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Metal in Biological News

Robo-bats with metal muscles may be next generation of remote control flyers

Tiny flying machines can be used for everything from indoor surveillance to exploring collapsed buildings, but simply making smaller versions of planes and helicopters doesn't work very well. Instead, researchers at North Carolina State University are mimicking nature's small flyers and developin...

Electromagnetic phantom exorcises specters of metal detector tests

In the comics, the Phantom is a masked crimefighter who protected the innocent from pirates, hijackers and other evildoers. While not as dashing or exciting as its costumed namesake, this electromagnetic phantoma carbon and polymer mixture that simulates the human bodyis being readied by the Natio...

From sheet metal elements to host cells: DFG launches 10 new collaborative research centers

On 1 January 2009 the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) will launch ten new Collaborative Research Centres. They will be initially funded for the next four years with a total of approximately 90 million euros. Among other things, the new Collaborative Research Centr...

Bare bones of crystal growth: Biomolecules enhance metal contents in calcite

Blacksburg, Va. From shells to bones, the skeletons of organisms contain small amounts of impurity elements such as magnesium. Because the levels of these elements provide important clues to past environments, a considerable effort has focused on understanding how to relate impurity contents to t...

Heavy metal link to mutations, low growth and fertility among crustaceans in Sydney Harbor tributary

Heavy metal pollutants are linked to genetic mutations, stunted growth and declining fertility among small crustaceans in the Parramatta River, the main tributary of Sydney Harbour, new research shows. The finding adds to mounting evidence that toxic sediments and seaweeds in Sydney Harbour are...

Scientists develop a fast system to detect metal concentrations in iron and steel industry workers

This release is available in Spanish . Researchers from the Department of Legal Medicine, Toxicology and Psychiatry of the University of Granada ( UGR ) developed a new method to detect metal concentrations in iron and steel industry workers. Continuous exposure to certain elements const...

TECNALIA uses artificial vision to improve recycling of electronic scrap metal

This release is available in Spanish . TECNALIA Technological Corporation is studying an innovative method based on multispectral artificial vision systems to enhance the value of electronic scrap which currently represent 4% of urban waste in Europe. The aim of this project, known as...

Bare metal stents deliver gene therapy to heart vessels with less inflammation in animal studies

Improved materials may allow stents, tiny metal scaffolds inserted into blood vessels, to better deliver beneficial genes to patients with heart disease, by reducing the risk of inflammation that often negates initial benefits. The new technique, using a compound that binds in an extremely thin lay...

E-Noses: Testing their mettle against fly noses

...ent of a new system which enables us to compare technical sensors with biological sensors. "We looked at how the most common type of e-nose sensors metal oxide or 'MOx' receptors sample the air around them. This is a critical factor in the performance of all noses. We then compared it with the perfor...

All-in-1 nanoparticle: A Swiss Army knife for nanomedicine

... Nature Nanotechnology . "This is the first time that a semiconductor and metal nanoparticles have been combined in a way that preserves the function of ea... picked a tough case," Gao said. "It is widely known that gold or any other metal will quench quantum dot fluorescence, eliminating the quantum dot's purpose...

Nanophysics: Serving up Buckyballs on a silver platter

... into molecular scale electronic devices like transistors and logic gates. To do this, researchers need to know how the molecule forms bonds with a metal substrate, such as silver, which is commonly used as an electrode in devices. Now, Hsin-I Li, Renee Diehl, and colleagues have determined the geometry...

URI researcher sheds light on 'man-eating' squid; finds them timid, nonthreatening

...ewhat pleased that they appeared frightened of his dive light. Yet he said the animals were also curious about other lights, like reflections off his metal equipment or a glow-in-the-dark tool that one squid briefly attacked. "Based on the stories I had heard, I was expecting them to be very aggressiv...

DOE-funded research projects win 46 R&D 100 Awards for 2009

...(Las Vegas, Nev.) High-Resolution UV Holography Lens - The lens will help scientists measure the size and velocity of particles ejected off a metal after it is hit by a shock wave. The physics of these particles will be used to develop a theoretical model for nonnuclear experiments that safely sim...

URI researcher sheds light on 'man-eating' squid; finds them timid, non-threatening

...ewhat pleased that they appeared frightened of his dive light. Yet he said the animals were also curious about other lights, like reflections off his metal equipment or a glow-in-the-dark tool that one squid briefly attacked. "Based on the stories I had heard, I was expecting them to be very aggressiv...

