Double-mode relaxation of highly deformed vesicles
arXiv:2003.02063 · doi:10.1103/PhysRevE.102.010605
Abstract
Lipid vesicles are known to undergo complex conformational transitions, but it remains challenging to systematically characterize non-equilibrium membrane shape dynamics. Here, we report the direct observation of lipid vesicle relaxation from highly deformed shapes using a Stokes trap. Vesicle shape relaxation is described by two distinct characteristic time scales governed by the bending modulus and membrane tension. Interestingly, experimental results are consistent with a viscoelastic model of a deformed membrane. Overall, these results show that vesicle relaxation is governed by an interplay between membrane elastic moduli, surface tension, and vesicle deflation.
arXiv comment5 pages, 3 figures
References in corpus (9)
- Topology and Dynamics of Active Nematic Vesicles
- Fluid membranes in hydrodynamic flow fields: Formalism and an application to fluctuating quasi-spherical vesicles in shear flow
- Dynamics of nearly spherical vesicles in an external flow
- Vesicles in a Poiseuille flow
- Vesicle dynamics in elongation flow: Wrinkling instability and bud formation
- Shape diagram of vesicles in Poiseuille flow
- Effective Area-Elasticity and Tension of Micro-manipulated Membranes
- Orientation control and nonlinear trajectory tracking of colloidal particles using microfluidics
- Flow topology during multiplexed particle manipulation using a Stokes Trap