Polymer-induced tubulation in lipid vesicles

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dc.creatorCampelo, F.
dc.creatorHernandez-Machado, A.
dc.date2008-04-21
dc.date.accessioned2026-07-07T09:33:47Z
dc.date.available2026-07-07T09:33:47Z
dc.descriptionA mechanism of extraction of tubular membranes from a lipid vesicle is presented. A concentration gradient of anchoring amphiphilic polymers generates tubes from bud-like vesicle protrusions. We explain this mechanism in the framework of the Canham-Helfrich model. The energy profile is analytically calculated and a tube with a fixed length, corresponding to an energy minimum, is obtained in a certain regime of parameters. Further, using a phase-field model, we corroborate these results numerically. We obtain the growth of tubes when a polymer source is added, and the bud-like shape after removal of the polymer source, in accordance with recent experimental results.
dc.identifierhttps://arxiv.org/abs/0804.3329
dc.identifierhttp://arxiv.org/abs/0804.3329
dc.identifierPhys. Rev. Lett. 100, 158103 (2008)
dc.identifierdoi:10.1103/PhysRevLett.100.158103
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/159254
dc.subjectSubcellular Processes
dc.subjectSoft Condensed Matter
dc.subjectQuantitative Methods
dc.titlePolymer-induced tubulation in lipid vesicles
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