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About

Hongtai Ren is a pioneering researcher in the field of soft robotics and liquid metal-based actuators, whose work is redefining the capabilities of next-generation robotic systems. His primary research areas include liquid metal artificial muscles, light-controlled droplet manipulation, and tunable adhesion for soft robotics. Ren’s most notable contribution is the development of a liquid metal artificial muscle (2021, 147 citations), which overcomes critical limitations of conventional actuators—such as high driving voltages and water intolerance—by leveraging the unique properties of liquid metals. He also introduced a light-controlled method for manipulating liquid metal droplets (2021, 52 citations), enabling concurrent motion, splitting, and merging without complex systems, a key step toward future liquid robots. Additionally, his work on reversible underwater adhesion (2021, 38 citations) provides soft robotic feet with electrochemically tunable interfaces, allowing adaptive locomotion in challenging environments. Ren further advanced the field with variable stiffness wires based on magnetorheological liquid metals (2022, 22 citations), bridging the gap between miniaturized soft devices and large-scale mechanical systems. His innovative, multi-faceted approach is shaping the future of adaptive, intelligent soft robots.