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. 2017 Jul 25;9(8):303. doi: 10.3390/polym9080303

Figure 7.

Figure 7

Wearable multiplexed sensors. (a) Photograph of a wearable flexible integrated sensing array (FISA) on a subject’s wrist, integrating the multiplexed sweat sensor array and the wireless flexible, printed circuit board (FPCB). (b) Schematic of the sensor array (including glucose, lactate, sodium, potassium and temperature sensors) for multiplexed perspiration analysis. GOx and LOx, glucose oxidase and lactate oxidase. (c) System-level interference studies of the sensor array. Reprinted with permission from Ref. [38]. Copyright 2014, Nature Publishing Group. (d) Optical image of the fabricated ion sensor on a cellular substrate. Ion sensor mounted on a rabbit heart model constructed from agarose gel (inset). (scale bar 2 mm) Reprinted with permission from Ref. [149]. Copyright 2014, John Wiley and Sons. (e) Photograph of the fabricated smart band. (f) Output AC signal with and without touching. (g) Normalized resistance change as a function of temperature. Reprinted with permission from Ref. [62]. Copyright 2014, John Wiley and Sons. (h) Photographs of the wearable bio-integrated system. Inset: Wearable 10 × 10 RRAM array on the hydrocolloid side of the patch (scale bars 5 mm). (i) Plot of percentage change in resistance versus strain for calculation of the gauge factor (j) Temperature distribution measurement of the heater on the skin patch using an infrared camera. Reprinted with permission from Ref. [99]. Copyright 2014, Nature Publishing Group.