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Inhibition of uptake of HighcRGD-usGNPs and LaCer control in U-87 MG cells. (a–e) Cells were pre-treated with the indicated drugs for 30 min, then HighcRGD-usGNPs at 9 nM final concentration and 1 μg/mL LaCer were added. Live cell images were acquired following a 2 h incubation, with filter settings optimized for BODIPY (LaCer, pseudo-colored green) and Cy5 (HighcRGD-usGNPs, red).
