Zhibin Guo is a Senior Application Scientist at Bettersize Instruments. Holding an M.S. in Pharmacy from Seoul National University, he specializes in particle analysis, nanomaterial characterization, and nanodrug synthesis. Since joining Bettersize in 2020, he has led application support and market development for the nanoparticle analyzer product lines. With a deep understanding of international pharmacopoeias and industry regulations, he has provided technical training and tailored solutions to global users. He possesses extensive practical experience insample preparation, test condition optimization, data analysis, and result diagnostics.