Fig. 5
From: Transient cell stiffening triggered by magnetic nanoparticle exposure
TEM imaging of F9 cells labeled with magnetic nanoparticles. a Cells incubated with nanoparticles at [Fe] = 50 mM for 5 min incubation. b Cells labeled at [Fe] = 4 mM for 2 h incubation. Black arrows show nanoparticles accumulated near the cell membrane, whereas red and blue ones depict those located in early and late or lysosomal endosomes, respectively