Regensburg 2019 – wissenschaftliches Programm
DY 61.7: Vortrag
Freitag, 5. April 2019, 11:45–12:00, H6
Aligning beads with boxing gloves — •Archit Bhatnagar1, Anatol Fritsch1, Matthäus Mittasch1, Michael Nestler2, Matthias Loidolt1, Axel Voigt2, and Moritz Kreysing1 — 1MPI of Cell Biology, Dresden — 2Department of Mathematics, TU Dresden
Recently we have described that we can move the cytoplasm of cells and developing embryos in a non-invasive manner. For this we made use of thermoviscous flows (1).
Here we ask the question if these long-ranged flow fields can in principle also be used for the precision alignment of colloids, an endeavor that seems as reasonable as trying to align small beads while wearing boxing gloves. Simulations, however, suggest that series of flow fields can be found to align multiple colloids at the same time, even if these particles are closely spaced.
We follow this strategy experimentally and will report the feasibility, precision limits due to the brownian motion of particles, and prospects for colloidal physics and applications in biology.
References: (1) Mittasch et al., " Non-invasive perturbations of intracellular flow reveal physical principles of cell organization", Nature Cell Biology 1 (2018)