Figure 2.

Effect of reduced binding affinity ($k-$factor) in the size of particles that can be wrapped to the cell membrane. Four receptor densities were used, namely $\tilde{\xi }=0.1$ (solid line), $\tilde{\xi }=0.01$ (dashed line), $\tilde{\xi }=0.001$ (dashed-dotted line), $\tilde{\xi }=0.0001$ (dotted line). Prohibited particles are in the red zone, while favorable particles are shown with in green. In between these zones, particle will be blocked depending on the relative receptor/S-proteins density $\tilde{\xi }$.