A flexible, thin-film microchannel electrode array device for selective subdiaphragmatic vagus nerve recording
Abstract The vagus nerve (VN) plays an important role in regulating physiological conditions in the gastrointestinal (GI) tract by communicating via the parasympathetic pathway to the enteric nervous system (ENS). However, the lack of knowledge in the neurophysiology of the VN and GI tract limits th...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Publishing Group
2024-01-01
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| Series: | Microsystems & Nanoengineering |
| Online Access: | https://doi.org/10.1038/s41378-023-00637-6 |
| _version_ | 1797276511799083008 |
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| author | Jongcheon Lim Peter A. Zoss Terry L. Powley Hyowon Lee Matthew P. Ward |
| author_facet | Jongcheon Lim Peter A. Zoss Terry L. Powley Hyowon Lee Matthew P. Ward |
| author_sort | Jongcheon Lim |
| collection | DOAJ |
| description | Abstract The vagus nerve (VN) plays an important role in regulating physiological conditions in the gastrointestinal (GI) tract by communicating via the parasympathetic pathway to the enteric nervous system (ENS). However, the lack of knowledge in the neurophysiology of the VN and GI tract limits the development of advanced treatments for autonomic dysfunctions related to the VN. To better understand the complicated underlying mechanisms of the VN-GI tract neurophysiology, it is necessary to use an advanced device enabled by microfabrication technologies. Among several candidates including intraneural probe array and extraneural cuff electrodes, microchannel electrode array devices can be used to interface with smaller numbers of nerve fibers by securing them in the separate channel structures. Previous microchannel electrode array devices to interface teased nerve structures are relatively bulky with thickness around 200 µm. The thick design can potentially harm the delicate tissue structures, including the nerve itself. In this paper, we present a flexible thin film based microchannel electrode array device (thickness: 11.5 µm) that can interface with one of the subdiaphragmatic nerve branches of the VN in a rat. We demonstrated recording evoked compound action potentials (ECAP) from a transected nerve ending that has multiple nerve fibers. Moreover, our analysis confirmed that the signals are from C-fibers that are critical in regulating autonomic neurophysiology in the GI tract. |
| first_indexed | 2024-03-07T15:29:13Z |
| format | Article |
| id | doaj.art-efaea62fb3904198a1531541dd0455f4 |
| institution | Directory Open Access Journal |
| issn | 2055-7434 |
| language | English |
| last_indexed | 2024-03-07T15:29:13Z |
| publishDate | 2024-01-01 |
| publisher | Nature Publishing Group |
| record_format | Article |
| series | Microsystems & Nanoengineering |
| spelling | doaj.art-efaea62fb3904198a1531541dd0455f42024-03-05T16:32:58ZengNature Publishing GroupMicrosystems & Nanoengineering2055-74342024-01-0110111410.1038/s41378-023-00637-6A flexible, thin-film microchannel electrode array device for selective subdiaphragmatic vagus nerve recordingJongcheon Lim0Peter A. Zoss1Terry L. Powley2Hyowon Lee3Matthew P. Ward4Weldon School of Biomedical Engineering, Purdue UniversityWeldon School of Biomedical Engineering, Purdue UniversityWeldon School of Biomedical Engineering, Purdue UniversityWeldon School of Biomedical Engineering, Purdue UniversityWeldon School of Biomedical Engineering, Purdue UniversityAbstract The vagus nerve (VN) plays an important role in regulating physiological conditions in the gastrointestinal (GI) tract by communicating via the parasympathetic pathway to the enteric nervous system (ENS). However, the lack of knowledge in the neurophysiology of the VN and GI tract limits the development of advanced treatments for autonomic dysfunctions related to the VN. To better understand the complicated underlying mechanisms of the VN-GI tract neurophysiology, it is necessary to use an advanced device enabled by microfabrication technologies. Among several candidates including intraneural probe array and extraneural cuff electrodes, microchannel electrode array devices can be used to interface with smaller numbers of nerve fibers by securing them in the separate channel structures. Previous microchannel electrode array devices to interface teased nerve structures are relatively bulky with thickness around 200 µm. The thick design can potentially harm the delicate tissue structures, including the nerve itself. In this paper, we present a flexible thin film based microchannel electrode array device (thickness: 11.5 µm) that can interface with one of the subdiaphragmatic nerve branches of the VN in a rat. We demonstrated recording evoked compound action potentials (ECAP) from a transected nerve ending that has multiple nerve fibers. Moreover, our analysis confirmed that the signals are from C-fibers that are critical in regulating autonomic neurophysiology in the GI tract.https://doi.org/10.1038/s41378-023-00637-6 |
| spellingShingle | Jongcheon Lim Peter A. Zoss Terry L. Powley Hyowon Lee Matthew P. Ward A flexible, thin-film microchannel electrode array device for selective subdiaphragmatic vagus nerve recording Microsystems & Nanoengineering |
| title | A flexible, thin-film microchannel electrode array device for selective subdiaphragmatic vagus nerve recording |
| title_full | A flexible, thin-film microchannel electrode array device for selective subdiaphragmatic vagus nerve recording |
| title_fullStr | A flexible, thin-film microchannel electrode array device for selective subdiaphragmatic vagus nerve recording |
| title_full_unstemmed | A flexible, thin-film microchannel electrode array device for selective subdiaphragmatic vagus nerve recording |
| title_short | A flexible, thin-film microchannel electrode array device for selective subdiaphragmatic vagus nerve recording |
| title_sort | flexible thin film microchannel electrode array device for selective subdiaphragmatic vagus nerve recording |
| url | https://doi.org/10.1038/s41378-023-00637-6 |
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