Tag: "metal" at biology news
Under magnetic force, nanoparticles may deliver gene therapy
...tically directed into stents, the tiny, expandable metal
scaffolds inserted into a patients partially blocked vessels to improve blood flow. Many stents eventually fail as cells grow on their surfaces and create new obstructions, so delivering anti-growth genes to stents could help keep blood flowing freel...
Instant steam takes on MRSA
...ts at UK firm Oxford Catalysts, employs a precious metal
catalyst to generate the steam at temperatures up to 800 C in just a couple of seconds, at room temperature and pressure. Steam produced by the technology is so-called dry steam, generated by the highly exothermic reaction between methanol and hydrog...
Report recommends off-site disposal of secondary waste
...ce the amount of waste dealt with on-site. Scrap metal
from the munitions casings and bulk containers is ...ycling facility. The report recommends that scrap metal
continue to be recycled or disposed of off-site as much as possible. Plastics, in the form of the ...
American Chemical Society's Weekly PressPac -- July 18, 2007
... continue to be major sources of potentially toxic metal
emissions in urban areas, despite new regulations ..., David S. T. Hjortenkrans and colleagues compared metal
emissions from brake linings and tires to other metal
emission sources in Stockholm during 1995 and ...
UB scientist discovers novel iron-copper alliance
...s: an intestinal iron transporter called divalent metal
transporter 1 (Dmt1) and an intestinal copper transporter, the Menkes copper ATPase (Atp7a). The overall goal of the project is to answer three specific questions regarding the role of copper in intestinal iron transport, Collins noted: 1) Are Atp7a...
Coming soon -- Protein synthesis without amino acids?
...egler-Natta polymerization, which requires special metal
catalysts. The heart of this process is a step cal... pearl, or monomer, squeezes itself in between the metal
atom and the growing chain. Until now, attempts to use this type of copolymerization for peptide sy...
Microscopic jets, diamonds unlikely on Uranus, and amazing mosquito legs
...o a solution of hydrogen peroxide and water. This metal
catalyzes a reaction in which hydrogen peroxide breaks into oxygen and water. Because the reaction spits out three molecules for every two that it consumes, the polystyrene ball is pushed from the platinum side. Objects as small as these polystyre...
Chronic fatigue -- clues in the blood
...Some of them relate to transport of zinc and other metal
ions within the cell, which may suggest a fundamental disturbance in cellular function. The researchers now hope to take narrow the focus of research onto the expression of these 35 genes in the blood of a much larger group of subjects from the Dub...
Today's waste, tomorrow's fuel
...ew source of clean energy. Platinum is a precious metal
and resources are scarce and expensive. Our research is looking at ways of recycling platinum and other precious metals. Dr Prichard is working with her team to find locations where platinum is concentrated enough to recover in order to develop co...
American Chemical Society's Weekly PressPac -- June 27/July 3, 2007
...ing to ban exports of mercury a potentially toxic metal
that has been ending up in the hands of small-sca...eady are suffering from mercury poisoning, use the metal
to extract gold. Through this practice, at least 650 metric tons are released into the environment a...
Manganese levels increase in scrapie-infected sheep before clinical symptoms develop
...pie-resistant sheep produce elevated levels of the metal
when challenged with the disease. This suggests that elevated manganese levels in the blood and central nervous system are caused by the animals initial response to the disease. The findings raise the possibility of using manganese levels in the ...
New dynamic brace developed to advance clubfoot treatment
... high-top shoes attached to a shoulder-width fixed metal
bar. Because of skin blistering and the brace's restriction of leg motion, many parents used the brace less than had been prescribed, which can allow recurrent clubfoot deformities that may require extensive surgery. In fact, past studies had shown t...
2 MSU professors spearhead international water project
...Development of high-flux membranes to remove heavy metal
contaminants will include the group in Kiev, which is heavily involved in this work due to local environmental contamination, along with a group from MSU which is developing high-flux membranes that reject large molecules. This project also interna...
New $1.16 million study investigates how dietary iron is used by cells
...lar players and vesicular compartments involved in metal
ion homeostasis and metal
Don't overlook urban soil
... no relationships found between land use and heavy metal
levels. Rather, researchers found trace metals to be correlated with surface rock types instead of urban factors, making these characteristics unique to the Baltimore region. This was surprising since in an old industrial city like Baltimore, [w...
Plastic that grows on trees
...ith a novel non-acidic catalytic system containing metal
chloride catalysts in a solvent capable of dissolv... The solvent, called an ionic liquid, enabled the metal
chlorides to convert the sugars to HMF. Ionic liquids provide an additional benefit: It is reusable,...
Microbes at work cleaning up the environment
...from an abandoned mine excrete proteins that cause metal
nanoparticles to aggregate. The bacteria are bindi...gregation, thereby protecting themselves. When the metal
nanoparticles aggregate, they dont move as easily and are less soluble. Using secondary ion mass s...
In nature, proteins sweep up nanoparticles
...orld in which bacteria emit proteins that sweep up metal
nanoparticles into immobile clumps. Their finding ...ay lead to innovative ways to remediate subsurface metal
toxins. The research, which appears in the June 15, 2007 issue of the journal Science, reveals tha...
Turning the tables in chemistry
...st so happens that electrified pickles swimming in metal
ions are one example of the type of undergraduate chemistry class demonstration that helps make a future in science a bright possibility, rather than a total turn-off, for many students. In a commentary in this months Nature Chemical Biology, Brand...
Better chemistry through living models
...ons are expensive; fuel cells require the precious metal
platinum. We seek to prepare new metal
complexes based on abundant, inexpensive metals such as iron, manganese and molybdenum. To search ...
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