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Yale study: Not enough metals in earth to meet global demand
Researchers studying supplies of copper, zinc and other metals have determined that these finite resources, even if recycled, may not meet the needs of the global population forever, according to a study published in the Proceedings of the National Academy of Sciences. view more (2006-01-26)
Growing whiskers that won`t need shaving
As manufacturers try to incorporate more and more functions into electronic gadgets like mobile phones and laptop computers, and at the same time decrease their size, the need for smaller electronic circuit components increases. At the 26th International Conference on the Physics of Semiconductors in Edinburgh on Thursday 1 August, Prof Lars... view more... (2002-07-23)
Best Microchemical Study of an Archeomaterial
Bronze age artifacts, physical links between us and people alive 3000 years ago, have long been closely examined with physics-based instruments such as x-ray crystallography and mass spectrometry. Now scrutiny of microchemical surface properties of such ancient bronze in some respects surpasses the diagnostic information gained by... view more... (2001-09-04)
Nano-scale trees created at Lund Institute of Technology
For the last few years scientists at the Nanometer Consortium at Lund University have been able to make nanowires, tiny wires just a few millionths of a millimeter "thick" and made of semiconducting material of great potential in the electronics industry. Now they have managed to produce "nanotrees," in fact tiny forests on the... view more... (2004-05-05)
A giant step toward tiny functional nanowires
Carving a telephone pole is easy if you have the right tools, say a power saw and some large chisels. And with some much tinier tools you could even carve a design into a paper clip if you wanted to. But shrink your sights down to the nanoscale, to a nanowire that is 1,000 times smaller than the diameter of a paper clip, and you find there are no... view more... (2005-07-01)
New iron-based and copper-oxide high-temperature
In the initial studies of a new class of high-temperature superconductors discovered earlier this year, research at the Commerce Department's National Institute of Standards and Technology (NIST) has revealed that new iron-based superconductors share similar unusual magnetic properties with previously known superconducting copper-oxide materials. view more (2008-05-29)
Magnetic atoms of gold, silver and copper have been obtained
An international team led by Physics and Chemistry teams from the Faculty of Science and Technology at the University of the Basque Country (UPV/EHU) and directed by Professor Jose Javier Saiz Garitaonandia, has achieved, by means of a controlled chemical process, that atoms of gold, silver and copper - intrinsically non-magnetic (not attracted to... view more... (2008-02-29)
Fabrication Of High Resolution Printed Circuit Boards
With ever increasing demands for greater miniaturisation and the use of flexible circuitry the need for improved fabrication methods for high resolution printed circuit boards is becoming more important. By precise control of the etching process inventors from the University of Oxford have been able to make the reliable production of High... view more... (2004-07-23)
Assembly technique for tiny wires may eventually help detect cancer and other diseases
Bottom-up manufacturing may hold the key to production of tiny medical devices capable of testing for multiple molecules like viruses or cancer markers, according to an interdisciplinary team of Penn State researchers. view more (2008-03-10)
Vitamin C and water not just healthy for people — healthy for plastics, too
Two new laboratory breakthroughs are poised to dramatically improve how plastics are made by assembling molecular chains more quickly and with less waste. view more (2006-10-26)
Improved Fabrication of High Resolution Printed Circuit Boards (PCBs)
Through precise control of the etching process, an inventor in Oxford University's Photofabrication Unit has made the reliable production of High Resolution Printed Circuit Boards (PCBs) with conductors down to 10 µm wide more of a cost-effective reality. With increasing demands for greater miniaturisation and the use of flexible circuitry, the... view more... (2002-12-10)
Study shows transfer of heavy metals from water to fish in Huelva estuary
A team of researchers from the University of Cadiz has confirmed that zinc, copper and lead are present at high levels in the water and sediments of the Huelva estuary, and have studied how some of these heavy metals are transferred to fish. view more (2009-06-16)
Water and Nanoelectronics Will Mix to Create Ultra-Dense Memory Storage Devices, Researchers Say
Excessive moisture can typically wreak havoc on electronic devices, but now researchers have demonstrated that a little water can help create ultra-dense storage systems for computers and electronics. view more (2006-04-28)
The nanoworld of corrosion
The effect of corrosion has an impact on about 3% of the world's Gross Domestic Product. From a positive point of view, however, chemical attack of metal surfaces may result into surface nano-structures with very interesting technological applications such as catalysts and sensors. view more (2006-02-10)
Copper circuits help brain function — could tweaking the circuits make us smarter?
The flow of copper in the brain has a previously unrecognized role in cell death, learning and memory. view more (2006-09-26)
Copper damages protein that defends against Alzheimer's
Copper can damage a molecule that escorts out of the brain a substance called amyloid beta that builds up in toxic quantities in the brains of people with Alzheimer's disease. view more (2007-11-07)
UB Scientist Discovers Novel Iron-Copper Alliance
Iron is the workhorse of trace minerals. An essential component of red blood cells, disruption of iron levels in the body will result in a myriad of serious conditions, and life cannot be sustained without it. view more (2007-07-24)
Transforming Nanowires Into Nano-Tools Using Cation Exchange Reactions
A team of engineers from the University of Pennsylvania has transformed simple nanowires into reconfigurable materials and circuits, demonstrating a novel, self-assembling method for chemically creating nanoscale structures that are not possible to grow or obtain otherwise. view more (2009-10-26)
Nanowires can detect molecular signs of cancer, scientists find
Harvard University researchers have found that molecular markers indicating the presence of cancer in the body are readily detected in blood scanned by special arrays of silicon nanowires - even when these cancer markers constitute only one hundred-billionth of the protein present in a drop of blood. view more (2005-09-26)
A First in Integrated Nanowire Sensor Circuitry
Scientists at the U.S. Department of Energy's Lawrence Berkeley National Laboratory and the University of California at Berkeley have created the world's first all-integrated sensor circuit based on nanowire arrays, combining light sensors and electronics made of different crystalline materials. Their method can be used to reproduce numerous such... view more... (2008-08-05)
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