Figure 3From: Low-solubility particles and a Trojan-horse type mechanism of toxicity: the case of cobalt oxide on human lung cells Cobalt oxide solubilization ratios in LHC9 medium (A) and artificial lysosomal fluid (ALF) (B), for Co 3 O 4 particle suspensions corresponding to IC25, IC50 and IC75 concentrations of cobalt, after 72 h and 7 days. Back to article page