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. 2021 May 25;33(27):2008452. doi: 10.1002/adma.202008452

Figure 4.

Figure 4

a) Wearable and attachable health monitoring devices provide a convenient way for portable and decentralized healthcare. Reproduced with permission.[ 119 ] Copyright 2017, Wiley‐VCH. b) Construction of P(VDF‐TrFE) nanowires, and their application in detecting c) respiration and d) pulse. Reproduced with permission.[ 32 ] Copyright 2015, Royal Society of Chemistry. e) Schematic of fabrication process for self‐powered pressure sensor. f) Generated output voltage of the piezoelectric pressure sensor under different pressure conditions, and g) mechanical durability test of the piezoelectric sensor. Under repeated pushing/release conditions with a frequency of 2 Hz and pressure of 20 kPa. Insets show a partially magnified output voltage versus time. Reproduced with permission.[ 122 ] Copyright 2017, Wiley‐VCH. h) Schematic of PEDOT:PSS coated triboelectric sock integrated with PZT force sensors. i) Working principle of PZT chip and integration strategy in the sock. j) Mimetic walking pattern of Parkinson's disease patient under three conditions: normal, loss of stride, and freezing of gait (FOG). Reproduced with permission.[ 124 ] Copyright 2019, American Chemical Society.