Chang Group attends the 2018 International Mechanical Engineering Congress & Exposition (IMECE) in Pittsburgh. Fred presented a talk on dynamic coloration of magnetic nanostructures, I-Te presented a talk on the repeatability and uniformity of roll-to-roll 3D nanolithography, and Andy presented a talk on enhancing optical transmission of multilayer composite material with nanostructure interfaces. Dr Chang organized and chaired a session on Nanomanufacturing.