Figure 2. ENM-specific DSEcr and Dispersion Stability.

a) Determination of DSEcr for 10nm Ag15%/SiO2. b) average hydrodynamic diameter of suspension sonicated below DSEcr; at time 0 and 24 hours post sonication; c) average hydrodynamic diameter of suspension sonicated at the DSEcr; at time 0 and 24 hours post sonication; d) average hydrodynamic diameter of suspensions sonicated above DSEcr; at time 0 and 24 hours post sonication.