Facile synthesis of nanoparticles with multiple functions advanced in Singapore

... researchers have developed a protocol to transfer metal ions from an aqueous solution to an organic solution such as toluene. metal compounds that can dissolve in water are inexpensi...The IBN research team has successfully transferred metal ions rapidly from water to an organic medium by mi...

New advance in revolutionary 'bullet fingerprinting' technique

...ncovering new ways of recovering fingerprints from metal surfaces. Researcher Alex Goddard has uncovered...al and physical interactions occurring between the metal and the fingerprint sweat deposit. Using advanced ... Goddard explains, "Once a finger has touched the metal surface, a residue remains behind, this starts to ...

New Report Just Published: World Solid-State, Fiber, Gas and Dye Lasers Market Report

...illing, and Others (includes corresponding Graph/Chart) II-32 Application Areas II-32 What's Ahead II-33 Cutting and Welding II-33 metal Cutting II-33 Table 16: Worldwide Laser Cutting Market (2007): Percentage Breakdown by Region - Europe, Japan, North America, China, and ...

2000-year-old statue of an athlete sheds light on corrosion and other modern challenges

...e restoration of a 2,000-year-old bronze sculpture of the famed ancient Greek athlete Apoxyomenos may help modern scientists understand how to prevent metal corrosion, discover the safest ways to permanently store nuclear waste, and understand other perplexing problems. That's the conclusion of a new study...

Can a new implant coating technique create a new six million dollar man?

...s developed an electrochemical process for coating metal implants which vastly improves their functionality...ons can reconstruct joints in the human body using metal structures implanted to take the place of the natu...of plasma-spraying the coating onto the metal, the metal implant is placed into a bath of electrolyte solut...

Autonomous robot detects shrapnel

...ve developed a laboratory robot that can successfully locate tiny pieces of metal within flesh and guide a needle to its exact location - all without the nee...s, the robot successfully performed its main task: locating a tiny piece of metal in a water bath, then directing a needle on the end of the robotic arm to i...

Study shows transfer of heavy metals from water to fish in Huelva estuary

...shing is forbidden, is globally significant in terms of its levels of heavy metal contamination. For this reason it is an ideal area for scientists in w...tuary since 1997. The measures adopted have included waste water treatment, metal retention processes, waste treatment and reduction of discharges. ...

Bisphenol A exposure in pregnant mice permanently changes DNA of offspring

... is used to make hard polycarbonate plastic, such as for baby bottles, refillable water bottles and food containers, as well as to make the linings of metal food cans. BPA has estrogen-like properties and in pregnant animals has been linked to female infertility. "The big mystery is how does exposu...

Researchers create freestanding nanoparticle films without fillers

...t the electrodes. Using colloids, mixtures with particles 10 to 1,000 times larger than nanoparticles, EDP is widely used to apply coatings to complex metal parts such as automobile bodies, prosthetic devices, appliances and beverage containers. It is only recently that researchers like Dickerson have begu...

American Chemical Society's Weekly PressPac -- June 3, 2009

...ign of consumer products so that people can more easily recycle and use the metal content. Other solutions involve encouraging companies to adapt more effici... possibilities include mining new sources of metals, such as those found in metal sulfide deposits near deep-sea hydrothermal vents or manganese nodules foun...

Sweden to host 1.3 billion Euro research center

...sts modify and tailor materials to specific needs. The uses for this technology range from producing new drug compounds to target disease to improving metal alloys used in engineering components. Professor Bob Cywinski, of Huddersfield University in the UK, is spokesman for the EU FP7-funded ESS Prepara...

A quicker, cheaper SARS virus detector -- one easily customizable for other targets

...h a specific protein and only that protein. Second, it uses indium oxide (In2O3) nanowires instead of silicon and other materials previously tried. metal oxides, according to a new study published in ACSNano , do not, unlike silicon, develop "an insulating native oxide layer that can reduce sensitivity...

Healing wounds with lasers, vehicles that drive themselves, other cutting-edge optics

...tional Labs use a metamaterial to turn a stream of THz waves off and on. It's called a metamaterial since it consists of an array of microscopic split metal rings. The rings can be controlled by nearby electrodes; modulating the ring's capacitance, in turn, modulates the radiation; that is, the THz light (...

