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. Author manuscript; available in PMC: 2020 May 1.
Published in final edited form as: Mater Horiz. 2019 Jan 9;6(4):733–742. doi: 10.1039/C8MH01208C

Figure 3.

Figure 3.

Mechanical properties characterization, and schematic mechanism illustrations of HGGelMAs under loading. (A-B) Stress-strain curves of the hydrogels subject to compression (A) and tensile testing (B). (C) Digital images of GelMA hydrogels that suffered the pressure of a 500 g weight. (D) Compression modulus of the hydrogels. (E) Cyclic tensile test curves of HGGelMAs. The inset showed the overall shape of the samples after undergoing the test. (F) Digital images of HG9GelMA hydrogel that supported the pressure of a 1 kg weight. (G-I) Schematic of the possible mechanism involved in the robust and fatigue-resistant mechanical behavior of HGGelMAs.