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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 46: Complex Fluids and Soft Matter (joint session DY/CPP)

CPP 46.13: Vortrag

Dienstag, 17. März 2020, 12:45–13:00, ZEU 160

Tactoids, membranes and fribrils – finite assemblies of rod-like particles — •Anja Kuhnhold, Nils Göth, Nadja Helmer, Victor Tänzel, and Tanja Schilling — Institute of Physics, Albert-Ludwigs-University Freiburg, Germany

Systems composed of rod-like particles and spherical depleting agents show a variety of self-assembled shapes and structures. We discuss a few of them and present corresponding Monte Carlo simulation results. The model system ingredients are hard spherocylinders as rod-like component and implicit Asakura-Oosawa spheres as depletants. In addition we study the effect of a chiral pair interaction between the rods.

This work got inspired by experiments using viruses as rod-like particles and polymer coils as depleting agents, see e.g. [1,2]. The monodispersity of viruses makes them a nice model system to compare simulations to. Beyond the comparison simulation results can be used to direct the self-assembly for specific structure-function relationships, e.g. templating or sensing.

[1] T. Gibaud, J. Phys.: Condens. Matter 29, 493003 (2017).

[2] B. Sung et al., Soft Matter 15, 9520 (2019).