Fig. 3

Assessment of cell cytotoxicity. The viability of encapsulated cells in photocross-linked MeGC-MMT nanocomposite hydrogels with various amount of MMT ranging from 0 to 4%. The hydrogels were cultured for 24 h. Error bars indicate standard deviation, *p < 0.05, **p < 0.01, ***p < 0.001, and NS, no significance (ANOVA followed by Tukey’s post hoc test)