6533b829fe1ef96bd12898ea

RESEARCH PRODUCT

Shape transitions of giant liposomes induced by an anisotropic spontaneous curvature

Valérie CabuilAndrejs CebersOlivier SandreJacques ProstChristine MénagerJean-claude Bacri

subject

Field (physics)Static ElectricityRotational symmetryFOS: Physical sciencesNanoparticle02 engineering and technologyCondensed Matter - Soft Condensed Matter[CHIM.INOR]Chemical Sciences/Inorganic chemistryCurvatureFerric Compounds01 natural sciencesMagneticsColloid0103 physical sciencesColloids010306 general physicsAnisotropyDebye lengthPhysicsCondensed matter physicsOsmolar Concentration[CHIM.MATE]Chemical Sciences/Material chemistryModels Theoretical021001 nanoscience & nanotechnologyGiant liposomesSymmetry (physics)Magnetic field[CHIM.POLY]Chemical Sciences/PolymersClassical mechanicsLiposomesMagnetic nanoparticlesPhosphatidylcholinesSoft Condensed Matter (cond-mat.soft)AnisotropySpontaneous curvature0210 nano-technology[PHYS.COND.CM-SCM]Physics [physics]/Condensed Matter [cond-mat]/Soft Condensed Matter [cond-mat.soft]

description

International audience; We explore how a magnetic field breaks the symmetry of an initially spherical giant liposome filled with a magnetic colloid. The condition of rotational symmetry along the field axis leads either to a prolate or to an oblate ellipsoid. We demonstrate that an electrostatic interaction between the nanoparticles and the membrane triggers the shape transition. PACS numbers: 75.

https://doi.org/10.1103/physreve.62.3865