Long-range elastic forces between membrane inclusions in spherical vesicles

被引：46

作者：

Dommersnes, PG

Fournier, JB

Galatola, P

机构：

[1] Ecole Super Phys & Chim Ind Ville Paris, Lab Physicochim Theor, F-75231 Paris 05, France

[2] Politecn Torino, Dipartimento Fis, Ist Nazl Fis Mat, I-10129 Turin, Italy

来源：

EUROPHYSICS LETTERS | 1998年 / 42卷 / 02期

关键词：

D O I：

10.1209/epl/i1998-00235-7

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We compute the elastic interaction between two identical conical inclusions in a spherical vesicle. We find it always repulsive and proportional to the square of the contact angle. At small angular separations Theta it decays as Theta(-4), as in the case of planar membranes. After a crossover Theta(c) similar to psi(0.54) where psi is the inclusions' aperture, it decays as Theta(-0.33), yielding a much stronger force than in a flat membrane. Finally, a quadratic minimum around the anti-polar configuration Theta = pi is reached.

引用

页码：233 / 238

页数：6