Figure 4.

MXenes for pressure sensor. (A) Working micromechanism and SEM image of MXenes-material for piezoresistive sensor; reproduced from Ma et al. (2017). (B) Schematic illustration and application of MX/rGO aerogel sensor; reproduced from Ma Y. et al. (2018) with permission from American Chemical Society. (C) Schematic elasticity mechanisms and application of C-MX/CNC; reproduced from Zhuo et al. (2019) with permission from The Royal Society of Chemistry. (D) Schematic of interlocking structure of simulated human skin and the application of pulse measurement; reproduced from Wang et al. (2019) with permission from American Chemical Society.