Remarkably, the dissociation resulted in the formation of a neutral but excited sulfur atom, even though multiple electrons were ejected during the cascade. This phenomenon is at first surprising ...

Solar cells convert sunlight into clean energy—but if the solar cells themselves are made of toxic materials, it almost ...

Iron is an element. It is made of only one type of atom: iron atoms. Sulfur is another element. It contains only sulfur atoms, and nothing else, so it is pure. When we mix two different pure ...

New iron and sulfur atom assemblies. Other than the common [2Fe-2S], [3Fe-4S] and [4Fe-4S] clusters of Figure 1, the following structures have been discovered: (i) clusters with larger ...

Surprisingly, the biosynthesis of this simple derivative requires a minimum of four sulfur transfer reactions involving seven proteins. To identify genes required for tRNA modification ...