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Viability of K562 cells after treatment with 50 μg/ml curcumin and curcumin-loaded nanogel in different times by flow cytometry. Treatment with curcumin (A) and curcumin-loaded nanogel (B) significantly decreased viability in K562 cells (*P < 0.05) compared with the control (untreated K568). Data are expressed as the mean ± SD.
