A colorimetric and fluorescent sensor for sequential detection of copper ion and cyanide

Quinazoline–benzimidazole hybrid as dual optical sensor for cyanide and Pb2+ ions and Aurora kinase inhibitor

“…Development of ratiometric sensors has its own significance because it measures the optical intensities at two different wavelengths which provide the dynamic range of analyte concentration measurement without interference of ligand. Thus, development of ratiometric chemosensors for poisonous ions selectively is of great importance [30][31][32][33][34][35][36][37]. In the present manuscript we have developed quinazoline-benzimidazole hybrids for selective and ratiometric estimation of most poisonous ions, CN -and Pb 2+ ions.…”

Two sensors based on π-extended TTF: synthesis and high selectivity for copper(II)

“…Cu 2+ 15,16 . Upon the addition of more Cu 2+ , the fluorescence intensity was somewhat decreased, it may be attributed to the paramagnetic nature of Cu 2+ and the oxidation of the TTF unit 14 . Compared to exTTF-DPA, exTTF-ADPA possesses the similar properties.…”

A colorimetric chemosensor for the sequential detection of copper ion and amino acids (cysteine and histidine) in aqueous solution

“…45 That is, the red shi indicates that the energy gap of ICT band decreases, upon binding metal ions to the electron withdrawing moieties. 46 Likewise, we assume that the red shi of 1-Cu 2+ Scheme 1 Synthetic procedure of 1.…”