From July 24 to 26, 2023, Prof. Ma Jiani of the Photonic Nose and Molecular Materials Group participated in the Micro-Nano Structure Characterization Innovation Forum sponsored by the Chinese Society of Micro-Nano Technology and hosted by Lanzhou University of Technology in Lanzhou, and made an invited presentation titled Research on Excited State Behavior of Film Fluorescence Sensing Molecules at the parallel session on the development and application of micro-nano system characterization technology.