In the previous section were discussed how the NP-IL interaction and the domain segregation in the solvent control the association of two NPs forming a dimer. This section will focus on how the same variables affect the collective behavior in a dispersion containing several aggregation is thermodynamically favorable and, for the dispersions in C4 (top 2 panels in Figure ), it is noticeable the appearance of a peak in the contact distance (between 4.5 and 5.0 nm) in less than 100 ns and its fast increase as more NPs get into contact.