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Professor Michael Cates FRS FRSE, Lucasian Professor of Mathematics, DAMTP
Monday 30 January 2017, 18:00-19:00
G I Taylor Lecture - Using light to orchestrate the assembly of self-propelled particles into microfluidic devices
- đ¤ Speaker: Professor Michael Cates FRS FRSE, Lucasian Professor of Mathematics, DAMTP
- đ Date & Time: Monday 30 January 2017, 18:00 - 19:00
- đ Venue: Bristol-Myers Squibb Lecture Theatre, Department of Chemistry
Abstract
Abstract: Many recent experiments address synthetic colloidal particles capable of self-propulsion in the presence of a fuel supply. Unlike passive Brownian motion which it superficially resembles, their active motion breaks time-reversal symmetry. This allows unusual physics to arise, such as a liquid-gas phase separation among particles with purely repulsive interactions. In several systems, the self-propulsion effect can be switched on and off using a light field. I will discuss how these elements might one day be harnessed to create self-rectifying microfluidic devices under optical control, and present ‘proof of concept’ simulations of the basic effect.
Series This talk is part of the Cambridge Philosophical Society series.
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