College of Chemical Engineering, University of Science and Technology Liaoning, Anshan, China.
College of Mining Engineering, University of Science and Technology Liaoning, Anshan, China.
Luminescence. 2021 May;36(3):721-732. doi: 10.1002/bio.3993. Epub 2021 Jan 22.
In this study, a type of blue-emission fluorescent carbon dot was synthesized using malic acid, urea, and water. This material demonstrates strong stability to heat, ionic strength, and time. It was found that mercury ions can quench the blue fluorescence of the material, and using iodine ions, the fluorescence can be recovered. Hence, we designed an "off-on" mode to detect mercury and iodine ions using the carbon dots. The results showed that this material exhibits good selectivity and recovery rate. Concurrently, imaging experiments showed that this material demonstrates low cytotoxicity and can be used in cell fluorescence imaging. The study concludes that this material has wider application prospects in the future.
在这项研究中，使用马来酸、尿素和水合成了一种发蓝光的荧光碳点。该材料表现出对热、离子强度和时间的强稳定性。研究发现，汞离子可以猝灭该材料的蓝色荧光，而碘离子可以使其荧光恢复。因此，我们设计了一种基于碳点的“关-开”模式来检测汞和碘离子。结果表明，该材料具有良好的选择性和回收率。同时，成像实验表明，该材料具有低细胞毒性，可以用于细胞荧光成像。研究结论认为，该材料在未来具有更广泛的应用前景。
