作者
Zhikang Li, Shiming Zhang, Yihang Chen, Haonan Ling, Libo Zhao, Guoxi Luo, Xiaochen Wang, Martin C Hartel, Hao Liu, Yumeng Xue, Reihaneh Haghniaz, KangJu Lee, Wujin Sun, HanJun Kim, Junmin Lee, Yichao Zhao, Yepin Zhao, Sam Emaminejad, Samad Ahadian, Nureddin Ashammakhi, Mehmet R Dokmeci, Zhuangde Jiang, Ali Khademhosseini
发表日期
2020/12
期刊
Advanced functional materials
卷号
30
期号
49
页码范围
2003601
简介
Gelatin methacryloyl (GelMA) is a widely used hydrogel with skin‐derived gelatin acting as the main constituent. However, GelMA has not been used in the development of wearable biosensors, which are emerging devices that enable personalized healthcare monitoring. This work highlights the potential of GelMA for wearable biosensing applications by demonstrating a fully solution‐processable and transparent capacitive tactile sensor with microstructured GelMA as the core dielectric layer. A robust chemical bonding and a reliable encapsulation approach are introduced to overcome detachment and water‐evaporation issues in hydrogel biosensors. The resultant GelMA tactile sensor shows a high‐pressure sensitivity of 0.19 kPa−1 and one order of magnitude lower limit of detection (0.1 Pa) compared to previous hydrogel pressure sensors owing to its excellent mechanical and electrical properties (dielectric …
引用总数
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Z Li, S Zhang, Y Chen, H Ling, L Zhao, G Luo, X Wang… - Advanced functional materials, 2020