BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Dynamics and statistics of micro-swimmers in flowing films - Arnol
 d Mathijssen (University of Oxford)
DTSTART:20160127T130000Z
DTEND:20160127T140000Z
UID:TALK62993@talks.cam.ac.uk
CONTACT:Julius Bier Kirkegaard
DESCRIPTION:Biological flows over surfaces and interfaces can result in ac
 cumulation hotspots or depleted voids of micro-organisms in natural enviro
 nments. Apprehending the mechanisms that lead to such distributions is ess
 ential for understanding biofilm initiation. Using a systematic framework 
 we resolve the dynamics and statistics of swimming microbes within flowing
  films\, considering the impact of confinement through steric and hydrodyn
 amic interactions\, flow\, and motility\, along with Brownian and run-tumb
 le fluctuations. Micro-swimmers can be peeled off the solid wall above a c
 ritical flow strength. However\, the interplay of flow and fluctuations ca
 uses organisms to migrate back towards the wall above a secondary critical
  value. Hence\, faster flows may not always be the most efficacious strate
 gy to discourage biofilm initiation. Moreover\, we find run-tumble dynamic
 s commonly used by flagellated microbes to be an intrinsically more succes
 sful strategy to escape from boundaries than equivalent levels of enhanced
  Brownian noise in ciliated organisms. 
LOCATION:MR11\, Centre for Mathematical Sciences\, Wilberforce Road\, Camb
 ridge
END:VEVENT
END:VCALENDAR