We have performed near-ambient-pressure X-ray photoelectron spectroscopy on Co(0001) model catalysts during exposure to gases relevant to Fischer–Tropsch synthesis, i.e., CO and H2, at 0.25 mbar total pressure. At this pressure, CO seems to be more efficient at keeping the Co(0001) surface metallic than H2, which is the opposite behavior as reported in the literature for other pressure ranges. Read more »
A Deep-Learning Analysis of Lithium-Plating Dynamics in Batteries
Lithium-metal solid-state batteries are a promising technology, but the deposition (plating) of lithium metal on electrode surfaces remains a significant technical hurdle. Here, researchers used micro-computed tomography data to train an artificial intelligence model to identify characteristics vital to improving battery performance. Read more »
How Structure Affects the Activity of Lipid Nanoparticles
Berkeley Lab and Genentech scientists related the internal structures of lipid nanoparticles to their efficacy at drug delivery, using a combination of methods including x-ray scattering at the ALS. The work promises to expedite the development of drug delivery systems for the treatment of diseases such as COVID-19 and cancer. Read more » 
ALS in the News (September 2023)
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- Berkeley Lab awarded two new centers to counter climate change [CIWE/Ethan Crumlin]
- Accelerating sustainable semiconductors with ‘multielement ink’
- Fast-track strain engineering for speedy biomanufacturing
- SLAC fires up the world’s most powerful x-ray laser: LCLS-II ushers in a new era of science
- DOE selects five Berkeley Lab projects for FAIR awards [Emerging Properties through Controlled Phase Transformations for High Energy Sodium Ion Batteries/Wanli Yang]
- Scientists probe the source of key hydrocarbons on Earth—and in space
- Berkeley Lab launches research projects to support national biopreparedness and response efforts [Taskforce 5/Greg Hura]
- ‘Computer vision’ reveals unprecedented physical and chemical details of how a lithium-ion battery works
- Ana Kupresanin tapped to lead Berkeley Lab’s Scientific Data Division
- BCSB confirms design of stimulus-responsive, two-state proteins
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Accelerating Sustainable Semiconductors With ‘Multielement Ink’
Scientists have developed “multielement ink”—the first “high-entropy” semiconductor that can be processed at low temperature or room temperature. The new semiconducting material could accelerate the sustainable production of next-gen microelectronics, photovoltaics, solid state lighting, and display devices. Read more »
Insight into How Thermoresponsive Nanomaterials Work
By combining soft x-ray scattering with electron microscopy, researchers learned how nanoscale polymer assemblies in solution restructure in response to heating. The approach can be generalized to many complex, solution-phase, nanoscale processes, and holds promise for driving advances in applications from drug delivery to catalysis. Read more »
Precisely patterned nanofibres made from extendable protein multiplexes
Superhelical symmetry can be found in helical repeat proteins, and de novo helical repeat proteins are rigid and amenable to stacking in a head-to-tail fashion, which is an important factor in building up coincident symmetries. Now, using cyclic helical repeat proteins, Baker and colleagues generate protein nanostructures—as depicted on the cover—with coincident cyclic and superhelical symmetry axes. Read more »
Will Chueh to Receive the 2023 Shirley Award
Will Chueh of Stanford University is the 2023 winner of the Shirley award for Outstanding Scientific Achievement at the ALS. His selection recognizes Chueh’s deep contributions in operando soft x-ray spectromicroscopy for imaging electrochemical redox phenomena—images and movies for battery and electrocatalytic reactions. Read more »
ALS in the News (August 2023)
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- Junko Yano appointed director of Berkeley Lab’s Molecular Biophysics and Integrated Bioimaging Division
- R&D 100 awards honor Berkeley Lab innovations
- How scientists are accelerating next-gen microelectronics
- Berkeley Lab researchers receive DOE early career research awards
- FY24 budget outlook: DOE Office of Science
- Making renewable, infinitely recyclable plastics using bacteria
- Smith breaks new ground with domain wall research
- Berkeley Lab Director Mike Witherell on modernizing the Lab in support of tomorrow’s world-class science
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Fluctuations Mark Phase Changes in Magnetic Films
Researchers discovered that nanoscale spin fluctuations deep inside ordered states of a magnetic film can characterize phase transitions, independent of underlying magnetic interactions. The results provide a new way to predict and understand phase transitions in materials relevant to high-density, energy-efficient microelectronics. Read more »
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