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(A) Schematic diagram of piggy-on shear. (B) Schematic diagram of the material. (C) Instantaneous adhesion load and displacement curves. (D) Instantaneous adhesion stress. (E) One hour adhesion load and displacement curves. (F) One hour adhesion stress. (G). Adhesion, bending adhesion and torsion adhesion diagrams of hydrogel porcine skin (**P < 0.01).
