-t background during the collision events.…”