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(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. Systems of mechanized and reactive droplets powered by multiresponsive surfactants,
Nature 2018. Authors: Zhijie Yang†, Jingjing Wei†, Yaroslav I. Sobolev, Bartosz Grzybowski DOI: 10.1038/nature25137
Newly developed hydrogel nanocomposite for the mass production of hydrogen
A research team led by Prof. HYEON Taeghwan at the Center for Nanoparticle Research within the Institute for Basic Science (IBS) in Seoul, South Korea has developed a new photocatalytic platform for the mass production of hydrogen. The group’s study on the photocatalytic platform led to the ... more
The structure of the smallest semiconductor was elucidated
A semiconductor is a material whose conductivity lies somewhere between that of a conductor and an insulator. This property allows semiconductors to serve as the base material for modern electronics and transistors. It is no understatement that the technological progress in the latter part ... more
Measuring the ‘wettability’ of graphene and other 2D materials
Wettability of the material is the ability of a liquid to maintain contact with a solid surface, and it is proportional to hydrophilicity and inversely proportional to hydrophobicity. It is one of the most important properties of a solid, and understanding the wettability of different subst ... more
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