Indirect interactions of membrane-adsorbed cylinders
Abstract
Biological and biomimetic membranes often contain aggregates of embedded or adsorbed macromolecules. In this article, 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.
Cite
@article{arxiv.cond-mat/0309322,
title = {Indirect interactions of membrane-adsorbed cylinders},
author = {Thomas R. Weikl},
journal= {arXiv preprint arXiv:cond-mat/0309322},
year = {2009}
}
Comments
9 pages, 8 figures; typos corrected