The DOE Science News Source is a Newswise initiative to promote research news from the Office of Science of the DOE to the public and news media.
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Newswise: 041422-ber-protein-functions_0.jpg?itok=gA7xQbpZ
Released: 15-Apr-2022 3:30 PM EDT
Machine Learning Helps Predict Protein Functions
Department of Energy, Office of Science

To engineer proteins for specific functions, scientists change a protein sequence and experimentally test how that change alters its function. Because there are too many possible amino acid sequence changes to test them all in the laboratory, researchers build computational models that predict protein function based on amino acid sequences. Scientists have now combined multiple machine learning approaches for building a simple predictive model that often works better than established, complex methods.

Released: 6-Nov-2019 6:05 PM EST
Harvesting Energy from Light using Bio-inspired Artificial Cells
Department of Energy, Office of Science

Scientists designed and connected two different artificial cells to each other to produce molecules called ATP (adenosine triphosphate).

Released: 29-Oct-2019 12:05 PM EDT
Engineering Living Scaffolds for Building Materials
Department of Energy, Office of Science

Bone and mollusk shells are composite systems that combine living cells and inorganic components. This allows them to regenerate and change structure while also being very strong and durable. Borrowing from this amazing complexity, researchers have been exploring a new class of materials called engineered living materials (ELMs).

Released: 28-Oct-2019 12:05 PM EDT
Excavating Quantum Information Buried in Noise
Department of Energy, Office of Science

Researchers developed two new methods to assess and remove error in how scientists measure quantum systems. By reducing quantum “noise” – uncertainty inherent to quantum processes – these new methods improve accuracy and precision.

Released: 25-Oct-2019 12:05 PM EDT
How Electrons Move in a Catastrophe
Department of Energy, Office of Science

Lanthanum strontium manganite (LSMO) is a widely applicable material, from magnetic tunnel junctions to solid oxide fuel cells. However, when it gets thin, its behavior changes for the worse. The reason why was not known. Now, using two theoretical methods, a team determined what happens.

Released: 24-Oct-2019 1:05 PM EDT
When Ions and Molecules Cluster
Department of Energy, Office of Science

How an ion behaves when isolated within an analytical instrument can differ from how it behaves in the environment. Now, Xue-Bin Wang at Pacific Northwest National Laboratory devised a way to bring ions and molecules together in clusters to better discover their properties and predict their behavior.

Released: 17-Oct-2019 1:05 PM EDT
Tune in to Tetrahedral Superstructures
Department of Energy, Office of Science

Shape affects how the particles fit together and, in turn, the resulting material. For the first time, a team observed the self-assembly of nanoparticles with tetrahedral shapes.

Released: 16-Oct-2019 2:05 PM EDT
Tracing Interstellar Dust Back to the Solar System’s Formation
Department of Energy, Office of Science

This study is the first to confirm dust particles pre-dating the formation of our solar system. Further study of these materials will enable a deeper understanding of the processes that formed and have since altered them.

Released: 15-Oct-2019 2:05 PM EDT
Investigating Materials that Can Go the Distance in Fusion Reactors
Department of Energy, Office of Science

Future fusion reactors will require materials that can withstand extreme operating conditions, including being bombarded by high-energy neutrons at high temperatures. Scientists recently irradiated titanium diboride (TiB2) in the High Flux Isotope Reactor (HFIR) to better understand the effects of fusion neutrons on performance.

Released: 14-Oct-2019 2:05 PM EDT
Better 3-D Imaging of Tumors in the Breast with Less Radiation
Department of Energy, Office of Science

In breast cancer screening, an imaging technique based on nuclear medicine is currently being used as a successful secondary screening tool alongside mammography to improve the accuracy of the diagnosis. Now, a team is hoping to improve this imaging technique.


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