Nga-yu Hau

Chinese University of Hong Kong, University of Hong Kong

Papers

Total Citations

110

H-Index

About

Dr. Nga-yu Hau is a pioneering researcher in the field of electrochemically and optically responsive materials, with a focus on developing compact, wireless actuators for microrobotics and artificial muscles. Her major contributions center on nickel hydroxide-oxyhydroxide systems, which she has shown can be activated at sub-volt voltages—a breakthrough that enables low-power, precise mechanical motion without complex wiring. Her most cited work, "Light-stimulated actuators based on nickel hydroxide-oxyhydroxide" (2018, 88 citations), demonstrates how these materials can be triggered wirelessly by light, paving the way for self-contained, remotely controlled microdevices. This innovation is critical for advancing soft robotics, biomedical implants, and adaptive optics. Her earlier study on electrochemical actuation (2017, 22 citations) further established the material's versatility and efficiency. Dr. Hau’s research bridges fundamental electrochemistry and applied engineering, offering scalable solutions for next-generation microrobotic systems. Her work is widely recognized for its potential to replace bulky, tethered actuators with lightweight, energy-efficient alternatives, making her a leading voice in smart materials and microactuation.