Beryllium 7 dating
This immunologic response, called beryllium sensitization, can then develop into chronic beryllium disease, which causes scarring of the lung tissue and can be deadly.There is currently no cure for the disease, whose progression can be slowed by medication, oxygen therapy, and lung transplants in severe cases, according to the University of California San Francisco Medical Center.Interestingly, not all those who get exposed to potentially harmful levels of beryllium will experience an allergic, potentially deadly reaction."There is a genetic susceptibility component, which means that not everyone who is exposed is at risk of going on to develop sensitization, then chronic beryllium disease," Pepper said.In the study, researchers determined that the bodies of people who have this protein create a unique molecular "pocket," which captures beryllium ions and triggers an inflammatory response in the lungs.
But the chemists who discovered this unique property of beryllium also found that it is in fact highly toxic and should therefore never be tasted, according to Jefferson Lab.
"For the most part, it depends upon a genetic susceptibility," he said.
About 85 percent of people who develop chronic beryllium disease after getting exposed have an immune system protein known as HLA-DP2, according to recent research published in July 2014 in the journal Cell.
Beryllium was discovered in 1798 by the French chemist Louis Nicolas Vauquelin, who found it in the oxide form in beryl and a green-colored variety of beryl, emerald.
The metal was isolated in 1828 by two chemists, Friedrich Wölhler from Germany and Antoine Bussy from France, who independently reduced beryllium chloride (Be Cl) with potassium in a platinum crucible, according to the Jefferson Lab.
Beryl and bertrandite are the most important commercial sources of the element and its compounds.