Scientists at Argonne National Laboratory have found a way to use tiny diamonds and graphene to give friction the slip, creating a new material combination that demonstrates the rare phenomenon of “superlubricity.” The five-person Argonne team combined diamond nanoparticles, small patches of graphene and a diamond-like carbon material to create superlubricity, a highly-desirable property in which friction drops to near zero.
When it comes to magnets, a doctor’s trash is a physicist’s treasure. Researchers at Argonne...
The secret of x-ray science, like so much else, is in the timing. Scientists at Argonne National...
A paper published in Scientific Reports by a team led by physicist Igor Aronson of the...
A clearer understanding of the origin recognition complex (ORC), a protein complex that directs DNA replication, through its crystal structure offers new insight into fundamental mechanisms of DNA replication initiation. This will also provide insight into how ORC may be compromised in a subset of patients with Meier-Gorlin syndrome, a form of dwarfism in humans.
A study published by researchers at Argonne National Laboratory provides theoretical evidence for a new effect that may lead to a way of measuring the exact temperature at which superconductivity kicks in and shed light on the poorly understood properties of superconducting materials above this temperature.
Researchers have revealed previously unobserved behaviors that show how details of the transfer of heat at the nanoscale cause nanoparticles to change shape in ensembles.
A new version of an online tool created by Argonne National Laboratory will help biofuels developers gain a detailed understanding of water consumption of various types of feedstocks, aiding development of sustainable fuels that will reduce impact on limited water resources.
Argonne National Laboratory will work with three of the world's leading nuclear products and services companies on projects that could unlock the potential of advanced nuclear reactor designs, helping create a new generation of safer, more efficient reactors.
Researchers have demonstrated, for the first time, a method to successfully predict pressure-dependent chemical reaction rates, an important breakthrough in combustion and atmospheric chemistry that is expected to benefit auto and engine manufacturers, oil and gas utilities and other industries that employ combustion models.
An ancient meteorite and high-energy x-rays have helped scientists conclude a half century of effort to find, identify and characterize a mineral that makes up 38% of the Earth. And in doing so, a team of scientists clarified the definition of the Earth's most abundant mineral, a high-density form of magnesium iron silicate, now called Bridgmanite, and defined estimated constraint ranges for its formation.
Before it can put the party in party balloons, helium is carried from deep within the Earth’s crust to the surface via aquifers. Aquifers contain water that has filtered there over hundreds of millennia. Using an atom trap built at Argonne National Laboratory to date the water in a deep South American aquifer, scientists tracked the rate at which helium pooled in the aquifers.
Like snowflakes, nanoparticles come in a wide variety of shapes and sizes. The geometry of a nanoparticle is often as influential as its chemical makeup in determining how it behaves, from its catalytic properties to its potential as a semiconductor component. Thanks to a new study, researchers are closer to understanding the process by which nanoparticles made of more than one material, called heterostructured nanoparticles, form.
A team of researchers from Argonne National Laboratory and Ohio Univ. have devised a powerful technique that simultaneously resolves the chemical characterization and topography of nanoscale materials down to the height of a single atom. The technique combines synchrotron x-rays (SX) and scanning tunneling microscopy (STM). In experiments, the researchers used SX as a probe and a nanofabricated smart tip of a STM as a detector.
A new discovery about the atomic structure of uranium dioxide will help scientists select the best computational model to simulate severe nuclear reactor accidents. Using the Advanced Photon Source, a team of researchers found that the atomic structure of uranium dioxide (UO2) changes significantly when it melts.
Testing for ovarian cancer or the presence of a particular chemical could be almost as simple as distinguishing an F sharp from a B flat, thanks to a new microscopic acoustic device that has been dramatically improved by scientists at Argonne National Laboratory. The device, known as a surface acoustic wave (SAW) sensor, detects frequency changes in waves that propagate through its crystalline structure.
