Self-Sustained Density Oscillations of Swimming Bacteria Confined in Microchambers
Condensed Matter journal club
Self-Sustained Density Oscillations of Swimming Bacteria Confined in Microchambers
- Event time: 11:30am
- Event date: 4th March 2016
- Speaker: Clemence Devailly (Formerly School of Physics & Astronomy, University of Edinburgh)
- Location: Room 2511, James Clerk Maxwell Building (JCMB) James Clerk Maxwell Building Peter Guthrie Tait Road Edinburgh EH9 3FD GB
Event details
Abstract
We numerically study the dynamics of run-and-tumble particles confined in two chambers connected by thin channels. Two dominant dynamical behaviors emerge: (i) an oscillatory pumping state, in which particles periodically fill the two vessels, and (ii) a circulating flow state, dynamically maintaining a near constant population level in the containers when connected by two channels. We demonstrate that the oscillatory behavior arises from the combination of a narrow channel, preventing bacteria reorientation, and a density-dependent motility inside the chambers.PRL 115 article 188303 (2015)
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Authors
M. Paoluzzi, R. Di Leonardo, L. Angelani
About Condensed Matter journal club
Given the diversity of research in the CM group, chosen topics vary widely. We tend to stick to high-impact journals - Nature, Science, PNAS and PRL have been popular - but this is not prescriptive..