Effect of Polydispersity and Anisotropy in Colloidal and Protein Solutions: an Integral Equation Approach

Details Effect of Polydispersity and Anisotropy in Colloidal and Protein Solutions: an Integral Equation Approach Effect of Polydispersity and Anisotropy in Colloidal and Protein Solutions: an Integral Equation Approach

2011-05-24

arxiv.org/abs/1105.4723v1

Interdiscip. Sci. Comput. Life Sci 3, 251-265 (2011)

Physics

Condensed Matter

Soft Condensed Matter

17 pages, 7 figures, to appear in Interdiscip. Sci. Comput. Life Sci. (2011), special issue dedicated to Prof. Lesser Blum

Scientific paper

10.1007/s12539-011-0106-5

Application of integral equation theory to complex fluids is reviewed, with particular emphasis to the effects of polydispersity and anisotropy on their structural and thermodynamic properties. Both analytical and numerical solutions of integral equations are discussed within the context of a set of minimal potential models that have been widely used in the literature. While other popular theoretical tools, such as numerical simulations and density functional theory, are superior for quantitative and accurate predictions, we argue that integral equation theory still provides, as in simple fluids, an invaluable technique that is able to capture the main essential features of a complex system, at a much lower computational cost. In addition, it can provide a detailed description of the angular dependence in arbitrary frame, unlike numerical simulations where this information is frequently hampered by insufficient statistics. Applications to colloidal mixtures, globular proteins and patchy colloids are discussed, within a unified framework.

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