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Showing Spotlights 17 - 20 of 20 in category Self-Assembly and -Organization (newest first):

 

Towards multidimensional, multicomponent, and multifunctional nanomaterials

With the recent development in nanoscience and nanotechnology, a large variety of single-component nanomaterials (such as carbon nanotubes, nanoparticles, and quantum dots) and devices have been reported. There is now a pressing need to integrate multicomponent nanoscale entities into multifunctional systems and to connect these nano-systems to the micro/macro-world. This connection from the nano world to the macro world has been one of the long-standing problems in nanotechnology and still remains a big challenge. A novel approach of growing aligned carbon nanotubes (CNTs) around microsized carbon fibers should provide a useful platform technology for the development of various multidimensional and multifunctional nanomaterials and devices.

Posted: Aug 11th, 2006

Self-assembly of nanoparticles - a step towards realizing completely self-organized devices

The fabrication of ultrafine structures beyond the limits of conventional lithography is a topic of tremendous importance and is expected to play a significant role in the realization of futuristic nanotechnology. It is also equally important to develop functional material systems of ultrafine dimensions in order to achieve this goal. An important step towards realization of nanodevices is self-organized nanopatterning of functional structures. A new technique, which might be called chemical lithography, enables the regular assembly of optically active nanoparticles on a silicon surface.

Posted: Aug 1st, 2006

Oscillating pattern in nanoparticle crystallization

In order to survive, biological systems need to form patterns and organize themselves. Scientists at the Max Planck Institute for Colloids and Interfaces (MPI-KG) in Potsdam, Germany, have now combined self-organization with chemical pattern formation. They demonstrated that oscillating reaction patterns like that of a Belousov-Zhabotinsky reaction can not only be generated in a one-phase system like in all previous examples but also in a two-phase system like liquid-solid.

Posted: Jul 12th, 2006