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SUMMARY:Conditions of hydrodynamic synchronization in models of beating ci
 lia - Cicuta\, P (University of Cambridge)
DTSTART:20130628T155000Z
DTEND:20130628T161500Z
UID:TALK45972@talks.cam.ac.uk
CONTACT:Mustapha Amrani
DESCRIPTION:Motile cilia are highly conserved structures in the evolution 
 of organisms\, generating the transport of fluid by periodic beating\, thr
 ough remarkably organized behavior in space and time. It is not known how 
 these spatiotemporal patterns emerge and what sets their properties. \n\nI
 ndividual cilia are nonequilibrium systems with many degrees of freedom. H
 owever\, their description can be represented by simpler effective force l
 aws that drive oscillations\, and paralleled with nonlinear phase oscillat
 ors studied in physics. \n\nHere I will describe synthetic model phase osc
 illators\, where colloidal particles are driven by optical traps. The comp
 lex structural details of the cilia are coarse-grained into the details of
  how the colloidal particles are driven. We explore experimentally two typ
 es of colloidal model\, finding in each case the conditions for optimal co
 upling. The applicability of this approach to biological data is illustrat
 ed by successfully mapping the behavior of cilia in the alga Chlamydomonas
  onto one of the coarse-grained models. \n\n\n
LOCATION:Seminar Room 1\, Newton Institute
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