Flexoelectric fluid membrane vesicles in spherical confinement
| Autor: | N. Saidi-Amroun, Martin Michael Müller, Niloufar Abtahi, Lila Bouzar |
|---|---|
| Přispěvatelé: | Université des Sciences et de la Technologie Houari Boumediene [Alger] (USTHB), Laboratoire de Physique et Chimie Théoriques (LPCT), Institut de Chimie du CNRS (INC)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
[PHYS.PHYS.PHYS-BIO-PH]Physics [physics]/Physics [physics]/Biological Physics [physics.bio-ph] Rotational symmetry General Physics and Astronomy FOS: Physical sciences 02 engineering and technology Condensed Matter - Soft Condensed Matter 01 natural sciences Electric field 0103 physical sciences Perpendicular Physics - Biological Physics 010306 general physics ComputingMilieux_MISCELLANEOUS Phase diagram Condensed matter physics Vesicle 021001 nanoscience & nanotechnology Symmetry (physics) 3. Good health Folding (chemistry) Membrane Biological Physics (physics.bio-ph) Soft Condensed Matter (cond-mat.soft) 0210 nano-technology [PHYS.COND.CM-SCM]Physics [physics]/Condensed Matter [cond-mat]/Soft Condensed Matter [cond-mat.soft] |
| Zdroj: | EPL-Europhysics Letters EPL-Europhysics Letters, European Physical Society/EDP Sciences/Società Italiana di Fisica/IOP Publishing, 2020, 131 (1), pp.18001. ⟨10.1209/0295-5075/131/18001⟩ |
| ISSN: | 0295-5075 1286-4854 |
| DOI: | 10.1209/0295-5075/131/18001⟩ |
| Popis: | The morphology of spherically confined flexoelectric fluid membrane vesicles in an external uniform electric field is studied numerically. Due to the deformations induced by the confinement, the membrane becomes polarized resulting in an interaction with the external field. The equilibrium shapes of the vesicle without electric field can be classified in a geometrical phase diagram as a function of scaled area and reduced volume [1,2]. When the area of the membrane is only slightly larger than the area of the confining sphere, a single axisymmetric invagination appears. A non-vanishing electric field induces an additional elongation of the confined vesicle which is either perpendicular or parallel depending on the sign of the electric field parameter. Higher values of the surface area or the electric field parameter can reduce the symmetry of the system leading to more complex folding. We present the resulting shapes and show that transition lines are shifted in the presence of an electric field. The obtained folding patterns could be of interest for biophysical and technological applications alike. Comment: main text: 9 pages, 4 figures supplemental: 5 pages, 2 figures |
| Databáze: | OpenAIRE |
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