Researchers from Trinity College Dublin and the SFI Research Centre for Advanced Materials and BioEngineering Research (AMBER) have developed a novel set of microscopic gas sensors using 3D printing technology. Designed to mimic the color-changing feathers of a peacock, the 3D printed sensors are capable of changing colors in the presence of certain solvent vapors. As such, they can be used to provide a very visual manner of detecting hazardous pollutants, all while being cost-effective to manufacture. The team believes its devices could have major implications for real-time gas monitoring in homes, cars, and workplaces, as well as in wearable devices for personal health applications. Professor Larisa Florea, a co-author of the study, explains, “We have created responsive, printed, microscopic optical structures which can be monitored in real-time, and used for the detection of gases. The ability to print such an optically responsive material has profound potential for their incorporation… read more