Stepwise conformation transitions for a semi-stiff ring polymer confined in a conical trap induced by the increasing external field or by cone's opening angle variation
Аннотация
In this paper a stepwise compaction process of a ring semi-stiff polymer chain placed in a 3d conical nano-cavity and being under the action of the increasing external field is studied. Compaction from a circle like shape to several toroidal-like loops for a three-dimensional system was observed. The thermodynamic stability of these toroidal-like structures was investigated by observing a hysteresis of the compaction extension curves. This study extends our previous work [1] with investigation of the effect of the cone opening angle variation on the distinct shape transitions.
Ключевые слова
Об авторах
A. Siretskiy
Uppsala University
Швеция
Швеция
C. Elvingson
Uppsala University
Швеция
Швеция
P. Vorontsov-Velyaminov
Saint Petersburg University
Россия
Россия
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Рецензия
Для цитирования:
, , . Наносистемы: физика, химия, математика. 2013;4(2):225-235.
For citation:
Siretskiy A., Elvingson C., Vorontsov-Velyaminov P. Stepwise conformation transitions for a semi-stiff ring polymer confined in a conical trap induced by the increasing external field or by cone's opening angle variation. Nanosystems: Physics, Chemistry, Mathematics. 2013;4(2):225-235.
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