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Einzelnen Atomen beim Zur-Ruhe-Gehen zusehen

Wissenschaftler haben mit Experimenten erstmals das dynamische Verhalten korrelierter einzelner Atome in Festkoerpern simuliert. Es gelang ihnen, Atome in sogenannten optischen Gittern aufzureihen und deren dynamisches Verhalten zu beobachten, das durch das komplexe Zusammenspiel mit anderen Atomen bestimmt ist.

Posted: Feb 21st, 2012

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The future of manmade materials

There's nothing ordinary about the materials being designed in the Stupp Laboratory at Northwestern University. Many of the futuristic fibers, films, gels, coatings and putty-like substances have led to important advances in areas of research such as regenerative medicine and energy technologies.

Posted: Feb 21st, 2012

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Nanomaterials expert wins prestigious Humboldt Research Fellowship

Just one month into his appointment at the University of South Australia and Professor of Chemistry and Materials Science at the Mawson Institute, Dr Nico Voelcker, has won a prestigious Humboldt Research Fellowship to carry out a long-term research project in nanomaterials.

Posted: Feb 20th, 2012

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Atomtronics: A new phase

Just as NASA engineers test new rocket designs in computer studies before committing themselves to full prototypes, so physicists will often model matter under various circumstances to see whether something new appears. This is especially true of atomtronics, a relatively new science devoted to creating artificial tailored materials consisting of neutral atoms held in an array with laser beams, or atoms moving along a desired track under electric or magnetic influence. A new study shows how a simple "joystick" consisting of an adjustable magnetic field can create several new phases of atomtronic matter, several of them never seen before.

Posted: Feb 19th, 2012

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Living model of brain tumor to test effectiveness of nanoparticles

Researchers have created a living 3-D model of a brain tumor and its surrounding blood vessels. In experiments, the scientists report that iron-oxide nanoparticles carrying the agent tumstatin were taken by blood vessels, meaning they should block blood vessel growth. The living-tissue model could be used to test the effectiveness of nanoparticles in fighting other diseases.

Posted: Feb 18th, 2012

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Wie Falten in Graphen entstehen und verschwinden

Nanowissenschaftler konnten Folgendes herausfinden: Waehrend des Abkuehlens werden die "Maschen" des Graphengitters gequetscht, bis zur Entlastung Falten entstehen. Umgekehrt werden die Maschen beim Aufheizen erst ordentlich auseinandergezogen, bevor die Falte wieder verschwindet.

Posted: Feb 17th, 2012

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Nanotechnology uses virus' coats to fool cancer cells

New research has used Sendai virus to transport Quantum Dots (Qdots) into brain cancer cells and to specifically bind Qdots to epidermal growth factor receptor (EGFR) which is often over-expressed and up-regulated in tumors.

Posted: Feb 17th, 2012

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Inspired by gecko feet, scientists invent super-adhesive material

For years, biologists have been amazed by the power of gecko feet, which let these 5-ounce lizards produce an adhesive force roughly equivalent to carrying nine pounds up a wall without slipping. Now, a team of polymer scientists and a biologist at the University of Massachusetts Amherst have discovered exactly how the gecko does it, leading them to invent "Geckskin", a device that can hold 700 pounds on a smooth wall.

Posted: Feb 17th, 2012

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