Frontiers of Physics

, 12:128301 | Cite as

Translocation time of a polymer chain through an energy gradient nanopore

Research article
Part of the following topical collections:
  1. Soft-Matter Physics and Complex Systems


The translocation time of a polymer chain through an interaction energy gradient nanopore was studied by Monte Carlo simulations and the Fokker–Planck equation with double-absorbing boundary conditions. Both the simulation and calculation revealed three different behaviors for polymer translocation. These behaviors can be explained qualitatively from free-energy landscapes obtained for polymer translocation at different parameters. Results show that the translocation time of a polymer chain through a nanopore can be tuned by suitably designing the interaction energy gradient.


polymer chain translocation time nanopore Monte Carlo simulation Fokker–Planck equation 

PACS numbers

83.80.Sg 87.15.A- 87.15.H- 



This work was supported by the National Natural Science Foundation of China (Grant Nos. 11674277 and 11374255) and the Zhejiang Provincial Natural Science Foundation (Grant No. LQ14A040004).


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Copyright information

© Higher Education Press and Springer-Verlag GmbH Germany 2017

Authors and Affiliations

  • Meng-Bo Luo
    • 1
  • Shuang Zhang
    • 1
    • 2
  • Fan Wu
    • 1
  • Li-Zhen Sun
    • 3
  1. 1.Department of PhysicsZhejiang UniversityHangzhouChina
  2. 2.College of ScienceQinzhou UniversityQinzhouChina
  3. 3.Department of Applied PhysicsZhejiang University of TechnologyHangzhouChina

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