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On the confinement of semiflexible chains under torsion
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View: Figures


Image of FIG. 1.
FIG. 1.

Flow of the roots in the complex plane under increasing torsion. The size of the arrows indicates the speed with which the roots flow as explained in the text.

Image of FIG. 2.
FIG. 2.

The local relative extension for DNA in a confined environment, producing a standard deviation up to 8 nm with a range of torques applied along the backbone. The persistence lengths were chosen to be P b = 50 nm and P c = 100 nm.

Image of FIG. 3.
FIG. 3.

The squeezing out of thermal writhe for DNA by anisotropy for 3 different torques while keeping the influence of bending modes constant. The elastic moduli are chosen as in Fig. 2 .

Image of FIG. 4.
FIG. 4.

Two hairpins forming a planar loop of writhe ≃ 1.

Image of FIG. 5.
FIG. 5.

Extension of a 60 μm DNA chain in square nanochannels with widths from 30 to 450 nm, without torque and with torques of 2 and 4 pNnm (τ = 0.5, 1), the dots are experimental data from Ref. 4 .


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: On the confinement of semiflexible chains under torsion