Fig. 7

Zinc distribution images (×40) and their accumulation in C. elegans exposed to ZnO-NPs for 24 h. a control. b 0.2 g/l-100 nm. c 0.6 g/l-100 nm. d 1.0 g/l-100 nm. e 1.5 g/l-100 nm. f 2.0 g/l-100 nm. g 0.2 g/l-50 nm. h 0.6 g/l-50nm. i 1.0 g/l-50 nm. j 1.5 g/l-50 nm. k 2.0 g/l-50 nm. l 0.2 g/l-10 nm. m 0.6 g/l-10 nm. n 1.0 g/l-10 nm o 1.5 g/l-10m. p 2.0 g/l-10 nm