[Inclusion of erythrocyte membranes into planar lipid bilayers]. / Vkliuchenie membrany éritrotsitov v ploskie bisloinye lipidnye membrany.

Planar lipid bilayer membranes (PM) were modified by membrane vesicles prepared from rabbit erythrocytes. Vesicles contained amphotericin B and tetraethylammonium. Voltage-current relationships of modified PM were investigated. Semi-fusion, the inclusion of sealed vesicles into PM with formation of contact bilayer consisting of one lipid monolayer of the erythrocyte membrane and another monolayer of PM, was shown to appear some minutes after the contact of vesicles with PM. Some tens of minutes later fusion of the erythrocyte membranes with PM was observed. Fusion occurred either by opening out of vesicles or by incorporation of sealed vesicles into PM. The temperature rise increased the fusion probability. Sealed vesicles were incorporated in PM asymmetrically: the contact area was always smaller than the noncontact vesicle surface.

[Two stages of contact interaction of liposomes with bimolecular lipid membranes]. / Dve stadii kontaktnogo vzaimodeistviia liposom i biomolekuliarnykh lipidnykh membran.

Interaction of liposomes with BLM is confirmed to consist of two stages. The first stage is a semi-fusion of liposomes with BLM. On this stage the bilayer in a contact area is formed of one liposome monolayer and another one of BLM. The second stage is inclusion of liposome bilayers into BLM; it occurs some tens of minutes after the first one. It occurs either by fusion or incorporation. The fusion to incorporation ratio increases with temperature. Liposomes are incorporated in BLM asymmetrically: the contact area of the liposome bilayer is always smaller than the free one.