Unzipping DNA by force: thermodynamics and finite size behaviour
arXiv:cond-mat/0511531 · doi:10.1088/0953-8984/18/14/S06
Abstract
We discuss the thermodynamic behaviour near the force induced unzipping transition of a double stranded DNA in two different ensembles. The Y-fork is identified as the coexisting phases in the fixed distance ensemble. From finite size scaling of thermodynamic quantities like the extensibility, the length of the unzipped segment of a Y-fork, the phase diagram can be recovered. We suggest that such procedures could be used to obtain the thermodynamic phase diagram from experiments on finite length DNA.
arXiv comment10 pages, accepted for publication in special issue of Journal of Physics: Condensed Matter
References in corpus (14)
- Pulling Pinned Polymers and Unzipping DNA
- A Measure of data-collapse for scaling
- Single Molecule Statistics and the Polynucleotide Unzipping Transition
- Dynamical scaling of the DNA unzipping transition
- Measurement of the Phase Diagram of DNA Unzipping in the Temperature- Force Plane
- Phase diagram of force-induced DNA unzipping in exactly solvable models
- Pulling a polymer out of a potential well and the mechanical unzipping of DNA
- Complete Phase Diagram of DNA Unzipping: Eye, Y-fork and triple point
- Mechanical denaturation of DNA: existence of a low temperature denaturation
- Melting and unzipping of DNA
- Force induced triple point for interacting polymers
- Helicase activity on DNA as a propagating front
- Helicase on DNA: A Phase coexistence based mechanism
- Unzipping an adsorbed polymer in a dirty or random environment
Cited by in corpus (10)
- Effects of Eye-phase in DNA unzipping
- Randomly forced DNA
- Unzipping DNA by a periodic force: Hysteresis loop area and its scaling
- Manipulating a single adsorbed DNA for a critical endpoint
- Can a double stranded DNA be unzipped by pulling a single strand?: Phases of adsorbed DNA
- Thermodynamic relations for DNA phase transitions
- Unzipping DNA by a periodic force: Hysteresis loops, Dynamical order parameter, Correlations and Equilibrium curves
- Hysteresis loop area scaling exponents in DNA unzipping by a periodic force: A Langevin dynamics simulation study
- DNA Unzipping Transition
- Critical behavior of interacting two-polymer system in a fractal solvent: an exact renormalization group approach