Seon-Jin Choi received a B.S. in Materials Science and Engineering from Hanyang University, Seoul, Korea, in 2010, and an M.S. in Electrical Engineering from the Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea, in 2012. He received a Ph.D. in Materials Science and Engineering from KAIST in 2016. He was a postdoctoral associate in the Department of Chemistry at MIT from 2017–2019. He is currently an assistant professor in the division of materials science and engineering at Hanyang University. His research interests include the design, processing, and characterization of chemical sensors using multi-dimensional nanostructures for the application in environmental and health monitoring.