Redox cycling of Fe(II) and Fe(III) in magnetite by Fe-metabolizing bacteria.

The article focuses on redox cycling of iron minerals in magnetite by iron-metabolizing bacteria. It comments on the use of spectroscopic and magnetic measurements to show that the phototropic iron-oxidizing bacterium Rhodopseudomonas palustris used light energy to oxidize magnetite nanoparticles. It mentions that the anaerobic iron-reducing bacterium Geobacter sulfurreducens in co-culture was able to reverse this process.