Magnetic switch turns strange quantum property on and off

Magnetic switch turns strange quantum property on and off
When a ballerina pirouettes, twirling a full revolution, she looks just as she did when she started. But for electrons and other subatomic particles, which follow the rules of quantum theory, that's not necessarily so. When an electron moves around a closed path, ending up where it began, its physical state may or may not be the same as when it left. Now, there is a way to control the outcome, thanks to an international research group led by scientists at the National Institute of Standards and …
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Nanoalloys ten times as effective as pure platinum in fuel cells

Nanoalloys ten times as effective as pure platinum in fuel cells
A new type of nanocatalyst can result in the long-awaited commercial breakthrough for fuel cell cars. Research results from Chalmers University of Technology and Technical University of Denmark show that it is possible to significantly reduce the need for platinum, a precious and rare metal, by creating a nanoalloy using a new production technique. The technology is also well suited for mass production. Even though there have been fuel cell cars for about fifty years, advances have not led to a …
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Paper test strip could help heart failure patients monitor their condition at home

Paper test strip could help heart failure patients monitor their condition at home
Contrary to the condition's name, heart failure doesn't mean the heart has stopped pumping -- it's just not working at full strength. It can often be managed with medications and lifestyle changes, but its progression needs to be monitored closely. Now scientists have developed a new test strip that could potentially allow patients to do this at home for the first time. Their study appears in the journal ACS Nano. In the U.S., nearly 6 million people live with heart failure, and about 1 million …
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Neutrons provide the first nanoscale look at a living cell membrane

Neutrons provide the first nanoscale look at a living cell membrane
A research team from the Department of Energy's Oak Ridge National Laboratory has performed the first-ever direct nanoscale examination of a living cell membrane. In doing so, it also resolved a long-standing debate by identifying tiny groupings of lipid molecules that are likely key to the cell's functioning. The methods developed provide a new experimental platform for biophysical studies of membranes and, potentially, other cell components. It could prove useful for future research on importa…
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Nanoalloys ten times as effective as pure platinum in fuel cells

Nanoalloys ten times as effective as pure platinum in fuel cells
A new type of nanocatalyst can result in the long-awaited commercial breakthrough for fuel cell cars. Research results from Chalmers University of Technology and Technical University of Denmark show that it is possible to significantly reduce the need for platinum, a precious and rare metal, by creating a nanoalloy using a new production technique. The technology is also well suited for mass production. Even though there have been fuel cell cars for about fifty years, advances have not led to a …
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A fresh look inside the protein nano-machines

A fresh look inside the protein nano-machines
The essential nano-mechanic features of proteins can be conveniently studied by a simplified geometry. Taking, for example, a cylinder, and asking for «evolution» to find a fluid channel (shown in blue) a multitude of realistic properties of real proteins appear naturally, and exhibit the advantage of conceptual, rather than detailed models of proteins. Credit: © UNIGE - Jean-Pierre Eckmann …
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New way to test self-driving cars could cut 99.9 percent of validation costs

New way to test self-driving cars could cut 99.9 percent of validation costs
Credit: University of Michigan Mobility researchers at the University of Michigan have devised a new way to test autonomous vehicles that bypasses the billions of miles they would need to log for consumers to consider them road-ready. The process, which was developed using data from more than 25 million miles…
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How to prevent 3-D printing hacks? Install secret flaws and share the decoder ring

How to prevent 3-D printing hacks? Install secret flaws and share the decoder ring
Posted: May 24, 2017 (Nanowerk News) Additive manufacturing (AM), also called 3D printing, is growing fast. Worldwide, the AM market grew nearly 26 percent to more than $5 billion last year, versus 2015, and another 17.4 percent this year versus last. The rapid prototyping market alone is expected to reach $5 billion by 2020. But since the global supply chain for AM requires companies to share computer aided design (CAD) files within the organization o…
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Special X-ray technique allows scientists to see 3-D deformations

Special X-ray technique allows scientists to see 3-D deformations
While doctors use X-rays to see the broken bones inside our bodies, scientists have developed a new X-ray technique to see inside continuously packed nanoparticles, also known as grains, to examine deformations and dislocations that affect their properties. In a new study published last Friday in Science, researchers at the U.S. Department of Energy's (DOE) Argonne National Laboratory used an X-ray scattering technique called Bragg coherent diffraction imaging to reconstruct in 3-D the size and …
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Atomic structure of irradiated materials is more akin to liquid than glass

Atomic structure of irradiated materials is more akin to liquid than glass
Materials exposed to neutron radiation tend to experience significant damage, leading to the containment challenges involved in immobilizing nuclear waste or nuclear plant confinements. At the nanoscale, these incident neutrons collide with a material's atoms that, in turn, then collide with each other somewhat akin to billiards. The resulting disordered atomic network and its physical properties resemble those seen in some glassy materials, which has led many in the field to use them in nuclear…
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