5 papers · 1 filter
Apparent Persistence Length Renormalization of Bent DNA
Igor M. Kulic, H. Mohrbach, V. Lobaskin +2
We derive the single molecule equation of state (force-extension relation) for DNA molecules bearing sliding loops and deflection defects. Analytical results are obtained in the la…
Twirling DNA Rings - Swimming Nanomotors Ready for a Kickstart
Igor M. Kulic, Rochish Thaokar, Helmut Schiessel
We propose a rotary DNA nanomachine that shows a continuous rotation with a frequency of 10^2 -10^4 Hz. This motor consists of a DNA ring whose elastic features are tuned such that…
The physics of chromatin
Helmut Schiessel
Recent progress has been made in the understanding of the physical properties of chromatin -- the dense complex of DNA and histone proteins that occupies the nuclei of plant and an…
Chromatin dynamics: Nucleosomes go mobile through twist defects
I. M. Kulic, H. Schiessel
We study the spontaneous ''sliding'' of histone spools (nucleosomes) along DNA as a result of thermally activated single base pair twist defects. To this end we map the system onto…
Where the linearized Poisson-Boltzmann cell model fails: (II) the planar case as a prototype study
M. N. Tamashiro, H. Schiessel
The classical problem of two uniformly charged infinite planes in electrochemical equilibrium with an infinite monovalent salt reservoir is solved exactly at the mean-field nonline…