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Measuring TM electrical properties

The TM contains a signifcant concentration of charged molecules, and these charges can play a key role in determining the mechanical properties of this tissue. The microfabricated device shown here contains eight electrodes onto which the TM can be placed. By using various combinations of electrodes to apply voltages and measure currents while controling the media in which the TM is bathed, we can determine the concentration of these fixed charges.