Geometric and thermodynamic considerations about the lipid vesicles formation in water (I. Unilamellar vesicles)

Influence of the electrical interface properties on the rheological behavior of sonicated soy lecithin dispersions

“…All closed structures (any multilamellar or unilamellar vesicles), independently of their shape (sphere, spheroid or ovoid and others) have the same topological index, whereas the flat bilayers show different topological indices. For this reason the transition mechanism (flat bilayers-closed structures) must include ruptures and reconstructions, with a necessary contribution of energy, like the evolution of vesicles towards smaller sizes a minor number of bilayers (for details see [20,21]). …”

“…Moreover, this work provides procedures for the preparation and characterization of vesicle dispersions by both, apparent viscosity and electrophoretic mobility measurements. Finally, the experimental and theoretical results [20,21] obtained at this moment, can constitute the base for establishing a quantitative relation (at least in a semiempiric model) between the apparent viscosity or hysteresis loop area and the volume fraction occupied by the vesicles, tacking into account also the electrical characteristics of these closed structures. The results obtained in other works [7,12] give an easy, at least empirical, correlation between the hysteresis loop areas or apparent viscosities with the electrophoretic mobility values of the segregated vesicles.…”

Biomimetic Block Copolymer Membranes

“…On the other hand, certain membrane structure details and many functions are known. Models of lipid membranes have been extensively studied, and information is available on self-assembly principles responsible for a bilayer formation, [1][2][3] interactions between lipids, [4] sterols [5] and membrane proteins. [6] Much interest has been focused on membrane proteins, both in the context of the self-assembly to function relationship, as well as structural details.…”

Biomimetic Block Copolymer Membranes

“…Models of lipid membranes have been extensively studied, and information is available on self-assembly principles responsible for a bilayer formation, [1][2][3] interactions between lipids, [4] sterols [5] and membrane proteins. [6] Much interest has been focused on membrane proteins, both in the context of the self-assembly to function relationship, as well as structural details.…”