fig10

Figure 10. High sensitivity sensor array. (A) Gecko-inspired slant hierarchical microstructure-based sensor array with high sensitivity as 36,000 kpa^-1, schematic illustration of the iontronic pressure sensor with slant hierarchically structured electrode and ionic gel layer and SEM images of the structured electrode. Reproduced with permission^[37]. Copyright 2022 AAAS; (B) Skin bionic flexible electronic sensor with high sensitivity of 1,573.05 KPa^-1, the structure of the sensor and the SEM image of the microstructure. Reproduced with permission^[105]. Copyright 2023 Wiley-VCH; (C) Interlocking structure flexible pressure sensor array with high sensitivity as 504.5 kpa^-1, structure of the sensor and the SEM image of the filiform papillae-inspired array. Reproduced with permission^[36]. Copyright 2024 Wiley-VCH. PUPDU: polysiloxane, Cu (II)ions-coordinated dimethylglyoxime (DMG) and urethane groups; FPS_P: flexible pressure sensor; PIA: papillae-inspired array.