Fig. 1From: Effect of physicochemical character differences on the genotoxic potency of kaolinCrystal appearance and size distributions of kaolins. a SEM micrographs of kaolines obtained at E = 20 kV, X 3000 (left) and X 10,000 (right). b Size distributions of kaolins. Kaolins were suspended in saline containing 0.05% Tween 80 at a concentration of 0.5 and 2.0 mg/mL (dashed line and solid line, respectively) with 10 min sonicationBack to article page