The diminished glomerular filtration rate observed in previous studies of acute renal failure induced by uranyl nitrate has been ascribed to backflow of glomerular filtrate through necrotic tubular epithelium, since renal blood flow was essentially normal. Renal blood flow (xenon washout) and renal function were studied serially for 96 hours after the administration of uranyl nitrate (10 mg/kg,...

Citric acid is found along with uranyl in the subsurface of former nuclear facilities because of its use as a decontamination agent in the nuclear industry. Citrate’s metal chelating properties affect the mobility of uranyl in the subsurface and consequently, citrate biodegradation may significantly impact uranyl fate and transport. Under the non-growth conditions considered, low (micromolar) u...

The complexation of U(vi) at the proteinaceous surface layer (S-layer) of the archaeal strain Sulfolobus acidocaldarius was investigated over a pH range from pH 1.5 to 6 at the molecular scale using time-resolved laser-induced fluorescence spectroscopy (TRLFS) and U L(III)-edge extended X-ray absorption fine structure (EXAFS). The S-layer, which represents the interface between the cell and its...

Nitrate is a substance which influences the prevailing redox conditions in groundwater, and turn behaviour of U. The study groundwater an area with low-level radioactive sludge storage facilities has shown their contamination sulphate nitrate anions, uranium, some associated metals. uranyl ion content most contaminated NO3–Cl–SO4–Na borehole 2000 times higher (1.58 mg/L) than that background wa...