Effect of valinomycin on the phase state and passive permeability for calcium ions of membranes from artificial phospholipids

: Effect of valinomycin on passive permeability for calcium ions of liposomes from artificial phospholipids of dimiristoillecithin and dipalmitoillecithin under the conditions of thermotropic structural transitions which were controlled by means of fluorescent probe of 3-metoxibenzantron. It was found that the incorporating of valinomycin into the membrane depends on the density of phospholipid packing. The change of the physical state of phospholipids under the effect of antibiotic was correlated with the change of passive permeability of liposomes for calcium ions.