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Spanke, Hendrik T. ; Style, Robert W. ; François-Martin, Claire ; Feofilova, Maria ; Eisentraut, Manuel ; Kress, Holger ; Agudo-Canalejo, Jaime ; Dufresne, Eric R.:
Wrapping of Microparticles by Floppy Lipid Vesicles.
In: Physical Review Letters.
Bd. 125
(2020)
Heft 19
.
- 198102.
ISSN 1079-7114
DOI: https://doi.org/10.1103/PhysRevLett.125.198102
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| Projekttitel: |
Offizieller Projekttitel Projekt-ID SFB 1357 Mikroplastik SFB1357 |
|---|---|
| Projektfinanzierung: |
Deutsche Forschungsgemeinschaft |
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.