Relaxation of surface-tethered polymers under moderate confinement.
Relaxation of surface-tethered polymers under moderate confinement.
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适度约束下表面束缚聚合物的松弛
DOI:
10.1039/c8sm01246f
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发表时间:
2018
期刊:
影响因子:
3.4
通讯作者:
Steffen Hardt
中科院分区:
文献类型:
--
作者:
Johannes Hartmann;Tamal Roy;Kai Szuttor;Jens Smiatek;Christian Holm;Steffen Hardt
We study the relaxation of surface-tethered polymers in microchannels under moderate confinement (i.e. h ∼ Rg, where h is the channel height and Rg is the radius of gyration of the polymer) by experiments with fluorescence-marked DNA molecules and coupled lattice-Boltzmann/molecular dynamics simulations. The determined scaling exponent suggests that the relaxation is dominated by Zimm-dynamics with significant intra-chain hydrodynamic interactions. The relaxation of the DNA molecules is slower in shallower channels, indicating a pronounced effect of confinement on the longest relaxation time. An experimental correlation is obtained for the longest relaxation time as a function of the molecular contour length and the channel height. Good agreement between the experimental and the simulation results is found.
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DOI:
--
发表时间:
2012
期刊:
The European Physical Journal Special Topics
影响因子:
--
作者:
D. Roehm;A. Arnold
通讯作者:
A. Arnold
影响因子:
5.5
作者:
Balducci, Anthony;Mao, Pan;Doyle, Patrick S.
通讯作者:
Doyle, Patrick S.
影响因子:
56.9
作者:
Perkins, TT;Smith, DE;Chu, S
通讯作者:
Chu, S
影响因子:
3.8
作者:
D. Stigter
通讯作者:
D. Stigter
影响因子:
8.6
作者:
Balducci, A.;Hsieh, C. -C.;Doyle, P. S.
通讯作者:
Doyle, P. S.