Representative qualitative clonogenic cell survival assay in murine YUMM1.G1 and human A375 melanoma cells regrown after treatments in fresh medium (1), PLL-CNC NPs (2), free vemurafenib (3), free 177Lu (4), [177Lu]Lu-CNC NPs (5), and [177Lu]Lu-CNC-V NPs (6) at doses of 1 MBq/mL for 177Lu, 40 μg/mL for CNC NPs, and 0.1 μM for vemurafenib at 6, 24, and 48 h.