fig5

Figure 5. Bending strain sensitivity of POC-PEG/AgNW CPEs. (A) Schematic illustration of bending strain sensing mechanism of POC-PEG/AgNW CPEs. (B) Resistance response of POC-PEG/AgNW CPEs to increasing bending strain from 0-8.4%. (C) Linear fitting of ΔR/R₀-strain curve. (D) Resistance response of POC-PEG/AgNW CPEs to cyclic bending strain. (E) Response time of POC-PEG/AgNW CPEs to transient bending strain. (F) Strain sensitivity of POC-PEG/AgNW CPEs containing AgNW layers with different thicknesses.