All that is gold is not biochemically stable: Researchers stumble upon the lesson that typically stable gold nanoparticles can't always be trusted

Environmental nanoparticle researchers discover that gold isn't always the shining example of a biologically stable material that it's assumed to be. In a nanoparticle form, the normally very stable, inert, noble metal actually gets dismantled by a microbe found on a Brazilian aquatic weed.