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. 2023 May 21;13(9):3064–3102. doi: 10.7150/thno.80579

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Deep tissue penetration of LW-CDs. (A) Light-tis two-photon-excited Z-stack images of pigskin tissue with an excitation wavelength of 750 nm (scale: 200 μm). Adapted with permission from ¹⁸⁸. Copyright 2020, American Chemical Society. (B) fluorescence imaging of liver tissue slices. The scale bar is 200.0 μm. Adapted with permission from ¹⁸⁹. Copyright 2021, Royal Society of Chemistry. (C) Time-dependent bioimaging of mice treated with CDs (20 μg/g) through the tail vein. Adapted with permission from ¹⁸⁷. Copyright 2019, American Chemical Society.