Advances on fluorescence chemosensors for selective detection of water

Talanta. 2024 Apr 9;275:126089. doi: 10.1016/j.talanta.2024.126089. Online ahead of print.ABSTRACTWater, although an important part of everyday life, is acts as one of the most significant contaminants in various applications such as biomedical monitoring, chemical production, petroleum-based fuel and food processing. In fact, the presence of water in other solvents is a huge concern. For the quantification of trace water content, different methods such as Karl-Fischer, electrochemical, nuclear magnetic resonance, chromatography, and thermogravimetric analysis have been used. Although every technique has its own benefit, each one suffers from several drawbacks that include high detection costs, lengthy procedures and specialized operations. Nowadays, the development of fluorescence-based chemical probes has become an exciting area of research for the quick and accurate estimation of water content in organic solvents. A variety of chemical processes such as hydrolysis reaction, metal ions promoted oxidation reaction, suppression of the -C═N isomerization, protonation and deprotonation reactions, and molecular aggregation have been well researched in the last few years for the fluorescent detection of trace water. These chemical processes eventually lead to different photophysical events such as aggregation-induced emission (AIE), aggregation-induced emission enhancement (AIEE), aggregation-caused quenching (ACQ), fluorescent resonance energy transfer (FRET), charge transfer,...

Source: Talanta - April 12, 2024 Category: Chemistry Authors: Pragyan Parimita Dash Arup Kumar Ghosh Patitapaban Mohanty Rubi Behura Sunita Behera Bigyan R Jali Suban K Sahoo Source Type: research