기계공학부 구성원들의 많은 관심과 참여 부탁드립니다.

▣ 주   제: Liquid-Liquid Encapsulation: A game-changing Technology

▣ 연   사: Prof. Sushanta Mitra

▣ 소   속: University of Waterloo, Canada

▣ 일   시: 2025. 9. 2.(화) 13:00

▣ 장   소: 제4공학관 D509호

▣ 초   록

The talk will present some of my group's fascinating research on encapsulation. We demonstrate the development of a robust liquid-liquid encapsulation framework where a thin layer of another shell-forming liquid stably wraps a liquid core analyte. Two approaches to achieve encapsulation are discussed - impact-driven and magnet-assisted. The underlying mechanism leading to encapsulation are explored in detail for both approaches. We show that successful encapsulation by either approach provides efficient protection to the core analyte even in aggressive surroundings. Multiple practical use cases are reported, including ultrafast encapsulation, shell-hardening, and subsequent extraction/handling of the wrapped cargo, the formation of encapsulated compound droplets with similar/dissimilar core compositions. Further, impact-driven encapsulation with a magnetoresponsive (ferrofluid) shell layer is also illustrated, which allows magnet-assisted efficient, non-contact manipulation of the encapsulated cargo, including translation, controlled coalescence, and the release of the inner core.