Electrodiffusion dynamics in the cardiomyocyte dyad at nano-scale resolution using the Poisson-Nernst-Planck (PNP) equations
Fig 5
Formation of a Debye layer near a membrane in a PNP simulation.
We consider a simple 2D example with two ions. Initially, the concentrations are constant in and
. The initial concentration of
is 100 mM in both
and
, and the initial concentration of K+ is 100.1 mM in
and 99.9 mM in
. A: Ionic concentrations and charge density near the membrane as functions of x for five different points in time. B: Charge density,
, 0.1 nm right of the membrane (x1) and 20 nm to the right of the membrane (x2) as functions of time. C: Illustration of the simulation setup. We use
,
ns and a uniform mesh with
nm.