Stress Dissipation Encoded Silk Fibroin Electrode for the Athlete-Beneficial Silk Bioelectronics
- Authors
- WOOJIN CHOI; Deokjae Heo; TAEHO KIM; SUNGWONJUNG; MOONHYUN CHOI; JIWOONG HEO; JaeSung Kwon; BYEONG-SU KIM; Wonhwa Lee; Won-Gun Koh; Jeong Ho Cho; Sangmin Lee; JINKEE HONG
- Issue Date
- Mar-2022
- Publisher
- Wiley-vch Verlag GmbH &Co
- Keywords
- amino acid engineering; energy harvesting technology; intrinsic crosslink; mechanical property; silk fibroin
- Citation
- Advanced Science, v.9, no.8, pp 2105420-1 - 2105420-14
- Journal Title
- Advanced Science
- Volume
- 9
- Number
- 8
- Start Page
- 2105420-1
- End Page
- 2105420-14
- URI
- https://yscholarhub.yonsei.ac.kr/handle/2021.sw.yonsei/6291
- DOI
- 10.1002/advs.202105420
- ISSN
- 2198-3844
- Abstract
- The kinetic body motions have guided the core-shell fabrics of wearable bioelectronics to be elastoplastic. However, the polymeric electrodes follow the trade-off relationship between toughness and stretchability. To this end, the stress dissipation encoded silk fibroin electrode is proposed as the core electrode of wearable bioelectronics. Significantly, the high degree of intrinsic stress dissipation is realized via an amino acid crosslink. The canonical phenolic amino acid (i.e., tyrosine) of silk fibroin is engineered to bridge the secondary structures. A sufficient crosslink network is constructed when tyrosine is exposed near the amorphous strand. The stress dissipative tyrosine crosslink affords 12.5-fold increments of toughness (4.72 to 58.9 MJ m?3) and implements the elastoplastic silk fibroin. The harmony of elastoplastic core electrodes with shell fabrics enables the wearable bioelectronics to employ mechanical performance (elastoplasticity of 750 MJ m?3) and stable electrical response. The proposed wearable is capable of assisting the effective workouts via triboelectricity. In principle, active mobility with suggested wearables potentially relieves muscular fatigues and severe injuries during daily fitness.
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Collections - College of Science > 이과대학 화학 > 1. Journal Articles
- 치과대학 > 치과대학 치과생체재료공학교실 > 1. Journal Articles
- College of Engineering > Chemical Engineering > 1. Journal Articles
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