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Percentages of cell viability of HeLa (black bars), Caco-2/TC7 (gray bars), and HT29-MTX (hatched bars) cells after 24 h of contact with F127-HPMC (20/1 wt%, respectively) and F127-F68-HPMC (22.5/2.5/1 wt%, respectively) hydrogels, in comparison with HEC and SVF. The control was composed of 5 mM citrate buffer, pH 4.5. Data are the means of three determinations ± standard deviations.
