A highly sensitive, single selective, fluorescent sensor for Al3+ detection and its application in living cell imaging

Rhodamine–naphthalene conjugate as a novel ratiometric fluorescent probe for recognition of Al3+

“…There are more and more Al 3+ selective fluorescent sensors being reported in recent years [9][10][11][12][13][14][15][16][17]. However, most of them are mainly based on the change of single emission intensity such as PET which is easy to be affected by instrumental efficiency and environmental condition [18][19][20][21][22]. The design of ratiometric probes which can eliminate these deficiencies through simultaneous recording ratio signals of two emissions at different wavelengths is still challenge.…”

A Naphthalimide-Based Fluorescence “Off-on-Off” Chemosensor for Relay Detection of Al3+ and ClO−

“…Among them, small-molecule optical probes, which exhibited many merits including high selectivity and sensitivity, tunability, simple manipulation, and direct visualization, were employed as a powerful tool in the facet of trace analysis and rapid detection for various analytes (Qin and Yang, 2015; Wang et al, 2015; Simon et al, 2016; Liu et al, 2017; Murugan et al, 2017). Up to now, lots of papers that one probe only for the detection of one special analyte such as Al 3+ ion (Tang et al, 2015; Gupta and Kumar, 2016; Xie et al, 2017) or Hypochlorous acid (Zhang et al, 2017) had been reported, but the design idea, one fluorescent probe for successively recognition of two different analytes, had gained increasing attention in considering its high efficiency and potential cost reduction (Wang et al, 2014; Ye et al, 2014; Zhao et al, 2015; Wen and Fan, 2016; Xie et al, 2016; Zhai et al, 2016; Zhu et al, 2016; Wu et al, 2017). Many excellent probes had been reported for relay recognition of two different ions through fluorescent “off-on-off” (Borasea et al, 2015; He et al, 2015; Zhao et al, 2015; Rai et al, 2016; Bhattacharyya et al, 2017; Das et al, 2017; Jo et al, 2017; Dwivedi et al, 2018; Feng et al, 2018; Lim et al, 2018) or “on-off-on” (Diao et al, 2016; Zhao et al, 2016; Sarkar et al, 2017) mode.…”

A ratiometric Al3+ ion probe based on the coumarin-quinoline FRET system

“…Thus, detection of Al 3+ is very significant to monitor the concentration level in the environment and minimize direct effect of the Al 3+ ion on human health [4] . Numerous probes for Al 3+ have been reported which displayed a decrease or increase in the emission intensity [5][6][7][8][9][10][11][12][13][14][15][16][17][18] . Most of them are fluorescence intensity-based probes, which mean that ion detection depends on a simple change of fluorescence intensity arising from metal-binding, and tends to be significantly influenced by the excitation power, detector sensitivity and instrument environmental factors, especially at very low ions concentrations.…”