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ORNL assisted in investigating proteins called porins, one shown in red, which are found in the protective outer membrane of certain disease-causing bacteria and tether the membrane to the cell wall. Credit: Hyea (Sunny) Hwang/Georgia Tech and ORNL, U.S. Dept. of Energy

Scientists from Oak Ridge National Laboratory used high-performance computing to create protein models that helped reveal how the outer membrane is tethered to the cell membrane in certain bacteria.

UTK researchers used neutron probes at ORNL to confirm established fundamental chemical rules can also help understand and predict atomic movements and distortions in materials when disorder is introduced, as arrows show. Credit: Eric O’Quinn/UTK

Pauling’s Rules is the standard model used to describe atomic arrangements in ordered materials. Neutron scattering experiments at Oak Ridge National Laboratory confirmed this approach can also be used to describe highly disordered materials.

Sandra Davern performs cell based assays to evaluate cell death and DNA damage in response to radiation in order to gain a better understanding of how radioisotope nanoparticles affect the human body.

When Sandra Davern looks to the future, she sees individualized isotopes sent into the body with a specific target: cancer cells.

The first neutron structure of the SARS-CoV-2 main protease enzyme revealed unexpected electrical charges in the amino acids cysteine (negative) and histidine (positive), providing key data about the virus’s replication. Credit: Jill Hemman/ORNL, U.S. Dept. of Energy

To better understand how the novel coronavirus behaves and how it can be stopped, scientists have completed a three-dimensional map that reveals the location of every atom in an enzyme molecule critical to SARS-CoV-2 reproduction.

U.S. Department of Energy Deputy Secretary Mark Menezes (right) tours the DemeTECH N95 filter material production area with Xin Sun, ORNL interim associate laboratory director (center) and Craig Blue, ORNL advanced manufacturing program manager. Credit: US Dept. of Energy

A collaboration between the ORNL and a Florida-based medical device manufacturer has led to the addition of 500 jobs in the Miami area to support the mass production of N95 respirator masks.

Scientists synthesized graphene nanoribbons (yellow) on a titanium dioxide substrate (blue). The lighter ends show magnetic states. Inset: The ends have up and down spin, ideal for creating qubits. Credit: ORNL, U.S. Dept. of Energy

An international multi-institution team of scientists has synthesized graphene nanoribbons – ultrathin strips of carbon atoms – on a titanium dioxide surface using an atomically precise method that removes a barrier for custom-designed carbon

Water from local creeks now flows through these simulated streams in the Aquatic Ecology Laboratory, providing new opportunities to study mercury pollution and advance solutions. Credit: ORNL, U.S. Dept. of Energy

New capabilities and equipment recently installed at the Department of Energy’s Oak Ridge National Laboratory are bringing a creek right into the lab to advance understanding of mercury pollution and accelerate solutions.

These fuel assembly brackets, manufactured by ORNL in partnership with Framatome and Tennessee Valley Authority, are the first 3D-printed safety-related components to be inserted into a nuclear power plant. Credit: Fred List/ORNL, U.S. Dept. of Energy

The Transformational Challenge Reactor, or TCR, a microreactor built using 3D printing and other new advanced technologies, could be operational by 2024.

stacked poplar logs

Popular wisdom holds tall, fast-growing trees are best for biomass, but new research by two U.S. Department of Energy national laboratories reveals that is only part of the equation.

Sarah Cousineau

Two scientists with the Department of Energy’s Oak Ridge National Laboratory have been elected fellows of the American Physical Society.