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Ring polymers : threadings, knot electrophoresis and topological glasses
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Michieletto, Davide, Marenduzzo, Davide, Orlandini, Enzo and Turner, Matthew S. (2017) Ring polymers : threadings, knot electrophoresis and topological glasses. Polymers, 9 (8). 349. doi:10.3390/polym9080349
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Official URL: http://dx.doi.org/10.3390/polym9080349
Abstract
Elucidating the physics of a concentrated suspension of ring polymers, or of an ensemble of ring polymers in a complex environment, is an important outstanding question in polymer physics. Many of the characteristic features of these systems arise due to topological interactions between polymers, or between the polymers and the environment, and it is often challenging to describe this quantitatively. Here we review recent research which suggests that a key role is played by inter-ring threadings (or penetrations), which become more abundant as the ring size increases. As we discuss, the physical consequences of such threadings are far-reaching: for instance, they lead to a topologically-driven glassy behaviour of ring polymer melts under pinning perturbations, while they can also account for the shape of experimentally observed patterns in two-dimensional gel electrophoresis of DNA knots.
| Item Type: | Journal Article | ||||||
|---|---|---|---|---|---|---|---|
| Subjects: | Q Science > QC Physics | ||||||
| Divisions: | Faculty of Science > Physics | ||||||
| SWORD Depositor: | Library Publications Router | ||||||
| Library of Congress Subject Headings (LCSH): | Polymers, Polymerization, Ring-opening polymerization, Electrophoresis, DNA topoisomerases | ||||||
| Journal or Publication Title: | Polymers | ||||||
| Publisher: | MDPI | ||||||
| ISSN: | 2073-4360 | ||||||
| Official Date: | 8 August 2017 | ||||||
| Dates: |
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| Volume: | 9 | ||||||
| Number: | 8 | ||||||
| Article Number: | 349 | ||||||
| DOI: | 10.3390/polym9080349 | ||||||
| Status: | Peer Reviewed | ||||||
| Publication Status: | Published | ||||||
| Access rights to Published version: | Open Access | ||||||
| RIOXX Funder/Project Grant: |
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