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Mechanical properties and self‐healing mechanism of prepared hydrogels. A–D) Rheological performance: strain sweep, frequency sweep, dynamic step–strain, and viscosity measurements of CG and CPA2 hydrogels, respectively. E) The injectable CPA2 hydrogel. F) Photographs of the self‐healing process of CG/PDA@Ag hydrogel. G) Schematic diagram of the possible self‐healing mechanism of CG/PDA@Ag hydrogel.
