Disposable MEMS optrode array integrated with single LED for neurostimulation

Sunghyun Yoo; Hongkyun Lee; Sang Beom Jun; Yong Kweon Kim; Chang Hyeon Ji

doi:10.1016/j.sna.2018.02.039

Disposable MEMS optrode array integrated with single LED for neurostimulation

Sunghyun Yoo, Hongkyun Lee, Sang Beom Jun, Yong Kweon Kim, Chang Hyeon Ji

Electronic and Electrical Engineering

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

9 Scopus citations

Abstract

We present an LED-waveguide-based neural probe array with the highest total light power delivery from a single commercial LED. A separable configuration between the LED and the waveguide has been proposed and verified experimentally for a disposable probe tip. The system comprises of a disposable MEMS optrode array and a reusable unit. The optrode array consists of a 4 × 4 array of 6 mm-long optical fibers assembled with thermally reflowed square-shaped glass microlenses. The reusable unit includes a domed top LED and driving circuitry. Measured light delivery efficiency of the optrode array and the total power efficiency of the probe were −10.6 dB and −21.6 dB, respectively.

Original language	English
Pages (from-to)	276-284
Number of pages	9
Journal	Sensors and Actuators, A: Physical
Volume	273
DOIs	https://doi.org/10.1016/j.sna.2018.02.039
State	Published - 15 Apr 2018

Keywords

Light Emitting Diode (LED)
Neural probe
Neurostimulation
Optrode

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title = "Disposable MEMS optrode array integrated with single LED for neurostimulation",

abstract = "We present an LED-waveguide-based neural probe array with the highest total light power delivery from a single commercial LED. A separable configuration between the LED and the waveguide has been proposed and verified experimentally for a disposable probe tip. The system comprises of a disposable MEMS optrode array and a reusable unit. The optrode array consists of a 4 × 4 array of 6 mm-long optical fibers assembled with thermally reflowed square-shaped glass microlenses. The reusable unit includes a domed top LED and driving circuitry. Measured light delivery efficiency of the optrode array and the total power efficiency of the probe were −10.6 dB and −21.6 dB, respectively.",

keywords = "Light Emitting Diode (LED), Neural probe, Neurostimulation, Optrode",

author = "Sunghyun Yoo and Hongkyun Lee and Jun, {Sang Beom} and Kim, {Yong Kweon} and Ji, {Chang Hyeon}",

note = "Funding Information: This work was supported by the Center for Integrated Smart Sensors funded by the Ministry of Science, ICT & Future Planning as Global Frontier Project (CISS-2012M3A6A6054204), by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2015R1D1A1A09058627), and by the Convergence Technology Development Program for Bionic Arm through the National Research Foundation of Korea (NRF) funded by the Ministry of Science & ICT (2017M3C1B2085310). Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

year = "2018",

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doi = "10.1016/j.sna.2018.02.039",

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AU - Yoo, Sunghyun

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AU - Jun, Sang Beom

AU - Kim, Yong Kweon

AU - Ji, Chang Hyeon

N1 - Funding Information: This work was supported by the Center for Integrated Smart Sensors funded by the Ministry of Science, ICT & Future Planning as Global Frontier Project (CISS-2012M3A6A6054204), by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2015R1D1A1A09058627), and by the Convergence Technology Development Program for Bionic Arm through the National Research Foundation of Korea (NRF) funded by the Ministry of Science & ICT (2017M3C1B2085310). Publisher Copyright: © 2018 Elsevier B.V.

PY - 2018/4/15

Y1 - 2018/4/15

N2 - We present an LED-waveguide-based neural probe array with the highest total light power delivery from a single commercial LED. A separable configuration between the LED and the waveguide has been proposed and verified experimentally for a disposable probe tip. The system comprises of a disposable MEMS optrode array and a reusable unit. The optrode array consists of a 4 × 4 array of 6 mm-long optical fibers assembled with thermally reflowed square-shaped glass microlenses. The reusable unit includes a domed top LED and driving circuitry. Measured light delivery efficiency of the optrode array and the total power efficiency of the probe were −10.6 dB and −21.6 dB, respectively.

AB - We present an LED-waveguide-based neural probe array with the highest total light power delivery from a single commercial LED. A separable configuration between the LED and the waveguide has been proposed and verified experimentally for a disposable probe tip. The system comprises of a disposable MEMS optrode array and a reusable unit. The optrode array consists of a 4 × 4 array of 6 mm-long optical fibers assembled with thermally reflowed square-shaped glass microlenses. The reusable unit includes a domed top LED and driving circuitry. Measured light delivery efficiency of the optrode array and the total power efficiency of the probe were −10.6 dB and −21.6 dB, respectively.

KW - Light Emitting Diode (LED)

KW - Neural probe

KW - Neurostimulation

KW - Optrode

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JO - Sensors and Actuators, A: Physical

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Disposable MEMS optrode array integrated with single LED for neurostimulation

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Keywords

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