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. 2022 Feb 1;17:49–70. doi: 10.1016/j.bioactmat.2022.01.038

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© 2022 The Authors

This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

PMC Copyright notice

Fig. 8 — (A) The mechanisms of the considerably strong toughness of the TA-based hydrogel system, and (B) the X-ray micro-computed tomography images in the rat femoral defect model. Reproduced with permission from Ref. [200]. Copyright 2019, Wiley-VCH. (C) The mechanism of PDA-containing implant-coating hydrogel promoting bone formation. Reproduced with permission from Ref. [163] Copyright 2019, American Chemical Society. (D) The EGCG and hyaluronic acid-containing hydrogel with inflammation-modulatory and chondrogenic regenerative functions. Reproduced with permission from Ref. [199]. Copyright 2020, Elsevier.