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Cell viability after 24 h of incubation with chitosan derivatives. Values are the mean ± standard deviation; measurements were performed as 3 individual experiments with 6 technical replicates. Calculated LC50(DEAE-CSI) = 80 µg/mL, LC50(DEAE-CSII) = 500 µg/mL. ** p < 0.01; ns p > 0.05.
