Tag: "metals" at biology news
Monitoring poisons in the environment -- a woolly matter
are present in variable amounts in the natural env... bio-monitoring device for natural levels of heavy metals
in the Lake District and Wales at the Society for Experimental Biologys Annual Meeting in Glasgow (3...
New metal crystals, formed on a cotton assembly line
...ystals quickly and of uniform size, Shin said. The metals
display catalytic, electrical and optical that would not be present in larger or odd-sized crystals. The acid converts the cellulose to a large, stable crystallized molecule rich in oxygen-hydrogen, or hydroxyl, groups, predictably spaced along the...
Removing a hydrogen fuel-cell roadblock
... And finally, hydrogen has a nasty habit of making metals
brittle, so the metal also has to handle repeated ...the expertise of Russell and Jones in the field of metals
development to pick the mixtures. "It is not by accident that I asked to work with Alan and Larry," ...
UN, industry, others partner to create world standards for e-scrap recycling, harvesting components
...environment." In addition to well-known precious metals
such as gold, palladium and silver, unique and indispensable metals
have become increasingly important in electronics. Among them: Indium, a by-product of zinc mining ...
Ingredient in Big Macs and sodas can stabilize
... gum arabic could be used to absorb and assimilate metals
and create a "coating" that makes gold nanoparticles stable and nontoxic. Katti and Raghuraman Kannan, assistant professor of radiology, have been collaborating on the development of biocompatible gold and silver nanoparticles for medical applicati...
ACS News Service Weekly PressPac -- February 14, 2007
...ety, a weekly publication. Hollow nanospheres of metals
and other inorganic materials are generating great... PCBs also are a rich potential source of valuable metals
and other materials that could be recovered and reused. The researchers describe tests of their pr...
EO Lawrence Award goes to 8 scientists and engineers
...ors that are critical to the fate and transport of metals
and radionuclides in the environment. His studies of how toxic metals
travel in the subsurface environment of the Department of Energy Hanford site are helping provide sc...
Researchers probe health and safety impacts of nanotechnology
...aid the health and environmental effects of common metals
and materials are well-known. The question for the...researchers is whether the effects change when the metals
and materials take the form of nanoparticles and whether these nanoparticles become more or less ha...
Algae toxin identification unravels fish-kill mystery
...AA suspected that the presence or absence of heavy metals
might be the missing factor accounting for Pfiesteria's lethality, and put together a multidisciplinary research team to identify the actual toxin and the conditions under which it is produced. The work was complicated by the fact that the suspect ...
Fires fuel mercury emissions, University of Michigan study finds
...amples at Camp Davis---measuring mercury and trace metals
over two summers---which provided the scientists with a picture of the atmospheric background on which the fires were superimposed. Forests act as mercury traps because mercury in the atmosphere---which comes from both natural and human-generated s...
Shotgun sequencing finds nanoorganisms
..., as acidic as battery acid, and loaded with toxic metals
- zinc, iron, copper and arsenic. In 2004, Banfield collaborated with the Department of Energy's Joint Genome Institute to shotgun sequence a drop of the slime. This type of sequencing involves homogenizing the organisms in the sample, isolating th...
New study shows promise of toxicogenomics in environmental monitoring
...rnia because of the state's history of mining. The metals
are also used in industrial parts ranging from brake pads to batteries, and can be found in urban runoff. For the study, the researchers chose sublethal exposure levels that are comparable to what is found in the environment. For each metal, the ...
CU study reveals pros and cons of therapy for lead exposure
...ead. Chelating drugs, which bind to lead and other metals
in the blood, are increasingly being used for the treatment of autism in children. "Although these drugs are widely used to treat lead-exposed children, there is remarkably little research on whether or not they improve cognitive outcomes, the major ...
Nano design adjustment may help find, clear some water contaminants
...arged binding, or cation, such as the chelation of metals
by EDTA (ethylenedinitrilotetraacetic acid), is done almost exactly --s (0.01 nanometers). EDTA is widely used in industrial cleaners, detergents and textile production....
Study finds oysters can take heat and heavy metals, but not both
...m-nickel batteries, yellow paint and mining, heavy metals
like cadmium are common pollutants in estuaries where oysters live, Sokolova notes, but their concentrations occur at only few parts per billion quantities long assumed to be too low to threaten marine life. We have looked at oysters metabolism, a...
Researchers study role of natural organic matter in environment
...e. Solubility, mobility and toxicity of many trace metals
are strongly correlated with the concentration of ...ic matter can change the mobility of certain toxic metals
in soil and water. "We performed our experiments and computer simulations with ions such as sodium...
Extreme life, marine style highlights 2006 ocean census
...a few centimeters and high concentrations of heavy metals
from the vent fluids. Darkest Southern Ocean census takers revealed an astonishing community of marine life shrouded beneath 700 meters of ice 200 km from open water. Equally remarkable, sampling of this most remote oceans depths during three len...
Silver bullet: UGA researchers use laser, nanotechnology to rapidly detect viruses
... Richard Dluhy experimented with several different metals
and methods and found a way to significantly amplify the signal. Using a method they've patented, they place rows of silver nanorods 10,000 times finer than the width of a human hair on the glass slides that hold the sample. And, like someone positio...
UCSD scientists establish connection between life today and ancient changes in ocean chemistry
...fts in ocean chemistry, led to changes in types of metals
used with protein structures. Such changes are hyp... of life Archaea, Bacteria and Eukarya -- all use metals
differently. The differences reflect the availability of such metals
in the ocean as the respective...
Dartmouth study contributes to research addressing malnutrition and iron deficiency
...s technique to examine the spatial distribution of metals
in samples of interest." The imaging was carried out at the Department of Energy's National Synchrotron Light Source at Brookhaven National Laboratory....
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