Speaker
Tapio Ala-Nissilä
(Aalto and Loughborough University)
Description
The translocation dynamics of polymers though nanopores
driven by external fields is a far-from-equilibrium process,
which can be understood based on the tension propagation
(TP) theory of Sakaue [1]. In particular, the Brownian
Dynamics TP theory within the iso-flux (IFTP) assumption [2]
allows a self-consistent derivation of analytic equations of
motion for the dynamics, including an explicit form for the
chain length dependence of the average translocation time
[3]. In this talk I will discuss various applications of the
IFTP theory to translocation dynamics of semi-flexible [4]
and end-pulled polymer chains [5].
1. T. Sakaue, Phys. Rev. E 76, 021803 (2007).
2. P. Rowghanian and A. Y. Grosberg, J. Phys. Chem. B 115,
14127 (2011).
3. J. Sarabadani, T. Ikonen and T. Ala-Nissila, J. Chem.
Phys. 141, 214907 (2014)
4. J. Sarabadani, Timo Ikonen, Harri Mökkönen, Tapio
Ala-Nissila, Spencer Carson, and Meni Wanunu, Sci. Reps. 7,
7423 (2017).
5. J. Sarabadani, B. Ghosh, S. Chaudhury, and T.
Ala-Nissila, EPL 120, 38004 (2017).
