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@ARTICLE{Kang:891612,
author = {Kang, Kyongok},
title = {{E}quilibrium phase diagram and thermal responses of
charged {DNA}-virus rod-suspensions at low ionic strengths},
journal = {Scientific reports},
volume = {11},
number = {1},
issn = {2045-2322},
address = {[London]},
publisher = {Macmillan Publishers Limited, part of Springer Nature},
reportid = {FZJ-2021-01623},
pages = {3472},
year = {2021},
abstract = {The collective behavior of DNA is important for exploring
new types of bacteria in the means of detection, which is
greatly interested in the understanding of interactions
between DNAs in living systems. How they self-organize
themselves is a physical common phenomenon for broad ranges
of thermodynamic systems. In this work, the equilibrium
phase diagrams of charged chiral rods (fd viruses) at low
ionic strengths (below a few mM) are provided to demonstrate
both replicas of (or self-organized) twist orders and
replica symmetry breaking near high concentration
glass-states. By varying the ionic strengths, it appears
that a critical ionic strength is obtained below 1–2 mM
salt, where the twist and freezing of nematic domains
diverge. Also, the microscopic relaxation is revealed by the
ionic strength-dependent effective Debye screening length.
At a fixed low ionic strength, the local orientations of
twist are shown by two different length scales of optical
pitch, in the chiral-nematic N* phase and the helical
domains HD, for low and high concentration, respectively.
RSB occurs in several cases of crossing phase boundary lines
in the equilibrium phase diagram of DNA-rod concentration
and ionic strength, including long-time kinetic arrests in
the presence of twist orders. The different pathways of PATH
I, II and III are due to many-body effects of randomized
orientations for charged fd rods undergoing long-range
electrostatic interactions in bulk elastic medium. In
addition, the thermal stability are shown for chiral pitches
of the N* phase and the abnormal cooling process of a
specific heat in a structural glass. Here, the
concentration-driven twist-effects of charged DNA rods are
explored using various experimental methods involving
image-time correlation, microscopic dynamics in small angle
dynamic light scattering, optical activity in second
harmonic generation, and differential scanning calorimetry
for the glass state.},
cin = {IBI-4},
ddc = {600},
cid = {I:(DE-Juel1)IBI-4-20200312},
pnm = {524 - Molecular and Cellular Information Processing
(POF4-524)},
pid = {G:(DE-HGF)POF4-524},
typ = {PUB:(DE-HGF)16},
pubmed = {33568703},
UT = {WOS:000684767800002},
doi = {10.1038/s41598-021-82653-y},
url = {https://juser.fz-juelich.de/record/891612},
}