| Issue |
Europhys. Lett.
Volume 46, Number 2, April II 1999
|
|
|---|---|---|
| Page(s) | 256 - 261 | |
| Section | Interdisciplinary physics and related areas of science and technology | |
| DOI | https://doi.org/10.1209/epl/i1999-00253-5 | |
| Published online | 01 September 2002 | |
Casimir and mean-field interactions between membrane inclusions subject to external torques
Laboratoire de Physico-Chimie Théorique, École Supérieure de Physique et de Chimie Industrielles de
la Ville de Paris
10 rue Vauquelin, F-75231 Paris Cédex 05, France
Received:
25
May
1998
Accepted:
27
January
1999
Inclusions embedded in fluctuating fluid membranes have been shown
to experience membrane mediated forces decaying as 
.
Modeling the inclusions as local constraints on the membrane
curvature tensor, we show that the presence of external torques
(mechanical or field-induced) strongly enhances and increases the
range of the interactions. Repulsive mean-field contributions and
attractive fluctuation (Casimir) contributions of range 
or
longer are found, which may combine to yield equilibrium distances.
PACS: 87.16.-b – Subcellular structure and processes / 34.20.-b – Interatomic and intermolecular potentials and forces, potential energy for collisions
© EDP Sciences, 1999
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