Ultra-compliant peripheral nerve cuff electrode with hydrogel adhesion

Xiao Chuan Ong, Wei Chen Huang, Ik Soo Kwon, Chaitanya Gopinath, Haosheng Wu, Lee E. Fisher, Robert A. Gaunt, Christopher J. Bettinger, Gary K. Fedder

研究成果: 書貢獻/報告類型會議貢獻

3 引文 斯高帕斯(Scopus)

摘要

This paper reports a method of fabricating peripheral nerve cuff electrodes attached to a sticky hydrogel. The nerve cuff electrode is much more compliant compared to typical cuff electrodes made of polyimide or PDMS and contains adhesion-promoting functional groups that allow for good electrical contact with the nerve without the need for continuous application of pressure on the nerve. A transfer process is used to fabricate the device using poly(acrylic acid) as the sacrificial material that has tunable solubility in aqueous media. This avoids the need for harsh release chemicals that may affect the properties of the hydrogel. The transfer process also allows for electrode contacts that are flush with the surface of the probe and allow intimate contact of with the nerve, as compared with typical recessed electrode contacts. Patterned SU-8 provides a gradual change in Young's modulus from the stiff pad region to the compliant electrode contact region. The measured impedance of the 75 μm radius Pt electrode contacts is ∼100 kΩ. In vivo recordings have been demonstrated using fabricated devices in the dorsal root ganglia of a cat.
原文英語
主出版物標題2018 IEEE Micro Electro Mechanical Systems, MEMS 2018
發行者Institute of Electrical and Electronics Engineers Inc.
頁面376-379
頁數4
2018-January
ISBN(電子)9781538647820
DOIs
出版狀態已發佈 - 四月 24 2018
事件31st IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2018 - Belfast, 英国
持續時間: 一月 21 2018一月 25 2018

會議

會議31st IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2018
國家英国
城市Belfast
期間1/21/181/25/18

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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