title: Influence of polymer-pore interaction on the translocation of a polymer through a nanopore.
abstract: The translocation of a bond fluctuation polymer through an interacting nanopore is studied using dynamic Monte Carlo simulation. A driving force F is applied only for monomers inside the pore. The influence of polymer-pore interaction on the scaling relation τ~N(α) is studied for both unbiased and biased translocations, with τ the translocation time and N the polymer length. Results show that the exponent α is dependent on the polymer-pore interaction. For a noninteracting pore, we find α=2.48 for unbiased translocation and α=1.35 for strong biased translocation; for strong attraction, we find α=2.35 for unbiased translocation and α=1.22 for strong biased translocation. The unbiased translocation corresponds to the low-NF regime whereas the strong biased translocation corresponds to the high-NF regime.
authors.affiliation: Department of Physics, Zhejiang University, Hangzhou 310027, China. luomengbo@zju.edu.cn
authors.forename: Meng-Bo
authors.initials: MB
authors.lastname: Luo
authors.forename: Wei-Ping
authors.initials: WP
authors.lastname: Cao
mesh_terms: D055595:Mechanical Phenomena; D009010:Monte Carlo Method; D009038:Motion; D058608:Nanopores; D011108:Polymers / Q000737:chemistry*; D016062:Porosity
chemical_list: D011108:Polymers