Table 2 Estimated electrical properties of RBCs in different ionic media.

From: Vm-related extracellular potentials observed in red blood cells

 

Measured ζ (V)

Estimated Vm from GHK (V)

Vm (V)

Estimated ψSt (V)

NaCl

 − 0.0091 ± 0.0027

 − 0.014

0.0058

 − 0.034

KCl

 − 0.0108 ± 0.0012

 − 0.001

0.0008

 − 0.028

NaCl/KCl (50:50)

 − 0.0090 ± 0.0021

 − 0.008

0.0030

 − 0.028

CaCl2

 − 0.0027 ± 0.0026

 − 0.060

0.0088

 − 0.030

  1. The measured value of ζ in different ionic media, together with the calculated value of Vm for each medium determined using the GHK equation. We used the calculated value of Vm to determine a Ξ = 0.27, and determine ζ’ using Eq. (5). This was used in Eq. (4) to estimate ψSt due solely to the surface charge, which showed a high degree of similarity across the four cases.
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