Figure 23.

Two ellipsoidal particles at an interface. The angles ${\omega }_1$ and ${\omega }_2$ indicate the orientation of the particle 1 or 2, respectively, with respect to the vector joining the centers of the two particles. The center-to-center distance is given by $d_{cc}$ for a particle of aspect ratio $b/a$. Reprinted with permission from [43]. Copyright (2014) American Chemical Society.