On-chip optical stimulation and electrical recording from cells

Alexey Yakushenko; Zheng Gong; Vanessa Maybeck; Boris Hofmann; Erdan Gu; Martin D. Dawson; Andreas Offenhaeusser; Bernhard Wolfrum

doi:10.1117/1.JBO.18.11.111402

20 June 2013 On-chip optical stimulation and electrical recording from cells

Alexey Yakushenko, Zheng Gong, Vanessa Maybeck, Boris Hofmann, Erdan Gu, Martin D. Dawson, Andreas Offenhaeusser, Bernhard Wolfrum

Author Affiliations +

Journal of Biomedical Optics, Vol. 18, Issue 11, 111402 (June 2013). https://doi.org/10.1117/1.JBO.18.11.111402

Abstract

We present an optoelectrical device capable of in vitro optical stimulation and electrophysiological recording. The device consists of an array of micropixellated InGaN light-emitting diodes coupled to a custom-made ultrathin planar microelectrode array. Cells can be cultured directly on the chip for short- and long-term electrophysiological experiments. To show the functionality of the device, we transfected a cardiomyocyte-like cell line (HL-1) with a light-sensitive protein channelrhodopsin. We monitored action potentials of individual, spontaneously beating, HL-1 cells growing on the chip by extracellular electrical recordings. On-chip optical stimulation was demonstrated by triggering network activity in a confluent HL-1 cell culture and visualized by calcium imaging. We see the potential of our system for electrophysiological experiments with optogenetically modified cells. Optical stimulation can be performed directly on the chip without additional optical components or external light sources.

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Alexey Yakushenko, Zheng Gong, Vanessa Maybeck, Boris Hofmann, Erdan Gu, Martin D. Dawson, Andreas Offenhaeusser, and Bernhard Wolfrum "On-chip optical stimulation and electrical recording from cells," Journal of Biomedical Optics 18(11), 111402 (20 June 2013). https://doi.org/10.1117/1.JBO.18.11.111402

Published: 20 June 2013

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Cited by 16 scholarly publications and 1 patent.

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KEYWORDS

Light emitting diodes

Electrodes

Video

Biomedical optics

Calcium

Proteins

Metals

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