Large Deformations of Giant Floppy Vesicles in Shear Flow

Noushine Shahidzadeh; Daniel Bonn; Olivier Aguerre-Chariol; Jacques Meunier

doi:10.1103/PhysRevLett.81.4268

Large Deformations of Giant Floppy Vesicles in Shear Flow

Noushine Shahidzadeh, Daniel Bonn, Olivier Aguerre-Chariol, and Jacques Meunier

Phys. Rev. Lett. 81, 4268 – Published 9 November 1998

Abstract

The flow deformation and rheology of vesicles of a soluble surfactant are studied. Direct observation under shear flow reveals that the vesicles become strongly elongated to form an entangled structure of connected bilayer tubes. The large deformation is due to the permeability of the membrane and the large solubility of the surfactant. The formation of the entangled structure is observed in the rheology as a strong increase of the viscosity with time.

Received 15 April 1998

DOI:https://doi.org/10.1103/PhysRevLett.81.4268

Authors & Affiliations

Noushine Shahidzadeh¹, Daniel Bonn¹, Olivier Aguerre-Chariol², and Jacques Meunier¹

¹Laboratoire de Physique Statistique de l'ENS, 24 rue Lhomond, 75 231 Paris Cedex 05, France
²Rhodia Recherches CRA, 52, Rue de La Haie Coq, 93308 Aubervilliers Cedex, France