A simple and sensitive spectrophotometric method for the determination of nitrogen dioxide in air and nitrite in water, soil, some analytical grade chemicals and tooth paste has been developed. Nitrogen dioxide in air is fixed as nitrite ion in alkaline sodium arsenite or triethanolamine absorber solution. The method is based on the reaction of nitrite in aqueous medium with known excess of Neu...

UNLABELLED BACKGROUND Imidazo[1,2-a]pyridines and pyrimidines are important organic fluorophores which have been investigated as biomarkers and photochemical sensors. The effect on the luminescent property by substituents in the heterocycle and phenyl rings, have been studied as well. In this investigation, series of 3-hydroxymethyl imidazo[1,2-a]pyridines and pyrimidines were synthesized an...

Described are the preparation and functional characterization of nanocrystalline and/or amorphous thin films comprising of neutral “molecular squares” of the form [Re(CO)3(Cl)(μ-L)]4 (L ) difunctional imine or azine ligand). The films are strongly adherent, stable in aqueous media, and characterized by comparatively few pinhole defects. Electrochemical transport experiments show that the materi...

leukemia is a hematological tumor in which the malignant myeloid or lymphoid subsets play a pivotal role. newly identified t helper cell 22 (th22) is a subset of cd4(+) t cells with distinguished gene expression, function and specific properties apart from other known cd4(+) t cell subsets.th22 cells are characterized by production of a distinct profile of effector cytokines, including interleu...

The multifaceted photodynamics of a simple azine based organic functional molecule namely 2-((Z)-((E)-(pyren-1-ylmethylene)hydrazono)methyl)quinolin-8-ol (PHQ) emphasizing its brilliant fluorescence emission redemption properties in aggregation state (AIEE) have been primarily explored through absorption and steady techniques. governing role photo-induced electron transfer (PET) rates active in...