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. Author manuscript; available in PMC: 2022 Jan 18.
Published in final edited form as: Adv Mater. 2021 Mar 24;33(17):e2008553. doi: 10.1002/adma.202008553

Figure 2: Tough Hydrogels with Degradable Covalent Network Maintain High Toughness and Adhesion.

Figure 2:

(a-d) The effect of different covalent crosslinkers on maximum stretch, stress, and fracture toughness. The covalent crosslinkers tested with associated concentrations (crosslinker/acrylamide wt.%) were: MBAA (0.06), PEGDA (0.06), PoloxDA (0.12), OxAlgMA (0.12), GelMA (0.03), and HAMA (0.06). *P<0.01 between time points. Mean values are shown and error bars represent ± s.d. (n=3-8 samples/group), as analyzed by a one-way ANOVA with post hoc t-tests with Bonferroni correction. (e) The effect of covalent crosslinker on adhesion energy. *P<0.01 between groups. Mean values are shown and error bars represent ± s.d. (n=3-4 samples/group), as analyzed by a one-way ANOVA with post hoc t-tests with Bonferroni correction. (f) The effect of crosslinker type on TA dry weight over time was evaluated with exposure to accelerated aging buffer. *P<0.01 between time points. Mean values are shown and error bars represent ± s.d. (n=3-4 samples/group), as analyzed by a one-way ANOVA with post hoc t-tests with Bonferroni correction.