Table 3 Solute transport properties

kB

Boltzmann constant

1.380 × 10⁻¹¹

pJ/K

e

Electron charge

1.6 × 10⁻¹⁰

nC

F

Faraday constant

9.648 × 10⁴

nC/nmol

D_Na

Free solution/cytoplasm Na⁺ diffusion¹

1.39 × 10⁻⁶

mm²/s

D_K

Free solution/cytoplasm K⁺ diffusion¹

2.04 × 10⁻⁶

mm²/s

D_Cl

Free solution/cytoplasm Cl^- diffusion¹

2.12 × 10⁻⁶

mm²/s

D_Nai,c

Intracellular Na⁺ diffusion

1.39 × 10⁻⁸

mm²/s

D_Ki,c

Intracellular K⁺ diffusion

2.04 × 10⁻⁸

mm²/s

D_Cli,c

Intracellular Cl^- diffusion

2.12 × 10⁻⁸

mm²/s

D_Nae,c

Extracellular Na⁺ diffusion

1.39 × 10⁻⁶

mm²/s

D_Ke,c

Extracellular K⁺ diffusion

2.04 × 10⁻⁶

mm²/s

D_Cle,c

Extracellular Cl^- diffusion

2.12 × 10⁻⁶

mm²/s

g_Na

Na⁺ fibre cell membrane conductivity²

2.2

mS/m²

g_Cl

Cl^- fibre cell membrane conductivity²

2.2

mS/m²

g_K

K⁺ surface membrane conductivity²

2.1

S/m²

Imax

Na⁺/K⁺ pump max. pump rate

0.478

A/m²

K_1/2Na

Na⁺/K⁺ pump 1/2 max Na⁺ concentration

9

mM

K_1/2K

Na⁺/K⁺ pump 1/2 max K⁺ concentration

3.9

mM