用于 Al 识别的荧光显著开启探针及其应用。
A Significant Fluorescence Turn-On Probe for the Recognition of Al and Its Application.
机构信息
School of Laboratory Medicine, Youjiang Medical University for Nationalities, Baise 533000, China.
Department of Reproductive Medicine, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, China.
出版信息
Molecules. 2022 Apr 15;27(8):2569. doi: 10.3390/molecules27082569.
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.
设计并合成了一种简单制备的探针 ，它在识别 Al 时显示出显著的荧光增强（超过 38 倍）和明显的颜色变化。根据 Job 图确定探针 与 Al 的结合比为 1:1。通过 FT-IR 光谱、ESI-MS 分析和 1 H NMR 滴定等实验充分阐明了结合机制。DFT 研究进一步证实了 与 Al 的结合模式。基于 对 Al 的荧光滴定，确定 Al 的检测限（LOD）低至 0.70 µM。此外，包括实际水样、试纸和细胞图像在内的实际样品实验结果表明， 能够在环境和生物系统中感应 Al。
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