| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 742003 | Sensors and Actuators B: Chemical | 2014 | 6 Pages |
•Turn-on fluorescence and colorimetric Cd2+ sensor.•The sensing is done in 100% aqueous medium.•Iodide anion sensing through metal complex ensembles.•Sensing of Cd2+ in environmental samples.
A novel simple C3v-symmetric, completely water soluble quinoline based guanidinium Schiff's base system have been reported for the selective detection of Cd2+ in physiological environment through a turn-on fluorescence response. The cadmium complex is found to be highly selective toward iodide by turning off the fluorescence through the sequestration of Cd2+ from L1-Cd by the precipitation of CdI2. Detection limit for Cd2+ and iodide are found to be 51 ppb and 1 ppb, respectively. L1 is reversible toward Cd2+ and iodide and can be recycled. The receptor was used for the detection of Cd2+ in complex natural samples (tap, lake and river water).
