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Confocal microscopy images of SKOV-3 cells after incubation with FITC-HA-SPION. (a) DAPI channel showing the location of nucleus; (b) FITC channel showing the location of the NPs; and (c) overlay of DAPI, FITC, and DIC images. These images clearly showed that the NPs were inside the cells. The scale bar is 10 μm.
