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Journal Article

Wrapping of Microparticles by Floppy Lipid Vesicles


Agudo-Canalejo,  Jaime       
Department of Living Matter Physics, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society;

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Spanke, H. T., Style, R. W., François-Martin, C., Feofilova, M., Eisentraut, M., Kress, H., et al. (2020). Wrapping of Microparticles by Floppy Lipid Vesicles. Physical Review Letters, 125: 198102. doi:10.1103/PhysRevLett.125.198102.

Cite as: https://hdl.handle.net/21.11116/0000-0007-7512-1
Lipid membranes, the barrier defining living cells and many of their subcompartments, bind to a wide variety of nano- and micrometer sized objects. In the presence of strong adhesive forces, membranes can strongly deform and wrap the particles, an essential step in crossing the membrane for a variety of healthy and disease-related processes. A large body of theoretical and numerical work has focused on identifying the physical properties that underly wrapping. Using a model system of micron-sized colloidal particles and giant unilamellar lipid vesicles with tunable adhesive forces, we measure a wrapping phase diagram and make quantitative comparisons to theoretical models. Our data are consistent with a model of membrane-particle interactions accounting for the adhesive energy per unit area, membrane bending rigidity, particle size, and vesicle radius.