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Gummy bears under antiparticle fire

Gelatin is used in the pharmaceutical industry to encapsulate active agents. It protects against oxidation and overly quick release. Nanopores in the material have a significant influence on this, yet they are difficult to investigate. In experiments on gummy bears, researchers have now transferred a methodology to determine the free volume of gelatin preparations.

Posted: Dec 29th, 2014

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Magnetic vortices: Controlling core switching in Pac-man disks

Magnetic vortices in thin films can encode information in the perpendicular magnetization pointing up or down relative to the vortex core. These binary states could be useful for non-volatile data storage devices such as RAM memories, but the switching between them must be fast and energy-efficient.

Posted: Dec 24th, 2014

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How electrons split: New evidence of exotic behaviors

In certain materials where the electrons are constrained in a quasi one-dimensional world, they appear to split into a magnet and an electrical charge, which can move freely and independently of each other. A longstanding question has been whether or not similar phenomenon can happen in more than one dimension. Researchers have uncovered new evidence showing that this can happen in quasi two-dimensional magnetic materials.

Posted: Dec 23rd, 2014

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Nanocellulose filter cleans dirty industry

Researchers have developed prototypes of nano-cellulose based filters with high purification capacity towards environmentally hazardous contaminants from industrial effluents eg. process industries.

Posted: Dec 23rd, 2014

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'Mind the gap' between atomically thin materials

When it comes to engineering single-layer atomic structures, 'minding the gap' will help researchers create artificial electronic materials one atomic layer at a time, according to a team of materials scientists.

Posted: Dec 23rd, 2014

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Crafting ultrathin color coatings

New research suggests that an ultra-thin layer of a metal and a semiconductor could be applied to essentially any rough or flexible material to produce a vividly colored coating. The technique, which exploits optical interference effects, could potentially be used on wearable fabrics or stretchable electronics.

Posted: Dec 23rd, 2014

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Piezoelectricity in a 2-D semiconductor

Researchers have opened the door to low-power off/on switches in micro-electro-mechanical systems (MEMS) and nanoelectronic devices, as well as ultrasensitive bio-sensors, with the first observation of piezoelectricity in a free standing two-dimensional semiconductor.

Posted: Dec 22nd, 2014

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Rätsel des platinarmen Nanokatalysators geklärt

Neuartige Nanopartikel-Katalysatoren könnten die Kosten für Brennstoffzellen dramatisch reduzieren. Ein von Berliner und Jülicher Forschern entwickelter Katalysator kommt mit einem Zehntel der üblichen Platinmenge aus.

Posted: Dec 22nd, 2014

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