Kirsty Wan -- Distinct gaits of self-propulsion in microswimmers
|Starts:||13:00 27 Apr 2022|
|Ends:||14:00 27 Apr 2022|
|What is it:||Seminar|
|Organiser:||Department of Mathematics|
|Who is it for:||University staff, External researchers, Current University students|
Join us for this seminar by Kirsty Wan (Exeter) as part of the North West Seminar Series in Mathematical Biology and Data Sciences. Details of the full series can be found here https://www.cms.livjm.ac.uk/APMSeminar/
The talk will be hosted in person at the University of Liverpool and via zoom, please contact email@example.com or B.Vasiev@liverpool.ac.uk for the zoom link, or sign up to the mailing list.
Abstract: Cilia are ubiquitous, hair-like protrusions attached to cells. Interactions between cilia and ciliated tissues mediate a variety of physiological flows that may be external (directed outside of the organism), or internal (to facilitate internal processes such as feeding or mucociliary clearance). Whenever multiple cilia exist in close proximity they will invariably interact, leading to the emergence of many types of local and global coordination patterns. Often, the mechanism of this interaction or coupling is mysterious and highly system-dependent. Adjacent cilia can communicate physically through the fluid, but they can also do so via elastic or cytoskeletal linkages through the cell or tissue surface. In this talk we will consider the strategies and consequences of distinct modes of ciliary coordination and propulsion in diverse organisms ranging from single-celled eukaryotes (protists), to the ciliated larvae of marine invertebrates. We will introduce different model systems in which groups of cilia can move completely synchronously, maintain specific synchronization patterns, or else beat metachronously along topologically interesting structures. We will also discuss how ciliary arrays select different modes of synchrony or metachrony, transitioning stochastically between order and disorder, and the implications of this for whole-organism self-propulsion and navigation in the vast depths of the ocean.
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Role: Senior Lecturer
Organisation: University of Exeter
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