Fig. 4: Cellular internalization of FITC-labeled Au@PSa nanocomposites.

a Fluorescence images and flow cytometry analysis results of C6 and HepG2 cells treated with Au@Dex-2 and Au@Pul-2 for 4 h. b CLSM images of HepG2 cells treated with Au@Dex-2 and Au@Pul-2 for 0.5 and 4 h, where FITC-labeled nanocomposites are shown in green and DAPI-labeled nuclei are shown in blue