American Chemical Society's Weekly PressPac -- May 20, 2009

...the United States who may be exposed to disease-causing bacteria in contaminated metalworking fluids. Those fluids become airborne during machining of metal parts. The study appears in the current edition of ACS' monthly Journal of Proteome Research . In the report, Jagjit S. Yadav and colleagues note...

Plastic that grows on trees, part two

...rt the simple sugars into HMF. The chemical, a metal chloride known as chromium chloride, converted sug...ersion of cellulose to HMF. After trying different metal chloride catalysts in the ionic solvent, they foun...to acid, a common way to break down cellulose. The metal chlorides-ionic liquid system worked ten times fas...

Biomass as a source of raw materials

...emie , the process is based on a "one-pot" reaction catalyzed by a precious metal on a carbon support combined with an inorganic acid. Bio-oil is an aqueo...strate this with various model substances. As catalyst, they used palladium metal on a carbon support, with phosphoric acid as the proton source for the reac...

Pliable proteins keep photosynthesis on the light path

...rprising twist to photosynthesis by swapping a key metal necessary for turning sunlight into chemical energ...a, discovered a mutant that replaced the magnesium metal found in the reaction center with zinc. "We ini... can be determined by either the properties of the metal cofactors themselves or through their interaction ...

American Chemical Society's weekly PressPac -- May 6, 2009

...journal. Brje Sellergren and colleagues note that structural materials such as carbon steel in power plants' water cooling systems form deposits of metal oxides when they interact with coolants. In nuclear power plants, these oxides trap radioactive ions, leading to buildups of radioactivity that requir...

Searching for pollution in the Caribbean

...inutes later, the team of biologists had successfully unloaded their cargo. With one last pull, Messi and Carlos, two members of the team, secured the metal cask containing the core sediment samples to the back of a Toyota pick-up truck that would take the team back to San Pedro Sula. Miguel, who had al...

Evidence of the 'Lost World' -- did dinosaurs survive the end Cretaceous extinctions?

...-date the extinction". Fassett also found that "the dinosaur bones from the Ojo Alamo Sandstone have distinctly different concentrations of rare earth metal elements to the bones in the underlying Cretaceous rocks" and this, he argues "makes it very unlikely that the post-extinction bones were exhumed from...

Two-pronged model could help foil tough cystic fibrosis infections

...is said. The team used two FDA-approved iron chelators, deferoxamine and deferasirox, that can remove excess iron from the system by binding to the metal in a process called chelation. To mimic the clinical environment, they stuck to the maximum possible tobramycin dose of 1,000 micrograms per millilite...

Measuring snow with a bucket, a windmill, and the sun?

... using the same system. Basically, the system looks like this: a gage is attached to a 5-gallon bucket that sits atop a simple wooden platform on a metal pole. The gage has a heating element to melt the snow as it collects in the cone of the bucket. The gage only turns on when snow is detected. Nearby i...

Singapore researchers first to transform carbon dioxide into methanol

...-heterocyclic carbenes (NHCs), a novel organocatalyst. In contrast to heavy metal catalysts that contain toxic and unstable components, NHCs are stable, even... energy input and a much longer reaction time. They also require transition metal catalysts, which are both unstable in oxygen and expensive. Ongoing researc...

American Chemical Society Weekly PressPac -- April 8, 2009

...esota St. Paul, Minnesota 55108 Phone: 612-624-5307 Fax: 612-624-3005 Email: sangwon@umn.edu ARTICLE #4 FOR IMMEDIATE RELEASE It's the metal in the mussel that gives mussels their muscle power Langmuir Researchers in California are reporting for the first time that metals are key ing...

Cheap and efficient white light LEDs new design described in AIP's Journal of Applied Physics

...vironmentally friendly and much more efficient than other types of light bulbs. Incandescent bulbs produce light by sending electricity through a thin metal filament that glows red hot. Only about five percent of the energy is turned into light, however. The rest is wasted as heat. Compact fluorescent bulb...

Weizmann Institute scientists develop a unique approach for splitting water into hydrogen and oxygen

...ment of artificial photosynthetic systems based on metal complexes that serve as catalysts, with little suc... steps, mediated by a unique ingredient a special metal complex that Milstein's team designed in previous studies. Moreover, the one that they designed a metal complex of the element ruthenium is a 'smart' com...
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