fig3

Figure 3. (A) Conceptual design of conductive PDA@HNT/rGO/PDMS aerogel composites with high durability for flexible strain sensors; the ΔR/R₀ performance under various cyclic strains for the PDA@HNT/rGO/PDMS composites with (B) ε_max = 30% 1:4, (C) ε_max = 50% 1:5, (D) ε_max = 50% PDA@1:4 and (E) ε_max = 30% PDA@1:4.