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

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

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

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 brain. Besides, the remained ultra-soft deformable probe after PEG dissolution is expected to be the next generation of neural implant for chronic recording.

Original languageEnglish
Title of host publication2023 22nd International Conference on Solid-State Sensors, Actuators and Microsystems, Transducers 2023
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages322-325
Number of pages4
ISBN (Electronic)9784886864352
StatePublished - 2023
Event22nd International Conference on Solid-State Sensors, Actuators and Microsystems, Transducers 2023 - Kyoto, Japan
Duration: 25 Jun 202329 Jun 2023

Publication series

Name2023 22nd International Conference on Solid-State Sensors, Actuators and Microsystems, Transducers 2023

Conference

Conference22nd International Conference on Solid-State Sensors, Actuators and Microsystems, Transducers 2023
Country/TerritoryJapan
CityKyoto
Period25/06/2329/06/23

Keywords

  • Picosecond Laser Cutting
  • U-section Coating
  • Ultra-soft Neural Probe

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