Oriented Crystallization Silk-Based Electronic Interface Towards Chronical Recording

We reported a class of electronic interfaces based on oriented crystallization silk towards chronical biopotential recording. Tunable molecular orientation crystallization of silk membrane was achieved with a pre-stretching treatment, which enabled the aqueous stability of silkbased electronic inter...

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Bibliographic Details
Published in2024 IEEE 37th International Conference on Micro Electro Mechanical Systems (MEMS) pp. 445 - 448
Main Authors Yang, Huiran, Zhu, Ziyi, Wang, Xueying, Zou, Dujuan, Jiang, Wanqi, Zhou, Zhitao, Sun, Liuyang, Liu, Keyin, Tao, Tiger H., Wei, Xiaoling
Format Conference Proceeding
LanguageEnglish
Published IEEE 21.01.2024
Subjects
Bio-interface
Chronical Recording
Crystallization
Epilepsy
Mice
Micromechanical devices
Neural Interface
Oriented Crystallization Silk
Proteins
Recording
Stability analysis
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Summary:We reported a class of electronic interfaces based on oriented crystallization silk towards chronical biopotential recording. Tunable molecular orientation crystallization of silk membrane was achieved with a pre-stretching treatment, which enabled the aqueous stability of silkbased electronic interfaces with superior biocompatibility and electronic shielding properties. Through the chemicalreagent-free process of the shadow mask and waterlithography, the orientation crystallization silk-based electronic interface has been demonstrated for long-term acquisition of electromyographic signal in living mice for more than 3 days, and acutely recording of ECoG signal of epilepsy models. Our approach provides opportunities for natural silk protein with long-term working stability in bioelectronics and bio-interfaces.
ISSN:2160-1968
DOI:10.1109/MEMS58180.2024.10439410