Force induced stretched state: Effects of temperature

Abstract

A model of self avoiding walks with suitable constraint has been developed to study the effect of temperature on a single stranded DNA (ssDNA) in the constant force ensemble. Our exact calculations for small chains show that the extension (reaction co-ordinate) may increase or decrease with the temperature depending upon the applied force. The simple model developed here which incorporates semi-microscopic details of base direction provide an explanation of the force induced transitions in ssDNA as observed in experiments.

5 pages, 8 figures, RevTex 4

References in corpus (11)

• The Nonequilibrium Thermodynamics of Small Systems
• Single-molecule experiments in biological physics: methods and applications
• Pulling Pinned Polymers and Unzipping DNA
• Dynamical scaling of the DNA unzipping transition
• Measurement of the Phase Diagram of DNA Unzipping in the Temperature- Force Plane
• Stretching of a polymer below the Theta point
• Complete Phase Diagram of DNA Unzipping: Eye, Y-fork and triple point
• A simple and exactly solvable model for a semiflexible polymer chain interacting with a surface
• Does changing the pulling direction give better insight into biomolecules?
• Effects of Eye-phase in DNA unzipping
• Force induced conformational transition in a system of interacting stiff polymer: Application to unfolding

Cited by in corpus (7)

• Stretching Semiflexible Polymer Chains: Evidence for the Importance of Excluded Volume Effects from Monte Carlo Simulation
• Role of loop entropy in the force induced melting of DNA hairpin
• Theory for RNA folding, stretching, and melting including loops and salt
• Dynamical phase transition of a periodically driven DNA
• Pulling self-interacting polymers in two-dimensions
• Adsorption of Externally Stretched Two-Dimensional Flexible and Semi-flexible Polymers near an Attractive Wall
• Stretching self-interacting, partially directed, flexible and semi-flexible polymers by an external force