fig5

Figure 5. Conductivity of hydrogel with different contents of (A) PVA, (B) Gly, and (C) rGO; Sensitivity of hydrogel based on different contents of (D) PVA, (E) PDA, and (F) rGO; (G) Sensitivity of hydrogel samples with 0.25 wt% rGO content at different deformation rates; (H) Response time and recovery time of hydrogel as a sensor test. Gly: glycerol; PDA: polydopamine; PVA: polyvinyl alcohol; rGO: reduced graphene oxide.