A wireless implantable switched-capacitor based optogenetic stimulating system

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

doi:10.1109/EMBC.2014.6943731

A wireless implantable switched-capacitor based optogenetic stimulating system

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

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

17 Citations (Scopus)

Abstract

This paper presents a power-efficient implantable optogenetic interface using a wireless switched-capacitor based stimulating (SCS) system. The SCS efficiently charges storage capacitors directly from an inductive link and periodically discharges them into an array of micro-LEDs, providing high instantaneous power without affecting wireless link and system supply voltage. A custom-designed computer interface in LabVIEW environment wirelessly controls stimulation parameters through the inductive link, and an optrode array enables simultaneous neural recording along with optical stimulation. The 4-channel SCS system prototype has been implemented in a 0.35-μm CMOS process and combined with the optrode array. In vivo experiments involving light-induced local field potentials verified the efficacy of the SCS system. An implantable version of the SCS system with flexible hermetic sealing is under development for chronic experiments.

Original language	English
Title of host publication	2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2014
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	878-881
Number of pages	4
ISBN (Electronic)	9781424479290
DOIs	https://doi.org/10.1109/EMBC.2014.6943731
Publication status	Published - 2014 Nov 2
Externally published	Yes
Event	2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2014 - Chicago, United States Duration: 2014 Aug 26 → 2014 Aug 30

Publication series

Name	2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2014

Other

Other	2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2014
Country/Territory	United States
City	Chicago
Period	14/8/26 → 14/8/30

Bibliographical note

Publisher Copyright:
© 2014 IEEE.

ASJC Scopus subject areas

Health Informatics
Computer Science Applications
Biomedical Engineering
General Medicine

Access to Document

10.1109/EMBC.2014.6943731

Cite this

Lee, H. M., Kwon, K. Y., Li, W., & Ghovanloo, M. (2014). A wireless implantable switched-capacitor based optogenetic stimulating system. In 2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2014 (pp. 878-881). Article 6943731 (2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2014). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/EMBC.2014.6943731

A wireless implantable switched-capacitor based optogenetic stimulating system. / Lee, Hyung Min; Kwon, Ki Yong; Li, Wen et al.
2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2014. Institute of Electrical and Electronics Engineers Inc., 2014. p. 878-881 6943731 (2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2014).

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

Lee, HM, Kwon, KY, Li, W & Ghovanloo, M 2014, A wireless implantable switched-capacitor based optogenetic stimulating system. in 2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2014., 6943731, 2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2014, Institute of Electrical and Electronics Engineers Inc., pp. 878-881, 2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2014, Chicago, United States, 14/8/26. https://doi.org/10.1109/EMBC.2014.6943731

Lee HM, Kwon KY, Li W, Ghovanloo M. A wireless implantable switched-capacitor based optogenetic stimulating system. In 2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2014. Institute of Electrical and Electronics Engineers Inc. 2014. p. 878-881. 6943731. (2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2014). doi: 10.1109/EMBC.2014.6943731

Lee, Hyung Min ; Kwon, Ki Yong ; Li, Wen et al. / A wireless implantable switched-capacitor based optogenetic stimulating system. 2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2014. Institute of Electrical and Electronics Engineers Inc., 2014. pp. 878-881 (2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2014).

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A wireless implantable switched-capacitor based optogenetic stimulating system

Abstract

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Bibliographical note

ASJC Scopus subject areas

Access to Document

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