On the possibility of extending the Noro-Frenkel generalized law of correspondent states to nonisotropic patchy interactions

Colloidal systems (and protein solutions) are often characterized by attractive interactions whose ranges are much smaller than the particle size. When this is the case and the interaction is spherical, systems obey a generalized law of correspondent states (GLCS), first proposed by Noro and Frenkel (Noro, M. G.; Frenkel, D. J. Chem. Phys. 2000, 113, 2941). The thermodynamic properties become insensitive to the details of the potential, depending only on the value of the second virial coefficient B2 and the density ρ. The GLCS does not generically hold for the case of nonspherical potentials. In this Letter, we suggest that when particles interact via short-ranged small-angular amplitude patchy interactions (so that the condition of only one bond per patch is fulfilled), it is still possible to generalize the GLCS close to the liquid-gas critical point. © 2007 American Chemical Society.


Published in:
Journal of Physical Chemistry B, 111, 33, 9702-9705
Year:
2007
ISSN:
15206106
Other identifiers:
Scopus: 2-s2.0-34548591682
View record in Web of Science
Scopus: 2-s2.0-34548591682
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 Record created 2010-01-27, last modified 2018-03-17


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