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Monte Carlo analysis of polymer translocation with deterministic and noisy electric fields

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Valenti D., Denaro G., Adorno D., Pizzolato N., Zammito S., Spagnolo B.
Open Physics
|
2012
|
vol. 10
|
issue 3
560-567
EN
Polymer translocation through the nanochannel is studied by means of a Monte Carlo approach, in the presence of a static or oscillating external electric voltage. The polymer is described as a chain molecule according to the two-dimensional “bond fluctuation model”. It moves through a piecewise linear channel, which mimics a nanopore in a biological membrane. The monomers of the chain interact with the walls of the channel, modelled as a reflecting barrier. We analyze the polymer dynamics, concentrating on the translocation time through the channel, when an external electric field is applied. By introducing a source of coloured noise, we analyze the effect of correlated random fluctuations on the polymer translocation dynamics.
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