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SUMMARY:Predicting and designing the self-assembly of colloidal particles:
  a computer game - Professor Marjolein Dijkstra\, Utrecht University
DTSTART:20171020T120000Z
DTEND:20171020T130000Z
UID:TALK84051@talks.cam.ac.uk
CONTACT:Sharon Connor
DESCRIPTION:The ability of atomic\, colloidal\, and nanoparticles to self-
 organize into highly ordered crystalline structures makes the prediction o
 f crystal structures in these systems an important challenge for science. 
 The question itself is deceivingly simple: assuming that the underlying in
 teraction between constituent particles is known\, which crystal structure
 s are stable. In this talk\, I will describe a Monte Carlo simulation meth
 od [1] combined with a triangular tesselation method [2] to describe the s
 urface of arbitrarily shaped particles that can be employed to predict clo
 se-packed crystal structures in colloidal hard-particle systems. I will sh
 ow that particle shape alone can give rise to a wide variety of structures
  with unusual properties [3-7]\, e.g.\, photonic band gap structures or hi
 ghly diffusive crystals\, but combining the choice of particle shape with 
 external fields\, like confinement [4]\, can enlarge the number of possibl
 e structures even more.    \n \n 
LOCATION:Pfizer Lecture Theatre\, Department of Chemistry\, Lensfield Road
 \, Cambridge
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