{"paper":{"title":"Theory of biopolymer stretching at high forces","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.soft"],"primary_cat":"cond-mat.stat-mech","authors_text":"D. Thirumalai, Ngo Minh Toan","submitted_at":"2009-09-09T21:19:34Z","abstract_excerpt":"We provide a unified theory for the high force elasticity of biopolymers solely in terms of the persistence length, $\\xi_p$, and the monomer spacing, $a$. When the force $f>\\fh \\sim k_BT\\xi_p/a^2$ the biopolymers behave as Freely Jointed Chains (FJCs) while in the range $\\fl \\sim k_BT/\\xi_p < f < \\fh$ the Worm-like Chain (WLC) is a better model. We show that $\\xi_p$ can be estimated from the force extension curve (FEC) at the extension $x\\approx 1/2$ (normalized by the contour length of the biopolymer). After validating the theory using simulations, we provide a quantitative analysis of the FE"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0909.1831","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}