We have devekioed novel wearable sensor that monitors sweat electrolytes without requiring direct skin contact. The key innovation lies in a bioinspired micro-textured ion-selective membrane (ISM) built on carbon nanotube paper, which mimics the microstructure of rose petals to improve sweat adhesion, wettability, and self-cleaning performance.
Traditional on‐skin sensors often struggle with motion artefacts, weak fluid contact, and skin irritation due to adhesives. The new design introduces a 2 mm air gap between the skin and the sensor and uses microchannels to route sweat to the textured membrane. This achieves accurate ion sensing (e.g., sodium) during movement, while improving comfort and reusability.
In short: by borrowing from nature’s designs (rose petal micro-textures), this research paves the way for more comfortable, durable, and accurate wearable health monitors — especially useful for athletes, health-tracking, and potentially rehabilitation devices.