The European Physical Journal E

, Volume 12, Issue 2, pp 265–273

Indirect interactions of membrane-adsorbed cylinders


DOI: 10.1140/epje/i2003-10058-x

Cite this article as:
Weikl, T.R. Eur. Phys. J. E (2003) 12: 265. doi:10.1140/epje/i2003-10058-x


Biological and biomimetic membranes often contain aggregates of embedded or adsorbed macromolecules. In this paper, the indirect interactions of cylindrical objects adhering to a planar membrane are considered theoretically. The adhesion of the cylinders causes a local perturbation of the equilibrium membrane shape, which leads to membrane-mediated interactions. For a planar membrane under lateral tension, the interaction is repulsive for a pair of cylinders adhering to the same side of the membrane, and attractive for cylinders adhering at opposite membrane sides. For a membrane in an external harmonic potential, the interaction of adsorbed cylinders is always attractive and increases if forces perpendicular to the membrane act on the cylinders.

Copyright information

© Springer-Verlag Berlin/Heidelberg 2003

Authors and Affiliations

  1. 1.Max-Planck-Institut für Kolloid- und GrenzflächenforschungPotsdamGermany