Study of Formation and Thermodynamic Properties of Aqueous U(VI) – Uric Acid System by Time – Resolved Laser – Induced Fluorescence Spectroscopy (TRLFS)

Background
Due to the progression of uranium content in the bio-sphere at present, uranium is expected to be increasingly accumulated in the food chain and eventually in the living organisms. To get valuable information and to understand its toxicity, behaviour and distribution in such cellular level; knowledge about uranium (VI) speciation in biosystems will be useful for evaluating toxicity after uranium exposure. Little is known about interaction and behaviour of uranium with some biomolecules (e.g. urea and uric acid) that commonly present in biological fluids or in bio-system. In attempt to provide information in this context, we investigate some important thermodynamic data upon complexation of uranium with some single bioligands, viz., uric acid using TRLFS.