Colloid-polymer mixtures in the protein limit
Soft Condensed Matter
2009-11-07 v1 q-bio
Abstract
We computed the phase-separation behavior and effective interactions of colloid-polymer mixtures in the "protein limit", where the polymer radius of gyration is much larger than the colloid radius. For ideal polymers, the critical colloidal packing fraction tends to zero, whereas for interacting polymers in a good solvent the behavior is governed by a universal binodal, implying a constant critical colloid packing fraction. In both systems the depletion interaction is not well described by effective pair potentials but requires the incorporation of many-body contributions.
Keywords
Cite
@article{arxiv.cond-mat/0210528,
title = {Colloid-polymer mixtures in the protein limit},
author = {Peter G. Bolhuis and Evert Jan Meijer and Ard A. Louis},
journal= {arXiv preprint arXiv:cond-mat/0210528},
year = {2009}
}
Comments
4 pages, 3 figures, submitted to Physical Review Letters