Depletion Interaction Between Two Big Spheres

Using the Deijaguin approximation (2.27) we obtain the interaction between two big spheres due to the small spheres by integration  

Using (2.84) for the interaction potential per unit area in (2.93) we obtain 

In Fig. 2.26 we present the interaction potential between spheres (valid up to or, equivalently, up to cfp ). In [47] results are presented for the interaction valid up to nl including a comparison with the computer simulation results of Biben et al. [54]. 

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