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(A) Photographs of S1Q4G4, S2Q4G4, S3Q4G4, and S4Q4G4 hydrogels at room temperature and S1Q4G4 at 5°C and 15°C. (B) Temperature dependency of storage modulus (G′) and loss modulus (G″) of S1Q4G4, S2Q4G4, S3Q4G4, and S4Q4G4 hydrogels. (C,D) Tensile stress–strain curves (C) and the modulus at a strain of 20% and fracture energy (D) of S4Q4, S4G4, S1Q4G4, S2Q4G4, S3Q4G4, and S4Q4G4 hydrogels.
