Fig. 2From: Effect of Nano-SiO2 on Expression and Aberrant Methylation of Imprinted Genes in Lung and TestisTEM images of lung and testis tissues of rats exposed to SiO2 NPs. a Morphology was assessed in lung tissues by SEM in controls. b Morphology was assessed in lung tissues by SEM in treated group. c Morphology was assessed in testis tissues by SEM in controls. d Morphology was assessed in testis tissues by SEM in treated group. Scale bars represent 2.0 μmBack to article page