Figure 2. Quantitative analysis of optimal transfection of different concentration of Cy3-labeled scrambled siRNA for SRA01/04 cells. The Cy3-labeled scrambled siRNA transfection rates of SRA01/04 cells after incubating for 6 h were evaluated by flow cytometry. A: Blank group: 0%. B: 60 nM Cy3-labeled scrambled siRNA: 0.8%. C: 80 nM Cy3-labeled scrambled siRNA: 49.6%. D: 100 nM Cy3-labeled scrambled siRNA: 8.8%.