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. 2023 Aug 31;10:rbad073. doi: 10.1093/rb/rbad073

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© The Author(s) 2023. Published by Oxford University Press.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 4. — (A) In vivo MR imaging of tumor-bearing mice after injection of IR780@BSA@SPIO nanosystem. Color according to the local gray value. (B) NIR-II fluorescence imaging of tumor-bearing mice administrated with various drugs and isolated organs and tumors after 72 h (H: heart; Li: liver; S: spleen; L: lung; K: kidney; T: tumor). Semi-quantitative analysis of fluorescence intensity from tumor-bearing mice (C) and isolated organs and tumors (D). The data are expressed as mean ± standard deviation (n = 3). Signal intensity differences between BSA-based nanosystems and free IR780 group were analyzed, *P < 0.05.