The use of nonfluorescent azo dyes as dark quenchers in activatable optical bioprobes
based on the Förster resonance energy transfer (FRET) mechanism and designed to target …

The design of new molecules for photochemical studies typically requires knowledge of
spectral features of pertinent chromophores beginning with the absorption spectrum (λabs) …

Excess of heavy metal ions (HMIs) in the environment has numerous adverse effects on
ecology, human health and other living organisms. In recent years, this problem has raised …

Positional isomers of “benzothiazoles-pyrazole based azo dyes containing separate with
ESIPT core” are analyzed for their “linear and non-linear optical (NLO)” properties. Dyes are …

In this work, a new benzothiazole azo dye sensor (BTS) was synthesized, and its cation
binding affinity was studied using the colorimetric method, UV–vis, and 1 H NMR spectral …

Benzidine was coupled with ethyl cyanoacetate, and malononitrile, to give azo-hydrazo
products which in turn were cyclized by using hydrazine and phenyl hydrazine to give 4, 4' …

A number of monoazo dyes were synthesized by the reaction of 4-aminoacetophenone with
different substituted benzaldehydes to give a new series of chalcone derivatives. The …

Azo dyes are widely used for dyeing polyester fabrics but require optimization of properties
like color strength and fastness. Fourteen novel disperse azo dyes were synthesized from 2 …

Two groups of laterally substituted non-mesomorphic and liquid crystalline materials bearing
monoazo group were prepared and investigated via experimental and theoretical …

A new energy efficient ultrasound based technique is explored for the synthesis of azo dyes.
Higher reaction rates, energy efficiency and better thermal stability with uniform particle …