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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:TALK85301@talks.cam.ac.uk
CONTACT:Lisa Masters
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 \nKey words: colloids\, self-assembly\, crys
 tal structures\, hard particles\, entropy\n \nReferences\n[1] L. Filion\, 
 M. Marechal\, B. van Oorschot\, D. Pelt\, F. Smallenburg\, and M. Dijkstra
 \, Physical Review Letters 103\, 188302 (2009).\n[2] J. de Graaf\, R. van 
 Roij and M. Dijkstra\, Physical Review Letters 107\, 155501 (2011).\n[3] A
 . P. Gantapara\, J. de Graaf\, R. van Roij\, and M. Dijkstra\, Physical Re
 view Letters 111\, 015501 (2013)\n[4] F. Smallenburg\, L. Filion\, M. Mare
 chal\, and M. Dijkstra\, Proceedings of the National Academy of Sciences 1
 09\, 17886 (2012).\n[5] K. Miszta\, J. de Graaf\, G. Bertoni\, D. Dorfs\, 
 R. Brescia\, S. Marras\, L. Ceseracciu\, R. Cingolani\, R. van Roij\, M. D
 ijkstra and L. Manna\, Nature Materials 10\, 872-876 (2011)\n[6] L. Filion
 \, M. Hermes\, R. Ni\, E. C. M. Vermolen\, A. Kuijk\, C. G. Christova\, J.
  C. P. Stiefelhagen\, T. Vissers\, A. van Blaaderen\, and M. Dijkstra\, Ph
 ysical Review Letters 107\, 168302 (2011).\n[7] S. Dussi and M. Dijkstra\,
  Nature Communications 7\, 11175 (2016).\n[8] B. de Nijs\, S. Dussi\, F. S
 mallenburg\, J.D. Meeldijk\, D.J. Groenendijk\, L. Filion\, A. Imhof\, A. 
 van Blaaderen\, and M. Dijkstra\, Nature Materials 14\, 56-60 (2015).
LOCATION:Department of Chemistry\, Cambridge\, Pfizer lecture theatre
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