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. 2021 Jun 11;11(34):20850–20858. doi: 10.1039/d1ra02875h

Fig. 4. (a) Fluorescent images of HeLa cells incubated with PBS, free ICG, and ICG@PSMA NPs under CLSM. Scale bar: 30 μm. λem = 800–1000 nm, λex = 480 nm (DAPI), λex = 640 nm (ICG). Images were obtained at a magnification of 20× objective. (b) Corresponding fluorescence quantitative analysis.

Fig. 4