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

Figure 16.

Figure 16

Electrical wearable microfluidics‐based SLMDs. Admittance: a) structure and mechanism of a thin, wireless, battery‐free sweat analysis system. Reproduced with permission.[ 191 ] Copyright 2018, John Wiley & Sons; b) schematic of a wearable SLMD with a spiral microchannel and a pair of electrodes inside. Reproduced with permission.[ 38 ] Copyright 2018, American Chemical Society; c) exploded illustration of the various components of a multimodal sweat sensing platform. Reproduced with permission.[ 69 ] Copyright 2019, The Royal Society of Chemistry; d) structure and mechanism of a wearable patch with capability in continuous collection and measurement of both type of sweat loss; e) sweat loss data measured at 8 different regions. Reproduced with permission.[ 67 ] Copyright 2021, Springer Nature. Capacitance: f) structural diagram of a low‐cost, wearable capacitive SLMD; g) the validation study and on‐body test compared with Macroduct. Reproduced with permission.[ 193 ] Copyright 2020, American Chemical Society; h) structural diagram of a wireless wearable SLMD with high sensitivity; i) fully assembled device for measuring sweat rate and its on‐body tests. Reproduced with permission.[ 194 ] Copyright 2020, The Royal Society of Chemistry.