Green, Efficient Detection and Removal of Hg2+ by Water-Soluble Fluorescent Pillar[5]arene Supramolecular Self-Assembly
Abstract
:1. Introduction
2. Results and Discussion
2.1. Self-Assembly Behavior of G in Water
2.2. Host–Guest Complexation Studies in Water
2.3. Detection of Hg2+ with H⊃G
2.4. Detection Mechanism of Hg2+ with H⊃G
2.5. Reversibility and Application in the Rapid Removal of Hg2+
3. Conclusions
Supplementary Materials
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Conflicts of Interest
References
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Pillararene-Based Supramolecular Materials | Detection System, LOD and Sensing Mechanism | Ref. |
---|---|---|
DMSO/H2O solution (3:7, v/v), LOD = 0.1 μM, coordinated with the O atoms of pillar[5]arene and the N atoms of pyridine groups | [43] | |
Acetone, LOD = 2.3 μM, unique T−Hg2+−T pairings between thymine (T) and Hg2+ | [18] | |
Metal–organic gel, no LOD data, Fluorescence quenching at 470 nm | [44] | |
DMSO/H2O solution (3:7, v/v), LOD = 0.5 μM, fluorescence color change from 545 nm to 502 nm | [45] | |
DMSO/H2O (1:1, v/v), LOD = 0.043 μM, Fluorescence quenching at 485 nm, coordination between Hg2+ and probe | [46] | |
CHCl3/acetone/H2O (v/v/v = 1:4:495), LOD = 0.03 μM, Unique interaction thymine of G and Hg2+, Fluorescence turn on at 388 nm. | [21] | |
100% water, LOD = 0.7 μM, Fluorescence turn off, interaction with H and N, S atoms of G, removal and separation of Hg2+ | This work |
Sample | Spiked (μM) | Recovered (μM) | Recovery (%) |
---|---|---|---|
Lake Water | 20.0 | 17.4 | 87.0 |
26.7 | 22.3 | 83.7 | |
36.7 | 31.8 | 86.7 | |
40.0 | 34.7 | 86.8 | |
Tap water | 20.0 | 16.7 | 83.6 |
26.7 | 22.5 | 84.5 | |
30.0 | 26.9 | 89.7 | |
36.7 | 31.2 | 85.2 | |
40.0 | 35.6 | 89.0 |
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Jiang, X.; Wang, L.; Ran, X.; Tang, H.; Cao, D. Green, Efficient Detection and Removal of Hg2+ by Water-Soluble Fluorescent Pillar[5]arene Supramolecular Self-Assembly. Biosensors 2022, 12, 571. https://doi.org/10.3390/bios12080571
Jiang X, Wang L, Ran X, Tang H, Cao D. Green, Efficient Detection and Removal of Hg2+ by Water-Soluble Fluorescent Pillar[5]arene Supramolecular Self-Assembly. Biosensors. 2022; 12(8):571. https://doi.org/10.3390/bios12080571
Chicago/Turabian StyleJiang, Xiaomei, Lingyun Wang, Xueguang Ran, Hao Tang, and Derong Cao. 2022. "Green, Efficient Detection and Removal of Hg2+ by Water-Soluble Fluorescent Pillar[5]arene Supramolecular Self-Assembly" Biosensors 12, no. 8: 571. https://doi.org/10.3390/bios12080571