FIGURE 5.

Compressive mechanical tests. (A) Schematic representing sample preparation for mechanical testing. (B) Example of stress–strain curve of 0.50 to 0.10 A/DA-NH₂/A_PEGDA hydrogel before (blue dots) and after incubation with LOx (red diamonds). Typical linear fitting curve data within 15% strain (blue and red dotted lines) are displayed to show the linear (elastic) behavior of hydrogels during compression. (C) Hydrogel compressive moduli (E_s) measured after incubation with LOx, GlyO (positive control) or PBS (negative control). One-way ANOVA was performed considering each A/DA hydrogel family independently, with differences p < 0.05 considered statistically different. Letters with no sign indicate ANOVA results obtained analyzing the 0.25 A/DA hydrogel family, whereas letters with an asterisk and those with an apostrophe are referred to ANOVA results obtained for the 0.50 and the 0.75 A/DA families, respectively. Different letters indicate significant differences between samples (p < 0.05).