Fig. 5From: Folic acid-targeted iron oxide nanoparticles as contrast agents for magnetic resonance imaging of human ovarian cancerPrussian blue-stained Skov3 cells incubated with PBS (a), non-targeted Fe3O4 NPs (b, c) and FA-targeted Fe3O4 NPs (d, e) in given Fe concentration of 0.2 mM (b, d) and 0.4 mM (c, f). Scale bar = 20 μmBack to article page