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. 2024 Oct 16;19:10435–10453. doi: 10.2147/IJN.S475742

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© 2024 Chen et al.

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Endocytosis of fluorescein isothiocyanate (FITC)-labeled chitosan nanoparticles by MOC2 cells. (a) Fluorescence image of FITC-conjugated chitosan nanoparticles in green. (b) Bright-field image of MOC2 cells. (c) Fluorescence image of MOC2 cells in blue. (d) Merged image of (a–c).