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Rice develops first method to sort nanotubes by size
Rice University scientists have developed the first method for sorting semiconducting carbon nanotubes based on their size, a long-awaited development that could form the basis of a nanotube purification system capable of producing the necessary feedstocks for nano-circuits, therapeutic agents, next-generation power cables and more. view more (2006-06-26)
How left-handed amino acids got ahead: a demonstration of the evolution of biological homochirality in the lab
A chemical reaction that demonstrates how key molecules in the biological world might have come to be predominately left or right handed has been reported by scientists at Imperial College London. Ever since discovering that the building blocks of the biological world, such as amino acids and sugars, are distinctively left or right handed -... view more... (2004-06-21)
Scientists shed light on the mystery of photosynthesis
Scientists at the University of Sheffield are part of an international team that has become the first to successfully discover how the component parts of photosynthesis fit together within the cell membrane. In a paper, The native architecture of a photosynthetic membrane, published in Nature on 26 August 2004, they describe how the configuration... view more... (2004-08-25)
Pitt professor designs less-risky reactor for clean, safe energy
Reactors that burn hydrogen or natural gas to generate energy can be dirty and dangerous. The mix of air with hydrogen or natural gas can explode easily if composition and temperature are not carefully controlled. And reactors often produce polluting byproducts. view more (2006-09-13)
Severe and fatal allergic reactions to food in children are rare
Fears that the rates of severe or fatal allergic reactions to food are increasing dramatically are unfounded, finds a national, 10 year, study in the Archives of Disease in Childhood. Such reactions are rare in the UK, but children who have asthma are at greater risk, the findings show. view more (2002-03-21)
Thioethers synthesis process
Although today there exists a number of methods for the synthesis of organic molecules (the main components of certain medicines, foods, additives, paints, fabrics, liquid crystals, etc.), in most cases toxic reagents and solvents have to be used. view more (2007-04-03)
Chimps, like humans, focus on faces
A chimp's attention is captured by faces more effectively than by bananas. A series of experiments described in BioMed Central's open access journal Frontiers in Zoology suggests that the apes are wired to respond to faces in a similar manner to humans. view more (2009-07-23)
Separating uranium from plutonium
Moscow researchers have made the supercritical carbon dioxide work. Saturated with special reagents, carbon dioxide first extracts uranium from the spent nuclear fuel waste, then extracts plutonium and then flies away into the atmosphere. As a matter of fact, the spent nuclear fuel consists of multiple elements. First of all, this is uranium that... view more... (2003-08-08)
Small molecule interactions were central to the origin of life
In an important new paper forthcoming in the June issue of The Quarterly Review of Biology, Robert Shapiro (New York University) argues against the widely held theory that the origin of life began with the spontaneous appearance of a large, replicating molecule such as RNA. view more (2006-05-17)
U of M study examines kidney stone prevention in astronauts
As the space shuttle Discovery prepares to launch on July 1, researchers at the University of Minnesota have identified a way for astronauts to reduce their risk of developing kidney stones while in space. view more (2006-06-28)
Iowa State engineer develops laser technologies to analyze combustion, biofuels
Let's say a fuel derived from biomass produces too much soot when it's burned in a combustion chamber designed for fossil fuels. How can an engineer find the source of the problem? It originates, after all, in the flame zone of a highly turbulent combustion chamber. That's not exactly an easy place for an engineer to take measurements. view more (2007-12-06)
A better way to copy DNA
Scientists have developed a new method for DNA amplification that could replace the polymerase chain reaction (PCR), a technique that is invaluable for both medical diagnostics and basic research but which is confined to the laboratory. In the August issue of EMBO reports, Huimin Kong and colleagues at New England Biolabs (Beverly, MA, USA)... view more... (2004-07-14)
Sunlight turns carbon dioxide to methane
Dual catalysts may be the key to efficiently turning carbon dioxide and water vapor into methane and other hydrocarbons using titania nanotubes and solar power, according to Penn State researchers. view more (2009-03-05)
Scientists discover new chemical reaction for DNA production in bacteria and viruses
A team of researchers has discovered a new chemical reaction for producing one of the four nucleotides, or building blocks, needed to build DNA. view more (2009-04-17)
Improved immune diagnostics
With many forms of illness, such as allergies, asthma, rheumatoid arthritis or multiple sclerosis, the success of therapy can be shown by the absence or presence of certain cells and the proteins they produce. Today, this can be ascertained in a number of different ways. Researchers at the Fraunhofer Institute for Toxicology and Aerosol Research... view more... (2000-01-27)
Towards the mechanism of cell respiration
Researchers at the Institute of Biotechnology of the University of Helsinki have for the first time identified an internal electron transfer reaction that initiates the proton pump mechanism of the respiratory enzyme. view more (2006-04-06)
What gives us sunburn protects crayfish against bacteria
The production of melanin gives us sunburns, but it also helps invertebrate animals to encapsulate attacking fungi and parasites. view more (2007-09-25)
Rat study suggests why teens get hooked on cocaine more easily than adults
New drug research suggests that teens may get addicted and relapse more easily than adults because developing brains are more powerfully motivated by drug-related cues. view more (2008-04-22)
Production of 'mint-scent'
In the industry, many tons of alcohol are used annually, as a starting point for the synthesis of many substances. Alcohol first has to be oxidised, after which aromas such as mint or cinnamon, or substances needed for the production of nylon are produced. Until now heavy metals such as chrome-oxide were used in the oxidation process. Ten Brink:... view more... (2000-03-03)
Clotted fat in the blood can be separated with ultrasound
An entirely new method for purifying blood has been developed at the Lund Institute of Technology, LTH, in Sweden. The blood is led out in hair-thin channels and is processed with ultrasound. A company in the neighboring research village IDEON is now perfecting the first medical application: a treatment to separate out clotted fat so-called fat... view more... (2002-09-23)
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