Ultra-stretchable and biodegradable elastomers for soft, transient electronics

Won Bae Han, Gwan-Jin Ko, Kang-Gon Lee, Donghak Kim, Joong Hoon Lee, Seung Min Yang, Dong-Je Kim, Jeong-Woong Shin, Tae-Min Jang, Sungkeun Han, Honglei Zhou, Heeseok Kang, Jun Hyeon Lim, Kaveti Rajaram, Huanyu Cheng, Yong-Doo Park, Soo Hyun Kim and Suk-Won Hwang ()
Additional contact information
Won Bae Han: Korea University
Gwan-Jin Ko: Korea University
Kang-Gon Lee: Korea University
Donghak Kim: Korea Institute of Science and Technology (KIST)
Joong Hoon Lee: Korea University
Seung Min Yang: Korea University
Dong-Je Kim: Korea University
Jeong-Woong Shin: Korea University
Tae-Min Jang: Korea University
Sungkeun Han: Korea University
Honglei Zhou: The Pennsylvania State University
Heeseok Kang: Korea University
Jun Hyeon Lim: Korea University
Kaveti Rajaram: Korea University
Huanyu Cheng: The Pennsylvania State University
Yong-Doo Park: Korea University
Soo Hyun Kim: Korea Institute of Science and Technology (KIST)
Suk-Won Hwang: Korea University

Nature Communications, 2023, vol. 14, issue 1, 1-12

Abstract: Abstract As rubber-like elastomers have led to scientific breakthroughs in soft, stretchable characteristics-based wearable, implantable electronic devices or relevant research fields, developments of degradable elastomers with comparable mechanical properties could bring similar technological innovations in transient, bioresorbable electronics or expansion into unexplored areas. Here, we introduce ultra-stretchable, biodegradable elastomers capable of stretching up to ~1600% with outstanding properties in toughness, tear-tolerance, and storage stability, all of which are validated by comprehensive mechanical and biochemical studies. The facile formation of thin films enables the integration of almost any type of electronic device with tunable, suitable adhesive strengths. Conductive elastomers tolerant/sensitive to mechanical deformations highlight possibilities for versatile monitoring/sensing components, particularly the strain-tolerant composites retain high levels of conductivities even under tensile strains of ~550%. Demonstrations of soft electronic grippers and transient, suture-free cardiac jackets could be the cornerstone for sophisticated, multifunctional biodegradable electronics in the fields of soft robots and biomedical implants.

Date: 2023
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DOI: 10.1038/s41467-023-38040-4

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