Coherent states of negative ion resonances in electron-molecule interaction are observed in experiments on e -- H2 and e -- D2 reactions. A forward-backward asymmetry is observed in the ejection of H- ions from H2 in this reaction, whereas the asymmetry in D- from D2 is weaker, but changes direction with electron energy. These results arise from attachment of a single electron to a molecule forming coherent superposition of odd and even parity states of negative ions.
The first 3-D spatial visualization tool has been developed for mapping 'omics' data onto whole organs. The tool helps researchers and clinicians understand the effects of chemicals, such as microbial metabolites and medications, on a diseased organ in the context of microbes that also inhabit the region. The work could advance targeted drug delivery for cystic fibrosis and other conditions where medications are unable to penetrate.
Researchers have determined how electrocatalysts can convert carbon dioxide to carbon monoxide using water and electricity. The discovery can lead to the development of efficient electrocatalysts for large scale production of synthesis gas -- a mixture of carbon monoxide and hydrogen.
We have come a long way from leaky sulfur-acid automobile batteries, but modern lithium batteries still have some down sides. Now a team of engineers has a different type of lithium sulfur battery that could be more efficient, less expensive and safer.
Scientists have discovered a surprising set of chemical reactions involving magnesium that degrade battery performance even before the battery can be charged up. The findings could steer the design of next-gen batteries.
Researchers use liquid metal to create atom-thick 2-D never before seen in nature. The research could transform how we do chemistry and could also be applied to enhance data storage and make faster electronics.
Wearable sensors are revolutionizing the tech-world, capable of tracking processes in the body, such as heart rates. They're even becoming fashionable, with many of them sporting sleek, stylish designs. But wearable sensors also can have applications in detecting threats that are external to the body. Researchers now report a first-of-its kind device that can do just that. And to stay fashionable, they've designed it as a ring.
Researchers take inspiration from natural chemical processes based on hydrogenase and photosystem II, to produce a single metal catalyst with both fuel cell and solar cell functionalities. The combination of these two processes into one system suggests great potential for biologically inspired energy generation technologies.
Gold has long been valued for its luxurious glitter and hue, and threads of the gleaming metal have graced clothing and tapestries for centuries. Determining how artisans accomplished these adornments in the distant past can help scientists restore, preserve and date artifacts, but solutions to these puzzles have been elusive. Now scientists have revealed that medieval artisans used a gilding technology that has endured for centuries.
Renowned for its soft texture and characteristic flavor, Wagyu beef -- often referred to as Kobe beef in the US -- has become one of the world's most sought-after meats. Now scientists report that they have detected several key odorants that contribute to the delicacy's alluring aroma.