Critical Torque for Kink Formation in Double-Stranded DNA

Critical Torque for Kink Formation in Double-Stranded DNA

We measure the bending energy of double-stranded DNA in the nonlinear (sharply bent) regime. The measurements are obtained from the melting curves of stressed DNA ring molecules. The nonlinear elastic behavior is captured by a single parameter: the critical torque τ_{c} at which the molecule develop...

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Bibliographic Details
Main Authors: Hao Qu, Yong Wang, Chiao-Yu Tseng, Giovanni Zocchi
Format: Article
Language:English
Published: American Physical Society 2011-11-01
Series:Physical Review X
Online Access:http://doi.org/10.1103/PhysRevX.1.021008

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