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International Journal of Bioprinting 3D bioprinting techniques & hydrogels materials

Figure 2. Methods for strengthening the mechanical strength of hydrogel. (i) Schematic illustration of the preparation of G–G DN hydrogels, and SEM
photographs of GelMA and G–G hydrogel (the scale bar is 100 μm). (a) GelMA, (b) G–G (the red arrow indicates the second network). Both hydrogels
showed a porous three-dimensional network structure, but the pore sizes of pure GelMA hydrogel differed greatly and were relatively isolated. Reprinted with
permission from Ref . Copyright © 2022 Royal Society of Chemistry. (ii) Schematic representations of various chemical crosslinking strategies for inducing
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HA hydrogels. Reprinted with permission from Ref . Copyright © 2023 Elsevier.”
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Volume 10 Issue 6 (2024) 76 doi: 10.36922/ijb.4472