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

• Autorzy: Davide Valenti , Giovanni Denaro , Dominique Adorno , Nicola Pizzolato , Salvatore Zammito , Bernardo Spagnolo
• Języki publikacji: EN

Abstrakty

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.

Słowa kluczowe

EN

polymer molecules; transport dynamics of biomolecules; noise in biological systems; Monte Carlo simulations

• Czasopismo: Open Physics
• Rocznik: 2012
• Tom: 10
• Numer: 3
• Strony: 560-567

Daty

wydano

2012-06-01

online

2012-06-17

Twórcy

autor

Davide Valenti

• Group of Interdisciplinary Physics and CNISM, Dipartimento di Fisica, Università di Palermo, Viale delle Scienze, Edificio 18, I-90128, Palermo, Italy,

autor

Giovanni Denaro

• Group of Interdisciplinary Physics and CNISM, Dipartimento di Fisica, Università di Palermo, Viale delle Scienze, Edificio 18, I-90128, Palermo, Italy

autor

Dominique Adorno

• Group of Interdisciplinary Physics and CNISM, Dipartimento di Fisica, Università di Palermo, Viale delle Scienze, Edificio 18, I-90128, Palermo, Italy,

autor

Nicola Pizzolato

• Group of Interdisciplinary Physics and CNISM, Dipartimento di Fisica, Università di Palermo, Viale delle Scienze, Edificio 18, I-90128, Palermo, Italy

autor

Salvatore Zammito

• Group of Interdisciplinary Physics and CNISM, Dipartimento di Fisica, Università di Palermo, Viale delle Scienze, Edificio 18, I-90128, Palermo, Italy

autor

Bernardo Spagnolo

• Group of Interdisciplinary Physics and CNISM, Dipartimento di Fisica, Università di Palermo, Viale delle Scienze, Edificio 18, I-90128, Palermo, Italy,

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Identyfikatory

DOI

10.2478/s11534-012-0016-0