Figure 7From: ISDD: A computational model of particle sedimentation, diffusion and target cell dosimetry for in vitro toxicity studiesTransport Rates for TiO 2 . ISDD calculated fraction of nano and micron scale TiO2 particles delivered to cells over the duration of a 24 hour in vitro study with a media height 3.1 mm. Different rates of particle transport result in different time-courses for delivery to cells, which is only complete for large particles by 24 hours.Back to article page