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Title: Homogeneous Crystal Nucleation Near a Metastable Fluid-Fluid Phase Transition
Author: Xu, Limei
Buldyrev, V. S. (Vladimir Sergeevich)
Stanley, H. Eugene (Harry Eugene), 1941-
Franzese, Giancarlo
Keywords: Física de partícules
Particle physics
Issue Date: 27-Aug-2012
Publisher: American Physical Society
Abstract: Several scenarios exist for the protein crystallization and aggregation in solutions near a metastable fluid-fluid phase separation below the solubility line. Based on computations, it was proposed that the fluid-fluid critical point enhances the crystallization rate by many orders of magnitude, while, based on experiments, it was proposed that the fluid-fluid spinodal controls the crystallization rate. Using molecular dynamic simulations for an isotropic model with sticky interaction, we show that neither of these scenarios adequately describes the crystallization mechanism near a metastable fluid-fluid phase separation. We find that the emergence of the high-density fluid inside the spinodal drastically enhances the crystal nucleation in the subcritical region following Ostwald's rule of stages.
Note: Reproducció del document publicat a:
It is part of: Physical Review Letters, 2012, vol. 109, num. 9, p. 095702
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ISSN: 0031-9007
Appears in Collections:Articles publicats en revistes (Física de la Matèria Condensada)

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