Nanotechnology highlights from the ACS national meeting in Anaheim, Calif., March 28-April 1
..., California Pavilion D.) Monday, March 29 Tiny iron nanoparticles show promise for cleaning up big ind...rchers have developed a method to make inexpensive iron nanoparticles that exceed conventional methods in efficiency and speed, cleaning up sites in a matte...Estimated one in five people worldwide lack enough zinc in diet
...lready employed to deliver other nutrients such as iron and folic acid; Public education on good dietary sources of zinc, such as animal source foods (meat, sea food) and whole grain cereals and legumes, and increasing their availability in the food supply. "National programs to improve zinc status ar...Microbe's trick provides a template for willowy crystals
...ive there. Now, the flooded depths of an abandoned iron mine in southwestern Wisconsin have yielded yet an... microbes, which are more than likely metabolizing iron from the mine environment. "We are dealing with microbes that probably oxidize ferrous iron and red...Other highlights in the March 3 issue of JNCI
...cer Risk Intake of dietary heme iron--the type of iron found in meat--is associated with an increased ris...l and distal colon cancer. The association between iron intake and colon cancer risk is unclear. Most of the data examining such an association comes from e...... transformation: they result in the binding of two iron and two sulfur atoms that form a complex that bridges two thioredoxin protein molecules. This iron-sulfur cluster was shown to be necessary for the new enzyme to form disulfides. Iron-sulfur complexes occur in many enzymes, but never before had such ...Exposure to low-level magnetic fields causes DNA damage in rat brain cells, researchers find
...exposure to magnetic fields affects the balance of iron in certain cells, leading to an increase in free iron within the cell. That free iron undergoes a chemical reaction, which releases "free radicals," or c...Goal of ocean 'iron fertilization' said still unproved
... whether seeding ocean waters with tanker loads of iron particles could alleviate global warming, said a D...se experiments is that fertilizing the oceans with iron could sufficiently boost photosynthetic rates of floating patches of microscopic plants called phyto...University of Colorado archaeologist, colleagues hot on the trail of ancient Persian warships
...d as a weapon of last resort if the shaft with the iron point had broken or was lost during combat," he said. The researchers were able to get a close-up view of the spear butt-spike with the remotely operated vehicle, or ROV. As soon as it was determined to be metal, the ROV moved into position and a me...JCI table of contents, February 2, 2004
...was enhanced in the presence of salicylate and low iron concentratrions suggesting that salicylate is a na...trate for the pump and that the environment of low iron concentrations in the cystic fibrosis lung can induce efflux-mediated antibiotic resistance, even in...Scientists report first sequencing of environmental genome
... for life on Mars, since it's conceivable that the iron and sulfur-rich surface of Mars could harbor microbes that eat iron, similar to those in iron and sulfur-rich pyrite mines like the Richmond Mine. For the past nine years, Banfield has been stud...Microbial biofilm yields community genomes, metabolic clues
...accessible the oxygen,carbon dioxide, nitrogen and iron necessary for respirationand metabolism. While researchers are unsure which organisms are responsiblefor creating some key polymers, they found within theLeptospirillum strain-but not in the Ferroplasma strain-thegenes for making cellulose and other...Highlights of Tufts University nutrition research: January 2004
...University Health & Nutrition Letter , the mineral iron helps produce an integral component of bone called...here is a complicated relationship at work because iron and calcium compete for absorption in the body. Research has shown that iron's role in bone buildin...OHSU-led research examines role of copper, iron in diseases
...lecular mechanisms regulating primarily copper and iron concentrations in normal and diseased cells. The m... "There is a very tight link between copper and iron metabolism," Lutsenko said. "Studying the systems in parallel is mutually beneficial. The experiment...Purdue chemist 'mussels' in on secrets of natural adhesives
...t barnacle adhesion. "These animals appear to use iron in a way that has never been seen before," said Wi...is fellow researchers are studying. Metals such as iron are usually needed only in trace quantities for life, but Wilker's research has demonstrated a novel...Desert dust enables algae to grow
... of algae. Scientists had already assumed that the iron in desert dust stimulated algal growth, but this h...ust from Namibia. As well as establishing how much iron the dust contained, the researchers also discovered that the algae could only utilise a limited part...Academy Harbor Consortium releases letter on mercury to President Bush
... reducing mercury emissions from coal combustion, iron and steel melting industries, and other sources, i... a reduction of mercury emissions from the state's iron and steel melters by 75 percent by 2009, and a further reduction of mercury emissions from New Jerse...Researchers probe how microbes speed up acid production at mining sites
...pecifically, they wanted to find out what kinds of iron species and precipitates can be found on microbe-t... Thiobacillus thiooxidans, forcing them to ''eat'' iron or sulfur, the elements that make up pyrite. They examined the products of metabolism using surface-...Hope available for patients with anemia and myelodysplastic syndrome
... anemia exist, each with its own cause, such as an iron or vitamin deficiency, blood loss, chronic illness, a genetic or acquired defect or disease, or a medication side effect. Anemia can be temporary or long-term and can range from mild to severe. Anemia affects more than three million Americans, maki...Researchers find mechanism bacteria use to target specific chemical contaminants
...universities showed how a particular bacteria uses iron oxide, or rust, to breathe. The researchers found ... the microbe to recognize and bind specifically to iron oxides. This finding could help researchers manipulate the bacteria to make it more effective in cle...'Homegrown' relief for victims of arsenic poisoning in South Asia
...eric ion-exchange beads with ferric hydroxide. The iron transmits its affinity for arsenic to the beads. T...n columns, provide a sturdy mechanism for the fine iron powder, which would otherwise form clumps and clog the column, creating a pressure drop and making r...