Light-Induced Assembly of Droplets into a Hexagonal Cluster (VIDEO)
Caption
Video 1: www.youtube.com/watch?v=QYcg-lZdthY (0:00) Droplets coated with nanosurfactants are hit with a laser which clumps the droplets into a two-dimensional hexagonal structure and rotates them much like gears. (0:17) Droplets are randomly distributed and then a laser is turned on which attracts them together into a bilayer aggregate. Upon turning the laser off, the ordered structure disassembles until the light is reintroduced and a new ordered structure emerges. (2:17) The same principle is demonstrated with a much larger number of droplets
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