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Spiky ferrofluid thrusters can move satellites

13-Jul-2017

Brandon Jackson, a doctoral candidate in mechanical engineering at Michigan Technological University, has created a new computational model of an electrospray thruster using ionic liquid ferrofluid -- a promising technology for propelling small satellites through space. Specifically, Jackson ...

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Supercomputers join search for 'cheapium'

07-Jan-2014

In the search for cheaper materials that mimic their purer, more expensive counterparts, researchers are abandoning hunches and intuition for theoretical models and pure computing power. In a new study, researchers from Duke University’s Pratt School of Engineering used computational methods to ...

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Electrical control of single atom magnets

10-Dec-2013

The energy needed to change the magnetic orientation of a single atom – which determines its magnetic stability and therefore its usefulness in a variety of future device applications – can be modified by varying the atom's electrical coupling to nearby metals. This striking result was published ...

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The contribution of particulate matter to forest decline

20-Jun-2013

Air pollution is related to forest decline and also appears to attack the protecting wax on tree leaves and needles. Bonn University scientists have now discovered a responsible mechanism: particulate matter salt compounds that become deliquescent because of humidity and form a wick-like ...

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Chemists grow crystals with a twist -- and untwist

22-Jul-2010

Chemists from New York University and Russia's St. Petersburg State University have created crystals that can twist and untwist, pointing to a much more varied process of crystal growth than previously thought. Their work, which appears in the latest issue of the Journal of the American Chemical ...

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Chemist stitches up speedier chemical reactions

New details about the Piers catalyst will help chemical industry improve products

11-May-2010

Some people have streets named after them. Warren Piers, a chemistry professor at the University of Calgary, has a catalyst penned after him. And in a paper published in the online edition of Nature Chemistry, Piers and former graduate student Edwin van der Eide reveal the inner workings of the ...

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Water droplets shape graphene nanostructures

21-Dec-2009

Graphene -- A single-atom-thick sheet of carbon, like those seen in pencil marks -- offers great potential for new types of nanoscale devices, if a good way can be found to mold the material into desired shapes. Chemists at the University of Illinois at Chicago say it's possible, reporting that ...

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3-D imaging: First insights into magnetic fields

01-Apr-2008

3-D images are not only useful in medicine; the observation of internal structures is also invaluable in many other fields of scientific investigation. Recently, researchers from the Hahn-Meitner-Institute (HMI) in Berlin in cooperation with University of Applied Sciences in Berlin have ...

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Tiny Tubes for Biotransport

Researchers clarify cellular uptake mechanisms for carbon nanotubes

08-Dec-2005

They look like the tiniest of needles and have the potential to channel pharmaceutical agents into targeted living cells: carbon nanotubes are long, thin, nanoscale tubes made of one (or more) layers of carbon atoms in a graphite-like arrangement. Drugs can be hooked on to their exteriors and can ...

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Molecular Needles: Carbon nanotubes inject antimycotics into cells and increase their effectiveness

21-Sep-2005

Putting pharmaceutical agents into the body isn't hard, but getting them into targeted areas can be problematic. If drugs aren't taken up by a large enough proportion of cells, a suitable "transport agent" must be used. A French and Italian research team has successfully used carbon nanotubes as ...

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