Authors
C. Battle
B. van den Broek
M.C. Noom
J. van Mameren
G.J.L. Wuite
F.C. MacKintosh
Date (dd-mm-yyyy)
2009
Title
Unraveling DNA tori under tension
Journal
Physical Review E
Volume
80
Publication Year
2009
Issue number
3
Document type
Article
Abstract
Motivated by recent experiments, we develop a model for DNA toroids under external tension. We find that tori are the equilibrium states for our model up to a critical tension, above which they become only metastable. Above this tension, we find a cascade of transitions between discrete toroid states that successively lower the winding number, until the ground state (rod) is reached. In this process, this model predicts a nearly constant force plateau as a function of extension, in agreement with experiment.
URL
go to publisher's site
Permalink
https://hdl.handle.net/11245/1.349747