Multiscale modeling of biopolymer translocation through a nanopore

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Abstract

We employ a multiscale approach to model the translocation of biopolymers through nanometer size pores. Our computational scheme combines microscopic Langevin molecular dynamics (MD) with a mesoscopic lattice Boltzmann (LB) method for the solvent dynamics, explicitly taking into account the interactions of the molecule with the surrounding fluid. Both dynamical and statistical aspects of the translocation process were investigated, by simulating polymers of various initial configurations and lengths. For a representative molecule size, we explore the effects of important parameters that enter in the simulation, paying particular attention to the strength of the molecule-solvent coupling and of the external electric field which drives the translocation process. Finally, we explore the connection between the generic polymers modeled in the simulation and DNA, for which interesting recent experimental results are available. © Springer-Verlag Berlin Heidelberg 2007.

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Fyta, M., Melchionna, S., Kaxiras, E., & Succi, S. (2007). Multiscale modeling of biopolymer translocation through a nanopore. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 4487 LNCS, pp. 786–793). Springer Verlag. https://doi.org/10.1007/978-3-540-72584-8_104

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