title: Micro-mechanical measurement of the torsional modulus of DNA.
abstract: The torsional modulus C of DNA is determined from the difference between the work of stretching a single overwound molecule and the work done in stretching one underwound by the same number of turns. The value obtained C/kBT = 86 +/- 10 nm is within the range (75 +/- 25 nm) estimated by more indirect methods.
authors.affiliation: LPS, ENS, UMR 8550 CNRS, associé aux Universités Paris VI, France.
authors.forename: T R
authors.initials: TR
authors.lastname: Strick
authors.forename: D
authors.initials: D
authors.lastname: Bensimon
authors.forename: V
authors.initials: V
authors.lastname: Croquette
mesh_terms: D001696:Biomechanical Phenomena; D004278:DNA, Superhelical / Q000737:chemistry*; D008280:Magnetics; D008958:Models, Molecular
chemical_list: D004278:DNA, Superhelical