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Cellular association/uptake (right axis, continuous line) and related toxicity (left axis, dotted line) of PBCA (A), PEBCA (B) and POCA (C) NPs in HeLa dynK44A cells with (blue lines) and without (red lines) tetracyclin (1 μg/mL) after 24 h incubation. Incubation without tetracycline inhibits dynamin-dependent endocytosis. Association/uptake is averaged from two NPs of the same material while viability is averaged from three experiments with the standard deviation shown.
