A wireless slanted optrode array with integrated micro leds for optogenetics

Ki Yong Kwon, Hyung Min Lee, Maysam Ghovanloo, Arthur Weber, Wen Li

Research output: Chapter in Book/Report/Conference proceedingConference contribution

30 Citations (Scopus)

Abstract

This paper presents a wireless-enabled, flexible optrode array with multichannel micro light-emitting diodes (μ-LEDs) for bi-directional wireless neural interface. The array integrates wirelessly addressable μ-LED chips with a slanted polymer optrode array for precise light delivery and neural recording at multiple cortical layers simultaneously. A droplet backside exposure (DBE) method was developed to monolithically fabricate varying-length optrodes on a single polymer platform. In vivo tests in rat brains demonstrated that the μ-LEDs were inductively powered and controlled using a wireless switched-capacitor stimulator (SCS), and light-induced neural activity was recorded with the optrode array concurrently.

Original languageEnglish
Title of host publicationMEMS 2014 - 27th IEEE International Conference on Micro Electro Mechanical Systems
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages813-816
Number of pages4
ISBN (Print)9781479935086
DOIs
Publication statusPublished - 2014
Event27th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2014 - San Francisco, CA, United States
Duration: 2014 Jan 262014 Jan 30

Publication series

NameProceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
ISSN (Print)1084-6999

Other

Other27th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2014
CountryUnited States
CitySan Francisco, CA
Period14/1/2614/1/30

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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  • Cite this

    Kwon, K. Y., Lee, H. M., Ghovanloo, M., Weber, A., & Li, W. (2014). A wireless slanted optrode array with integrated micro leds for optogenetics. In MEMS 2014 - 27th IEEE International Conference on Micro Electro Mechanical Systems (pp. 813-816). [6765765] (Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/MEMSYS.2014.6765765