Energy-driven asymmetric partitioning of a semiflexible polymer between interconnected cavities
(2008) In The Journal of Physical Chemistry Part B 112(30). p.8923-8927- Abstract
- The distribution of a semiflexible chain in the volume of two interconnected spherical cavities of equal size has been investigated by using Monte Carlo simulations. The chain possessed an extension exceeding that of the cavity, leading to large probabilities of translocated states despite the entropic penalty of passing the narrow passage. Furthermore, an asymmetric state with unequal subchain lengths in the two cavities was more favorable than the symmetric state. The preference for the asymmetric state is driven by the bending energy. Basically, in the symmetric state both subchains are forced to be bent, whereas in the asymmetric case only one of the subchains must bend, leading to an overall smaller bending penalty and overall smaller... (More)
- The distribution of a semiflexible chain in the volume of two interconnected spherical cavities of equal size has been investigated by using Monte Carlo simulations. The chain possessed an extension exceeding that of the cavity, leading to large probabilities of translocated states despite the entropic penalty of passing the narrow passage. Furthermore, an asymmetric state with unequal subchain lengths in the two cavities was more favorable than the symmetric state. The preference for the asymmetric state is driven by the bending energy. Basically, in the symmetric state both subchains are forced to be bent, whereas in the asymmetric case only one of the subchains must bend, leading to an overall smaller bending penalty and overall smaller free energy of the asymmetric state. These results are in contrast to the entropy-controlled partitioning of polymers into confinement and the symmetric translocation state appearing for flexible polymers. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1253658
- author
- Cifra, Peter ; Linse, Per LU and Nies, Erik
- organization
- publishing date
- 2008
- type
- Contribution to journal
- publication status
- published
- subject
- in
- The Journal of Physical Chemistry Part B
- volume
- 112
- issue
- 30
- pages
- 8923 - 8927
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- wos:000257926800013
- scopus:49349116518
- pmid:18597516
- ISSN
- 1520-5207
- DOI
- 10.1021/jp801782p
- language
- English
- LU publication?
- yes
- id
- 9cf47e0f-abb9-473a-b24a-b7038bd7bf64 (old id 1253658)
- date added to LUP
- 2016-04-01 12:51:24
- date last changed
- 2022-01-27 08:01:29
@article{9cf47e0f-abb9-473a-b24a-b7038bd7bf64,
abstract = {{The distribution of a semiflexible chain in the volume of two interconnected spherical cavities of equal size has been investigated by using Monte Carlo simulations. The chain possessed an extension exceeding that of the cavity, leading to large probabilities of translocated states despite the entropic penalty of passing the narrow passage. Furthermore, an asymmetric state with unequal subchain lengths in the two cavities was more favorable than the symmetric state. The preference for the asymmetric state is driven by the bending energy. Basically, in the symmetric state both subchains are forced to be bent, whereas in the asymmetric case only one of the subchains must bend, leading to an overall smaller bending penalty and overall smaller free energy of the asymmetric state. These results are in contrast to the entropy-controlled partitioning of polymers into confinement and the symmetric translocation state appearing for flexible polymers.}},
author = {{Cifra, Peter and Linse, Per and Nies, Erik}},
issn = {{1520-5207}},
language = {{eng}},
number = {{30}},
pages = {{8923--8927}},
publisher = {{The American Chemical Society (ACS)}},
series = {{The Journal of Physical Chemistry Part B}},
title = {{Energy-driven asymmetric partitioning of a semiflexible polymer between interconnected cavities}},
url = {{http://dx.doi.org/10.1021/jp801782p}},
doi = {{10.1021/jp801782p}},
volume = {{112}},
year = {{2008}},
}