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Carboxymethyl chitosan (CM-Ch) induced morphological changes in HepG2 cells. Cells were treated with the indicated concentrations of CM-Ch for 48 or 72 h (sy-CM-Ch). Representative images were shown from three independent experiments. Ca-CM-Ch, Chrysomya albiceps CM-Ch; Sa-CM-Ch, Sarcophaga aegyptiaca CM-Ch; sy-CM-Ch, commercial chitosan CM-Ch. 400×.
