Yoon, Jiyong Kim, Jaehyon Jung, Hyunjin Cho, Jeong-Ick Park, Jin-Hong Shin, Mikyung Kim, In Soo Kang, Joohoon Son, Donghee 2024-03-28T08:30:12Z 2024-03-28T08:30:12Z 2024-03-28 2024-03 1359-0286 https://pubs.kist.re.kr/handle/201004/149547 Soft wearable strain sensors with mechanically invisible interactions with skin tissue have enabled precise diagnosis and effective treatment of neurological movement disorders in a closed-loop manner that quantitatively measures motion-related strains without noise intervention and provides feedback information. Because of the immediate interpretation from motion-driven sign language to general conversation, such on-skin strain sensors have recently been considered promising candidates for facilitating communication either within deaf and hard-of-hearing communities or among people with disabilities. Despite advances in soft strain sensors, the lack of intrinsically stretchable neuromorphic modules that mimic biological synapses and efficiently perform neural computation and dynamics has resulted in inaccurate translation of sign language. In this study, we present an intrinsically stretchable organic electrochemical transistor (is-OECT) synapse integrated with crackbased strain sensors conformally mounted onto fingers to implement an interactive sensory-neuromorphic system (iSNS) capable of overcoming auditory impediments. The is-OECT synapse in the iSNS shows stable electrical performance (a large number of states (similar to 100 states) and a linear weight update) in the skin deformation range (approximately 30%). Based on pre-trained data gathered from on-finger strain-sensing information, the iSNS wirelessly translates sign language while maintaining high accuracy. English Pergamon Press Ltd. Intrinsically stretchable sensory-neuromorphic system for sign language translation Article 10.1016/j.cossms.2024.101142 1 Current Opinion in Solid State and Materials Science, v.29 Current Opinion in Solid State and Materials Science 29 N scie scopus 001182791500001 2-s2.0-85185263963 Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter Materials Science Physics Review STRAIN SENSOR Intrinsically stretchable Organic electrochemical transistor Neuromorphic Sign language translation