fig1
![A dual-mode wearable sensor with coupled ion and pressure sensing](https://image.oaes.cc/51e33d59-f81f-4955-8e49-94a123a68e90/ss3041.fig.1.jpg)
Figure 1. Schematic illustration of the dual-mode wearable sensor. (A) Schematic illustration showing the dual-mode sensor working as a wearable device; (B) Structure and working mechanism of the dual-mode sensor; (C) (i-iii) Schematic illustration of the dual-mode sensor detecting (i) the sweat Na+, (ii) periodic pressure, and (iii) the two physiological signals simultaneously.