A rhodanine-based fluorescent chemosensor for sensing Zn2+ and Cd2+: Applications to water sample and cell imaging

Electrochemical and Spectral Studies on Benzylidenerhodanine for Sensor Development for Heavy Metals in Waters

“…Some rhodanine derivatives have antimicrobial properties [4][5][6]. Rhodanine derivatives can be used as pan-assay interference compounds for biological samples [7][8][9], for water treatment in efficient removal of HMs cations [10], and as fluorescence sensors for organic compounds [11] or HMs (Fe [12], Hg [13][14][15], and Cu [13]; Ag [15,16], Zn [17], and Cd [17] targets). There are no reported electrochemical sensors based on CMEs by using rhodanine derivatives for the detection of HMs.…”

Recent progress in cadmium fluorescent and colorimetric probes

“…Rhodanine and salicylidene Schiff bases can bind to metal ions strongly, and have good photophysical properties and water solubility. 83 Therefore, the probe 76 ( Fig. 28 ) was designed and synthesized by S. Park et al When probe 76 was used to detect Zn 2+ or Cd 2+ in aqueous medium ( λ ex = 329 nm), the fluorescence intensity at 519 nm increased significantly.…”

“…28 ) was designed and synthesized by S. Park et al When probe 76 was used to detect Zn 2+ or Cd 2+ in aqueous medium ( λ ex = 329 nm), the fluorescence intensity at 519 nm increased significantly. 83 However, the addition of cysteine can make the fluorescence induced by Cd 2+ disappear, while the fluorescence induced by Zn 2+ remain, so the distinction between Zn 2+ and Cd 2+ is realized. The binding constant of probe to Zn 2+ or Cd 2+ is 2.0 × 10 7 M −1 or 1.0 × 10 7 M −1 , and the detection limit for Zn 2+ or Cd 2+ is 1.07 μM or 1.37 μM.…”

A phenazine-imidazole based ratiometric fluorescent probe for Cd2+ ions and its application in in vivo imaging

“…[13][14][15][16][17][18] Although various Cd 2+ uorescent probes have been developed to date, the majority of them are based on changes in single-wavelength uorescence intensity (increase or decrease). [19][20][21][22][23][24][25][26][27][28][29][30] With comparison to the intensity-based measurement, ratiometric detection is more favorable since it can eliminate the interference from the external environment by simultaneously measuring the ratio of two emission bands and hence offers results that are more precise. Based on the literature survey, however, only a limited number of Cd 2+ uorescent probes worked through a ratiometric mechanism.…”