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Updated: Mar 3, 2026

Quantifying the Binding Interactions Between CuII and Peptide Residues in the Presence and Absence of Chromophores
Published on: April 5, 2022
AIE active turn-off fluorescent probe for the detection of Cu2+ ions
Mehboobali Pannipara1, Abdullah G Al-Sehemi2, Abul Kalam2
1Research Center for Advanced Materials Science (RCAMS), King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia.
Abstract:
A novel AIE active Schiff base compound (receptor 1) has been designed, synthesized and characterized spectroscopically. Receptor 1 show weak emission in solution state but emit strongly in solid state. The investigation on the AIE behavior of receptor 1 using solvent-non-solvent (THF-Water) interaction reveals a maximum PL intensity on reaching the water fraction 90% (fw=90) due to nanoaggregation. Furthermore, demonstration of metal ion sensing application of receptor 1 unravel that it could act as selective and sensitive sensor for Cu2+ ions in aqueous solution via fluorescence "turn-off" manner. The quenching behavior of receptor 1 in presence of Cu2+ ions were evaluated using Stern-Volmer plot.

