Showing stories 1-25 out of 177 stories. 1 | 2 | 3 | 4 | 5>>>
7-Apr-2017 Scientists watch a molecule protect itself from radiation damage
When DNA is hit with ultraviolet light, it can lose excess energy from radiation by ejecting the core of a hydrogen atom -- a single proton -- to keep other chemical bonds in the system from breaking. To gain insight into this process, researchers used X-ray laser pulses from the Linac Coherent Light Source (LCLS) at the Department of Energy's SLAC National Accelerator Laboratory to investigate how energy from light transforms a relatively simple molecule, 2-thiopyridone.
27-Feb-2017 New droplet-on-tape method assists biochemical research at X-ray lasers
Scientists at the Department of Energy's Lawrence Berkeley National Laboratory, SLAC National Accelerator Laboratory, Brookhaven National Laboratory, and other institutes designed a new assembly-line system that rapidly replaces exposed biological samples by moving droplets along a miniature conveyor belt, timed to coincide with the arrival of the X-ray pulses. The droplet-on-tape system now allows the team to study the biochemical reactions in real-time from microseconds to seconds, revealing the stages of these complex reactions.
16-Feb-2017 Protein structure solved from smallest crystals yet
An international team of scientists used an X-ray laser at the Department of Energy's SLAC National Accelerator Laboratory to determine the structure of an insect virus's crystalline protein 'cocoon.'
13-Jan-2017 Study of microbes reveals new insight about Earth's geology and carbon cycles
Tiny microbes play a big role in cycling carbon and other key elements through our air, water, soil and sediment. Researchers who study these processes at Argonne National Laboratory have discovered that these microbial communities are significantly affected by the types of carbon 'food' sources available. Their findings reveal that the type of carbon source affects not only the composition and activity of natural microbial communities, but also in turn the types of mineral products that form in their environment.
22-Dec-2016 For critical marine low clouds, a research and observation plan
Marine low clouds hover in the lowest couple of kilometers above the world's oceans. They produce little but drizzle, and could never match their deeper mid-continent cousin clouds for dramatic weather and severe storms. But marine low clouds are vastly important to the world's climate and energy balance.
Scientists have witnessed the birth of atmospheric ice clouds, creating ice cloud crystals in the laboratory and then taking images of the process through a microscope, essentially documenting the very first steps of cloud formation. The team took time-lapse movies of the first few seconds when a particle attracts water vapor, forming ice crystals that become the core of icy cirrus clouds - the high, wispy clouds that act much like a blanket for our planet.
15-Dec-2016 Data storage upgrades future-proof ARM field sites -- for now
Throughout 2016, Cory Stuart, ARM's Site Data System (SDS) and Cyber Security Manager, and his team at Argonne National Laboratory have been methodically visiting all ARM sites to upgrade the data systems, especially storage capacity.
28-Nov-2016 'Brighter than a billion suns': SLAC studies featured in TEDx Talk
Phil Manning and his colleagues have used synchrotron light for nearly a decade to help interpret the chemical signatures locked within fossilized life. Bright X-rays have allowed them to study fossilized worm burrows, recreate pigment patterns in ancient bird feathers, see how Jurassic dinosaur bones heal and image the living chemistry of 50-million year old plant fossils.
1-Sep-2016 Blowing bubbles to catch carbon dioxide
Sandia and UNM researchers developed a bio-inspired bubble-like membrane to capture CO2 from coal-fired power plants efficiently. The CO2 Memzyme could capture CO2 equivalent to planting 63 million trees and letting them grow for 10 years from just one power plant.
11-Jul-2016 Sandia storing information securely in DNA
Marlene and George Bachand, Sandia National Laboratories bioengineers at the Center for Integrated Nanotechnologies, developed a new method for encrypting and storing sensitive information in DNA.
19-May-2016 Berkeley Lab's OpenMSI licensed to ImaBiotech
Two years ago, Lawrence Berkeley National Laboratory (Berkeley Lab) researchers developed OpenMSI--the most advanced computational tool for analyzing and visualizing mass spectrometry imaging (MSI) data. Last year, this web-available tool was selected as one of the 100 most technologically significant new products of the year by R&D Magazine. Now, OpenMSI has been licensed to support ImaBiotech's Multimaging™ technology in the field of pharmaceutical and cosmetic research and development.
17-May-2016 Lessons from cow eyes
Cornea tissue is a promising biomaterial for Brad Boyce, a Sandia National Laboratories materials scientist. More than a decade after Boyce and his co-workers investigated the biomechanics of dissected cow corneas, their findings have been confirmed in healthy human eyes.
12-May-2016 Solving the biomass puzzle
Biomass holds great promise as a petroleum replacement, but unlocking its true potential remains a puzzle. A group of researchers at Iowa State University and the US Department of Energy's Ames Laboratory hope to develop the pieces of that puzzle to create a clearer picture of what takes place within a plant and how that applies to its downstream uses as biomass.
The Department of Energy's Office of Science is the single largest supporter of basic research in the physical sciences in the United States and is working to address some of the most pressing challenges of our time.