Microscopic 3D-Printed Sensors Respond to Air Chemistry with Visible Changes

Using direct laser writing (DLW) and optically responsive polymers, researchers at Trinity College Dublin and the Advanced Materials and Bioengineering Research Centre (AMBER) built miniature photonic sensors that change color in response to solvent vapors in the air. The Dublin team collaborated with Radislav Potyrailo, a principal scientist at GE Research in Niskayuna, N.Y.