Carrier-mediated transport across phospholipid-composite membranes containing valinomycin



Artificial membranes containing a phospholipid and valinomycin were prepared. Valinomycin in these membranes acts as an ionophore (a mobile carrier for potassium ions) at a temperature above the phase transition point of the phospholipid. Experimental data were explained by the theory of carrier-mediated transport accompanying formation of a carrier-ion pair complex.