Translocation paradox of a linear polymer chain in a semi-entangled semi-free space

In this paper, we introduce a special device, in which the topological rejection effect in the study of biomacromolecule translocation competes with the entropic tensile force. The expected results for the translocation of the polymer chain given by these two different theories do not coincide with...

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Bibliographic Details
Published in:Journal of polymer research 2021-05, Vol.28 (5), Article 188
Main Authors: Yu, Xu-Chen, Hou, Ji-Xuan
Format: Article
Language:English
Subjects:
Biophysics
Chains (polymeric)
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Computer simulation
Industrial Chemistry/Chemical Engineering
Original Paper
Paradoxes
Polymer Sciences
Polymers
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Summary:In this paper, we introduce a special device, in which the topological rejection effect in the study of biomacromolecule translocation competes with the entropic tensile force. The expected results for the translocation of the polymer chain given by these two different theories do not coincide with each other, so we call this problem the “translocation paradox”. The dynamics of the polymer chain and the preference translocation in such device are studied using computer simulation method. Surprisingly, these results do not completely satisfy all these hypothesis. We provide a plausible explanation which coincides our simulation results perfectly. Meanwhile, this explanation provides a possible solution to the design of translocation device in biophysics field.
ISSN:1022-9760
1572-8935
DOI:10.1007/s10965-021-02547-5