Fig. 6.
Reversal potential assessed as a function of BLM surface charge. Currents were induced by COOH-PNP interactions with BLM under a 10:1 (trans/cis) KCl gradient. Currents were recorded as voltage was increased continuously over a period of 15 s from −100 to +100 mV. Arrow indicates the corresponding reversal potential for each I-V relationship. Dotted lines indicate zero current.
