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MicroPET/CT dynamic biodistribution of RGD nanocluster modified (high and low) and unmodified polyplexes in SCID mice with U87MG and HeLa tumors. a) MicroPET/CT images of RGD nanocluster modified and unmodified (control) DNA/PEI polyplexes at 10 min and 35 min. b) Graphs of accumulation in organs (left) and tumors (right) for RGD nanocluster modified and unmodified (control) DNA/PEI polyplexes. (*=U87MG, ← = HeLa)