A collaboration blending research in U.S. Dept. of Energy's offices of High-Energy Physics (HEP) with Basic Energy Sciences (BES) will yield a one-of-a-kind x-ray detector. The device boasts Brookhaven National Laboratory sensors mounted on Fermilab integrated circuits linked to Argonne National Laboratory data acquisition systems. It will be used at Brookhaven's National Synchrotron Light Source II and Argonne's Advanced Photon Source.
Techniques for self-assembling of molecules have grown increasingly sophisticated, but biological structures remain a challenge. Recently, scientists have used self-assembly under controlled conditions to create a membrane consisting of layers with distinctly different structures. At the Advanced Photon Source, the team has studied the structures and how they form, paving the way for hierarchical structures with biomedical applications.
Like dancers swirling on the dance floor with bystanders looking on, protons and neutrons that have briefly paired up in the nucleus have higher-average momentum, leaving less for non-paired nucleons. Using data from nuclear physics experiments, researchers have now shown for the first time that this phenomenon exists in nuclei heavier than carbon, including aluminum, iron and lead.
When trying to design a mechanical system to last as long as possible, scientists and engineers have to find ways of overcoming friction. While researchers have found many materials that help to reduce friction, conventional lubricants often have chemical limitations. A recent analysis at Argonne National Laboratory has identified the properties of a newer, wear-resistant substance that works in a broader range of environments.
American electrical utilities do a pretty fantastic job of getting us electricity when we need it. In 2006, the power was out on average for just 0.03% of the year in the U.S. But right now, this system depends on getting most of its power from coal, nuclear and gas plants: big, dependable power plants that can be turned on and off when needed.
Scientists at the U.S. Department of Energy’s Argonne National Laboratory have created a new model to more accurately describe the greenhouse gases likely to be released from Arctic peatlands as they warm. Their findings, based on modeling how oxygen filters through soil, suggest that previous models probably underestimated methane emissions and overrepresented carbon dioxide emissions from these regions.
A novel x-ray technique used at the U.S. Department of Energy’s Advanced Photon Source has revealed surprising dynamics in the nanomechanics of operating batteries and suggests a way to mitigate battery failures by minimizing the generation of elastic energy. The method could open a path to wider use of these batteries in conjunction with renewable energy sources.
Researchers at the U.S. Dept. of Energy (DOE)’s Argonne National Laboratory announced a new tool for analyzing the economic impacts of building new compressed natural gas fueling stations. Called JOBS NG, the tool is freely available to the public. Mostly made up of methane, compressed natural gas is an alternative fuel for cars and trucks that can offer greenhouse gas benefits over gasoline.
A collaboration between scientists in the Univ. of Chicago’s chemistry department, the Institute for Molecular Engineering and Argonne National Laboratory has produced the highest-ever recorded efficiency for solar cells made of two types of polymers and fulllerene. Researchers identified a new polymer that improved the efficiency of solar cells and also determined the method by which the polymer improved the cells’ efficiency.
Researchers at Argonne National Laboratory have created a small scale “hydrogen generator” that uses light and a 2-D graphene platform to boost production of the hard-to-make element. The research also unveiled a previously unknown property of graphene. The 2-D chain of carbon atoms not only gives and receives electrons, but can also transfer them into another substance.
Manufactures of turbine engines for airplanes, automobiles and electric generation plants could expedite the development of more durable, energy-efficient turbine blades thanks to a partnership between Argonne National Laboratory, the German Aerospace Center and the universities of Central Florida and Cleveland State. The ability to operate turbine blades at higher temperatures improves efficiency and reduces energy costs.
Sugar is a vital source of energy. Understanding just how sugar makes its way into the cell could lead to the design of better drugs for diabetes patients and an increase in the amount of fruits and vegetables farmers are able to grow. Stanford Univ. researchers have recently uncovered one of these "pathways” into the cell by piecing together proteins slightly wider than the diameter of a strand of spider silk.
Scientists’ underwater cameras got a boost this summer from the Electron Microscopy Center at Argonne National Laboratory. Along with colleagues at the Univ. of Manchester, researchers captured the world’s first real-time images and simultaneous chemical analysis of nanostructures while “underwater,” or in solution.
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