Its atoms were forged by nuclear reactions inside massive stars that exploded, seeding our galactic neighborhood with the raw materials for planets over billions of years before the solar system ...

Dioxygen serves at least three quite different roles that profoundly impact aerobic life. The most commonly appreciated function is its role as the terminal electron acceptor in processes such as ...

In principle, there is no lack of iron on Earth as the metal is one of the most abundant elements in the Earth's crust. However in the ocean, dissolved iron is very rare, since it reacts rapidly with ...

Using iron isotopes and atom probe tomography, or APT, they traced these oxidation-reduction reactions to create the first 3D "atomic maps" of the re-arrangement of different iron atoms in a small ...

Plant and Soil, Vol. 201, No. 1 (April (I) 1998), pp. 137-147 (11 pages) Iron has a pivotal and dual role in free radical chemistry in all organisms. On the one hand, free Fe can participate in Fenton ...