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About

Sung Kwon Cho is a pioneer in bio-inspired micro-robotics, specializing in propulsion systems for miniature swimming robots. His research focuses on harnessing surface tension, oscillating bubbles, and acoustic resonance to create novel, contactless thrust mechanisms for medical and aquatic microrobots. Cho’s most influential work, the 2012 review “Bio-inspired micro/mini propulsion at air-water interface” (31 citations), established foundational principles for this emerging field. He achieved a breakthrough in 2013 by demonstrating the first microfabricated propelling device using oscillating bubbles (17 citations), a concept directly applicable to “medibots” that could navigate inside human bodies. His AC-electrowetting-actuated bubble propulsion system (2010, 15 citations) proved that oscillating bubbles could generate effective underwater thrust without moving parts. Cho also introduced a surface-tension-driven propulsion principle for water-floating robots (2009, 9 citations), eliminating mechanical paddling. His recent work on the Fin Thruster on Acoustic Resonator (2025) achieved remarkable swimming speeds up to 60 cm/s, showcasing enhanced durability and performance. With over 80 total citations, Cho’s innovative, biologically-inspired designs continue to push the boundaries of micro-swimming robot capabilities.