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Materials researchers micromanage atoms in hard metal

By combining theory and experiments, researchers at Chalmers University of Technology in Sweden have now taken a crucial step toward being able to micromanage the performance of the material, down to the level of the atom.

Posted: Jun 14th, 2010

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Nanotechnology speakers hold promise for sonar uses

University of Texas Dallas researchers have found that carbon nanotube sheets excel as underwater sound generators and noise-canceling speakers, two highly desirable traits for submarine sonar and stealth capabilities.

Posted: Jun 14th, 2010

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How bacteria make nano-syringes

For a successful infection, bacteria must outwit the immune system of the host. To this aim, they deliver so-called virulence factors through a transport channel located in the bacterial membrane. In some bacteria this transport channel is formed like a syringe, enabling them to inject virulence factors directly into the host cell. Scientists have now succeeded for the first time in elucidating basic principles of the assembly of this transport channel.

Posted: Jun 13th, 2010

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Watching plants grow, cell by cell

Automated imaging of cells in developing plants is described in a paper published this week in Nature Methods. These methods will permit a more detailed understanding of the cellular behaviors that underlie plant growth and development.

Posted: Jun 13th, 2010

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Engineers turn the stickiness of gold nanoparticles into an advantage

One property of gold nanoparticles stands in the way of many nanotechnological developments: They're sticky. Gold nanoparticles can be engineered to attract specific biomolecules, but they also stick to many other unintended particles - often making them inefficient at their designated task. MIT researchers have found a way to turn this drawback into an advantage.

Posted: Jun 11th, 2010

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Programmierbares DNA Nanopartikel-Ventil setzt gezielt Wirkstoffe frei

Damit die Dosis eines Medikaments kuenftig so niedrig wie therapeutisch moeglich gehalten werden kann, sollen die Wirkstoffe in Zukunft direkt zum Zielort im Organismus transportiert und dort erst freigesetzt werden. Dafuer sollen sie in Nanopartikel eingeschlossen werden, die ihre Fracht nur bei einem bestimmten pH-Wert, einer definierten Temperatur oder unter anderen spezifischen Bedingungen freigeben.

Posted: Jun 11th, 2010

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'Smart' underpants may save lives

Printed on the waistband and in constant contact with the skin is an electronic biosensor, designed to measure blood pressure, heart rate and other vital signs.

Posted: Jun 11th, 2010

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Scientists glimpse the motion of electrons in molecules

Physicists in Europe have successfully glimpsed the motion of electrons in molecules. The results are a major boon for the research world. Knowing how electrons move within molecules will facilitate observations and fuel our understanding of chemical reactions.

Posted: Jun 10th, 2010

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