To Ngai is a Professor in the Department of Chemistry, Assistant Dean (Research) of the Faculty at the Chinese University of Hong Kong (CUHK), and Fellow of the Royal Society of Chemistry (FRSC). He received his B.Sc. in chemistry from CUHK in 1999. In 2003, he obtained a Ph.D. at the same university, where he worked on light scattering and polymer interaction in solution. He moved to BASF (Ludwigshafen, Germany) in 2003 as a postdoctoral fellow for two years, working on colloids and surface chemistry. After a short postdoctoral training in the Chemistry Department at the University of Minnesota in 2005, he joined the Chemistry Department at CUHK in 2006 as a research Assistant Professor. He was appointed as an assistant professor in 2008 and was promoted to Associate Professor in 2012. In 2017, he was promoted to Professor. His current research interests center around colloids, surface chemistry, polymers, and soft matter.