Lee, Sungjun Yoon, Jiyong Lee, Daewoong Seong, Duhwan Lee, Sangkyu Jang, Minsu Choi, Junho Yu, Ki Jun Kim, Jinseok Lee, Sangyoup Son, Donghee 2024-01-19T18:04:38Z 2024-01-19T18:04:38Z 2021-09-04 2020-02 2079-9292 https://pubs.kist.re.kr/handle/201004/119024 Massive efforts to build walking aid platforms for the disabled have been made in line with the needs of the aging society. One of the core technologies that make up these platforms is a realization of the skin-like electronic patch, which is capable of sensing electromyogram (EMG) and delivering feedback information to the soft, lightweight, and wearable exosuits, while maintaining high signal-to-noise ratio reliably in the long term. The main limitations of the conventional EMG sensing platforms include the need to apply foam tape or conductive gel on the surface of the device for adhesion and signal acquisition, and also the bulky size and weight of conventional measuring instruments for EMG, limiting practical use in daily life. Herein, we developed an epidermal EMG electrode integrated with a wireless measuring system. Such the stretchable platform was realized by transfer-printing of the as-prepared EMG electrodes on a SiO2 wafer to a polydimethylsiloxane (PDMS) elastomer substrate. The epidermal EMG patch has skin-like properties owing to its unique mechanical characteristics: i) location on a neutral mechanical plane that enables high flexibility, ii) wavy design that allows for high stretchability. We demonstrated wireless EMG monitoring using our skin-attachable and stretchable EMG patch sensor integrated with the miniaturized wireless system modules. English MDPI ELECTRONICS ASSISTANCE FILMS Wireless Epidermal Electromyogram Sensing System Article 10.3390/electronics9020269 1 ELECTRONICS, v.9, no.2 ELECTRONICS 9 2 scie scopus 000518412200069 2-s2.0-85079153582 Computer Science, Information Systems Engineering, Electrical & Electronic Physics, Applied Computer Science Engineering Physics Article ELECTRONICS ASSISTANCE FILMS Bio-medical engineering Gait disturbance walking aids Exoskeleton suit Stretchable EMG sensors Skin-attachable EMG sensor Wireless health monitoring