Guangxi Colleges and Universities Key Laboratory of Food Safety and Detection, Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, Guilin University of Technology, Guilin, Guangxi, 541004, People's Republic of China.
J Fluoresc. 2019 Sep;29(5):1221-1226. doi: 10.1007/s10895-019-02438-5. Epub 2019 Oct 10.
Development of optical probe for the detections of Fe and Cu is one of the most active and interesting research directions in analytical chemistry because of their vital roles in the environment protection and human health. Herein, a turn on optical rhodamine B-based probe (probe 1) with the significant changes in color and fluorescence has been prepared. The color of this probe solution changed from colorless to amaranth in the presence of Fe and to pink in the presence of Cu, which is promising for the qualitative recognition of Fe and Cu. More importantly, probe 1 could be used for the quantitative analysis of Fe and Cu by fluorescence enhancement. The detection limits for Fe and Cu reached 8.1 × 10 M and 4.8 × 10 M, respectively. Furthermore, it was found that this probe can also be used for fluorescence imaging of Fe and Cu in living cells.
开发用于检测 Fe 和 Cu 的光学探针是分析化学中最活跃和最有趣的研究方向之一，因为它们在环境保护和人类健康方面发挥着重要作用。在此，我们制备了一种基于罗丹明 B 的光学探针（探针 1），该探针在 Fe 存在下颜色和荧光有明显变化，在 Cu 存在下颜色变为粉红色，有望用于定性识别 Fe 和 Cu。更重要的是，探针 1 可通过荧光增强用于 Fe 和 Cu 的定量分析。Fe 和 Cu 的检测限分别达到 8.1×10-7 M 和 4.8×10-7 M。此外，还发现该探针还可用于活细胞中 Fe 和 Cu 的荧光成像。
