A polyimide-based flexible optoelectrodes for low-noise neural recording

Zhejun Guo; Bowen Ji; Minghao Wang; Chaofan Ge; Longchun Wang; Xiaowei Gu; Bin Yang; Xiaolin Wang; Chengyu Li; Jingquan Liu

doi:10.1109/LED.2019.2915323

A polyimide-based flexible optoelectrodes for low-noise neural recording

Zhejun Guo, Bowen Ji, Minghao Wang, Chaofan Ge, Longchun Wang, Xiaowei Gu, Bin Yang, Xiaolin Wang, Chengyu Li, Jingquan Liu

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

19 Scopus citations

Abstract

The optoelectrode arrays can modulate the neuron precisely with high time resolution and good reversibility compared to electrical stimulation. However, the integrated light-emitting diode (LED) or laser diode (LD) will introduce noise from the surroundings and affects the signal quality recording by the electrodes. Here, we present a polyimide (PI)-based flexible optoelectrode for low-noise neural recording. Compared with traditional electrode, this low-noise optoelectrode has a metal shield between the recording part and LED part which can isolate the electromagnetic noise from the active devices and Poly (3, 4-ethylenedioxythiophene) - poly (styrenesulfonate) (PEDOT: PSS) is electroplated to further increase the quality of the signal. It has been proved that the transient impulse aroused by turning ON/OFF the LED is eliminated in vitro bench test. In vivo, the electrode with metal shield has less high-frequency noise and 50 Hz power noise is suppressed compared with the electrode without shield.

Original language	English
Article number	8708264
Pages (from-to)	1190-1193
Number of pages	4
Journal	IEEE Electron Device Letters
Volume	40
Issue number	7
DOIs	https://doi.org/10.1109/LED.2019.2915323
State	Published - Jul 2019
Externally published	Yes

Keywords

Electrode
flexible
low-noise
optogenetics

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abstract = "The optoelectrode arrays can modulate the neuron precisely with high time resolution and good reversibility compared to electrical stimulation. However, the integrated light-emitting diode (LED) or laser diode (LD) will introduce noise from the surroundings and affects the signal quality recording by the electrodes. Here, we present a polyimide (PI)-based flexible optoelectrode for low-noise neural recording. Compared with traditional electrode, this low-noise optoelectrode has a metal shield between the recording part and LED part which can isolate the electromagnetic noise from the active devices and Poly (3, 4-ethylenedioxythiophene) - poly (styrenesulfonate) (PEDOT: PSS) is electroplated to further increase the quality of the signal. It has been proved that the transient impulse aroused by turning ON/OFF the LED is eliminated in vitro bench test. In vivo, the electrode with metal shield has less high-frequency noise and 50 Hz power noise is suppressed compared with the electrode without shield.",

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author = "Zhejun Guo and Bowen Ji and Minghao Wang and Chaofan Ge and Longchun Wang and Xiaowei Gu and Bin Yang and Xiaolin Wang and Chengyu Li and Jingquan Liu",

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AU - Guo, Zhejun

AU - Ji, Bowen

AU - Wang, Minghao

AU - Ge, Chaofan

AU - Wang, Longchun

AU - Gu, Xiaowei

AU - Yang, Bin

AU - Wang, Xiaolin

AU - Li, Chengyu

AU - Liu, Jingquan

PY - 2019/7

Y1 - 2019/7

N2 - The optoelectrode arrays can modulate the neuron precisely with high time resolution and good reversibility compared to electrical stimulation. However, the integrated light-emitting diode (LED) or laser diode (LD) will introduce noise from the surroundings and affects the signal quality recording by the electrodes. Here, we present a polyimide (PI)-based flexible optoelectrode for low-noise neural recording. Compared with traditional electrode, this low-noise optoelectrode has a metal shield between the recording part and LED part which can isolate the electromagnetic noise from the active devices and Poly (3, 4-ethylenedioxythiophene) - poly (styrenesulfonate) (PEDOT: PSS) is electroplated to further increase the quality of the signal. It has been proved that the transient impulse aroused by turning ON/OFF the LED is eliminated in vitro bench test. In vivo, the electrode with metal shield has less high-frequency noise and 50 Hz power noise is suppressed compared with the electrode without shield.

AB - The optoelectrode arrays can modulate the neuron precisely with high time resolution and good reversibility compared to electrical stimulation. However, the integrated light-emitting diode (LED) or laser diode (LD) will introduce noise from the surroundings and affects the signal quality recording by the electrodes. Here, we present a polyimide (PI)-based flexible optoelectrode for low-noise neural recording. Compared with traditional electrode, this low-noise optoelectrode has a metal shield between the recording part and LED part which can isolate the electromagnetic noise from the active devices and Poly (3, 4-ethylenedioxythiophene) - poly (styrenesulfonate) (PEDOT: PSS) is electroplated to further increase the quality of the signal. It has been proved that the transient impulse aroused by turning ON/OFF the LED is eliminated in vitro bench test. In vivo, the electrode with metal shield has less high-frequency noise and 50 Hz power noise is suppressed compared with the electrode without shield.

KW - Electrode

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KW - low-noise

KW - optogenetics

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JO - IEEE Electron Device Letters

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M1 - 8708264

ER -

A polyimide-based flexible optoelectrodes for low-noise neural recording

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Keywords

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