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The pair interaction between bilayer membrane-coated nanosized particles has been explored by using the selfconsistent field (SCF) theory. The bilayer membranes are composed of amphiphilic polymers. For different system parameters, the pair-interaction free energies are obtained. Particular emphasis is placed on the analysis of a sequence of structural transformations of bilayers on spherical particles, which occur during their approaching processes. For different head fractions of amphiphiles, the asymmetrical morphologies between bilayers on two particles and the inverted micellar intermediates have been found in the membrane fusion pathway. These results can benefit the fabrication of vesicles as encapsulation vectors for drug and gene delivery.
The pair interaction between bilayer membrane-coated nanosized particles has been explored by using the selfconsistent field (SCF) theory. The bilayer membranes are composed of amphiphilic polymers. on the analysis of a sequence of structural transformations of bilayers on spherical particles, which occur during their approaching processes. For different head fractions of amphiphiles, the asymmetrical morphologies between bilayers on two particles and the inverted micellar intermediates have been found in the membrane fusion pathway These results can benefit the fabrication of vesicles as encapsulation vectors for drug and gene delivery.