Equilibrium structure and deformation response of 2D kinetoplast sheets
Equilibrium structure and deformation response of 2D kinetoplast sheets
复制标题
二维动体片的平衡结构和变形响应
DOI:
10.1073/pnas.1911088116
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发表时间:
2019
期刊:
影响因子:
--
通讯作者:
Doyle, Patrick S.
中科院分区:
文献类型:
--
作者:
Klotz, Alexander R.;Soh, Beatrice W.;Doyle, Patrick S.
The considerable interest in two-dimensional (2D) materials and complex molecular topologies calls for a robust experimental system for single-molecule studies. In this work, we study the equilibrium properties and deformation response of a complex DNA structure called a kinetoplast, a 2D network of thousands of linked rings akin to molecular chainmail. Examined in good solvent conditions, kinetoplasts appear as a wrinkled hemispherical sheet. The conformation of each kinetoplast is dictated by its network topology, giving it a unique shape, which undergoes small-amplitude thermal fluctuations at subsecond timescales, with a wide separation between fluctuation and diffusion timescales. They deform elastically when weakly confined and swell to their equilibrium dimensions when the confinement is released. We hope that, in the same way that linear DNA became a canonical model system on the first investigations of its polymer-like behavior, kinetoplasts can serve that role for 2D and catenated polymer systems.
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DOI:
10.1088/1751-8121/aaf15f
发表时间:
2018-12
期刊:
Journal of Physics A: Mathematical and Theoretical
影响因子:
--
作者:
L. Ibrahim;P. Liu;M. Klingbeil;Y. Diao;J. Arsuaga
通讯作者:
L. Ibrahim;P. Liu;M. Klingbeil;Y. Diao;J. Arsuaga
DOI:
--
发表时间:
2011
期刊:
Physical review. E, Statistical, nonlinear, and soft matter physics
影响因子:
--
作者:
Hernan Zhou;Beatriz Burrola Gabilondo;W. Losert;W. van de Water
通讯作者:
W. van de Water
影响因子:
3.3
作者:
Charles M. Schroeder
通讯作者:
Charles M. Schroeder
影响因子:
2
作者:
D. Michieletto;D. Marenduzzo;E. Orlandini
通讯作者:
E. Orlandini
DOI:
10.1103/physreve.94.042603
发表时间:
2016
期刊:
Physical review. E
影响因子:
--
作者:
Alexander R. Klotz;H. D. de Haan;W. Reisner
通讯作者:
W. Reisner