Depletion potentials in colloidal mixtures of spheres and rods
نویسنده
چکیده
We calculate the depletion potential between two hard spheres of radii Rs and that between one hard sphere and a planar hard wall in a sea of hard rigid spherocylindrical rods of length L and radius Rr . Unlike earlier studies our approach takes into account the true geometry of the problem and gives, to first order in the rod density, the exact depletion potential for all values of Rs , L, and Rr .
منابع مشابه
Depletion forces between two spheres in a rod solution
– We study the depletion interaction between spherical particles of radius R immersed in a dilute solution of rigid rods of length L. The computed interaction potential is, within numerical accuracy, exact for any value of L/R. In particular we find that for L ∼ R, the depth of the depletion well is smaller than the prediction of the Derjaguin approximation. Our results bring new light into the...
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