Public Release: 20-May-2016
Angewandte Chemie Neutrons probe structure of enzyme critical to development of next-generation HIV drugs
A team led by the Department of Energy's Oak Ridge National Laboratory used neutron analysis to better understand a protein implicated in the replication of HIV, the retrovirus that causes AIDS. The enzyme, known as HIV-1 protease, is a key drug target for HIV and AIDS therapies. The multi-institutional team used neutron crystallography to uncover detailed interactions of hydrogen bonds at the enzyme's active site, revealing a pH-induced proton 'hopping' mechanism that guides its activity.
DOE/Office of Science
Public Release: 9-May-2016
Nature Neutrons tap into magnetism in topological insulators at high temperatures
Researchers at the Department of Energy's Oak Ridge National Laboratory, Massachusetts Institute of Technology and their collaborators used neutron scattering to reveal magnetic moments in hybrid topological insulator materials at room temperature, hundreds of degrees Fahrenheit warmer than the extreme sub-zero cold where the properties are expected to occur.
The discovery promises new opportunities for next-generation electronic and spintronic devices such as improved transistors and quantum computing technologies.
DOE/Office of Basic Energy Sciences
Public Release: 5-May-2016
Advanced Energy Materials Speedy ion conduction in solid electrolytes clears road for advanced energy devices
A team led by the Department of Energy's Oak Ridge National Laboratory used state-of-the-art microscopy to identify a previously undetected feature, about 5 billionths of a meter (nanometers) wide, in a solid electrolyte. The work experimentally verifies the importance of that feature to fast ion transport, and corroborates the observations with theory. The new mechanism the researchers report in Advanced Energy Materials points out a new strategy for the design of highly conductive solid electrolytes.
DOE/Office of Science
Public Release: 22-Apr-2016
Physical Review Letters ORNL researchers discover new state of water molecule
Neutron scattering and computational modeling have revealed unique and unexpected behavior of water molecules under extreme confinement that is unmatched by any known gas, liquid or solid states.
Public Release: 21-Apr-2016
Industrial & Engineering Chemistry Research Advances in extracting uranium from seawater announced in special issue
The oceans hold more than four billion tons of uranium--enough to meet global energy needs for the next 10,000 years if only we could capture the element from seawater to fuel nuclear power plants. Major advances in this area have been published by the American Chemical Society's journal Industrial & Engineering Chemistry Research. Oak Ridge National Laboratory and Pacific Northwest National Laboratory led more than half of the 30 papers in the special issue.
DOE/Office of Nuclear Energy
Contact: Dawn Levy firstname.lastname@example.org
DOE/Oak Ridge National Laboratory, DOE/Pacific Northwest National Laboratory
Public Release: 19-Apr-2016 Chemistry consortium uses Titan supercomputer to understand actinides
A multi-institution team led by the University of Alabama's David Dixon is using Titan to understand actinide chemistry at the molecular level in hopes of designing methods to clean up contamination and safely store spent nuclear fuel.
US Department of Energy
Public Release: 15-Apr-2016
Science Advances 'Odd couple' monolayer semiconductors align to advance optoelectronics
In a study led by Oak Ridge National Laboratory, scientists synthesized a stack of atomically thin monolayers of two lattice-mismatched semiconductors. Where the two semiconductor layers met, they formed an atomically sharp heterostructure, which generated a photovoltaic response by separating electron-hole pairs that were generated by light. The achievement of creating this atomically thin solar cell shows the promise of synthesizing mismatched layers to enable new families of functional two-dimensional materials.
US Department of Energy, DOE/Oak Ridge National Laboratory
Public Release: 11-Apr-2016 ORNL hosts Southeast bioenergy meeting, study tour
Researchers and others interested in establishing a sustainable bioeconomy in the US are taking part in a five-day study tour led by the Department of Energy's Oak Ridge National Laboratory.
Public Release: 5-Apr-2016 Story tips from the Department of Energy's Oak Ridge National Laboratory, April 2016
This tip sheet includes: ORNL researchers focus on minimizing impact of natural and man-made disasters hit; Aberrated probes helping to detect magnetic properties in materials; Thermoelectric heat pump dryer potentially uses 40 percent less energy; ORNL researchers discover structures designed to monitor fish movement are potential obstacles.
Public Release: 22-Mar-2016
Advanced Functional Materials ORNL researchers invent tougher plastic with 50 percent renewable content
Researchers at the Department of Energy's Oak Ridge National Laboratory have made a better thermoplastic by replacing styrene with lignin, a brittle, rigid polymer that, with cellulose, forms the woody cell walls of plants. In doing so, they have invented a solvent-free production process that interconnects equal parts of nanoscale lignin dispersed in a synthetic rubber matrix to produce a meltable, moldable, ductile material that's at least ten times tougher than ABS, a common thermoplastic.
ORNL's Technology Innovation Program
Public Release: 21-Mar-2016
ACS Nano ORNL-NIST team explores nanoscale objects and processes with microwave microscopy
Researchers at the Department of Energy's Oak Ridge National Laboratory and the National Institute of Standards and Technology have demonstrated a nondestructive way to observe nanoscale objects and processes in conditions simulating their normal operating environments. Their novel approach combines ultrathin membranes with microwaves and a scanning probe.
Department of Energy Office of Science, National Institute of Standards and Technology
Public Release: 17-Mar-2016
ACS Applied Materials & Interfaces Replacement for silicon devices looms big with ORNL discovery
Two-dimensional electronic devices could inch closer to their ultimate promise of low power, high efficiency and mechanical flexibility with a processing technique developed at Oak Ridge National Laboratory.
Public Release: 15-Mar-2016
ACS Photonics New ORNL method could unleash solar power potential
New ORNL measurement and data analysis techniques could provide insight into performance-robbing flaws in crystalline structures, ultimately improving the performance of solar cells.
Public Release: 7-Mar-2016
Applied Surface Science Plasma processing technique takes SNS accelerator to new energy highs
A novel technique known as in-situ plasma processing is helping scientists get more neutrons and better data for their experiments at the Spallation Neutron Source at the Department of Energy's Oak Ridge National Laboratory.
The Department of Energy's Office of Science
Public Release: 3-Mar-2016 DOE-funded Bioenergy Research Centers file 500th invention disclosure
Three US Department of Energy-funded research centers are making progress on a shared mission to develop technologies that will bring advanced biofuels to the marketplace, reporting today the disclosure of their 500th invention.
DOE/Office of Science
The Department of Energy's Office of Science is the single largest supporter of basic research in the physical sciences in the United States and is working to address some of the most pressing challenges of our time.