Abstract
We provide a unified theory for the high force entropic elasticity of biopolymers solely in terms of the persistence length, ξ(p) , and the monomer spacing, a. When the force f>ℱ (h) ~ k(B)Tξ(p) /a(2) the biopolymers behave as freely jointed chains (FJCs) while in the range ℱ (l) ~ k(B)T/ξ(p)