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Modified MTT assay (for 3D culture) following encapsulation of DPSCs in NapFFεKεK-OH hydrogels (0.5%, 1%, 1.5% and 2% w/v) at (A) day 1 and (B) day 14. Results are the average (±standard error) of three independent experiments (three replicates per experiment). All comparisons were made with the HPMC control. One-way ANOVA followed by Dunnett’s post hoc correction for multiple comparisons. ns: no significant difference (p > 0.05), *: p ≤ 0.05, ***: p ≤ 0.001.
