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  Wrapping of Microparticles by Floppy Lipid Vesicles

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.

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 Creators:
Spanke, Hendrik T., Author
Style, Robert W., Author
François-Martin, Claire, Author
Feofilova, Maria, Author
Eisentraut, Manuel, Author
Kress, Holger, Author
Agudo-Canalejo, Jaime1, Author                 
Dufresne, Eric R., Author
Affiliations:
1Department of Living Matter Physics, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2570692              

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 Abstract: 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.

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 Dates: 2020-11-05
 Publication Status: Published online
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 Identifiers: DOI: 10.1103/PhysRevLett.125.198102
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Title: Physical Review Letters
Source Genre: Journal
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Pages: - Volume / Issue: 125 Sequence Number: 198102 Start / End Page: - Identifier: ISSN: 0031-9007
ISSN: 1079-7114