Long Feng Science Forum Seminar Series | Seminar #125

Dear All,

You are cordially invited to the 125th seminar of Long Feng Science Forum Seminar Series. It will be delivered by Prof. To NGAI (The Chinese University of Hong Kong) at 10:30 am on May 13 (Monday). This seminar will discuss "Pickering Emulsions: Microgels as Alternative Surfactants".

Seminar Information

Time & Date: 10:30 - 11:30 AM on May 13 (Monday), Beijing Time

Venue: Room 119, Library

Speaker: Prof. To NGAI, The Chinese University of Hong Kong

Host: Prof. Qi ZHANG, The Chinese University of Hong Kong, Shenzhen

Abstract: 

Microgels stand out as compelling alternatives to traditional emulsifiers in Pickering emulsions, owing to their unique deformability and responsiveness, distinguishing them from rigid particles and conventional surfactants. In this talk, I will provide an overview of recent advancements in microgel synthesis and the stabilization of Pickering emulsions using microgels. Additionally, I will discuss the underlying stabilization mechanisms of microgel-stabilized emulsions, elucidating the influencing factors such as microgel properties, environmental conditions, and interfacial structures that significantly impact emulsion stability. Given these recent achievements, I will highlight the promising applications associated with diverse Pickering emulsion systems stabilized by tailored microgels, including interfacial catalysis, functional foods, vaccine adjuvants, stimuli-responsive colloidosomes and droplet manipulation.

Biography

To NGAI now is 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 at CUHK in 1999. In 2003, he obtained the 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 the 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 has been appointed as an assistant professor in 2008, and promoted to associate professor in 2012. In 2017, he was promoted to Professor. His current research interests center around the colloids, surface chemistry, polymers and soft matter. Prof. Ngai have published over 200 papers with total citations of ~8400 and an h-index of 52 (Google Scholar). He received the Chemical Society of Japan (CSJ) Lectureship Award 2020, which celebrates young distinguished Asian researchers under the age of 45, and the Paul J. Flory Research Prize 2023 at the 29th Polychar World Forum on Advanced Materials in Nice, France.

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