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Cell viability (%) for each compound in different concentrations from 1 μg/mL to 250 μg/mL at (a) 24 h, (b) 48 h, and (c) 72 h. For each concentration, means with different roman numerals were significantly different (p < 0.05) from each other. CS: chitosan; Cur-CS: curcumin-encapsulated chitosan.
