Long-range attraction of particles adhered to lipid vesicles
Soft Condensed Matter
2016-10-11 v2 Biological Physics
Abstract
Many biological systems fold thin sheets of lipid membrane into complex three-dimensional structures. This microscopic origami is often mediated by the adsorption and self-assembly of proteins on a membrane. As a model system to study adsorption-mediated interactions, we study the collective behavior of micrometric particles adhered to a lipid vesicle. We estimate the colloidal interactions using a maximum likelihood analysis of particle trajectories. When the particles are highly wrapped by a tense membrane, we observe strong long-range attractions with a typical binding energy of 150 and significant forces extending a few microns.
Keywords
Cite
@article{arxiv.1602.01802,
title = {Long-range attraction of particles adhered to lipid vesicles},
author = {Raphael Sarfati and Eric R. Dufresne},
journal= {arXiv preprint arXiv:1602.01802},
year = {2016}
}