  We investigate the translocation of stiff polymers in the presence of binding
particles through a nanopore by two-dimensional Langevin dynamics simulations.
We find that the mean translocation time shows a minimum as a function of the
binding energy $\epsilon$ and the particle concentration $\phi$, due to the
interplay of the force from binding and the frictional force. Particularly, for
the strong binding the translocation proceeds with a decreasing translocation
velocity induced by a significant increase of the frictional force. In
addition, both $\epsilon$ and $\phi$ have an notable impact on the distribution
of the translocation time. With increasing $\epsilon$ and $\phi$, it undergoes
a transition from an asymmetric and broad distribution under the weak binding
to a nearly Gaussian one under the strong binding, and its width becomes
gradually narrower.

Soft Condensed Matter;Statistical Mechanics;Biological Physics;Biomolecules