Figure 2

Results of the flow cytometry. The flow cytometry profile of the EMT cell cycle after co-culturing with PEG-coated AuNPs with different colloidal concentrations was performed with a fluorescence-activated cell sorter (FACS). There was no significant increase in the apoptotic cells as the nanoparticle concentration increased (A: Control, B: 0.1 mM, C: 0.5 mM, D: 1.0 mM), indicating that the apoptosis is not likely to cause the observed cell damage in this case.