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. 2021 Oct 28;9(1):2103257. doi: 10.1002/advs.202103257

Figure 10.

Figure 10

Typical wearable hygrometer‐based SLMDs using the closed chamber method. a) A watch‐type SLMD on human wrist. b) Operating mechanism of the watch‐type SLMD. Reproduced with permission.[ 151 ] Copyright 2018, Springer Nature. c) Structure and on‐body test of a microporous PDMS sweat rate sensor. Reproduced with permission.[ 157 ] Copyright 2019, IEEE. d) A NFC‐enabled SLMD based on cellulose sheet. Reproduced with permission.[ 158 ] Copyright 2013, IEEE. e) Structural diagram of a bifunctional wearable sensor for EEG and sweat rate. f) The simultaneous measurement of EEG signal and sweat rate. Reproduced with permission.[ 160 ] Copyright 2020, IEEE.