Physics – Condensed Matter – Soft Condensed Matter
Scientific paper
2009-08-24
Physics
Condensed Matter
Soft Condensed Matter
21 pages, 11 figures, 0 tables
Scientific paper
We introduce a new numerical technique, namely triangular tessellation, to calculate the free energy associated with the adsorption of a colloidal particle at a flat interface. The theory and numerical scheme presented here are sufficiently general to handle non-convex patchy colloids with arbitrary surface patterns characterized by a wetting angle, e.g., amphiphilicity. We ignore interfacial deformation due to capillary, electrostatic, or gravitational forces, but the method can be extended to take such effects into account. It is verified that the numerical method presented is accurate and sufficiently stable to be applied to more general situations than presented in this paper. The merits of the tessellation method prove to outweigh those of traditionally used semi-analytic approaches, especially when it comes to generality and applicability.
Dijkstra Marjolein
Graaf Joost de
Roij René van
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