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Dresden 2017 – wissenschaftliches Programm

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BP: Fachverband Biologische Physik

BP 61: Topological Problems in the Physics of Polymers, Biopolymers and Fibers II (Joint Focus Session CPP/BP)

BP 61.1: Vortrag

Freitag, 24. März 2017, 10:15–10:30, ZEU 222

Mechanical properties of entwined knotted/unknotted DNA loops — •Saeed Najafi and Raffaello Potestio — MPIP, Mainz, Germany

Self-entanglement and knotting can play a crucial role in the mechanical and functional properties of bio-polymers such as DNA and RNA strands and fibers. By means of computer simulations of model DNA systems, we demonstrate that the crossing pattern of a braid of entwined DNA rings has a large impact on its structural and dynamical properties. In particular, we identify under which conditions the braid crossing pattern enforces a positive and stronger correlation between the entangled rings.

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