Dr. Takuya Okazaki: Researcher, Laboratory of Environmental Analytical Chemistry, Department of Environmental Biology and Chemistry, Faculty of Science, Major of Earth, Life and Environmental Science, Graduate School of Science and Engineering, University of Toyama. Dr. Okazaki’s research papers include “U-shaped plastic optical fiber sensor for scale deposition in hot spring water, Anal. Sci., 2022, 38, 1549”, “Lossy mode resonance fiber-optic sensor based on ZnO particles fabricated by chemical bath deposition, Anal. Sci., 2022, 39, 203”, “Electrochemical Lossy Mode Resonance‐based Fiber Optic Sensing for Electroactive Species, Electroanal., 2022, 35, e202200089”, and “Evanescent-Wave Fiber Optic Sensing of the Anionic Dye Uranine Based on Ion Association Extraction, Sensors, 2020, 20, 2796”. Dr. Okazaki is a member of Japan Society of Analytical Chemistry, Chemical Society of Japan, and the Ceramic Society of Japan.