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Updated: Jun 26, 2026

Electric Cell-substrate Impedance Sensing for the Quantification of Endothelial Proliferation, Barrier Function, and Motility
Published on: March 28, 2014
A study of composite electrode-tissue impedance
R L Robinson1, J L Davidson, P Wright
1School of Electrical Engineering and Electronics, University of Manchester, PO Box 88, M60 1QD, UK. Rebecca.Robinson@postgrad.manchester.ac.uk
Abstract:
Electrical impedance tomography has been used in the medical environment for many years. Recently it has been used for brain function imaging. This type of technology uses a large number of electrodes on the scalp, examples in the literature ranging from 8 to 64. In this paper, the composite impedance of the electrode in contact with tissue is investigated. An experimental method has been developed to enable the use of a commercial impedance analyzer in compliance with medical safety standards. The magnitude and long-term stability of the composite impedance of the electrode-tissue system is found to be greatly dependent on the type of electrodes used.
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