The European Physical Journal Special Topics

, Volume 225, Issue 8–9, pp 1583–1594 | Cite as

Current fluctuations in nanopores: The effects of electrostatic and hydrodynamic interactions

  • Mira Zorkot
  • Ramin Golestanian
  • Douwe Jan Bonthuis
Open Access
Regular Article Hybrid and Adaptive Coarse Graining Methods
Part of the following topical collections:
  1. Modern Simulation Approaches in Soft Matter Science: From Fundamental Understanding to Industrial Applications


Using nonequilibrium Langevin dynamics simulations of an electrolyte with explicit solvent particles, we investigate the effect of hydrodynamic interactions on the power spectrum of ionic nanopore currents. At low frequency, we find a power-law dependence of the power spectral density on the frequency, with an exponent depending on the ion density. Surprisingly, however, the exponent is not affected by the presence of the neutral solvent particles. We conclude that hydrodynamic interactions do not affect the shape of the power spectrum in the frequency range studied.


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Copyright information

© The Author(s) 2016

Open Access This is an Open Access article distributed under the terms of the Creative Commons Attribution License (, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Authors and Affiliations

  • Mira Zorkot
    • 1
  • Ramin Golestanian
    • 1
  • Douwe Jan Bonthuis
    • 1
  1. 1.Rudolf Peierls Centre for Theoretical Physics, Oxford UniversityOxford, OX13NPUnited Kingdom

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