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Researchers test multi-element, high-entropy alloy with surprising results

September 5, 2014 7:50 am | by Lynn Yarris, Lawrence Berkeley National Laboratory | Comments

A new concept in metallic alloy design called “high-entropy alloys” has yielded a multiple-element material that tests out as one of the toughest on record. But, unlike most materials, the toughness as well as the strength and ductility of this alloy, which contains five major elements, actually improves at cryogenic temperatures.

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Magnetic nanocubes self-assemble into helical superstructures

September 5, 2014 7:46 am | by Jeanne Galatzer-Levy, Univ. of Illinois, Chicago | Comments

Materials made from nanoparticles hold promise for myriad applications. The challenge in creating these wonder materials is organizing the nanoparticles into orderly arrangements. Nanoparticles of magnetite, the most abundant magnetic material on earth, are found in living organisms from bacteria to birds. Nanocrystals of magnetite self-assemble into fine compass needles in the organism that help it to navigate.

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Should scientists handle retractions differently?

September 5, 2014 7:33 am | by Peter Dizikes, MIT News Office | Comments

It’s one of the highest-profile cases of scientific fraud in memory: In 2005, South Korean researcher Woo-Suk Hwang and colleagues made international news by claiming that they had produced embryonic stem cells from a cloned human embryo using nuclear transfer. But within a year, the work had been debunked, soon followed by findings of fraud. South Korea put a moratorium on stem cell research funding.

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FDA OKs Merck drug, first in new cancer drug class

September 4, 2014 3:26 pm | by The Associated Press | Comments

U.S. regulators have approved the first drug in a new class of cancer medicines that work by stimulating the immune system, a Merck drug developed for treating deadly skin cancer. The Food and Drug Administration says it has granted accelerated approval to Merck's Keytruda, for treating melanoma that's spread or can't be surgically removed, in patients previously treated with another drug.

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The buzz on caffeine in coffee: A genetic quirk

September 4, 2014 2:57 pm | by Seth Borenstein, AP Science Writer | Comments

Scientists have woken up and smelled the coffee … and analyzed its DNA. More than 60 researchers from around the world mapped out the genetic instruction book of java. They found that what we love about coffee, the caffeine, is a genetic quirk and not related to the caffeine in chocolate or tea.

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Researchers turn to plants to help treat hemophilia

September 4, 2014 1:02 pm | by April Frawley Birdwell, Univ. of Florida | Comments

Up to 30% of people with the most common form of hemophilia develop antibodies that attack lifesaving protein injections, making it difficult to prevent or treat excessive bleeding. Now researchers have developed a way to thwart production of these antibodies by using plant cells to teach the immune system to tolerate rather than attack the clotting factors.

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Ultrasensitive biosensor from molybdenite semiconductor outshines graphene

September 4, 2014 12:58 pm | Comments

A new atomically thin 2-D ultrasensitive semiconductor material developed by researchers California promises to push the boundaries of biosensing technology toward single-molecule detection. Based on molybdenum disulfide or molybdenite, the biosensor material which is used commonly as a dry lubricant, surpasses graphene’s already high sensitivity, offers better scalability and lends itself to high-volume manufacturing.

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Atomically thin material opens door for integrated nanophotonic circuits

September 4, 2014 12:43 pm | Comments

A team of U.S. and Swiss researchers have built a new basic model circuit consisting of a silver nanowire and a single-layer flake of molybdenum disulfide. This new combination of materials can efficiently guide electricity and light along the same tiny wire, a finding that could be a step towards building computer chips capable of transporting digital information at the speed of light.

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Lilly says insulin fares well in late-stage tests

September 4, 2014 11:27 am | by The Associated Press | Comments

Eli Lilly and Co. plans to seek approval early next year for a new insulin it developed after the diabetes treatment fared better than the competition in two late-stage clinical studies. The Indianapolis drugmaker said Thursday peglispro produced statistically significant lower blood sugar levels in patients when compared to people who took the Sanofi insulin Lantus in two late-stage studies of people with type 1 diabetes.

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Researcher’s nanoparticle key to new malaria vaccine

September 4, 2014 11:26 am | by Colin Poitras, UConn | Comments

A self-assembling nanoparticle designed by a Univ. of Connecticut (UConn) professor is the key component of a potent new malaria vaccine that is showing promise in early tests. For years, scientists trying to develop a malaria vaccine have been stymied by the malaria parasite’s ability to transform itself and “hide” in the liver and red blood cells of an infected person to avoid detection by the immune system.

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Titania-based material holds promise as new insulator

September 4, 2014 9:50 am | by Matt Shipman, News Services, North Carolina State Univ. | Comments

Research from North Carolina State Univ. shows that a type of modified titania, or titanium dioxide, holds promise as an electrical insulator for superconducting magnets, allowing heat to dissipate while preserving the electrical paths along which current flows. Superconducting magnets are being investigated for use in next-generation power generating technologies and medical devices.

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Tesla selects Nevada for battery plant

September 4, 2014 8:55 am | by Justin Pritchard and Scott Sonner, Associated Press | Comments

Coming to Nevada's high desert: A massive, $5 billion factory that will pump out high-tech batteries for hundreds of thousands of electric vehicles. That's assuming state leaders deliver on the economic incentives they packaged to entice Tesla Motors to Nevada rather than four other states competing for the factory and the economic jolt it promises to bring.

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Thermo Fisher Scientific teams with reference labs on new European food regulation

September 4, 2014 8:50 am | Comments

European laboratories testing food for dioxins now have lower-cost, smaller-footprint alternatives for confirming levels of toxic contaminants, thanks to a new European Union regulation. Thermo Fisher Scientific worked closely with national reference labs in the EU to support the development of the new regulation, which permits use of gas chromatograph-triple stage quadrupole mass spectrometers (GC-MS/MS) for confirmation.

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Scientists map protein in living bacterial cells

September 4, 2014 8:29 am | by SLAC National Accelerator Laboratory | Comments

Scientists have for the first time mapped the atomic structure of a protein within a living cell. The technique, which peered into cells with an x-ray laser, could allow scientists to explore some components of living cells as never before.

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Materials scientists play atomic Jenga

September 4, 2014 8:07 am | by Dawn Levy, Oak Ridge National Laboratory | Comments

Researchers at Oak Ridge National Laboratory got a surprise when they built a highly ordered lattice by layering thin films containing lanthanum, strontium, oxygen and iron. Although each layer had an intrinsically nonpolar distribution of electrical charges, the lattice had an asymmetric distribution of charges.

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