fig5

Figure 5. Strain sensing performances of the PCM organohydrogel. (A) Sensitivity values of the PC and PCM organohydrogels; (B) ΔR/R₀ of the PCM organohydrogel under continuous stretching-releasing cycles at the strain of 100% with different tensile rates; (C) Measurement of response/recovery time of the PCM organohydrogel under 1% strain at a tensile rate of 500 mm·min^-1; Real-time sensing response of the PCM organohydrogel under (D) small strains, (E) medium strains, and (F) large strains; (G) Long-term stability of the PCM organohydrogel strain sensor over 2,000 stretching-releasing cycles at the strain of 50%; (H) Comparison of the PCM organohydrogel strain sensor with other reported hydrogel-based sensors in terms of strain, maximum strain sensitivity, adhesion strength, self-HE, temperature range, and maximum TCR value. PCM: PAM/CS/MXene; PC: PAM/CS; HE: healing efficiency; TCR: temperature coefficient of resistance.