Virtual Seminar"Orientational dynamics of Brownian elongated and chiral particles in microchannel flow"Andreas Zöttl

Micro/Bio/Nanofluidics (Shen) Unit would like to invite you to the virtual seminar by Dr. Andreas Zöttl  on March 10th (Wednesday).
 
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Date: Wednesday, March 10th, 2021
Time: 16:30-17:30
**Zoom session
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*Zoom information

Topic: Zottl's zoom seminar
Time: Mar 10, 2021 04:30 PM Osaka, Sapporo, Tokyo

Join Zoom Meeting
https://oist.zoom.us/j/92377948359?pwd=SVpTWGFwQjhRclYycVdXTXVBR080dz09

Meeting ID: 923 7794 8359
Passcode: 366669

Speaker:

Dr. Andreas Zöttl
Technische Universität Wien

Title:

Orientational dynamics of Brownian elongated and chiral particles in microchannel flow

Abstract:

Understanding the rotational dynamics of non-spherical microscopic particles in microchannel flow is nontrivial due to the interplay of rotational Brownian motion and orientation-dependent response to shear. We will first discuss how the dynamics of Brownian rods deviates from the classical non-Brownian Jefferey dynamics, and how the orientational persistence can be quantified. Furthermore, we will show how chiral elongated particles break the left-right orientational symmetry in the channel and discuss recent experimental and theoretical investigations on flowing micro-printed helices attached to a spherical head. Finally we will consider the consequence on active particles such as swimming E coli bacteria in bulk and in the presence of walls.

Host:

Prof. Amy Shen