Fig. 4From: Effect of physicochemical character differences on the genotoxic potency of kaolinROS generation in kaolin-exposed cells. A549 and RAW264 cells were exposed to two kinds of kaolin at a dose of 100 μg/mL for 30, 60 and 180 min, and subsequently, ROS generating cells were determined by using FCM with DCFH-DABack to article page