BIRS Workshop Lecture Videos
Long-wave dynamics of a lubrication layer under an inextensible elastic membrane Young, Yuan-Nan
The long-wave dynamics of an elastic sheet lubricated by a thin layer of viscous fluid onÂ a wetting substrate is examined using both numerical simulations and a quasistatic model. As a continuum model for a lipid bilayer, the elastic sheet has a electric capacitance thatÂ stores changes across the membrane. Within the lubrication framework we investigate theÂ electrohydrodynamics of the thin film coupled to the capacitive elastic membrane. NovelÂ nonlinear dynamics is found and results are useful to understand electroformation, a standard experimental procedure to fabricate unilamellar vesicles from planar lipid bilayer membrane. We also extend this theoretical framework to investigate the rupture of vesicles when settledÂ onto a glass substrate in an ionic solution.
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