Fig. 3

MFMNPs arrangement inside the cell in magnetic field expose. a Confocal micrograph of MFMNPs aggregates inside HT1080 cell after 16 h of co-cultivation in constant magnetic field exposure, the dotted line displays the cell boundaries. b, c 3D reconstructions of this cell made on the basis of serial TEM micrograph: green—cell plasma membrane, blue—cell nucleus, red—MFMNPs aggregates