fig4

Figure 4. Comparison of stress-strain curves of a soft, self-healing, single-network ionogel (left) and a DN ionogel designed for harsh conditions (right). Note that the y-axis of the single-networked gel is in kPa while the DN gel is in MPa. (A) Comparison of the tensile-strain curves of pristine and reconfigured SIG75-89k-99+%. (Reproduced with permission from ref.^[112], Copyright 2025, Royal Society of Chemistry); (B) Tensile properties of the CS/PAA DN ionogels: tensile stress-tensile strain curves. (B) is reproduced as a cropped excerpt from ref.^[110], under the CC BY 4.0 license; the depicted content was not altered. DN: Double-network; CS: chitosan; PAA: polyacrylic acid.