Controlled release from a large capsule membrane corked with phosphatidylethanolamine bilayers: effect of temperature, pH and concentration of Ca2+ ions.
Permeations of a fluorescent probe entrapped in the inner aqueous phase of a large nylon capsule membrane corked with phosphatidylethanolamine bilayers were reversibly controlled by (i) the phase transition of bilayers, (ii) the ambient pH change, and (iii) the addition of Ca2+/EDTA from outside. Their signal-receptive permeation control could be reproduced repeatedly without damaging corking bilayers, in contrast to that of liposomal membranes.
D002118:Calcium / Q000494:pharmacology*; D002214:Capsules; D003692:Delayed-Action Preparations; D006863:Hydrogen-Ion Concentration; D008051:Lipid Bilayers; D010539:Permeability; D010714:Phosphatidylethanolamines; D013696:Temperature
D002214:Capsules; D003692:Delayed-Action Preparations; D008051:Lipid Bilayers; D010714:Phosphatidylethanolamines; D002118:Calcium