Fig. 6. Cytotoxicity and magnetic field enhanced therapeutic effect in vitro. (A) Relative cell viability of HepG2 cells after 24 h of exposure to M-MZNs-PEG at different concentration under magnetic field for the first 0.5 h of exposure (M+) or not (M−), detected by CCK8 assay. (B) Relative viabilities of HepG2 cells after 24 h of treatment with free DOX, M-MZNs-DOX (M−) and M-MZNs-DOX under magnetic field (M+) at various DOX concentrations.
