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UNC study pinpoints gene controlling number of brain cells
In populating the growing brain, neural stem cells must strike a delicate balance between two key processes - proliferation, in which the cells multiply to provide plenty of starting materials - and differentiation, in which those materials evolve into functioning neurons. view more (2009-10-05)
Extracting Metal from the Sea â€" the Environmentally Friendly Way
A novel method that uses bacteria to mine valuable minerals from the ocean has been developed. Nodules collected from the Indian Ocean seabed can be treated to extract scarce land-based minerals in an environmentally sound way, says research published in the Journal of Chemical Technology and Biotechnology. Using the marine species Bacillus M1,... view more... (2004-04-02)
Nanogenerators convert mechanical energy to electricity for self-powered devices
Researchers have developed a new technique for powering nanometer-scale devices without the need for bulky energy sources such as batteries. view more (2006-04-14)
Artemis, one year after launch
A mission brought back from the edge, a world premiere in space, European engineers grappling with the challenge of a launch malfunction: such are the results of Artemis`s first, adventurous year in space. For Artemis is still alive, doggedly advancing towards its working position in geostationary orbit, with ion engines not originally designed... view more... (2002-07-12)
New accelerator technique doubles particle energy in just one meter
Imagine a car that accelerates from zero to 60 in 250 feet, and then rockets to 120 miles per hour in just one more inch. view more (2007-02-15)
Oxygen ions for fuel cells get loose at low(er) temperatures
Seeking to understand a new fuel cell material, a research team working at the National Institute of Standards and Technology (NIST), in collaboration with the University of Liverpool, has uncovered a novel structure that moves oxygen ions through the cell at substantially lower temperatures than previously thought possible. view more (2008-06-30)
Harvesting energy from nature's motions
By taking advantage of the vagaries of the natural world, Duke University engineers have developed a novel approach that they believe can more efficiently harvest electricity from the motions of everyday life. view more (2009-11-02)
New Carbon Material Shows Promise of Storing Large Quantities of Renewable Electrical Energy
Engineers and scientists at The University of Texas at Austin have achieved a breakthrough in the use of a one-atom thick structure called "graphene" as a new carbon-based material for storing electrical charge in ultracapacitor devices, perhaps paving the way for the massive installation of renewable energies such as wind and solar... view more... (2008-09-17)
Brain networks strengthened by closing ion channels
Yale School of Medicine and University of Crete School of Medicine researchers report in Cell April 20 the first evidence of a molecular mechanism that dynamically alters the strength of higher brain network connections. view more (2007-04-23)
New Clues to How Proteins Dissolve and Crystallize
In the late 19th century the Czech scientist Franz Hofmeister observed that some salts (ionic compounds) aided the solution of proteins in egg white, some caused the proteins to destabilize and precipitate, and others ranged in activity between these poles. view more (2008-05-13)
A single water molecule acting as gate keeper
How do the bonds cells form with their environments rupture? What enables some cells to migrate? It is known since quite a while that cells can have complex mechanical interactions with their environments. Not only the biochemical but also the physical properties of their environment can thus have significant impact on cell behavior and even gene... view more... (2004-11-12)
Fantastic Voyage: A new nanoscale view of the biological world
Echoing the journey through the human body in Fantastic Voyage, doctors might soon be able to track individual donor cells after a transplant, or to find where and how much of a cancer treatment drug there is within a cell. view more (2006-10-05)
Closing In On Quantum Chemistry
Researchers in the Department of Energy's Lawrence Berkeley National Laboratory and the University of California at Berkeley have simulated the process by which a quantum computer could calculate to high precision an important basic property of two small molecules. view more (2005-09-09)
Features of early Martian environment and presence of water drive search for life forms
olar energy and winds, collisions with asteroids and comets, and changing magnetic fields have all altered the environment of Mars, a planet that may have been able to support life during its history. view more (2009-04-17)
Gold nanoparticles help detect a toxic metal -- mercury
With gold nanoparticles, DNA and some smart chemistry as their tools, scientists at Northwestern University have developed a simple "litmus test" for mercury that eventually could be used for on-the-spot environmental monitoring of bodies of water, such as rivers, streams, lakes and oceans, to evaluate their safety as food and drinking... view more... (2007-04-27)
Mileage from megawatts: Study finds enough electric capacity to "fill up" plug-in vehicles across much of the nation
If all the cars and light trucks in the nation switched from oil to electrons, idle capacity in the existing electric power system could generate most of the electricity consumed by plug-in hybrid electric vehicles. view more (2006-12-12)
Measuring nitrate concentrations in leafy green vegetables
Leafy green vegetables such as lettuce, Asian greens, and spinach can accumulate high concentrations of nitrate-nitrogen (NO3-N), which are potentially harmful if consumed by humans. view more (2009-09-09)
Pitt researchers harness carbon nanomaterials for drug delivery systems, oxygen sensors
Two nanoscale devices recently reported by University of Pittsburgh researchers in two separate journals harness the potential of carbon nanomaterials to enhance technologies for drug or imaging agent delivery and energy storage systems, in one case, and, in the other, bolster the sensitivity of oxygen sensors essential in confined settings, from... view more... (2009-08-18)
UBC researchers develop breakthrough technique to unlock the secret of plasmas
University of British Columbia researchers have developed a technique that brings scientists a big step closer to unlocking the secrets of the most abundant form of matter in the universe. view more (2008-11-24)
Popular Arthritis Drug May Disrupt Heart Rhythm, UB Research Finds
Celebrex, a popular arthritis drug that blocks pain by inhibiting an enzyme known as COX-2, has been shown in laboratory studies to induce arrhythmia, or irregular beating of the heart, via a novel pathway unrelated to its COX-2 inhibition. view more (2008-01-25)
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