A wireless slanted optrode array with integrated micro leds for optogenetics

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

doi:10.1109/MEMSYS.2014.6765765

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 proceeding › Conference contribution

33 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 language	English
Title of host publication	MEMS 2014 - 27th IEEE International Conference on Micro Electro Mechanical Systems
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	813-816
Number of pages	4
ISBN (Print)	9781479935086
DOIs	https://doi.org/10.1109/MEMSYS.2014.6765765
Publication status	Published - 2014
Externally published	Yes
Event	27th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2014 - San Francisco, CA, United States Duration: 2014 Jan 26 → 2014 Jan 30

Publication series

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

Other

Other	27th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2014
Country	United States
City	San Francisco, CA
Period	14/1/26 → 14/1/30

ASJC Scopus subject areas

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

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10.1109/MEMSYS.2014.6765765

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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

A wireless slanted optrode array with integrated micro leds for optogenetics. / Kwon, Ki Yong; Lee, Hyung Min; Ghovanloo, Maysam; Weber, Arthur; Li, Wen.

MEMS 2014 - 27th IEEE International Conference on Micro Electro Mechanical Systems. Institute of Electrical and Electronics Engineers Inc., 2014. p. 813-816 6765765 (Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Kwon, KY, Lee, HM, 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., 6765765, Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS), Institute of Electrical and Electronics Engineers Inc., pp. 813-816, 27th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2014, San Francisco, CA, United States, 14/1/26. https://doi.org/10.1109/MEMSYS.2014.6765765

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

Kwon, Ki Yong ; Lee, Hyung Min ; Ghovanloo, Maysam ; Weber, Arthur ; Li, Wen. / A wireless slanted optrode array with integrated micro leds for optogenetics. MEMS 2014 - 27th IEEE International Conference on Micro Electro Mechanical Systems. Institute of Electrical and Electronics Engineers Inc., 2014. pp. 813-816 (Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)).

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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.",

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A wireless slanted optrode array with integrated micro leds for optogenetics

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