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A shield assembly that protects an instrument measuring ion and electron fluxes for a NASA mission to touch the Sun was tested in extreme experimental environments at Oak Ridge National Laboratory—and passed with flying colors. Components aboard Parker Solar Probe, which will endure th...

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An Oak Ridge National Laboratory-led team has observed how a prolific class of antibiotics may be losing its effectiveness as certain bacteria develop drug resistance by acquiring enzymes known as aminoglycoside modifying enzymes. Aminoglycosides are commonly used in antibiotics to tre...

Neutron interactions revealed the orthorhombic structure of the hybrid perovskite stabilized by the strong hydrogen bonds between the nitrogen substituent of the methylammonium cations and the bromides on the corner-linked PbBr6 octahedra.
Neutron scattering has revealed, in real time, the fundamental mechanisms behind the conversion of sunlight into energy in hybrid perovskite materials. A better understanding of this behavior will enable manufacturers to design solar cells with increased efficiency...
Uppsala University researcher Marvin Seibert is using neutrons to study RuBisCO, an abundant enzyme essential to life on earth.
Plants, algae, and other organisms produce the RuBisCO enzyme to convert carbon dioxide from the atmosphere into energy-rich molecules, like glucose, that form carbohydrates and other organic carbon compounds essential to life on earth. This catalytic process is called “carbon f...
ORNL-designed nuclear fuel cladding is now undergoing tests at Southern Nuclear’s Hatch Nuclear Power Plant in Georgia, with additional tests planned for later this year. Credit: Jason Richards/ Oak Ridge National Laboratory, U.S. Dept. of Energy
A team led by researchers at the Department of Energy’s Oak Ridge National Laboratory has developed a safer cladding for nuclear fuel rods. The new material, an alloy of iron, chromium and aluminum, avoids zirconium. As a result, it should give plant operators s...
Academic researchers look to Argonne’s Mira supercomputer to better understand boiling phenomena, bubble formation and two-phase bubbly flow inside nuclear reactors. Credit: Igor Bolotnov/North Carolina State University

The intrinsic beauty of bubbles—those thin watery spheres filled with air or other gases—has long captured the imagination of children and adults alike. But bubbles are also a linchpin of nuclear engineering, helping to explain the natural world, predict safety issues and improve the...

A tetradentate ligand selects americium (Am, depicted by green spheres) over europium (Eu, blue spheres). Red indicates oxygen atoms and purple, nitrogen atoms that are the key to the ligand’s selectivity. Image credit: Oak Ridge National Laboratory, U.S.
After used nuclear fuel is removed from a reactor, it emits heat for decades and remains radioactive for thousands of years. The used fuel is a mixture of major actinides (uranium, plutonium), fission products (mainly assorted metals, including lanthanides) and minor actinides (i.e....
From left, Andrew Lupini and Juan Carlos Idrobo use ORNL’s new monochromated, aberration-corrected scanning transmission electron microscope, a Nion HERMES to take the temperatures of materials at the nanoscale. Image credit: Oak Ridge National Laboratory

A scientific team led by the Department of Energy’s Oak Ridge National Laboratory has found a new way to take the local temperature of a material from an area about a billionth of a meter wide, or approximately 100,000 times thinner than a human hair. This discove...

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A new method to produce large, monolayer single-crystal-like graphene films more than a foot long relies on harnessing a “survival of the fittest” competition among crystals. The novel technique, developed by a team led by Oak Ridge National Laboratory, may open new opportunities for growing the high-quality two-dimensional materials necessary for long-awaited practical applications.

Using neutrons, an ORNL research team studied the protein structure of bacteria-produced enzymes called beta-lactamases by examining one of them to better understand how resistant bacteria behave.
New insights into certain catalytic enzymes formed by bacteria to break down antibiotics may lead to the design of drugs better equipped to combat resistant bacteria. Scientists at Oak Ridge National Laboratory used neutron crystallography at the lab’s Spallation Neutron Source to st...