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UID:20250811T183633EDT-1511PXVVgv@132.216.98.100
DTSTAMP:20250811T223633Z
DESCRIPTION:Abstract:\n\nColloids have been a rich system for exploring and
  understanding the emergent structures and behaviors of large collections 
 of simple particles. This is due to the experimentally accessible time and
  length scales for observing colloids as well as our ability to control in
 terparticle interactions. Furthermore\, applied electric and magnetic fiel
 ds allow for directed assembly as well as propulsion of colloids. When con
 fined at a surface\, colloids develop competing interactions that lead to 
 rich and unexpected collective structure and dynamics\, that moreover can 
 be predicted by theory and Monte Carlo Simulation (Maestas et al.\, ACS Na
 no 2021\, 15\, 2399).\n\nI present our studies combining experiments and m
 odeling of several types of self-assembled structures\, including 1) the s
 pontaneous formation of “colloidal molecules” and their reactions\, 2) for
 mation of regular and frustrated arrays of spheres and of dimers\, 3) spon
 taneous assembly and propulsion of chiral clusters and 4) the formation an
 d deformations of a new class of bilayer quasicrystals.\n\nThese mechanism
 s of directed assembly\, i.e. normal applied fields and asymmetric surface
  confinement\, are general and do not depend strongly on the chemical natu
 re of the colloids. It is hoped such approaches can be employed in a wide 
 range of material systems.\n\nBio:\n
DTSTART:20211019T170000Z
DTEND:20211019T183000Z
LOCATION:Room 112\, Maass Chemistry Building\, CA\, QC\, Montreal\, H3A 0B8
 \, 801 rue Sherbrooke Ouest
SUMMARY:Chemical Society Seminar: David T. Wu - From simplicity emerges com
 plexity: Field-directed assembly of structured 2d colloidal phases
URL:/chemistry/channels/event/chemical-society-seminar
 -david-t-wu-simplicity-emerges-complexity-field-directed-assembly-structur
 ed-333766
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