Donut‐Shaped Stretchable Kirigami: Enabling Electronics to Integrate with the Deformable Muscle

• DOI: 10.1002/adhm.201900939
• Publication Date: 2019-11-07T13:21:54Z
• Authors: Yusuke Morikawa; Shota Yamagiwa; Hirohito Sawahata; Rika Numano; Kowa Koida; Takeshi Kawano
• Keywords: SIGNAL (programming language); Stretchable electronics; Wearable Technology; Multielectrode array

Electronic devices used to record biological signals are important in neuroscience, brain-machine interfaces, and medical applications. Placing electronic below the skin surface recording muscle offers accurate robust electromyography (EMG) recordings. The device stretchability flexibility must be similar tissues achieve an intimate integration of with tissues. However, conventional elastomer-based EMG electrodes have a Young's modulus that is ≈20 times higher than muscle. In addition, these stretchable also issue displacement on tissue surface, thereby causing some challenges during signal general, kirigami design solve high devices. this study, donut-shaped bioprobes proposed reduce surface. fabricated tested expanding balloon they show no significant (microelectrode) displacement. As package, embedded dissolvable material-based scaffold for easy-to-use animal experiment. Finally, capability stability using confirmed vivo experiments without displacements.