2007/08/08 by Kaifu Luo, Tapio Ala-Nissilä, Tapio Ala-Nissila +3 · 4 citations
Chemistry · Engineering · Mathematics · Physics and Astronomy · #Attraction #Chemical physics #Chemistry #Chromosomal translocation #Exponential function #Fuel Cells and Related Materials #Gaussian #Ion-surface interactions and analysis #Langevin dynamics #Langevin equation #Materials science #Mathematics #Molecular dynamics #Nanopore and Nanochannel Transport Studies #Nuclear magnetic resonance #Physics #Polymer #Quantum mechanics #Residence time (fluid dynamics) #Statistical physics #cond-mat.soft #cond-mat.stat-mech
paper · pdf · doi:10.1103/physrevlett.99.148102
published as Phys. Rev. Lett. 99, 148102 (2007) · 4 pages, 5 figures, Submitted to Phys. Rev. Lett
arxiv created 2007/08/08 · openalex publication_date 2007/10/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We investigate the influence of polymer-pore interactions on the translocation dynamics using Langevin dynamics simulations. An attractive interaction can greatly improve the translocation probability. At the same time, it also increases the translocation time slowly for a weak attraction while an exponential dependence is observed for a strong attraction. For fixed driving force and chain length the histogram of translocation time has a transition from Gaussian distribution to long-tailed distribution with increasing attraction. Under a weak driving force and a strong attractive force, both the translocation time and the residence time in the pore show a nonmonotonic behavior as a function of the chain length. Our simulations results are in good agreement with recent experimental data.