Figure 1 : Fabric gas sensor with reduced graphene oxide applied.

From: Ultrasensitive and Highly Selective Graphene-Based Single Yarn for Use in Wearable Gas Sensor

Figure 1

(a) Schematic illustration of RGOY gas sensor prepared from microfiber bundles (light grey cylinders) wrapped with RGO (dark grey hexagon patches). The red, blue, black, and white spheres indicate oxygen, nitrogen, carbon, and hydrogen atoms, respectively. (b) Photograph of RGOCY and RGOPY wound on a plastic bobbin. (c) RGOCY gas sensor system integrated into a fabric. (d) Demonstration of wearable gas sensing and alarm system. All parts of this figure were drawn and photographed by the authors.