FIG. 8.
Geometry of a partially wrapped NP showing the portion of a spherical shell (shaded green) of thickness δr and of volume δV within the NP located of radius r that interacts with a point A on the top leaflet of the bilayer. The element of volume dV is given in Eq. (16). Note that due to the short range of the interaction between the NP and the bilayer, the NP can only interact with a portion of the top leaflet that is close to it.