Liquid crystal samples were found to exhibit up to four levels of chirality, despite being made up of achiral molecules. The work sheds light on how molecular properties and competing interactions “propagate” order from the molecular level up to the microscale, leading to complexity similar to that found in biological materials. Read more »
All News & Updates
A Citizen-Science Computer Game for Protein Design
Using the computer game, “Foldit,” nonexpert citizen scientists designed new proteins whose structures, verified at the ALS, were equivalent in quality to and more structurally diverse than computer-generated designs. The work shows the potential of using crowd-based creativity in the design of new proteins for fighting illness and disease. Read more »
X-Ray Experiments Contribute to Studies of a Drug Now Approved to Combat Tuberculosis
The U.S. Food and Drug Administration has approved a new antibiotic that, in combination with two existing antibiotics, can tackle one of the most formidable and deadly treatment-resistant forms of the bacterium that causes tuberculosis. Studies exploring the structure and function of the new drug benefited from x-ray experiments at the ALS. Read more »
Study Reveals ‘Radical’ Wrinkle in Forming Complex Carbon Molecules in Space
Scientists have identified several avenues by which ringed molecules known as polycyclic aromatic hydrocarbons can form in space. PAHs—which also occur on Earth in emissions and soot from the combustion of fossil fuels—could provide clues to the formation of life’s chemistry in space as precursors to interstellar nanoparticles. Read more »
The Chemistry of Art
To learn more about the chemical processes involved in aging oil paints in microscopic and nanoscale detail, researchers conducted a range of studies that included 3D x-ray imaging of a paint sample. The study could have broader implications for conservation based on the observed chemistry of oil paints. Read more »
Chemical and Morphological Origins of Improved Ion Conductivity in Perfluoro Ionene Chain Extended Ionomers
Resonant x-ray scattering and x-ray absorption spectroscopy with elemental sensitivity unravel structural features tied to water–ion domains and discern sulfur-containing groups in sulfonated ionomers, which help delineate chemical factors controlling their phase-separated morphology and governing ion transport. Read more »
SSURF Sponsors Congressional Visit to Bay Area User Facilities
The Society for Science at User Research Facilities (SSURF) sponsored a delegation of Congressional staffers to visit national user facilities in the Bay Area this week. On Tuesday, they stopped by the ALS to learn about our capabilities and scientific impact first-hand. Interested in volunteering to support SSURF and its mission to provide a consolidated voice for those interested in research conducted by users of U.S. national user facilities? Contact ALS Communications Director and SSURF Board Member Ashley White (awhite@lbl.gov) to learn more.
LAAAMP Brings International Researchers to the Advanced Light Source
This summer, the ALS hosted researchers from Mexico and Egypt as part of LAAAMP—Lightsources for Africa, the Americas, Asia and Middle East Project. Their studies on solar cells and mummy bones exemplify the benefit of increasing access to synchrotron-enabled research. Read more »
Curtis Gomez, Electrical Safety Officer
Curtis Gomez recently became the ALS electrical safety officer. Besides looking out for hazards, his work in motor controls coordination draws from a TV and radio background—and working for a local band that made it big. Read more »
Microelectronics Town Hall Looks Beyond Moore’s Law
On August 16, Berkeley Lab hosted a town hall on future research and collaboration opportunities in microelectronics—a deceptively simple catchword that encompasses the full range of integrated developments needed to push beyond Moore’s Law. Eli Rotenberg gave one of several short talks about how the ALS fits into this effort. Read more »
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