{"689739":{"#nid":"689739","#data":{"type":"event","title":"PhD Proposal by Youngjin Kwon","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003EYoungjin Kwon\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E(Advisor: Prof. Seung Soon Jang \u0026amp;\u0026nbsp;Prof. W. Hong Yeo)\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cem\u003Ewill propose a doctoral thesis entitled,\u003C\/em\u003E\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EDevelopment of\u0026nbsp;soft materials and\u0026nbsp;kirigami-based\u0026nbsp;mechanical decoupling for\u0026nbsp;motion-artifact\u0026nbsp;reduction in\u0026nbsp;wearable\u0026nbsp;electronics\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cem\u003EOn\u003C\/em\u003E\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ETuesday, April 28th at 10:00 am\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EMarcus Nanotechnology Research Center Room #2107\u0026nbsp;\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EAbstract\u003C\/p\u003E\u003Cp\u003EWearable bioelectronics enable continuous physiological monitoring but are fundamentally limited by motion artifacts arising from mechanical instability at the electrode\u2013skin interface. This issue is particularly severe in dynamic conditions and non-conformal wearable systems, where motion-induced noise overlaps with low-frequency bio-signals such as EMG and EOG, making conventional structural or computational approaches insufficient.\u003C\/p\u003E\u003Cp\u003EIn this work, we present a multi-scale strategy for motion artifact suppression that integrates structural design, geometrical optimization, and material-level damping. Kirigami-patterned structures are first introduced to achieve strain isolation by redistributing mechanical deformation away from the sensing interface, enabling stable EMG acquisition in freely moving ALS animal models. These structures are further optimized through systematic analysis of kirigami geometries, where hierarchical fractal patterns demonstrate improved strain isolation, reduced mechanical instability, and enhanced signal quality in dynamic applications.\u003C\/p\u003E\u003Cp\u003ETo address non-conformal wearable systems, we develop a material-based approach using polyborosiloxane (PBS), a viscoelastic polymer with dynamic boroxine networks. Molecular dynamics simulations and rheological experiments reveal that boroxine-rich networks provide frequency-stable energy dissipation, enabling effective suppression of motion artifacts in EOG systems.\u003C\/p\u003E\u003Cp\u003EThis work establishes a comprehensive framework that combines structural and material design strategies to enable robust bio-signal acquisition across diverse wearable platforms.\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECommittee\u003C\/strong\u003E\u003C\/p\u003E\u003Cul\u003E\u003Cli\u003EProf. Antonio Facchetti\u0026nbsp;\u2013 School of Materials Science and Engineering\u003C\/li\u003E\u003Cli\u003EProf. Shucong Li\u0026nbsp;\u2013 School of Materials Science and Engineering\u003C\/li\u003E\u003Cli\u003EProf. Peter Hesketh \u2013 School of Mechanical Engineering\u003C\/li\u003E\u003C\/ul\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003E\u003Cstrong\u003EDevelopment of\u0026nbsp;soft materials and\u0026nbsp;kirigami-based\u0026nbsp;mechanical decoupling for\u0026nbsp;motion-artifact\u0026nbsp;reduction in\u0026nbsp;wearable\u0026nbsp;electronics\u003C\/strong\u003E\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Development of soft materials and kirigami-based mechanical decoupling for motion-artifact reduction in wearable electronics"}],"uid":"27707","created_gmt":"2026-04-14 16:34:19","changed_gmt":"2026-04-14 16:34:52","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-04-28T10:00:00-04:00","event_time_end":"2026-04-28T12:00:00-04:00","event_time_end_last":"2026-04-28T12:00:00-04:00","gmt_time_start":"2026-04-28 14:00:00","gmt_time_end":"2026-04-28 16:00:00","gmt_time_end_last":"2026-04-28 16:00:00","rrule":null,"timezone":"America\/New_York"},"location":"Marcus Nanotechnology Research Center Room #2107 ","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"102851","name":"Phd proposal"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}}}