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Dresden 2017 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 11: Modelling and Simulation of Soft Matter

CPP 11.7: Vortrag

Montag, 20. März 2017, 16:45–17:00, ZEU 255

The stretching behaviour of a single tethered polymer in pressure-driven flow — •Kai Szuttor1, Tamal Roy2, Steffen Hardt2, Christian Holm1, and Jens Smiatek11Institute for Computational Physics, Stuttgart, Germany — 2Centre of Smart Interfaces, Darmstadt, Germany

We incorporate mesoscopic molecular dynamics (MD) simulations to investigate the stretching behaviour of a tethered polymer in a confined geometry. In particular we are interested in the connection between fluid flow characteristics and the force on the polymer chain. In addition, the comparison to analytical predictions show that hydrodynamic interactions (HIs) are crucial for the observed stretching behaviour. However, the comparison also shows that the general scaling behaviour for the stretching is not strongly influenced by HIs. Simulation results agree with recent experimental results for λ-DNA stretching in micro scale channels.

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