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Abstract:
Theoretical expression for free energy F of spherical lipid vesicle containing through pore in the presence of diffusional potential difference is derived. It is assumed that the pore radius is small in comparison with vesicle size. According to estimation the variation of elastic energy of vesicle membrane with pore radius is small. Therefore electrical breakdown becomes reversible for reasonable region of r values. Conditions of equilibrium and dynamic modes of breakdown are analyzed. Random oscillation mode of intravesicular label discharge is shown for some region of vesicle parameters.