Title
Quinoline based probes: Large blue shifted fluorescent and electrochemical sensing of cerium ion and its biological applications
Author
N. Bhuvanesh, S. Suresh, K. Velmurugan, A. Thamilselvan, R. Nandhakumar
Year
2020
Journal
Journal of Photochemistry and Photobiology A: Chemistry
Abstract
Quinoline based fluorescent probes were formulated for the precise detection of cerium ions. Probes 1 and 2 detect Ce3+ ion as opposed to other metal ions through fluorescence in HEPES buffered CH3CN-H2O (1:1, (v/v) HEPES =50 mM, pH = 7.4) solution. The Ce3+ ion recognition process follows the π to π* transitions and intramolecular charge transfer (ICT) mechanisms. The LOD (Limit Of Detection) of probes 1 and 2 for sensing Ce3+ ion were found to be 1.60 × 10−9 M and 0.17 × 10−9 M, respectively. These probes are further utilized to detect Ce3+ ion by electrochemical studies. The practical applications of the probes are tested for varied biological applications.
Instrument
V-630, FP-8200
Keywords
Absorption, Fluorescence, Chemical stability, Ligand binding, Quantitation, Sensors, Agriculture and environmental, Materials