Figure 4.

Integrated platforms with multiple sensors. a) Laminated nano‐cellulose tactile sensor. Reproduced with permission.^{[ 15 ]} Copyright 2017, The Royal Society Chemistry. i) Structural model with temperature (ii) and pressure (iii) sensing mechanisms. Responses from iv) temperature and v) pressure sensors to temperature and pressure. b) Silk‐derived E‐skin combined with pressure and temperature sensors. Reproduced with permission.^{[ 42 ]} Copyright 2017, American Chemical Society. i) Schematic showing an integrated temperature and pressure sensors (fabricated by intact continuous nanofiber structure and fractured nanofiber, respectively). ii) Relative resistance changes of the strain sensor versus strain. iii) Relative resistance changes of the temperature sensor versus pressure (not strain). Relative resistance changes of the iv) temperature and v) strain sensors versus temperature. c) Multifunctional E‐skin based on thermosensitive platinum. Reproduced with permission.^{[ 43 ]} Copyright 2017, Wiley‐VCH. i) Device structure of the E‐skin with the element descriptions. ii) Temperature response of the temperature sensor under different pressure. iii) Pressure response of the pressure sensor under different temperatures.