fig7

Figure 7. Flexible sweat sensors for ions, drugs, and sweat volume monitoring. (A) Wristband for ions detection in sweat. Reproduced with permission^[61]. Copyright 2017, National Academy of Sciences Publishing Group; (B) Flexible device for multiple biomarkers sensing. Reproduced with permission^[107]. Copyright 2019, American Chemical Society; (C) Schematic diagram of sweat rate sensor using microfluidic channel, scale bar: 1 cm. Reproduced under the terms and conditions of the CC BY^[47]. Copyright 2020, Author(s), published by The American Association for the Advancement of Science; (D) A vertical fluidic-controlled wearable platform for simultaneous sweat rate detection. Reproduced with permission^[110]. Copyright 2022, Elsevier; (E) A tape-free, digital wearable band designed for monitoring exercise sweat rate. Reproduced with permission^[111]. Copyright 2023, Wiley-VCH; (F) Dual-aptamer-based sensor for drug detection. Reproduced with permission^[108]. Copyright 2022, American Chemical Society; (G) Caffeine detection by sweat sensing. Reproduced with permission^[18]. Copyright 2018, Wiley-VCH.