Many species of California lilac grow throughout the state, north to Humboldt and south to San Diego. Some species have developed an adaptation for arid climates: the stomatal crypt. This extremely rare anatomy intrigued a group of researchers, who characterized species with these crypts at the ALS. Their microtomography characterization revealed how the stomatal crypt helps plants survive drought. Read more »
ALS Work Using Microscopy/Imaging
These techniques use the light-source beam to obtain pictures with fine spatial resolution of the samples under study and are used in diverse research areas such as cell biology, lithography, infrared microscopy, radiology, and x-ray tomography.
Vertical gradient in atmospheric particle phase state: a case study over the alaskan arctic oil fields
Integrating chemical composition and phase state measurements demonstrated that carbonaceous-rich and organic-dominated particles exhibited higher viscosities, while inorganic-rich particles displayed lower viscosities. This finding establishes an association between composition and phase state, offering critical insights into the vertical stratification of Arctic particles. Read more »
A Clearer Look at Lithium-Ion Traffic Jams in Batteries
By directly visualizing the uneven insertion of lithium ions into electrodes with well-defined crystal orientations, researchers learned why fast charging decreases battery lifespan and performance. The work could provide insights into better battery utilization and help investigations of the surface insertion reaction during fast charging. Read more »
Bennu’s Ancient Brine Sheds Light on Recipe for Life
Researchers traced the evolution of minerals (“salts”) in an ancient brine, as recorded in samples from the asteroid Bennu, returned to Earth by NASA’s OSIRIS-REx mission. The results support the idea that asteroids like Bennu may have delivered water and essential chemical building blocks of life to Earth in the distant past. Read more »
Berkeley Lab Helps Explore Mysteries of Asteroid Bennu
The Advanced Light Source and Molecular Foundry provided powerful tools to study asteroid samples returned by NASA’s OSIRIS-REx mission to the asteroid Bennu. Researchers found a telltale set of salts formed by evaporation that illuminate Bennu’s watery past. Read more »
Native American Interns Explore Engineering Opportunities at the Lab
This last summer, Berkeley Lab hosted three students from Navajo Technical University in a DOE-funded initiative that partners national labs with learning institutions whose populations are historically underrepresented in science. The goal is to increase enrollment of Native American students in Navajo Tech engineering programs. Read more »
Magnetization Switching in Highly Magnetostrictive Microstructures
Researchers learned how the size, shape, and orientation of microstructures affect how they switch magnetization directions in response to an applied voltage. The work advances our understanding of strain-responsive composite materials for use in energy-efficient electronic applications such as memory devices, sensors, and actuators. Read more »
The Spatial Dynamics of Bone Remodeling During Lactation
To mobilize the minerals needed for milk production, osteocytes—the cells responsible for maintaining bone quality—facilitate the release of calcium and other minerals from the bone matrix surrounding them. In this study, researchers investigated how osteocytes balance the rapid release of calcium with maintaining bone integrity. Read more »
Elucidating Heterogeneous Li Insertion Using Single-Crystalline and Freestanding Layered Oxide Thin Film
The nanoscale surface insertion of lithium in a single-crystalline and freestanding LiNi1/3Mn1/3Co1/3O2 thin film is elucidated using in situ scanning transmission x-ray microscopy. The realization of advanced analysis through freestanding thin films is expected to be applicable to other systems subjected to external stimuli, such as hydrogen storage alloys, in the field of materials science. Read more »
Electron microscopy observations of the diversity of Ryugu organic matter and its relationship to minerals at the micro- to nano-scale
The work reported here addresses the question of how the organic matter (OM) in the Hayabusa2 samples compares and contrasts with OM from primitive carbonaceous chondrites, as observed primarily by transmission electron microscopy in concert with other microanalytical techniques. Read more »
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