Elasticity of strongly stretched ssDNA
arXiv:q-bio/0703027 · doi:10.1016/j.physa.2007.04.119
Abstract
We present a simple model which describes elastic response of single-stranded DNA (ssDNA) to stretching, including the regime of very high force (up to 1000 pN). ssDNA is modelled as a discreet persistent chain, whose ground state is a zigzag rather than a straight line configuration. This mimics the underlying molecular architecture and helps to explain the experimentally observed staturation of the stretching curve at very high force.
5 pages, 2 figures