UPR/Titanium dioxide nanocomposite: Preparation, characterization and application in photon/neutron shielding.

The aim of present investigation is to fabricate TiO reinforced novel composites as an alternate nuclear radiation shields. Unsaturated polyester resin has been reinforced by the incorporation of different weight proportions of titanium dioxide (5, 10, 15 and 20 wt%) nanoparticles. Accordingly, mass and linear attenuation coefficients (μ & μ), half and tenth value layers (HVL & TVL), relaxation length (λ) and effective atomic numbers (Z) have been computed.

Urea biosensors: A comprehensive review.

Present study is specially designed for the recent advances in biosensors to detect and quantify urea concentration. Urea (carbamide) is an organic compound made up of the carbonyl (C=O) functional group with two -NH groups having chemical formula CO (NH ) . In nature, urea is found everywhere as the result of various processes, and in the human body, urea is an end product of nitrogen metabolism.