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DTSTART;TZID=Asia/Hong_Kong:20250924T103000
DTEND;TZID=Asia/Hong_Kong:20250924T110000
DTSTAMP:20260511T191723
CREATED:20250922T032607Z
LAST-MODIFIED:20250922T032607Z
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SUMMARY:RPG Seminar – Laser-Assisted Interface-Welded Electrodes for Epidermal Electrophysiology Sensing
DESCRIPTION:Zoom Link: https://hku.zoom.us/j/8957840635?pwd=jB4IyfmX0hTbEjn9W0LVEs31VhDw0e.1&omn=97635631185 \nAbstract\nElectrophysiological signals provide essential insights into health\, emotional responses\, and physical performance\, making their reliable collection critical for healthcare and research. However\, motion artifacts\, which cause signal distortion and compromise quality\, remain a significant challenge. In this study\, we introduce a laser-assisted interface welding (LIW) technique to avoid interface failure within electrodes\, thereby reducing motion artifacts. The developed electrode array patch consists of an adhesive layer for strong skin adhesion and a conductive layer for signal collection. Electrodes enhanced with the LIW technique exhibit exceptional toughness (114.29 J m-2) at the internal interface and improved electrical conductivity (467.8 S m-1). Compared with commercial electrodes\, the developed patch demonstrates superior conformability to human skin\, achieving an outstanding signal-to-noise ratio (>25 dB) and enabling high-quality electromyography and electrocardiography signal acquisition during motion. This work highlights the potential of the LIW technique to overcome motion artifacts\, offering a promising pathway for the reliable collection of electrophysiological signals in practical applications. \nSpeaker\nSpeaker: Mr. KANG Zhecheng\nDepartment of Electrical and Electronic Engineering\nThe University of Hong Kong \nBiography of the Speaker\nDing Ye received his BEng in Polymer Materials and Engineering from Northwestern Polytechnical University in 2019. He is now pursuing a MPhil degree with Leo Tianshuo Zhao in the Department of Electrical and Electronic Engineering. His research focuses on polymer hydrogel and flexible sensors. \nOrganiser\nProf. Leo Tianshuo Zhao\nDepartment of Electrical and Electronic Engineering\, The University of Hong Kong \nAll are welcome.
URL:https://ece.hku.hk/events/20250924-1/
LOCATION:Online via Zoom
CATEGORIES:Seminar
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