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Stretchable and Recyclable Gelatin Ionogel Based Ionic Skin with Extensive Temperature Tolerant, Self-Healing, UV-Shielding, and Sensing Capabilities
作者:Hongnan Zhu, Yan Cheng, Shuaijie Li, Min Xu, Xuemeng Yang, Tianci Li, Yonggang Du,* Yanfang Liu and
關鍵字:ionogel ,Self-Healing, UV-Shielding
論文來源:期刊
具體來源:International Journal of Biological Macromolecules
發表時間:2023年

Fabricating sustainable ionic skin with multi-functional outstanding performances using

biocompatible natural polymer-based ionogel is highly desired but remains a

great challenge up to now. Herein, a green and recyclable ionogel has been

fabricated by in-situ cross-linking of gelatin with a green bio-based

multifunctional cross-linker of Triglycidyl Naringenin in ionic liquid.

Benefiting from the unique multifunctional chemical crosslinking networks along

with multiple reversible non-covalent interactions, the as-prepared ionogels

exhibit high stretchability (>1000%), excellent elasticity, fast

room-temperature self-healability (>98% healing efficiency at 6 min), and

good recyclability. These ionogels are also highly conductive (up to 30.7 mS/cm

at 150 oC), and exhibit extensive temperature tolerance (-23 to 252

°C) and outstanding UV-shielding ability. As a result, the as-prepared ionogel

can easily be applied as stretchable ionic skin for wearable sensors, which

exhibits high sensitivity, fast response time (102 ms), excellent temperature

tolerance, and stability over 5000 stretching-relaxing cycles. More

importantly, the gelatin-based sensor can be used in signal monitor system for

various human motion real-time detection. This sustainable and multifunctional

ionogel provides a new idea for easy and green preparation of advanced ionic

skins.


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