291219.fig.003a
(a)
291219.fig.003b
(b)
Figure 3: Cy5-labeled DNA delivery into cells via pH-responsive nanoparticles. HCT116 cells were incubated with pH-responsive nanoparticles containing Cy5-DNA for 0–4 hours and analyzed by flow cytometry (a) and microscopy (b) after 4 hours.