Ultra-Soft Neural Probe with a Temporary High-Strength U-Section Coating by Picosecond Laser Micromachining

Xiaoli You; Fanqi Sun; Yuhao Zhou; Minghao Wang; Mengfei Xu; Xichen Yuan; Honglong Chang; Jingquan Liu; Bowen Ji

doi:10.1002/tee.23985

Ultra-Soft Neural Probe with a Temporary High-Strength U-Section Coating by Picosecond Laser Micromachining

Xiaoli You, Fanqi Sun, Yuhao Zhou, Minghao Wang, Mengfei Xu, Xichen Yuan, Honglong Chang, Jingquan Liu, Bowen Ji

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

This paper reports an ultra-soft neural probe with a temporary high-strength U-section coating of polyethylene glycol (PEG) for the first time. Its fabrication is compatible with MEMS processes, and an ultrathin U-section coating over the probe's back and sidewall is precisely formed by spinning and cold laser cutting. With this novel coating, the probe has both minimized cross-sectional area and sufficient mechanical strength for low-invasive penetration into the brain. Besides, the remained ultra-soft deformable probe after PEG dissolution is expected to be the next generation of neural implants for chronic recording.

Original language	English
Pages (from-to)	762-766
Number of pages	5
Journal	IEEJ Transactions on Electrical and Electronic Engineering
Volume	19
Issue number	5
DOIs	https://doi.org/10.1002/tee.23985
State	Published - May 2024

Keywords

picosecond laser cutting
U-section coating
ultra-soft neural probe

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10.1002/tee.23985

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title = "Ultra-Soft Neural Probe with a Temporary High-Strength U-Section Coating by Picosecond Laser Micromachining",

abstract = "This paper reports an ultra-soft neural probe with a temporary high-strength U-section coating of polyethylene glycol (PEG) for the first time. Its fabrication is compatible with MEMS processes, and an ultrathin U-section coating over the probe's back and sidewall is precisely formed by spinning and cold laser cutting. With this novel coating, the probe has both minimized cross-sectional area and sufficient mechanical strength for low-invasive penetration into the brain. Besides, the remained ultra-soft deformable probe after PEG dissolution is expected to be the next generation of neural implants for chronic recording.",

keywords = "picosecond laser cutting, U-section coating, ultra-soft neural probe",

author = "Xiaoli You and Fanqi Sun and Yuhao Zhou and Minghao Wang and Mengfei Xu and Xichen Yuan and Honglong Chang and Jingquan Liu and Bowen Ji",

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T1 - Ultra-Soft Neural Probe with a Temporary High-Strength U-Section Coating by Picosecond Laser Micromachining

AU - You, Xiaoli

AU - Sun, Fanqi

AU - Zhou, Yuhao

AU - Wang, Minghao

AU - Xu, Mengfei

AU - Yuan, Xichen

AU - Chang, Honglong

AU - Liu, Jingquan

AU - Ji, Bowen

PY - 2024/5

Y1 - 2024/5

N2 - This paper reports an ultra-soft neural probe with a temporary high-strength U-section coating of polyethylene glycol (PEG) for the first time. Its fabrication is compatible with MEMS processes, and an ultrathin U-section coating over the probe's back and sidewall is precisely formed by spinning and cold laser cutting. With this novel coating, the probe has both minimized cross-sectional area and sufficient mechanical strength for low-invasive penetration into the brain. Besides, the remained ultra-soft deformable probe after PEG dissolution is expected to be the next generation of neural implants for chronic recording.

AB - This paper reports an ultra-soft neural probe with a temporary high-strength U-section coating of polyethylene glycol (PEG) for the first time. Its fabrication is compatible with MEMS processes, and an ultrathin U-section coating over the probe's back and sidewall is precisely formed by spinning and cold laser cutting. With this novel coating, the probe has both minimized cross-sectional area and sufficient mechanical strength for low-invasive penetration into the brain. Besides, the remained ultra-soft deformable probe after PEG dissolution is expected to be the next generation of neural implants for chronic recording.

KW - picosecond laser cutting

KW - U-section coating

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JO - IEEJ Transactions on Electrical and Electronic Engineering

JF - IEEJ Transactions on Electrical and Electronic Engineering

IS - 5

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Ultra-Soft Neural Probe with a Temporary High-Strength U-Section Coating by Picosecond Laser Micromachining

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Keywords

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