Prof. Dr. Byung Seok Moon is a Professor in the Department of Nuclear Medicine at Ewha Womans University Seoul Hospital, Korea. He received his Ph.D. in medicinal and radiopharmaceutical chemistry at Inha University, Korea, under the supervision of Prof. Dae Yoon Chi and Hun Yeong Koh. From 2009 to 2019, he served as a post-doctoral researcher, staff scientist, and QC and QA supervisor for the manufacturing of radiopharmaceuticals at Seoul National University Bundang Hospital, Korea. He was appointed an Associate Professor in 2019 at Ewha Womans University Seoul Hospital and was later promoted to Professor in 2024. His research focuses on the development of innovative radiolabeling methods for radioisotopes such as 18F, 11C, 123/124/125/131I, 18F2 gas, 89Zr, and 68Ga, and their application in the synthesis of PET and SPECT radiotracers for oncology, neurology, and cardiology, as well as the translation of these radiotracers into clinical research. He is also deeply interested in the PK/PD evaluation of new drug candidates using nuclear medicine and molecular imaging technology. He is an active member of the Society of Nuclear Medicine and Molecular Imaging, the China–Japan–Korea Association of Radiopharmaceutical Sciences, the Society of Radiopharmaceutical Sciences, the Korean Society of Nuclear Medicine, the Korean Society of Radiopharmaceuticals and Molecular Probes, etc., and has been honored with several prestigious research awards for his contributions to the field.