Fig. 2. (a) Schematic illustration of a Cy5/Cy3-labeled PARC structure. (b) Confocal fluorescence images of HCT116 cells treated with Cy5/Cy3-labeled PARC (150 nM) for 12 h. Cells were irradiated with 365 nm light (10 mW cm⁻²) for 5 min at 1 h. The nucleus and lysosome were stained with DAPI and LysoTracker, respectively. (c) Colocalization ratios of fluorescence signals between Cy3 and LysoTracker. Data are shown as mean ± SD.