fig3

Figure 3. Pressure sensors and sensing mechanisms. (A) Schematic of sensor preparation. Reproduced with permission^[39]. Copyright 2018, American Chemical Society; (B) Preparation of composite aerogels and their sensors; (C) Schematic of the sensing mechanism and internal microstructure of pressure sensor. Reproduced with permission^[32]. Copyright 2019, Wiley; (D) Preparation of sensors. Reproduced with permission^[41]. Copyright 2023, American Chemical Society. GO: Graphene oxide; rGO: reduced graphene oxide; PS: polystyrene; PE: polyethylene; PTE: polyethylene terephthalate; PI: polyimide.