Figure 6From: Low-solubility particles and a Trojan-horse type mechanism of toxicity: the case of cobalt oxide on human lung cellsTEM images of BEAS-2B cells exposed to Co 3 O 4 particles. BEAS2-B cells were exposed to Co3O4 particles at 1 μg.mL−1 Co (A, B, F), 5 μg.mL−1 Co (C) or 20 μg.mL−1 Co (D, E) for 1 h (A, B) or 24 h (C, D, E, F).Back to article page