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Physical and Life Sciences
Santer to receive honorary graduate degree from the University of East Anglia
Lawrence Livermore National Laboratory (LLNL) climate scientist Benjamin Santer is among scientists, authors, actors, business leaders, lawyers, surgeons and philanthropists who will be heading to the University of East Anglia (UEA) to become honorary graduates next month. "Lord of the Rings" and "Titanic" actor Bernard Hill, "Apple Tree Yard" author Louise Doughty and…
LLNL-led study finds any single hair from the human body can be used for identification
Any single hair from anywhere on the human body can be used to identify a person. This conclusion is one of the key findings from a nearly year-long study by a team of researchers from Lawrence Livermore National Laboratory’s (LLNL) Forensic Science Center (FSC) and Michigan State University. The team’s study, published in Scientific Reports, a journal of Nature Magazine,…
Turning the switch on biofuels
Plant cell walls contain a renewable, nearly limitless supply of sugar that can be used in the production of chemicals and biofuels. However, retrieving these sugars isn’t all that easy. Imidazolium ionic liquid (IIL) solvents are one of the best sources for extracting sugars from plants. But the sugars from IIL-treated biomass are inevitably contaminated with residual…
LLNL, foundation seek to set up ALS consortium
Lawrence Livermore National Laboratory (LLNL) and the Livermore Lab Foundation (LLF) are exploring the establishment of a consortium that would leverage the Lab’s computing capabilities to identify causal factors for amyotrophic lateral sclerosis (ALS), or Lou Gehrig’s disease. Under a newly signed strategic partnership project agreement, the foundation will provide funds…
Phase-change materials from smartphones may lead to higher data storage, energy efficiency
Phase-change materials that are used in the latest generation of smartphones could lead to higher storage capability and more energy efficiency. Data is recorded by switching between glassy and crystalline material states by applying a heat pulse. However, to date it has not been possible to study what happens at the atomic level during this process. In a paper published…
Santer awarded for communicating science
Lawrence Livermore National Laboratory (LLNL) climate scientist Benjamin Santer is the recipient of the 2019 Sigma Xi William Procter Prize for Scientific Achievement. The Procter prize has been awarded since 1950 to a scientist who has made an outstanding contribution to scientific research and has demonstrated an ability to communicate the significance of this research…
Making metal with the lightness of air
Gold, silver and copper are heavy metals, but LLNL scientists can now make them nearly as light as air — in a form so tiny it can ride on a mosquito’s back. The groundbreaking science, part of a joint NIF/Physical and Life Sciences (PLS) project supported by the Laboratory Directed Research and Development (LDRD) Program, created these ultra-low density metal foams to give…
Art with a purpose: LLNL and startup company imagine the future of indoor carbon capture
Whether you’re busy at work or lounging around at home, indoor air quality probably isn’t anywhere on the list of things on your mind. But numerous studies have shown that the buildup of carbon dioxide in environments such as office buildings, schools and homes can lead to increased health issues and a decrease in productivity, decision-making and cognitive performance. A…
Precision fabrication of gold nanowires
A new generation of ultra-low-density (less than 20 milligrams per cubic centimeter) metal foams for laser targets has been made from metal nanowire suspensions via a unique freeze-casting process. In order to optimize the density, geometry, composition, and mechanical properties of these metal foams, it is necessary to develop nanowire stock materials of highly controlled…
Describing plutonium from first-principles theory
A new publication in the journal Advances in Physics by three Laboratory researchers describes plutonium from first-principles theory. This is the first time a first-principles explanation for the perplexing anomalous negative thermal expansion of the delta phase of plutonium has been reported. Per Söderlind, Alex Landa, and Babak Sadigh (all PHYS) reviewed developments in…
Shedding light on electron–laser interactions
When an electron encounters a laser pulse, it “wiggles” and radiates electromagnetic waves. As simple as this may sound, scientists have long struggled with an unresolved question: is the radiation energy provided by the laser or the electron? At low laser intensity, it has been experimentally confirmed that the radiation energy is entirely provided by the laser, while at…
Multilayer coatings for hard x rays
Multilayer interference mirrors are enabling components in x-ray optical systems. These mirrors consist of periodic or non-periodic structures of alternating thin film layers of two or more materials deposited on an optical substrate. Today’s applications and experimental facilities (including the National Ignition Facility) require novel, multilayer-based hard x-ray…
Researchers dish the dirt on soil microbes
Soil microbes are wild, unpampered and uncultured. But to understand their ecology, don't look in laboratory cultures, look in the soil. That’s exactly what Lawrence Livermore National Laboratory (LLNL) and Northern Arizona University (NAU) scientists did. Relationships between microbial genes and performance are often evaluated in the lab in pure cultures, with little…
Detection array wins FLC national award
In the nine years since a virtually all-encompassing Lawrence Livermore National Laboratory (LLNL) biological detection system was first introduced, it has become a major hit among technologies. Now called the Applied Biosystems’™ Axiom™ Microbiome Array (ABAMA), the biological detection technology has attracted more than 30 collaborators, has advanced into the marketplace…
Researchers discover an unexpected phase transition in the high explosive TATB
Lawrence Livermore National Laboratory (LLNL) scientists in collaboration with University of Nevada Las Vegas (UNLV) have discovered a previously unknown pressure induced phase transition for TATB that can help predict detonation performance and safety of the explosive. The research appears in the May 13 online edition of the Applied Physics Letters and it is highlighted…
Sustained nuclear fusion in the Z pinch concept
Controlling nuclear fusion for power production is expected to require large and expensive magnetic coils or laser systems to create, heat, confine, and control the hot plasma needed to sustain fusion reactions. The idea of directly driving a column of plasma with an electrical discharge, known as Z pinch, was a simple and early method envisioned as a possible path to…
Understanding effects of tissue-specific extracellular matrix molecules on brain cells
In vitro organ-on-a-chip experimental platforms hold great promise to predict human biology and human-relevant responses to chemical and biological stimuli. LLNL scientists and engineers are working to more faithfully recapitulate the brain microenvironment on multi-electrode arrays to study brain activity. In an article recently published in Scientific Reports, Livermore…
Designing sensors for environmental uranium detection
The ability to detect uranium (U) through environmental monitoring is of critical importance for informing water resource protection and nonproliferation efforts. While technologies exist for environmental U detection, wide-area environmental monitoring—sampling coverage over large areas not known to possess U contamination—remains a challenging prospect that necessitates…
Bioprinting of live cells enhances catalytic efficiency
Critical to the success of high-performance, three-dimensional (3D) printed living materials is the development of new ink materials and 3D geometries that favor long-term cell functionality. To address this challenge, a cross-directorate LLNL team, collaborating with National Renewable Energy Laboratory researchers, has invented a new bio-ink system using viable freeze…
Additive manufacturing paper makes waves
An article entitled “Additive Manufacturing of Complex Micro-Architected Graphene Aerogels” (doi: 10.1039/c8mh00668g) is featured among the most popular articles published by Materials Horizons in 2018. Materials Horizons is positioned as “the new home for rapid reports of exceptional significance on innovative materials.” The paper describes the fabrication of architected…
