Advantages of using microfabricated extracellular electrodes for in vitro neuronal recording

Breckenridge, L. and Wilson, R.J.A. and Connolly, P. and Curtis, A.S.G. and Dow, J.A.T. and Blackshaw, E. and Wilkinson, C.D.W. (1995) Advantages of using microfabricated extracellular electrodes for in vitro neuronal recording. Journal of Neuroscience Research, 42 (2). pp. 266-276. ISSN 0360-4012

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Official URL: http://dx/doi.org/10.1002/jnr.490420215

Abstract

We describe fabrication methods and the characterisation and use of extracellalar microelectrode arrays for the detection of action potentials from neurons in culture. The 100 μm2 platinised gold microelectrodes in the 64 electrode array detect the external current which flows during an action potential with S:N ratios of up to 500:1, giving a maximum recorded signal of several millivolts. The performance of these electrodes is enhanced if good sealing of the cells over the electrodes is obtained and further enhanced if the electrodes and the cells lie in a deep groove in the substratum. The electrodes can be used for both recording and stimulation of activity in cultured neurons and for recording from multiple sites on a single cell. The use of such electrodes to obtain recordings from invertebrate neurons is described. The particular advantages of these electrodes, their long term stability, non-invasive nature, high packing density, and utility in stimulation, are demonstrated.

Creators(s):	Breckenridge, L., Wilson, R.J.A., Connolly, P., Curtis, A.S.G., Dow, J.A.T., Blackshaw, E. and Wilkinson, C.D.W.;
Item type:	Article
ID code:	28858
Keywords:	extracellular microelectrode arrays, multisite recording, cell/electrode seal, neuronal networks, Bioengineering, Engineering (General). Civil engineering (General), Cellular and Molecular Neuroscience
Subjects:	Technology > Engineering (General). Civil engineering (General) > Bioengineering Technology > Engineering (General). Civil engineering (General)
Department:	Faculty of Engineering > Bioengineering
Depositing user:	Ms Ashley Urie
Date deposited:	29 Oct 2010 11:27
Last modified:	22 Jan 2021 04:26
URI:	https://strathprints.strath.ac.uk/id/eprint/28858
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