Fig. 1
From: Is aggregated synthetic amorphous silica toxicologically relevant?
Preparation of synthetic amorphous silica suspensions (SAS). DE-AGGR - 2.56 mg/mL of SAS sonicated with an energy of 7056 J (a); AGGR - 2.56 mg/mL of SAS vortexed for 10 s (b); SuperN (0.64 mg/mL) - AGGR dispersion left undisturbed for 15 min after vortexing and fractionated in supernatant (c) and PREC (1.92 mg/mL) - precipitates of AGGR (d)