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(A) Real-time fluorescence images of mice after NRh-G-NPs (2.9 mg/mL) being injected into mice via the tail vein. (B) Fluorescence images of the heart (1), spleen (2), tumor (3), lung (4), intestine (5), kidney (6), and liver (7) resected from U87MG tumor-bearing mice 1.5 h after tail vein injection of NRh-G-NPs in mice. (C) Confocal z-scan imaging section of a U87MG tumor tissue slice between a depth of 35 µm. Scale bar: 100 µm.
