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Figure 5 | Journal of Biological Engineering

Figure 5

From: Large naturally-produced electric currents and voltage traverse damaged mammalian spinal cord

Figure 5

Probe calibration. In A, an image of the vibrating probe recording current delivered from a source pipette at a distance of 150 μm is shown. Below it, the vibrating probe has been moved away from the point source to a distance of 600 μm, within the gradient of current delivered by the source pipette. In B, a plot of current density vs distance recorded from such a source pipette (calibration current = 60 nA) recorded by the vibrating electrode. Note that the current density measured 150 μm from the source pipette was approximately 21 μA/cm2, a value calculated from this distance and total calibration current (see text). This demonstrates that the vibrating electrode was correctly calibrated.

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