Foldable 3D opto-electro array for optogenetic neuromodulation and physiology recording

Abstract This paper presents a thin-film, three-dimensional (3D) opto-electro array featuring four addressable microscale light-emitting diodes (LEDs) for surface cortex illumination and nine penetrating electrodes for simultaneous recording of light-evoked neural activities. Inspired by the origami...

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Main Authors: Yan Gong, Xiang Liu, Zebin Jiang, Arthur Weber, Wen Li
Format: Article
Language:English
Published: Nature Publishing Group 2025-05-01
Series:Microsystems & Nanoengineering
Online Access:https://doi.org/10.1038/s41378-024-00842-x
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author Yan Gong
Xiang Liu
Zebin Jiang
Arthur Weber
Wen Li
author_facet Yan Gong
Xiang Liu
Zebin Jiang
Arthur Weber
Wen Li
author_sort Yan Gong
collection DOAJ
description Abstract This paper presents a thin-film, three-dimensional (3D) opto-electro array featuring four addressable microscale light-emitting diodes (LEDs) for surface cortex illumination and nine penetrating electrodes for simultaneous recording of light-evoked neural activities. Inspired by the origami concept, we have developed a meticulously designed “bridge+trench” structure that facilitates the transformation of the array from 2D to 3D while preventing damage to the thin film metal. Prior to device transformation, the shape and dimensions of the 2D array can be customized, enhancing its versatility for various applications. In addition, the arched base offers strong mechanical support to facilitate the direct insertion of the probe into tissue without any mechanical reinforcement. The array was encapsulated using polyimide and epoxy to ensure mechanical flexibility and biocompatibility of the device. The efficacy of the device was evaluated through comprehensive in vitro and in vivo characterization.
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institution Kabale University
issn 2055-7434
language English
publishDate 2025-05-01
publisher Nature Publishing Group
record_format Article
series Microsystems & Nanoengineering
spelling doaj-art-c99bfae2c55c4f0f9a03be96bb3e4a302025-08-20T03:53:22ZengNature Publishing GroupMicrosystems & Nanoengineering2055-74342025-05-0111111410.1038/s41378-024-00842-xFoldable 3D opto-electro array for optogenetic neuromodulation and physiology recordingYan Gong0Xiang Liu1Zebin Jiang2Arthur Weber3Wen Li4Department of Electrical and Computer Engineering, Michigan State UniversityInstitute for Quantitative Health Science and Engineering, Michigan State UniversityDepartment of Electrical and Computer Engineering, Michigan State UniversityDepartment of Physiology, Michigan State UniversityDepartment of Electrical and Computer Engineering, Michigan State UniversityAbstract This paper presents a thin-film, three-dimensional (3D) opto-electro array featuring four addressable microscale light-emitting diodes (LEDs) for surface cortex illumination and nine penetrating electrodes for simultaneous recording of light-evoked neural activities. Inspired by the origami concept, we have developed a meticulously designed “bridge+trench” structure that facilitates the transformation of the array from 2D to 3D while preventing damage to the thin film metal. Prior to device transformation, the shape and dimensions of the 2D array can be customized, enhancing its versatility for various applications. In addition, the arched base offers strong mechanical support to facilitate the direct insertion of the probe into tissue without any mechanical reinforcement. The array was encapsulated using polyimide and epoxy to ensure mechanical flexibility and biocompatibility of the device. The efficacy of the device was evaluated through comprehensive in vitro and in vivo characterization.https://doi.org/10.1038/s41378-024-00842-x
spellingShingle Yan Gong
Xiang Liu
Zebin Jiang
Arthur Weber
Wen Li
Foldable 3D opto-electro array for optogenetic neuromodulation and physiology recording
Microsystems & Nanoengineering
title Foldable 3D opto-electro array for optogenetic neuromodulation and physiology recording
title_full Foldable 3D opto-electro array for optogenetic neuromodulation and physiology recording
title_fullStr Foldable 3D opto-electro array for optogenetic neuromodulation and physiology recording
title_full_unstemmed Foldable 3D opto-electro array for optogenetic neuromodulation and physiology recording
title_short Foldable 3D opto-electro array for optogenetic neuromodulation and physiology recording
title_sort foldable 3d opto electro array for optogenetic neuromodulation and physiology recording
url https://doi.org/10.1038/s41378-024-00842-x
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AT zebinjiang foldable3doptoelectroarrayforoptogeneticneuromodulationandphysiologyrecording
AT arthurweber foldable3doptoelectroarrayforoptogeneticneuromodulationandphysiologyrecording
AT wenli foldable3doptoelectroarrayforoptogeneticneuromodulationandphysiologyrecording