Newly described chemical reaction could have assembled DNA building blocks before life forms and their enzymes existed. — ScienceDaily

Chemists at Scripps Research have made a discovery that supports a surprising new view of how life originated on our planet. In a study published in the chemistry journal Angewandte Chemie, they demonstrated that a simple compound called diamidophosphate (DAP), which was plausibly present on Earth before life arose, could have chemically knitted together tiny […]

Electric ‘knob’ tunes chemical reaction rates in quantum gas — ScienceDaily

Building on their newfound ability to induce molecules in ultracold gases to interact with each other over long distances, JILA researchers have used an electric “knob” to influence molecular collisions and dramatically raise or lower chemical reaction rates. These super-chilly gases follow the seemingly counterintuitive rules of quantum mechanics, featuring exact units, or quanta, of […]

Protecting the brain from infection may start with a gut reaction

Some immune defenses of the brain may have their roots in the gut. A new study in mice finds that immune cells are first trained in the gut to recognize and launch attacks on pathogens, and then migrate to the brain’s surface to protect it, researchers report online November 4 in Nature. These cells were […]

Man almost dies from an allergic reaction to cold air

Stepping out of a hot shower into a cold bathroom almost killed a Colorado man, who had developed a serious allergic reaction to cold temperatures. The 34-year-old old man collapsed after getting out of the shower, and his family found him on the floor, according to a report of the case published Oct. 27 in […]