Figure 4.

Fluorescence image (A) and an enlarged image (B) of ROS stained cells that have internalized nanoparticles; Flow cytometry results: cells with (C) and without (D) internalized nanoparticles without X-ray; Cells without (E) and with (F) internalized nanoparticles with X-ray; Gel electrophoresis results of four samples (bands from left to right are from sample 1 to sample 4) (G).