Shape transitions of giant liposomes induced by an anisotropic spontaneous curvature.
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.
Sandre
O
O
Laboratoire Milieux Désordonnés et Hétérogènes, UMR 7603 Centre National de la Recherche Scientifique/Université Pierre et Marie Curie, Université Denis Diderot, Tour 13, Case 78, 4 place Jussieu, 75252 Paris Cedex 05, France.
Ménager
C
C
Prost
J
J
Cabuil
V
V
Bacri
J C
JC
Cebers
A
A
D016880:Anisotropy; D003102:Colloids; D005290:Ferric Compounds / Q000737:chemistry; D008081:Liposomes / Q000737:chemistry* / Q000378:metabolism; D008280:Magnetics; D008962:Models, Theoretical; D009994:Osmolar Concentration; D010713:Phosphatidylcholines / Q000737:chemistry; D055672:Static Electricity
D003102:Colloids; D005290:Ferric Compounds; D008081:Liposomes; D010713:Phosphatidylcholines; C000499:ferric oxide; C017251:1,2-oleoylphosphatidylcholine