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. 2023 Sep 15;27:86. doi: 10.1186/s40824-023-00422-6

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© The Author(s) 2023

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.

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Fig. 11 — A novel injectable self-healing hydrogel combining synergistic osteogenic and angiogenic effects of KP and QK peptides with GelMA to realize good defect fitting and bone regeneration. a Schematic illustration of the synthesis and experimental procedures of the KP/QK/GMO hydrogel scaffold. b Optical images of the GMO hydrogel and the self-healing process of the SN-GMO hydrogel. c In vitro osteogenic ability of BMSCs cultured on different GMO hydrogels confirmed by ALP staining after 7 days of induction. d Tube formation of HUVECs cultured on different GMO hydrogels. e In vivo bone regeneration of rat skull defects treated with the KP/QK/GMO hydrogel scaffold. Images reproduced from [44], © 2022 Elsevier Ltd