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Three-dimensional multicomponent vesicles: dynamics and influence of material properties

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Abstract

In this work, the nonlinear hydrodynamics of a three-dimensional multicomponent vesicle in shear flow are explored. Using a volume- and area-conserving projection method coupled to a gradient-augmented level set and surface phase field method, the dynamics are systematically studied as a function of the membrane bending rigidity difference between the components, the speed of diffusion compared to the underlying shear flow, and the strength of the phase domain energy compared to the bending energy. Using a pre-segregated vesicle, three dynamics are observed: stationary phase, phase-treading, and a new dynamic called vertical banding. These regimes are very sensitive to the strength of the domain line energy, as the vertical banding regime is not observed when the line energy is larger than the bending energy. The findings demonstrate that a complete understanding of multicomponent vesicle dynamics requires that the full three-dimensional system be modeled, and show the complexity obtained when considering heterogeneous material properties.

Graphical abstract: Three-dimensional multicomponent vesicles: dynamics and influence of material properties

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Publication details

The article was received on 26 May 2018, accepted on 17 Aug 2018 and first published on 17 Aug 2018


Article type: Paper
DOI: 10.1039/C8SM01087K
Citation: Soft Matter, 2018, Advance Article
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    Three-dimensional multicomponent vesicles: dynamics and influence of material properties

    P. Gera and D. Salac, Soft Matter, 2018, Advance Article , DOI: 10.1039/C8SM01087K

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