Electroactive microorganisms markedly affect many environments in which they establish
outer-surface electrical contacts with other cells and minerals or reduce soluble extracellular …

Biogeochemical cycling of iron is crucial to many environmental processes, such as ocean
productivity, carbon storage, greenhouse gas emissions and the fate of nutrients, toxic …

Iron (Fe) is the fourth most abundant element in the earth's crust and plays important roles in
both biological and chemical processes. The redox reactivity of various Fe (II) forms has …

Heavy metals bring long-term hazardous consequences and pose a serious threat to all life
forms. Being non-biodegradable, they can remain in the food webs for a long period of time …

Minerals and organic matter (OM) may form intricate associations via myriad interactions. In
soils, the associations of OM with mineral surfaces are mainly investigated because of their …

Many iron (Fe) redox processes that were previously assumed to be purely abiotic, such as
photochemical Fe reactions, are now known to also be microbially mediated. Owing to this …

Chromium is a highly toxic non-essential metal for microorganisms and plants, and its
occurrence is rare in nature. Lower to higher chromium containing effluents and solid wastes …

In this article, we provide a critical review on the occurrence, formation, structure and stability
of schwertmannite–an enigmatic Fe (III) oxyhydroxy-sulfate mineral that is of widespread …

Extracellular electron transfer (EET) is the physiological process that enables the reduction
or oxidation of molecules and minerals beyond the surface of a microbial cell. The first …

Improvement of plant iron nutrition as a consequence of metal complexation by humic
substances (HS) extracted from different sources has been widely reported. The presence of …