Fluorogenic and chromogenic detection of Cu2+ and Fe3+ species in aqueous media by rhodamine–triazole conjugate

Sensing materials developed and applied for bio-active Fe3+ recognition in water environment

“…2a). Owing to more stable sensor-Fe 3+ complex formed in the presence of Fe 3+ , the detection limit of selective Fe 3+ recognition was improved to 1.1×10 −9 M. The result was also confirmed by Rathinam,et al,34 through introducing the triazole ring that, not only was the solubility of the new bistriazole-appended rhodamine conjugate 5 enhanced greatly, did bistriazole units play a vital role in coordinating Fe 3+ . Besides rhodamine-based organic fluorescent sensors, 15 Goswami, et al, 35 prepared a spirobenzopyran-quinoline-based sensor and applied for Fe 3+ determination through a fluorescence turn-on signal in the red region.…”

A fluorescence turn-off chemosensor based on N-doped carbon quantum dots for detection of Fe3+ in aqueous solution

“…The design and development of fluorescence sensors for the detection of Fe 3+ is becoming an important issue because of the vital roles Fe 3+ plays in environmental, biological, and chemical systems [1][2][3][4][5]. Recently, a large number of fluorescent chemosensors were exploited as useful tools for the detection of Fe 3+ owing to their intrinsic sensitivity, selectivity, and capacity for rapid, real-time monitoring [6][7][8][9][10].…”

Optical sensor: a promising strategy for environmental and biomedical monitoring of ionic species

“…Zhang et al 243 reported a rhodamine based fluorescent sensor 174 (Fig. Rathinam et al 248 reported the simple and efficient method for the dual detection of Cu 2+ and Fe 3+ by respective coordination of triazoleetriazole and triazoleecarbonate in aqueous media using the BisTriazole Rhodamine B chemosensor 179 (Fig. The ligand 174 was colorless and exhibited no fluorescence while upon addition of ferric ions; it showed a significant enhancement in the absorption signal at 531 nm and an emission signal at 557 nm with the colorimetric change in the reaction solution for the naked eye detection.…”

“…1) ideally suitable for the implementation in the live cells imaging. [14][15][16] The use of optical sensors allows remote measurements and is therefore promising for environments where direct accessibility is hard and samples could be damaged when removed from their natural medium. The cells of multicellular eukaryotes can respond to the metal status of the whole organism as well as to their own status.…”