Tag: "copper" at biology news

Scientists explore genome of methane-breathing microbe

...d model for studying how microbes adapt to varying copper concentrations," he says, noting that M. capsulatus uses two separate systems at high and low copper concentrations for oxidizing methane. Scientists say the organism's potential significance for biot...

Bacteria use 'molecular lasso' to cop copper

...he bacteria then reabsorb the compound and use the copper as a weapon against methane, from which they extra...ntibacterial properties, and its ability to absorb copper may find application in the semiconductor industry, which needs copper-free water. The bacteria tha...

Protemix corporation announces discovery of way to repair hearts damaged by diabetes

...es for the first time that defective metabolism of copper in people with diabetes is implicated in the devel...ped in New Zealand by Protemix, removes the excess copper from the body. The study in preclinical models and in Phase 2 human clinical trials in subjects with...

UC Riverside researcher takes snapshots of the movement of molecules in a billionth of a second

...," details how carbon monoxide molecules move on a copper substrate when hit with extremely rapid laser pulses - a femtosecond is one millionth of a nanosecond - and tracks their movements. "It was possible to identify the individual site-to-site displacements of molecules undergoing ultra-fast dynami...

DFG presents the 2004 MAK and BAT value lists

...BHT, isopropenyl acetate, isophorone diisocyanate, copper and its inorganic compounds, 2-phenylpropene and trimethylamine) MAK values changed or new ones were proposed; the values of hydrogen bromide, chlorine, propane, pentane, octane and diphenyl were confirmed after a thorough examination. For twelve sub...

New world record magnet for chemical and biomedical research

... (Nb3Sn) or niobium-titanium (NbTi) filaments in a copper matrix. To support the magnetic loading, the coils are configured with stainless steel overbanding and are vacuum impregnated with cryogenically tough epoxy for structural support. The high current density coils produce a uniform field of 21.1 Tesla ...

Physics tip sheet #41 - April 5, 2004

...aves. The authors of this paper placed an array of copper cylinders in a tank of liquid. A source generated waves on one side of the cylinders, and the researchers observed the pattern of waves on the opposite side. At certain wave frequencies, negative refraction caused the waves to form an image of the so...

Design of composite materials that detect terahertz discovered

...s of a two-dimensional array of repeated patterned copper elements, called split ring resonators, deposited ... split ring resonator is made up of two concentric copper squares, both having a small gap. The gap in the larger square is on the opposite side as the gap i...

Copper may play role in 'starving' cancer to standstill

..." said Harris, who is an expert on the relation of copper in various human diseases. "Ultimately, nutrient d... combination with other treatments." The role of copper to control cancer traces its beginnings to Dr. Judah Folkman of the Harvard School of Medicine, whos...

Scientists report first sequencing of environmental genome

...contains high levels of toxic metals - zinc, iron, copper and arsenic - and is a piping 108 degrees Fahrenheit. In this low-light, low-oxygen, high-acid and toxic environment about 1,400 feet into the mountain, the microbes thrive. They fix carbon and nitrogen from the carbon dioxide and nitrogen in the air...

Waste motor oil management may pose threat to health and the environment

...ntained significantly higher levels of zinc, lead, copper and cadmium heavy metals that can threaten both human health and the environment. The total emission of heavy metals from used oil fuel in 2002 was potentially on the same scale as the combined emissions from all of California's large stationary pol...

OHSU-led research examines role of copper, iron in diseases

...orked to pinpoint what causes the short-circuit of copper metabolism in human cells that leads to two deadly...explores molecular mechanisms regulating primarily copper and iron concentrations in normal and diseased cells. The metals are essential to a wide range of bi...

Expedition will retrace legendary Steinbeck-Ricketts voyage to the Sea of Cortez

...fairly large town which has long been supported by copper mines," they wrote in 1940. "There were industrial...Santa Rosalia is fascinating," Gilly says . "Since copper ran out, squid has become the new big industry in town. Men and boys do the fishing, and the women w...

A new hope for heavy metal contaminated soils

...mall amounts of metals like iron, manganese, zinc, copper and nickel are essential. However, serious damage occurs when any heavy metal is accumulated in excess or distributed incorrectly within an organism. Therefore all life forms possess a tightly knit and intricately regulated network of metal homeostas...

Daily vitamins could prevent vision loss among thousands

...lligrams of zinc as zinc oxide and 2 milligrams of copper as cupric oxide....

New scheduling method raises efficiency of electronics recycling

...w fast the final "products," raw materials such as copper and steel, are extracted from obsolete machines, Stuart said. Far more important to the electronics recycler is keeping plenty of space continually available in an area of the plant where products are received and briefly stored immediately before th...

Drug developed for rare disease may help millions more as treatment for cancer, autoimmune diseases

...g the disease's effects. Realizing the key role of copper in angiogenesis, Brewer and colleagues then began ... in their teens or early 20s. The condition causes copper to accumulate in the body at dangerous levels, and if left untreated can cause severe liver damage a...

Scientists uncover early warning system for copper toxicity

...mounts of the "coinage metals" -- silver, gold and copper -- inside cells. For the first time, researchers c...hould improve our knowledge of diseases related to copper metabolism and influence the design of anticancer and antimicrobial drugs, and may lead to better me...

Jaws of clamworm are hardened by zinc say UCSB scientists

...its live prey. This discovery was a surprise since copper has never been found in such concentration in an organism. The copper fangs of the bloodworm were found to have a resistance to abrasion that is comparable to that of a h...

July 4 fireworks: Why they're brighter than ever

...es green; strontium monochloride produces red; and copper produces blue emission, according to Conkling. Tod... few sparkles helped along by iron filings or some copper and zinc. The colors were yellows, oranges and the occasional white-hot. It wasn't until the 1800s t...

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