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For perfect nanocrystals just add water

A simplified technique to fabricate nanocrystals of cerium dioxide, which have wide-ranging technological and industrial applications, has been 'unexpectedly' demonstrated by a UNSW chemist.

Posted: Jul 10th, 2013

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Stirred, not shaken: Nanoscale magnetic stir bars

Anyone who has ever worked in a laboratory has seen them: magnetic stirrers that rotate magnetic stir bars in liquids to mix them. The stir bars come in many different forms - now including nanometer-sized. Researchers have now introduced chains made of 40 nm iron oxide particles that act as the world's smallest magnetic stir bars, effectively stirring picoliter-sized drops of emulsion with a commercial magnetic stirrer.

Posted: Jul 10th, 2013

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Rapid cooling leads to stronger alloys

This new technique will play a major role in the production of novel materials, from metals, alloys, metal matrix composites to micro- and nanostructured semiconductors.

Posted: Jul 10th, 2013

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Heat radiation of small objects: Beyond Planck's equations

All the objects around us emit thermal radiation. Usually, this radiation can be described very accurately using Planck's law. If, however, the radiating object is smaller than the thermal wavelength, it behaves according to different rules and cannot emit the energy efficiently. This has now been confirmed by a team of researchers at the Vienna University of Technology.

Posted: Jul 10th, 2013

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Microparticles create localized control of stem cells

Researchers are reporting advances in these areas by using gelatin-based microparticles to deliver growth factors to specific areas of embryoid bodies, aggregates of differentiating stem cells. The localized delivery technique provides spatial control of cell differentiation within the cultures, potentially enabling the creation of complex three-dimensional tissues.

Posted: Jul 9th, 2013

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Graphene on its way to conquer Silicon Valley

The remarkable material graphene promises a wide range of applications in future electronics that could complement or replace traditional silicon technology. Researchers of the Electronic Properties of Materials Group at the University of Vienna have now paved the way for the integration of graphene into the current silicide based technology.

Posted: Jul 9th, 2013

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