Materials and devices for high‐density, high‐throughput micro‐electrocorticography arrays

The pursuit of precisely recording and localizing neural activities in brain cortical regions drives the development of advanced electrocorticography (ECoG) devices. Remarkable progress has led to the emergence of micro-ECoG (µECoG) devices with sub-millimeter resolutions. This review presents the c...

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Main Authors: Yang Xie, Yanxiu Peng, Jinhong Guo, Muyang Liu, Bozhen Zhang, Lan Yin, He Ding, Xing Sheng
Format: Article
Language:English
Published: KeAi Communications Co. Ltd. 2025-01-01
Series:Fundamental Research
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Online Access:http://www.sciencedirect.com/science/article/pii/S2667325824000402
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author Yang Xie
Yanxiu Peng
Jinhong Guo
Muyang Liu
Bozhen Zhang
Lan Yin
He Ding
Xing Sheng
author_facet Yang Xie
Yanxiu Peng
Jinhong Guo
Muyang Liu
Bozhen Zhang
Lan Yin
He Ding
Xing Sheng
author_sort Yang Xie
collection DOAJ
description The pursuit of precisely recording and localizing neural activities in brain cortical regions drives the development of advanced electrocorticography (ECoG) devices. Remarkable progress has led to the emergence of micro-ECoG (µECoG) devices with sub-millimeter resolutions. This review presents the current research status, development directions, potential innovations and applications of high-density, high-throughput µECoG devices. First, we summarize the challenges associated with accurately recording single or multiple neurons using existing µECoG devices, including passive multielectrode and active transistor arrays. Second, we focus on cutting-edge advancements in passive µECoG devices by discussing the design principles and fabrication strategies to optimize three key parameters: impedance, mechanical flexibility, and biocompatibility. Furthermore, recent findings highlight the need for further research and development in active transistor arrays, including silicon, metal oxide, and solution-gated transistors. These active transistor arrays have the potential to unlock the capabilities of high-density, high-throughput µECoG devices and overcome the limitations of passive multielectrode arrays. The review explores the potential innovations and applications of µECoG devices, showcasing their effectiveness for both brain science research and clinical applications.
format Article
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institution Kabale University
issn 2667-3258
language English
publishDate 2025-01-01
publisher KeAi Communications Co. Ltd.
record_format Article
series Fundamental Research
spelling doaj-art-af078567b83d4c34aa76f4fbdf4b3abf2025-01-29T05:02:35ZengKeAi Communications Co. Ltd.Fundamental Research2667-32582025-01-01511728Materials and devices for high‐density, high‐throughput micro‐electrocorticography arraysYang Xie0Yanxiu Peng1Jinhong Guo2Muyang Liu3Bozhen Zhang4Lan Yin5He Ding6Xing Sheng7Department of Electronic Engineering, Beijing National Research Center for Information Science and Technology, Institute for Precision Medicine, Laboratory of Flexible Electronics Technology, IDG/McGovern Institute for Brain Research, Tsinghua University, Beijing 100084, ChinaBeijing Engineering Research Center of Mixed Reality and Advanced Display, School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, ChinaDepartment of Electronic Engineering, Beijing National Research Center for Information Science and Technology, Institute for Precision Medicine, Laboratory of Flexible Electronics Technology, IDG/McGovern Institute for Brain Research, Tsinghua University, Beijing 100084, ChinaDepartment of Electronic Engineering, Beijing National Research Center for Information Science and Technology, Institute for Precision Medicine, Laboratory of Flexible Electronics Technology, IDG/McGovern Institute for Brain Research, Tsinghua University, Beijing 100084, ChinaSchool of Materials Science and Engineering, The Key Laboratory of Advanced Materials of Ministry of Education, State Key Laboratory of New Ceramics and Fine Processing, Laboratory of Flexible Electronics Technology, Tsinghua University, Beijing 100084, ChinaSchool of Materials Science and Engineering, The Key Laboratory of Advanced Materials of Ministry of Education, State Key Laboratory of New Ceramics and Fine Processing, Laboratory of Flexible Electronics Technology, Tsinghua University, Beijing 100084, ChinaBeijing Engineering Research Center of Mixed Reality and Advanced Display, School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, China; Corresponding authors.Department of Electronic Engineering, Beijing National Research Center for Information Science and Technology, Institute for Precision Medicine, Laboratory of Flexible Electronics Technology, IDG/McGovern Institute for Brain Research, Tsinghua University, Beijing 100084, China; Corresponding authors.The pursuit of precisely recording and localizing neural activities in brain cortical regions drives the development of advanced electrocorticography (ECoG) devices. Remarkable progress has led to the emergence of micro-ECoG (µECoG) devices with sub-millimeter resolutions. This review presents the current research status, development directions, potential innovations and applications of high-density, high-throughput µECoG devices. First, we summarize the challenges associated with accurately recording single or multiple neurons using existing µECoG devices, including passive multielectrode and active transistor arrays. Second, we focus on cutting-edge advancements in passive µECoG devices by discussing the design principles and fabrication strategies to optimize three key parameters: impedance, mechanical flexibility, and biocompatibility. Furthermore, recent findings highlight the need for further research and development in active transistor arrays, including silicon, metal oxide, and solution-gated transistors. These active transistor arrays have the potential to unlock the capabilities of high-density, high-throughput µECoG devices and overcome the limitations of passive multielectrode arrays. The review explores the potential innovations and applications of µECoG devices, showcasing their effectiveness for both brain science research and clinical applications.http://www.sciencedirect.com/science/article/pii/S2667325824000402ElectrocorticographyMicro-electrocorticographyFlexible electronicsBioelectronicsNeural electrode array
spellingShingle Yang Xie
Yanxiu Peng
Jinhong Guo
Muyang Liu
Bozhen Zhang
Lan Yin
He Ding
Xing Sheng
Materials and devices for high‐density, high‐throughput micro‐electrocorticography arrays
Fundamental Research
Electrocorticography
Micro-electrocorticography
Flexible electronics
Bioelectronics
Neural electrode array
title Materials and devices for high‐density, high‐throughput micro‐electrocorticography arrays
title_full Materials and devices for high‐density, high‐throughput micro‐electrocorticography arrays
title_fullStr Materials and devices for high‐density, high‐throughput micro‐electrocorticography arrays
title_full_unstemmed Materials and devices for high‐density, high‐throughput micro‐electrocorticography arrays
title_short Materials and devices for high‐density, high‐throughput micro‐electrocorticography arrays
title_sort materials and devices for high density high throughput micro electrocorticography arrays
topic Electrocorticography
Micro-electrocorticography
Flexible electronics
Bioelectronics
Neural electrode array
url http://www.sciencedirect.com/science/article/pii/S2667325824000402
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