Elasticity of strongly stretched ssDNA |
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Authors: | Alexei V. Tkachenko |
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Affiliation: | Department of Physics and Michigan Center for Theoretical Physics, University of Michigan, 450 Church Str., Ann Arbor, MI 48109, USA |
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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 discrete 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 saturation of the stretching curve at very high force. |
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Keywords: | DNA Elasticity |
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