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Accelerating phase field simulations to understand liquid-metal dealloying

News Article, March 3, 2025 • Liquid metal dealloying. The initial species fields (cA and cB at t=0) are contaminated with low-amplitude random white noise (left fields). Given the chaotic nature of the dealloying process, the initial noise perturbation eventually leads to widely different solid phase fields at late time (e.g., right fields, at t=6⁢μs, after 6 million time steps). When...

Catherine Mageeney is seeking a “kill shot” in bacterial pathogens

News Article, January 17, 2023 • Catherine Mageeney, a senior member of Sandia’s technical staff in bioengineering and biotechnology, has expertise in phage biology and genetics with broad applications and implications for scientific research. Phages, or viruses that infect bacteria, are the most numerous and diverse biological-organism in Earth’s biosphere. With approximately 1031 existing phages to be...

Deeper insight into radiation-formed defects

News Article, March 3, 2025 • Scientists at Sandia have created a new way to create atomic structures that show the important features of different materials. In the past, scientists could only recreate certain characteristics, like how atoms are arranged in a random mixture, using small crystal structures. Now, they have introduced a new method called...

DOE’s next-generation climate model empowers national security planning

News Article, August 24, 2026 • The Energy Exascale Earth System Model version 3 (E3SMv3), developed by Sandia researchers and collaborators as part of a large national lab effort, is a state-of-the-science tool designed to advance our understanding of the Earth and energy systems. This model simulates interactions between the atmosphere, land, rivers, oceans, and sea...

Enhancing metasurface performance potential

News Article, March 3, 2025 • By rotating the 𝐶3 symmetry breaking deformation ( 𝜑), the angular positions of the Dirac points and the corresponding polarization singularities for both bands can be controlled. New uses for metasurfaces in both regular and quantum optics are creating a need for better control over how light is polarized, especially...

Exascale Earth System Model will harness the next level of supercomputer

News Article, October 12, 2022 • Sandia visualization experts are working with climate scientists to visualize complex simulation results from the Energy Exascale Earth System Model (E3SM) as part of a DOE project sponsored by the Office of Science. The Sandia team has developed visualization workflows that incorporate DOE open-source visualization tools like ParaView with commercial...

High-quality feedstocks address sustainability challenges associated with rising global demand for protein

News Article, January 23, 2023 • RuBisCO variants increase Methionine and Lysine content. (Graphic courtesy of Sandia Licensing and Technology Transfer.) Ryan Davis, a principal member of Sandia’s technical staff in Bioresource and Environmental Security, and his team developed a high-quality feedstock to address sustainability challenges to meet the growing global demand for protein. RuBisCO (Ribulose-1,5-bisphosphate...

Image of a male scientist looking at a test tube

Imaging gas-phase methyl radicals

News Article, March 3, 2025 • Positive and negative correlations of measured gas-phase methyl and formaldehyde with predicted surface coverages Scientists at Sandia are studying how certain chemical reactions happen on surfaces, especially when using special techniques that allows them to see what is occurring while the reactions are taking place. This is important because many...

Imaging the visible emissions from plasmas in pulsed power experiments

News Article, March 16, 2023 • The center section of Sandia's Z Machine Low density plasmas are predicted to impact Sandia’s Z machine experiments in a variety of ways. Magnetic Resonance Tomography instability development during the target implosion can lead to broad trailing density profiles and potentially redistribute current away from the on-axis stagnation region. Low...

A technician gets a target ready for the center section in the Z machine pulsed power facility

Integrase-On-Demand (IOD): simplifying site-specific DNA integration across diverse microbes

News Article, August 24, 2026 • As part of the Intrinsic Control for Genome and Transcriptome Editing in Communities (InCoGenTEC) team, Sandia researchers and academic partners developed a new method called Integrase-On-Demand (IOD), which makes it easier to insert large stretches of DNA into the chromosomes of a wide variety of bacteria, even those that are...

Lignin processing with machine learning approaches

News Article, March 3, 2025 • The schematic diagram for screening of solvents for lignin dissolution. Using ionic liquids (IL) to break down and make use of lignin is really important for creating eco-friendly energy sources and a sustainable economy. Scientists at Sandia, who are part of the Joint Bioenergy Institute (JBEI), are looking closely at...

Predicting Arctic shoreline loss to protect critical infrastructure and security

News Article, August 24, 2026 • Arctic coastlines underlain by ice-rich permafrost are eroding at unprecedented rates as warming air and more powerful storm waves undermine frozen soils. This shoreline loss threatens everything from local communities and pipelines to strategic military sites, making reliable forecasts vital for national security and infrastructure planning. To meet this need,...

Rapid, high-fidelity turbulent combustion modeling for next-generation defense engines

News Article, August 24, 2026 • Accurately simulating how fuel burns in turbulent flows is essential for designing and running jet engines, rocket motors, and new hypersonic propulsion systems, which are important for national security. However, fully capturing the complex chemical reactions and fluid transport in these flames can require solving hundreds to thousands of coupled...

Sandia researchers examine chemistry in areas that help improve the safety, reliability, and performance of technologies involved in national security

News Article, August 24, 2026 • Sandia researchers examined how “cold” electrons, which have very little energy, can cause certain molecules made of nitrogen and oxygen such as N₂O₃ and N₂O₄ to break apart. These molecules are important to chemistry that occurs in high‐energy environments such as plasmas, combustion chambers, and atmospheric re-entry flows. Examining the...

Secure bioscience design project expands CRISPR molecular toolkit

News Article, January 17, 2023 • The Intrinsic Control for Genome and Transcriptome Editing in Communities (InCoGenTEC) project team, exploiting the CRISPR-associated (CRISPR-Cas) system in bacteria, developed a novel variant of the Cas13 enzyme by fusing it to translation Initiation Factor IF3, enhancing protein expression 21.3-fold above Cas13 alone. InCoGenTEC, led by NTESS for DOE’s Biological...

Stability of disconnections in solute atmosphere

News Article, March 3, 2025 • Disconnections, such as the disconnection dipole shown here from relaxed molecular dynamics simulations, are found on many grain boundaries and postulated to regulate boundary mobility. (b) An atomic-scale map of the segregation energy of dilute Ag atoms in a Cu matrix illustrating a zone of strong segregation (blue) for preferred...

The study of Z-pinches with engineered defects

News Article, October 13, 2022 • 3D-magnetohydrodynamic simulations of electrothermal instability growth by studying Z-pinches with engineered defects Electrothermal instability (ETI) is driven by Joule heating and arises from the dependence of resistivity on temperature. When a metal is Joule-heated through the boiling point, ETI drives azimuthally correlated surface density variations or “strata,” which provide the dominant seed...

3D-magnetohydrodynamic simulations of electrothermal instability growth by studying Z-pinches with engineered defects

Tunable quantum metasurface for scalable secure quantum technologies

News Article, August 24, 2026 • A team including researchers at Sandia’s Center for Integrated Nanotechnologies and Microsystems and Engineering Sciences Application (MESA) Complex developed a tunable optical metasurface that improves how much light is emitted from embedded Gallium Arsenide (GaAs) quantum dots (QDs) and at what wavelength this light is emitted. The QDs produce single...

Using the power of “super-small” to solve large-scale scientific problems

News Article, October 13, 2022 • Sandia builds a testbed for powerful quantum computing hardware and scientific applications. Try this thought experiment: imagine a small measurable quantity of something—perhaps a grain of sand or a point of light—then cut it in half, again and again. When you reach the smallest quantity, such as a photon of...