Figure 7: Transmission electron microscopy of tumours.

TEM images of MCF-7 tumours isolated 5, 24, 48 or 96 h after exposure to 5NP-1Tz or 5NP-2Tz. In the insert of each single figure, the corresponding higher magnification image is reported. NPs are evidenced by arrows; d, desmosome; n, nucleus; m, mitochondrion. The scale bars correspond to 100 nm.