Salt-induced counterion-mobility anomaly in polyelectrolyte electrophoresis.

@article{Fischer2008SaltinducedCA,
  title={Salt-induced counterion-mobility anomaly in polyelectrolyte electrophoresis.},
  author={Sebastian Fischer and Ali Naji and Roland R Netz},
  journal={Physical review letters},
  year={2008},
  volume={101 17},
  pages={176103}
}
We study the electrokinetics of a single polyelectrolyte chain in salt solution using hydrodynamic simulations. The salt-dependent chain mobility compares well with experimental DNA data. The mobility of condensed counterions exhibits a salt-dependent change of sign, an anomaly that is also reflected in the counterion excess conductivity. Using Green's… CONTINUE READING