[Electrostriction of vesicular membranes]

Methods for consideration of membrane electrostriction existing in literature are critically analysed. Two cases of electrostriction are dealt with: the membrane is closed (vesicles), the membrane exchanges molecules with reservoir (BLM with meniscus). Deformations and elastic forces arising in uncharged vesicle with the constant number of particles when the electrostatic potential difference is applied across the membrane are calculated.