FIGURE 3.

(A) (i) Scheme showing the crosslinking mechanism of EKGel; (ii) The SEM images of the EKGel. (iii) The organoid formation in the EKGel. Reproduced under terms of the CC‐BY license. ⁴⁴ Copyright 2022, The Authors, published by Springer Nature. (B) (i) The schematic diagram of the fabrication of the HA‐Cat‐NCSN hydrogel. (ii) Scheme showing the adhesion of hydrogel on the glass slide. Reproduced with permission. ⁵¹ Copyright 2020, The Authors, published by the American Association for the Advancement of Science. (C) (i) Photos showing the adhesion of the patch on porcine myocardium tissues under stretching, distorting, bending, or immersing underwater. (ii) Self‐healing of the patch. Reproduced with permission. ⁵² Copyright 2020, The Authors, published by the American Association for the Advancement of Science.