fig2

Figure 2. (A) ΔR/R₀vs. applied strain to reveal gauge factor value for samples of PDA@HNT/rGO/PDMS composites; (B) relationship between the sensing range limit and strain for PDA@HNT/rGO/PDMS composites; (C) comparison of gauge factor, range of linearity and sensing range of PDA@HNT/rGO/PDMS composites; (D) Sensing performance of PDA@HNT/rGO/PDMS composites with various ratios of PDA@HNT to rGO. (Samples are analyzed at composites with concentrations of 2.5 and 5.0 mg/mL GO, respectively, where the ratio of PDA@HNT to GO is 1:4).