Dynamics of transient pores in stretched vesicles.
We image macroscopic transient pores in mechanically stretched giant vesicles. Holes open above a critical radius r(c1), grow up to a radius r(c2), and close. We interpret the upper limit r(c2) by a relaxation of the membrane tension as the holes expand. The closing of the holes is caused by a further relaxation of the surface tension when the internal liquid leaks out. A dynamic model fits our data for the growth and closure of pores.
Sandre
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Laboratoire Physico-Chimie Curie-Unité Mixte de Recherche 168 Centre National de la Recherche Scientifique/Institut Curie, 11, rue Pierre et Marie Curie 75248 Paris CEDEX 05, France. Sandre@curie.fr
Moreaux
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L
Brochard-Wyart
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D002463:Cell Membrane Permeability; D004594:Electrophysiology; D005990:Glycerol / Q000494:pharmacology; D008051:Lipid Bilayers / Q000737:chemistry; D008564:Membrane Potentials; D008567:Membranes, Artificial; D008954:Models, Biological; D008962:Models, Theoretical; D011107:Polylysine / Q000737:chemistry; D013499:Surface Properties; D013997:Time Factors
D008051:Lipid Bilayers; D008567:Membranes, Artificial; D011107:Polylysine; D005990:Glycerol