Fate and impact of zero-valent copper nanoparticles on geographically-distinct soils.

ABSTRACT: The fate of engineered zero-valent copper nanoparticles (Cu NPs) in soils collected from geographically-distinct regions of the continental United States and incubated under controlled conditions was investigated with respect to NP affinity for soil surfaces and changes in speciation, as well as their impact on bacterial communities. Soil geochemical properties had a great influence on Cu NP migration and transformation. Translocation of Cu NPs was low in soils enriched in organic matter and high in clay and sandy soils. X-ray absorption spectroscopic analysis showed that the highest rates for transformation to Cu ions and adsorption complexes was in acidic soils. Although there was some change in overall bacterial community richness at the level of order in experimental soil, the level of

SUBMITTER: Shah V 

PROVIDER: S-EPMC7384298 | biostudies-literature | 2016 Dec

REPOSITORIES: biostudies-literature