Figure 2.

E-textile sensors

(A–L) Force sensing: (A) highly stretchable and wearable piezoresistive microfiber liquid-metal based sensor (Yu et al., 2018), (B) dual-core capacitive microfiber sensor for e-textile application (Yu et al., 2019, p.), and (C) machine-knittable smart glove for pressure sensing (Zhao et al., 2020b). Moisture sensing: (D) yarn-type humidity sensor (Ma et al., 2019), and (E) smart Janus textile moisture/thermal management (Wang et al., 2020b). Temperature sensing: (F) silk composite e-textile temperature sensor (Wu et al., 2019). Light sensing: (G) WS₂ quantum dots on e-textile as a wearable UV photodetector (Abid et al., 2020). Biofluid sensing: (H) biosensing textile platform for chloride ion and pH sensing (Possanzini et al., 2020), and (I) integrated e-textile sensor patch for real-time and multiplex sweat analysis (He et al., 2019). Drug sensing: (J) glove-based sensor for fentanyl detection (Barfidokht et al., 2019). Chemical sensing: (K) enzyme skin-cancer biomarker sensor (Manjakkal et al., 2019). Gas sensing: (L) Colorimetric gas sensing threads for e-textile (Owyeung et al., 2019).