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SUMMARY:Role of chemical and hydrodynamic interactions in determining the 
 phase separation of active colloids - Rajesh Singh\, DAMTP
DTSTART:20181113T130000Z
DTEND:20181113T140000Z
UID:TALK111322@talks.cam.ac.uk
CONTACT:Etienne Fodor
DESCRIPTION:Dynamic clusters of active colloids\, at a plane wall\, have b
 een reported in recent experiments. Attractive hydrodynamic forces are kno
 wns to cause the aggregation of active colloids at a plane wall\, while th
 e interplay of hydrodynamic and chemical field is not yet understood.\n\nI
 n this talk\, we explain the role of chemical and hydrodynamic interaction
  in determining the emergent behavior in a suspension of active colloids. 
 To this end\, we derive the expression for the chemohydrodynamic force per
  unit area using the boundary integral formulation for Laplace and Stokes 
 equation. We apply the formalism to rationalize the experiments and derive
  testable predictions.
LOCATION:MR11\, CMS
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