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. 2021 Oct 26;12:327–339. doi: 10.1016/j.bioactmat.2021.10.029

Fig. 6.

Fig. 6

Photo crosslinked hydrogels. A) Absorption wavelength distribution of different photosensitizers. Used with permission [60]. Copyright 2020, Wiley-VCH GmbH. B) Structural formula of some representative photosensitizers, including I2959, LAP, Eosin Y, and Riboflavin. C) The chemical molecular structure of the methacrylated OGP polypeptide and gelatin (GelMA), and the structure of GelMA-c-OGP with ultraviolet (UV) light. D) Porous structure topography diagram of GelMA and GelMA-c-OGP via SEM. E) Gel formation process of GelMA-c-OGP hydrogels. F) Degradation percentage (%) and stress properties (KPa) of GelMA and GelMA-c-OGP hydrogels. G) Photograph of GelMA-c-OGP solution and GelMA-c-OGP hydrogel formation after UV light and the pipeline of GelMA-c-OGP applied for bone regeneration. Used with permission [62]. Copyright 2020, Wiley-VCH GmbH.