Fig. 6From: Fabrication of Hybrid Nanostructures Based on Fe3O4 Nanoclusters as Theranostic Agents for Magnetic Resonance Imaging and Drug DeliveryConfocal fluorescence microscopic images of A549 cells incubated with the Fe3O4 NC/PAH/PSS/DOX hybrid nanostructures at 37 °C for a 0.5 h and b 24 h. Scale bar, 20 μmBack to article page