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LSCM images of U-87 MG cells incubated with R6G-ES-GON-rBSA3 or R6G-ES-GON-rBSA3-LF-RGD2 without or with free RGD2 blocking. The blocking study was conducted in the presence of 200 times of free RGD2. The cells untreated with nanoparticles are used as the control. The nucleus stained with Hoechst 33258 is blue, and the cytoskeleton stained with phalloidin-FITC is green. The R6G-loaded nanoparticles are red.
