An easy prepared probe, , was designed and synthesized, which displayed a significant fluorescence enhancement (over 38-fold) and obvious color change in the recognition of Al. The binding ratio of probe to Al was determined as 1:1, according to Job plot. The binding mechanism was fully clarified by the experiments, such as FT-IR spectrum, ESI-MS analysis, and H NMR titration. A DFT study further confirmed the binding mode of to Al. The limit of detection (LOD) for Al was determined as low as 0.70 µM, based on the fluorescence titration of . Moreover, the results from real sample experiments, including real water samples, test papers, and cell images, well-demonstrated that was capable of sensing Al in environmental and biological systems.
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| http://dx.doi.org/10.3390/molecules27082569 | DOI Listing |
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