Figure 6

(a) Reactive oxygen species (ROS) levels in target tissue silk glands (SG) and metabolic tissue of the fat body (FB) at 4 h, 8 h and 12 h after exposure to QDs and (b) Hematoxylin-eosin (HE) staining of tissue morphology at 24 h after exposure. 0.56 nM of CdTe QDs was administered via oral injection. Water was injected as a negative control. FB’ is a partial enlarged view of FB. Nuc, nucleus. Vac, vacuolation. Bars are 100 μm.