Nano Self Assembly

Nanotechnology must develop new tools that operate at a level where little manipulation by humans has ever been possible. Self assembly shows that complex structures can be created from simple rules and actions. By combining these two disciplines, it is becoming possible to build the tools that nanotechnology needs to move forward.

World first to provide building blocks for new nano devices – [nottingham.ac.uk]

A natural biological process known as ‘self-assembly’ meant that once the scientists introduced other molecules on to a surface their host then spontaneously arranged them into a rational 3-D structure.

Professor Neil Champness said: “It is the molecular equivalent of throwing a pile of bricks up into the air and then as they come down again they spontaneously build a house.

“Until now this has only been achievable in 2-D, so to continue the analogy the molecular ‘bricks’ would only form a path or a patio but our breakthrough now means that we can start to build in the third dimension. It’s a significant step forward to nanotechnology.”

Self-assembly of nano-rotors – [mytum.de]

Scientists from the Technische Universitaet Muenchen (TUM) have managed to direct the self-assembly of rod-shaped molecules into rotors only few nanometers in size. The tiny systems serve the study of forces that act on molecules on surfaces and in cage-like structures. Their findings are published in the current online issue of the Proceedings of the National Academy of Sciences (USA).

Berkeley Researchers Find New Route to Nano Self-Assembly – [lbl.gov]

By adding specific types of small molecules to mixtures of nanoparticles and polymers, the researchers are able to direct the self-assembly of the nanoparticles into arrays of one, two and even three dimensions with no chemical modification of either the nanoparticles or the block copolymers. In addition, the application of external stimuli, such as light and/or heat, can be used to further direct the assemblies of nanoparticles for even finer and more complex structural details.

SEE ALSO:
Self Assembly
Self Organizing
Cellular Automata
Swarm Intelligence
Feynman Path
Center for Bits and Atoms

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