Fig. 1.

Typical chronopotentiometric curve for bilayer lipid membrane without pores (formed from solution containing phosphatidylcholine and cholesterol in a 3:7 molar ratio; current density 56 nA cm⁻²). An equivalent circuit describing the electrical properties of the bilayer is depicted in the inset: C _m—membrane capacitance, R _m—membrane resistance, U _m—voltage across membrane, I—total current flowing through electrodes and membrane, I _C—capacitance current of membrane, I _R—resistance current of membrane