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Uptake of SKOV-3 cells after 24 h of incubation with 25 mg/mL of anionic NPs. (a) Control cells; (b) Fe3O4@CMCS covalent; (c) Fe3O4@CMCS electrostatic; (d) Fe3O4@heparin. As shown in (b, c, and d) internalized NPs did not interfere with mitosis process. Magnification: 40x.
