Science news articles about 'trace chemicals'

... be present for cross replication to occur at all, and the higher the concentration of this target chemical, the faster the system will replicate. In their paper, Joyce and his colleagues showed ...

... detect explosives or toxins in the atmosphere. Such lasers could also be used in commercial applications like trace chemical analysis, pollution monitoring, and free space communication. But first, ...

... tracker works by infecting them with a "designer" strain of TB, developed by the Hopkins team to absorb radio-tracing chemicals. The chemicals light up the germ and any infected tissues in the ...

... from the cave roof. Those drops of water pick up trace chemicals in their path through air, soil and rocks, and deposit the chemicals in the stalagmite. "They're like tree rings made out ...