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Effects of different sizes and concentrations of QE-NCs on the mobility rate of A549 cells (n = 3). (a) Results of the wound healing assay with treated with 15 μmol/L QE-NCs. (b) Results of the wound healing assay with treated with 30 μmol/L QE-NCs. (c) Statistical analysis results. * p < 0.05, ** p < 0.01, compared with the blank control group.
