Rouse model with internal friction: A coarse grained framework for single biopolymer dynamics

Macromolecules

Volumn 40, Issue 18, 2007, Pages 6770-6777

  Khatri, Bhavin S ^a,b   McLeish, Tom C B ^a  

^a UNIVERSITY OF LEEDS   (United Kingdom)

^b UNIVERSITY OF SURREY   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

ENERGY DISSIPATION; INTERNAL FRICTION; PERTURBATION TECHNIQUES; SOLVENTS;

GRAINED FRAMEWORK; ROUSE MODEL; SINGLE-MODE DUMBBELL;

BIOPOLYMERS;

EID: 34748919662     PISSN: 00249297     EISSN: None     Source Type: Journal    
DOI: 10.1021/ma071175x     Document Type: Article

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24. The fact that the relaxation time of the modes is independent of mode number is not in contradiction with the concept of the internal friction and hence dynamic flexibility of a mode decreasing with curvature. As was shown in ref 10, the microscopic internal friction constant is controlled by an average hopping time, which is in general distinct to the relaxation time.
25. 22 or the skin-effect in conductors, where an oscillating influence can only penetrate a certain distance, due to the finite time of diffusion.
26. This is also true for a Rouse chain (eq 22), however, in this idealized case the internal friction is zero and the internal properties of the chain cannot be probed.