Microbes play key geoactive roles in the biosphere, particularly in the areas of element
biotransformations and biogeochemical cycling, metal and mineral transformations …

Bacteria are essential components of all natural and many engineered systems. The most
active fractions of bacteria are now recognized to occur as biofilms, where cells are attached …

The mineralogy of terrestrial planets evolves as a consequence of a range of physical,
chemical, and biological processes. In pre-stellar molecular clouds, widely dispersed …

Growing world demand for gold and decreasing discovery rates of ore deposits necessitates
new techniques for gold exploration. Current techniques for the detection of ppb level of …

Microorganisms produce and secrete secondary metabolites to assist in their survival. We
report that the gold resident bacterium Delftia acidovorans produces a secondary metabolite …

Combining multiple discrete components into a single multifunctional nanoparticle could be
useful in a variety of applications. Retaining the unique optical and electrical properties of …

While the role of microorganisms as main drivers of metal mobility and mineral formation
under Earth surface conditions is now widely accepted, the formation of secondary gold (Au) …

Deinococcus radiodurans is an extreme bacterium known for its high resistance to stresses
including radiation and oxidants. The ability of D. radiodurans to reduce Au (III) and …

Many bacteria in the environment have adapted to the presence of toxic heavy metals. Over
the last 30 years, this heavy metal tolerance was the subject of extensive research. The …

The mechanisms of gold bioaccumulation by cyanobacteria (Plectonema boryanum UTEX
485) from gold (III)− chloride solutions have been studied at three gold concentrations (0.8 …