期刊
ANALYTICAL METHODS
卷 5, 期 16, 页码 3909-3914出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ay40354h
关键词
-
资金
- National Key Scientific Program of China [2011CB911000]
- NSFC [20975034, 21177036, 21205068]
- Foundation for Innovative Research Groups of NSFC [21221003]
- National Key Natural Science Foundation of China [21135001]
- National Instrumentation Program [2011YQ030124]
- Ministry of Education of China [20100161110011]
- Hunan Provincial Natural Science Foundation [11JJ1002]
Aggregation-induced emission (AIE) dyes show different emission mechanism from traditional dyes, which were found to be nonluminescent in the solution state and emissive in the aggregate state, and have been well employed to design turn-on fluorescent probes for various targets. In this paper, we report for the first time a tetraphenylethylene-based AIE probe 1 for Al3+, which employed two diethylenetriamine units as the recognition ligand for Al3+. In the presence of Al3+, a large fluorescence enhancement was achieved for probe 1, which together with the low background fluorescence of free probe 1 allow for high sensitivity for Al3+, with a dynamic range from 2.0 x 10(-6) to 1.1 x 10(-5) M observed, and a detection limit of 5 x 10(-7) M for Al3+. The proposed probe shows high selectivity to Al3+. UV-vis absorption spectra experiments and dynamic light scattering measurements were performed to verify the AIE sensing mechanism of probe 1. Moreover, a 1 : 1 stoichiometry was estimated for the 1-Al3+ complex via fluorescence Job's method.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据