Colorimetric and fluorescence turn-on sensor for biologically important anions based on carbazole derivative

A facile synthesis of a novel 4-hydroxyl-3-azo coumarin based colorimetric probes for detecting Hg2+ and a fluorescence turn-off response of 3CBD to Fe3+ in aqueous environment

“…5,6 Consequently, these technological advancements come at the cost of environmental pollution, which leads to new diseases and many other implications in the ecosystem. [6][7][8][9][10] Industrial revolutions have been at the center of environmental pollution, especially in the areas such as agriculture for synthetic fertilizers 9,11,12 and pesticides, 8,13,14 food technology, [15][16][17] lm industries 9,18-20 and many others. 6,9,21,22 In essence, the ever-increasing presence of dissolved cations and anions in environmental streams, has become the main source of primary consumption of toxic substances.…”