Tag: "copper" at biology news
CSIRO finds a way to get more out of old cars
...of dry sludge contained about 3.1kg of recoverable copper
and about 33kg of clean steel," says Mr Bruckard. "While it's good to recycle as much as we can, the recovered materials are fairly low in value and so any process we develop needs to be simple and cheap." The method developed involves using a sortin...
Michael F. Hochella Jr. named Virginia's 2005 Outstanding Scientist
...ms and rivers as far away as 300 miles from an old copper
mine in Montana. Scientists worldwide are following Hochella's lead in studying the role small atomic scale particles play, for example, in triggering asthma attacks, allergic reactions and in transporting infectious diseases and fungus worldwide. Ho...
Incubator company at NJIT develops lifesaving MRI coil for small animals
...he antennas inside the coils are primarily made of copper
operating at room temperature. They cost between $10,000 and $75,000 (the latter for complex neurovascular coils) and are replaced frequently as coil technology continues to improve, said DeVries. The market for MRI coils has grown to about $300 m...
Polymers with copper show promise for implanted sensors
... researchers found, is copper. "It turns out that copper
ions can act as catalysts to take nitrosothiols an...U-M team has been creating polymers that include a copper
ion-containing complex. They've demonstrated that complexed copper
ions do have the desired catalyti...
Washington University chosen as NIH Program of Excellence in Nanotechnology
...noparticle will be a chelater that will hold onto copper
64 enabling collaborator Michael Welch, Ph.D., professor of radiology in the Washington University School of Medicine, to image the injured tissue with positron emission tomography (PET); once the nanoparticles concentrate at the injury sight , the...
NASA probe could reveal comet life, scientists claim
...l include organic matter, they suggest. The mainly copper
projectile will hit the comet at 25,000 miles per hour and will penetrate 15-20 metres into the surface before exploding. The comet will remain intact despite losing a huge amount of material 100,000 tonnes from a 100 metre diameter crater, and th...
DFG establishes 11 new research units
... well as the economic and cultural significance of copper
coinage in the Chinese Qing and the Japanese Tokugawa dynasties and the late Korean Choseon era. The Research Unit aims to complement the extensive research into the role played by silver in East Asia and in the early stages of the global economy and...
Sticky mutant proteins implicated in Lou Gehrig's disease
...ing because some mutations had dramatic effects on copper
and zinc binding, enzymatic activity, and stability of the protein, but many other mutations seemed to cause only subtle changes in these properties in vitro. Yet all of the mutants were known to be toxic in patients." As a result of several addition...
JCI table of contents September 1, 2005
...UROSCIENCE Unlocking Alzheimer's: Cholesterol and copper
chemistry could be the key The risk for Alzheimer...how that beta-amyloid peptides form a complex with copper
ions in the AD brain. This complex generates hydrogen peroxide from oxygen and leads to oxidative s...
Metal-based medicine could treat diseases in the body
...DC Designer molecules that combine metals such as copper
with natural organic materials could one day attac... natural affinity for the small amounts of iron or copper
that are already inside the body one that will then target the right viral RNA once it's assembled....
Old drug shows new promise for Huntington's Disease
... is, it binds metals in body tissues, particularly copper
and zinc, and removes them when it is excreted. Massa and other researchers believe that this chelation effect may interfere with production of the mutant huntingtin protein in some way. "But there are still a couple of explanations we need to rule o...
Katrina floodwaters not as toxic to humans as previously thought, study says
...ntain high levels of some toxic metals, especially copper
and zinc, and could pose a long-term danger to the...etals being discharged into the lake, particularly copper
and zinc, can be toxic to fish and other marine life and may bioaccumulate and contaminate seafood c...
Study links progressive aphasia syndrome to prion gene
... a variety of functions, from cellular delivery of copper
to cell signaling and even triggering or preventing cell death. The proteins may work either better or worse depending on which gene variants people inherit. Any of the proteins' normal activities could be important in the chain of events that lea...
Yale study: Not enough metals in earth to meet global demand
...cussions found in the economics literature." Using copper
stocks in North America as a starting point, the researchers tracked the evolution of copper
mining, use and loss during the 20th century. Then the researchers applied their findings and additi...
UCLA biochemistry professor Sabeeha Merchant wins prestigious research award
...ntial nutrient, for humans as well as plants where copper
is required for photosynthesis, and Merchant was s...ining protein that served the same function as the copper
protein," Merchant said. "If you give them copper, they will use it, but if you take the copper
Anthrax spores may survive water treatment
...ores had attached themselves to the surface of the copper
and CPVC pipes, 95 percent attached to the iron pi...s. When biofilms were present on the interior of copper
pipes attachment increased to 80 percent. "The data seem to suggest that anthrax spores can tolerat...
Discoveries should aid research into cause of ALS
... identical parts, each with an amino acid chain, a copper
ion, a zinc ion and an intramolecular disulfide linkage -- a bond within an SOD1 molecule that stabilizes the structure. Intermolecular disulfide bonds, or cross-links, are incorrect bonds that form between, not within, SOD1 molecules. "A year ago w...
Nanotubes used for first time to send signals to nerve cells
... as dense, able to conduct electricity better than copper
or to substitute for silicon in semiconductor chips, carbon nanotubes have been proposed as the basis for everything from elevator cables that could lift payloads into Earth orbit to computers smaller than human cells. Thin films of carbon nanotubes...
FSU research produces images of AIDS virus that may shape vaccine
... liquid film stretched across the holes of a small copper
grid and then flash-frozen, creating a solid form of ice that is more like clear glass than the typical crystalline form in ice cubes. Once inside the electron microscope, electrons bombarded the samples from myriad angles, magnifying it more than 43...
ACS news service weekly press package - May 15, 2006
...ed the technology to make foams from iron, cobalt, copper
and silver. "This new technique shows promise for being a flexible, general approach to the formation of a wide range of new nanoporous metals not currently accessible by state-of-the-art nanoscience," they stated. ARTICLE #2 "Ultralow-Density Nanost...
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