Brownian Dynamics simulations understanding particle size distribution broadening

3 Brownian Dynamics simulations understanding particle size distribution broadening 

If a particular particle is located in proximity to other growing particles (within 10 particle radii, rj, it can be deprived of reactant relative to particles that are located in relative isolation on the surface. This means that even when nanoparticles nucleate instantaneously, a distribution of growth rates can exist for individual particles on the surface. This deleterious phenomena, which we have termed interparticle diffusional coupling or IDC, does not occur for the growth of colloid particle suspensions because particles are constantly moving during growth and they typically do not persist in proximity to other particles. 

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