Istituto di Matematica Applicata e Tecnologie Informatiche     
Rosso R., Virga E. G. Stability of Lipid Bridges. Preprint ercim.cnr.ian//2001-1261, 2001.
Lipid bridges are lipid membranes linking two parallel, adhesive walls. For appropriate values of both physical and geometrical parameters, there are two types of such bridges, which look quite different from one another. Here we apply a general condition valid for two-dimensional lipid architectures to show that when the elastic energy density of the lipid membrane is quadratic in the mean curvature, both these bridges are locally stable. Moreover, we give a criterion to decide about their global stability when they happen to coexist at equilibrium.
Subject Stability, lipid membranes

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