#3-D touchless interactive display detects finger humidity to change color
“#3-D touchless interactive display detects finger humidity to change color” Fabrication of interpenetrated hydrogel network BCP PC. (A) Schematic illustration of the fabrication processes of interpenetrated hydrogel network block copolymer photonic crystal (IHN BCP PC). (B) Surface morphology of a PS-b-QP2VP film swollen by ethanol, followed by being dried. Credit: Science Advances, doi: 10.1126/sciadv.abb5769 A…