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- W2894801267 abstract "Abstract In this work, we proposed a ratiomatric fluorescent strategy for sensing Fe2+ by using the carbon dots (CDs) doped lanthanide coordination polymers (Ln-CPs). