Phase diagram of single vesicle dynamical states in shear flow

We report the first experimental phase diagram of vesicle dynamical states in a shear flow presented in a space of two dimensionless parameters suggested recently by V. Lebedev et al. To reduce errors in the control parameters, 3D geometrical reconstruction and determination of the viscosity contras...

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Bibliographic Details
Published in:Physical review letters 2009-03, Vol.102 (11), p.118105-118105, Article 118105
Main Authors: Deschamps, J, Kantsler, V, Steinberg, V
Format: Article
Language:English
Subjects:
Biological Physics
Biomechanics
Condensed Matter
Engineering Sciences
Fluid mechanics
Fluids mechanics
Lipid Bilayers - chemistry
Liposomes - chemistry
Mechanics
Models, Biological
Physics
Soft Condensed Matter
Viscosity
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Summary:We report the first experimental phase diagram of vesicle dynamical states in a shear flow presented in a space of two dimensionless parameters suggested recently by V. Lebedev et al. To reduce errors in the control parameters, 3D geometrical reconstruction and determination of the viscosity contrast of a vesicle in situ in a plane Couette flow device prior to the experiment are developed. Our results are in accord with the theory predicting three distinctly separating regions of vesicle dynamical states in the plane of just two self-similar parameters.
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.102.118105