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. 2021 Sep 25;13(19):3272. doi: 10.3390/polym13193272

Figure 2.

Figure 2

(a) Schematics for the fabrication processes of a silicon pyramid mold for the microstructure and skin-like polymer-hydrogel hybrid soft pressure sensor. (b) SEM images of pressure-sensitive pyramid microstructures. (c) Schematic for allowing the skin-like polymer-hydrogel hybrid soft pressure sensor to be air-stable using p-PVDF encapsulation films.