论文信息 - Budding transition for bilayer fluid vesicles with area-difference elasticity

Budding transition for bilayer fluid vesicles with area-difference elasticity

We consider a curvature model for bilayer vesicles with an area-difference elasticity or non-local bending-energy term. Such a model interpolates between the bilayer-couple and spontaneous-curvature models. We report preliminary results for the budding transition. The shape transformation between the dumbbell and the pear phases can be continuous or discontinuous depending on the ratio of the non-local to the local bending rigidities.

Udo Seifert | Michael Wortis | Hans-Günther Döbereiner | Ling Miao

[1] E. Evans. Minimum energy analysis of membrane deformation applied to pipet aspiration and surface adhesion of red blood cells. , 1980, Biophysical journal.

[2] Rao,et al. Equilibrium budding and vesiculation in the curvature model of fluid lipid vesicles. , 1991, Physical review. A, Atomic, molecular, and optical physics.

[3] Reinhard Lipowsky,et al. The conformation of membranes , 1991, Nature.

[4] W. Helfrich. Elastic Properties of Lipid Bilayers: Theory and Possible Experiments , 1973, Zeitschrift fur Naturforschung. Teil C: Biochemie, Biophysik, Biologie, Virologie.

[5] U. Seifert,et al. Shape Transformations of Giant Vesicles: Extreme Sensitivity to Bilayer Asymmetry , 1990 .

[6] Seifert,et al. Shape transformations of vesicles: Phase diagram for spontaneous- curvature and bilayer-coupling models. , 1991, Physical review. A, Atomic, molecular, and optical physics.

[7] W. Helfrich. Blocked Lipid Exchange in Bilayers and its Possible Influence on the Shape of Vesicles , 1974, Zeitschrift fur Naturforschung. Section C, Biosciences.

[8] E. Evans,et al. Bending resistance and chemically induced moments in membrane bilayers. , 1974, Biophysical journal.