Science news articles about 'reactive molecules'

... role in sterilising the soil, making the top layers hostile to microbial life. The reactive molecule has been seen around comets, but the method of production there is thought to be completely ...

... of California, Riverside have successfully created in the laboratory a class of carbenes, highly reactive molecules, used to make catalysts – substances that facilitate chemical reactions. Until now, ...

... of California, Riverside have successfully created in the laboratory a class of carbenes, highly reactive molecules, used to make catalysts - substances that facilitate chemical reactions. Until now, ...

... of low flow is the creation of highly reactive molecules called reactive oxygen species, which oxidize ... CyPA signals for the production of pro-inflammatory molecules like E-selectin and vascular cell ...

... brain increases a process called oxidative stress, caused by the formation of highly reactive molecules. The researchers found, however, that administering an antioxidant, which halts the harmful ...

... kept in check by the body's natural antioxidants, but when uncontrolled can lead to disease. These highly reactive molecules are created as a side effect when structures within all human cells, the ...

... 4,700 chemicals, which generate approximately 100 trillion reactive molecules per puff. ... Dr. Day. After glutathione reacts and neutralizes reactive species in the lungs, it becomes oxidized. Under ...

... The solution is to remove almost all the oxygen atoms, leaving only a few to keep the molecules reactive. The reactive molecules then can then be "upgraded" into different forms of fuel, and Dumesic's ...

... . Barry. The key event in PA-824 metabolism, they found, is the production of nitric oxide (NO) gas. "This highly reactive molecule," he adds, "is akin to a bomb blast that kills ...

... , short for superoxide dismutase 1. This enzyme protects the body from damage caused by free radicals, highly reactive molecules produced by cells during normal metabolism. Spinal ...

... they kick out nasty gunk. Defective mitochondria produce large quantities of oxygen free radicals—highly reactive molecules that damage DNA and cell structures. Comparing patients who ...

... part of a complicated cascade of chemical reactions that features competition with aerosols for highly reactive molecules that cleanse the air of pollutants. Aerosols can have either a warming or ...