Tag: "nickel" at biology news
New Ultrafine Metal Powder Production Process
... notes that the new process can produce silver and nickel
particles at a rate of .5 to 3 grams per minut...on, the technique can be used to deposit silver or nickel
in any desired pattern. The process could replace electroplating in some applications and po...
Max-Planck Researchers Unravel The Structure Of The Methane Forming Enzyme
... arrangement of the coenzymes suggests that the nickel
atom of coenzyme F430 is involved in the reaction by forming a short-living Ni-CH3, metal-organic compound rarely found in biological systems. The structure was solved in two different enzyme states which ressemble the coenzyme binding be...
Poison-Eating Bugs Strike Gold
...reen" processing of minerals such as gold, copper, nickel
and zinc from sulphide ores. Dr Peter Franzmann and Mr Matthew Stott of CSIRO Land and Water and CSIRO Minerals have identified several new species of native microbes able to break down the thiocyanate formed from the cyanide used to extract go...
Chemists Discover New Processes In Fuel-Cleaning Catalysis
... Weiss. The chemists observed a cluster of three nickel
atoms and its interaction with amolybdenum disulfi...denum disulfide crystallites on anoxide base--with nickel
or cobalt added as a reaction promoter--are used byrefineries worldwide as catalysts for removing su...
Engineered Bacteria Scavenge Heavy Metals
...cificallyto scavenge metals such as cadmium, zinc, nickel
or manganese, pointing to thesepotential benefits that other processes do not offer: -- Cornell's recombinant bacteria take over where other processes, such asion-exchange resins or bioabsorbents, leave off by removing heavy metals fromvery dilute s...
Spray Forming Aerospace Alloys For Bigger Aircraft
...iable ways of producing aircraft engine parts from nickel
and aluminiumsuperalloys. The technology uses tin...e laboratory to the production environment forsome nickel
and aluminium based alloys. This trend is likely to continue, butbenefit will best be realised wher...
Astrobiologist to hunt small game in Siberia
...as a mineral particlewas analyzed. "We have a nice nickel
peak, lots of zinc, calcium, titanium. It'sa mineral. We're seeing nickel
that's not inconsistent with a tiny speck ofmeteorite or cosmic dust." A few microns away on the sam...
UC Berkeley biologist disputes current dogma that genetic mutation is the cause of cancer
...t all. Asbestos, arsenic, some hormones, urethane, nickel
and polycyclic aromatic hydrocarbons all are known to induce cancer in humans, but none are mutagens. "The mutation hypothesis predicts that all carcinogens are mutagenic," he said. "Yet half of all carcinogens are not mutagenic, so how do they cause...
Life from the skies
...s, which might contain substances such as iron and nickel
derived from meteorites burning up in the atmosphere. "Aerosols in the stratosphere can last up to a year," says Murphy. "They have lots of time to pick up different things." As the water in the droplets evaporates, the diverse substances within the...
Wood dust, talc, estrogens, and nickel alloys among substances being reviewed for inclusion in Report on Carcinogens
...d UVC, the flavoring agent methyleugenol, metallic nickel
alloys, trichloroethylene and two pharmaceutical agents long known to have medical benefits, but al...
Nanodevices made from biomolecules and tiny nickel
propellers could usher in a new generation of ultrasmall, robotic, medical devices that administer drugs and other treatments from inside the body. In the Nov. 24 issue of Science, ONR-funded researchers at Cornell University report a successful demo...
Advisory panel on federal report on carcinogens makes recommendations to NIEHS/NTP for new listings
...ncer in humans, NIEHS/NTP staff said. -- Metallic nickel
as encountered in some industrial uses. But the panel voted against also listing certain alloys of nickel
as well. The alloys have many uses as specialty steels and stainless steels and are used in some me...
Federal government makes final call for data, public comment before writing new report on cancer-causing substances
...her antibiotics have failed. Nickel and certain nickel
alloys. Used in commercial operations for more than 100 years, metallic nickel
and certain of its alloys were recommended as "reasonably anticipated" by a vote of 6 to 2 in the in...
E. coli bacteria may be more useful than you think
...ar maltose and repelled by harmful substances like nickel
ions. This simple behavior is called chemotaxis. To migrate toward higher concentrations of "good" chemicals and away from higher concentrations of "bad" ones, a bacterium constantly monitors the levels of these chemicals as it swims. If the concentr...
Louisiana researcher and Washington, Pennsylvania, North Carolina companies win Presidential awards for environmentally-conscious business innovation
...f toxic lead and significant amounts of chrome and nickel
from a major industrial use. Novozymes North America (Franklin, N.C.) developed its BioPreparation enzymatic process to treat cotton textiles prior to dyeing and finishing. The economical and environmentally sound technology replaces conventional che...
Genetic secrets of metal-eating plants uncovered
...ight expect to find 10 to 100 parts per million of nickel
in their tissue, and these plants can accumulate 1...n a plant and it's got 10,000 parts per million of nickel
in its leaf, it's not going to taste too good," Salt says, laughing. Scientists are interested in us...
Researchers zero in on date of early hominids
...y conducting fluid, composed primarily of iron and nickel
alloy, with additions of other lighter elements. What triggers magnetic reversals isn't understood, Levi said, and reversals from one polarity to another may take thousands of years. Scientists have shown that during these transitions, the intensity ...
Office of Naval Research awards $8.4M to young investigators
...University will investigate segregation defects in nickel
superalloys by developing physical models of the transport phenomena and solidification behavior during processing. The research will lead to improved yield and to reduction of defects and thus will lead to lower cost for gas turbine engine propulsi...
Brookhaven Spotlights: News from the National Synchrotron Light Source
...bimetallics made of molybdenum plus either cobalt, nickel
or iron were the most efficient in removing sulfur from oil. These bimetallics have a wide range of applications for the production of environmentally friendly combustion of fuels for use in power plants, factories, houses, and transportation. New In...
University of Florida engineers probe 'shape memory' alloy for better prostheses
...rly 1960s. The name combines the abbreviations for nickel
and titanium with the acronym for the Naval Ordnance Laboratory, where the first research on the alloy was done. For years, nitinol was used only in niches. But the development of medical applications has spurred the creation of other nitinol commerc...