A magnetic personality: Magnetofection and gene delivery have been investigated in HepG2 cells using ternary organic–inorganic hybrid nanocomposites that contain deferoxamine‐coated iron oxide nanoparticles (NPs), circular plasmid DNA, and branched polyethylenimine (PEI). It was found that the cellular uptake efficacies depend on the ratio of components in PEI/DNA/NP, as assessed by Prussian staining, magnetic resonance imaging, and luciferase expression in the presence and absence of a magnet during transfection.
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