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Berlin 2018 – scientific programme

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DY: Fachverband Dynamik und Statistische Physik

DY 38: Modeling and Simulation of Soft Matter II (joint session CPP/DY)

DY 38.2: Talk

Wednesday, March 14, 2018, 10:00–10:15, C 230

Studying Polymer-induced Depletion Effects via Grid-based Simulations — •Qiyun Tang and Marcus Müller — Universität Göttingen, Institute für Theoretische Physik, Friedrich-Hund- Platz 1, 37077 Göttingen, Germany

Recently we found that our modified grid-based coarse-grained simulations could be employed to study the polymer induced depletion effects between nanoparticles in the nanoparticle/protein limit. By analysing the radial distribution function of nanoparticles from simulations, we systematically study the influence of polymer density and also the nanoparticle density on these depletion effects. Results show that in the semidilute region of polymer solution, the contact depletion potential is gradually reduced by increasing nanoparticle's concentration. Similar behavior is also observed in the polymer melt. The simulation results are also compared to the theories, and are consistent with the theoretical prediction in the dilute polymer solutions.

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