Microscopic scaffolding to house the tiny components of nanotech devices could be built from RNA, the same substance that shuttles messages around a cells nucleus, reports a Purdue University research group.
By encouraging ribonucleic acid (RNA) molecules to self-assemble into 3-D shapes resembling spirals, triangles, rods and hairpins, the group has found what could be a method of constructing lattices on which to build complex microscopic machines. From such RNA blocks, the group has already constructed arrays that are several micrometers in diameter - still microscopically small, but exciting because manipulating controllable structures of this size from nanoparticles is one of nanotechnologys main goals.
"Our work shows that we can control the construction of three-dimensional arrays made from RNA blocks of different shapes and sizes," said Peixuan Guo, who is a professor of molecular virology in Purdues School of Veterinary Medicine. "With further research, RNA could form the superstructures for tomorrows nanomachines."
22.02.2018 | Albert-Ludwigs-Universität Freiburg im Breisgau
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Scientists from the University of Zurich have succeeded for the first time in tracking individual stem cells and their neuronal progeny over months within the intact adult brain. This study sheds light on how new neurons are produced throughout life.
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