EN
The modyfication of model lipid membranes by amphiphilic ammonium salts of the general formulae |(CH3)3NCH2COOC12H25|+ • Cl (V-12), |(CH3)2C12H25NCH2COOC2H4Cl|+ • Cl- (V-A) and |(CH3)3NCH2COOC2H4Cl|+ • Cl- (V-B) were studied. It was found that the efficiency of liposomal and planar lipid membranes (BLM) modified by these salts can be sequenced as follows: V-12, VA, and VB. It was also found that sulpate-ion permeation through liposomal membranes modified by the salts studied was temperature-dependent and changed significantly in the case of membranes modified with V-12 and V-A, while the rate constant was only slightly dependent on temperature for liposomes modified by V-8 salt.