Fig. 5
From: Magnetocontrollability of Fe7C3@C superparamagnetic nanoparticles in living cells
The effect of prolonged exposure (24 h) of magnet on MNPs agglomerates in the cells. a Phase contrast images of cells cultivated without magnet, b phase contrast images of cells cultivated with magnet placed at right side (distance near 2 mm), c–j correlative electron microscopy pictures of two cells shown on “b” at different magnifications. MNPs agglomerates preferably lie freely in the cytoplasm of the cells, a part of agglomerates is in contact with microtubules (red arrows). Photos “f, j” show a primary ultrastructure of MNPs