Ion current rectification at nanopores in glass membranes.

  title={Ion current rectification at nanopores in glass membranes.},
  author={Henry S White and Andreas Bund},
  journal={Langmuir : the ACS journal of surfaces and colloids},
  volume={24 5},
The origin of ion current rectification observed at conical-shaped nanopores in glass membranes immersed in KCl solutions has been investigated using finite-element simulations. The ion concentrations and fluxes (due to diffusion, migration, and electroosmotic convection) were determined by the simultaneous solution of the Nernst-Planck, Poisson, and Navier-Stokes equations for the two-ion (K+ and Cl-) system. Fixed surface charge on both the internal and external glass surfaces that define the… CONTINUE READING


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