Regensburg 2019 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 17: Poster Session I
CPP 17.2: Poster
Montag, 1. April 2019, 17:30–19:30, Poster B1
Fabrication of ellipsoidal microswimmers with controllable tip shape — •Yara Alsaadawi1, Fernando Vazquez Luna2, Anna Eichler-Volf1, Martin Steinhart2, and Artur Erbe1 — 1Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf, 01328 Dresden, Germany — 2Institute of Chemistry of New Materials and Center of Physics and Chemistry of New Materials, Universität Osnabrück, 49076 Osnabrück, Germany
Microswimmers are objects capable of converting applied energy into active motion, resulting in its propulsion in a medium. The shape and chemical compound of the microswimmer strongly influence its propulsion properties. Here we investigate a template-based approach for fabrication of particles with controlled composition, size, and shape, which can be used as fundamental units for the preparation of microswimmers. Polystyrene nanorods with different configurations of the tip shape were fabricated with an aspect ratio of 10:1. The ratio of length-to-width (i.e. aspect ratio) can be easily modified by controlling the surface properties of the template. The wettability transition of polystyrene was used to manipulate the morphology and entrapment of polymer nanostructures.