Figure 2From: Impact of agglomeration state of nano- and submicron sized gold particles on pulmonary inflammationTEM of 250 nm particles. A) Some 250 nm gold particles consisted of multiple smaller units of about 50 nm. B) Secondary electron image of well faceted and grouped 250 nm particles. C) Example of a fractured 250 nm gold particle, secondary electron image. Bars represent 100 nm.Back to article page