fig2

Figure 2. Mechanical properties of hydrogels in bioelectricity. (A-C) GHECs exhibit stretchable, self-healing, and degradable properties at room temperature^[77]; (D and E) Tough bonding of adhesive hydrogels^[78]; (F-H) Viscoelastic hydrogels with active noise reduction^[79]. GHECs: Glycerol-doped hydroxyethyl cellulose gel-based material.