[Properties of bilayer lipid membranes with different surface charges in the presence of tetraalkylammonium salts].
It is shown that with the growth of the radius of tetraalkylammonium ions the conductivity of the membrane increases. With an increase of the dimensions of penetrating ions the maximum cation selectivity reached in the beginning decreases with a further growth of cation radius. A negative charge on the membrane surface results in a higher cation selectivity and conductance mechanism is observed at the transition to the cations with a large radius at their high enough concentration in the aqueous solution. It can be explaind by the formation of triplet in the membrane phase which aid in the penetration of C1-.
D004553:Electric Conductivity; D008567:Membranes, Artificial; D010539:Permeability; D010743:Phospholipids; D000644:Quaternary Ammonium Compounds
D008567:Membranes, Artificial; D010743:Phospholipids; D000644:Quaternary Ammonium Compounds
Izuchenie svoĭstv bisloĭnoĭ lipidnoĭ membrany s raznymi poverkhnostnymi zariadami v prisutstvii tetraalkilammonievykh soleĭ