Langevin dynamics study of polymer translocation through a nanopore

L Guo and E Luijten, COMPUTER SIMULATION STUDIES IN CONDENSED-MATTER PHYSICS XVIII, 105, 159-+ (2006).

We study the translocation of a polymer through a nanopore by means of Langevin dynamics simulations. For different driving forces F-driving we find different power-law scaling behavior for the polymer translocation time tau(trans) as a function of the degree of polymerization N. If F-driving is small the polymer stays in or near equilibrium during translocation and the observed behavior is consistent with predictions from equilibrium theory. For large Fdri ing the polymer is driven far out of equilibrium. In this case, we observe a linear relation between tau(trans) and N, in apparent contradiction with a theoretically suggested lower bound.

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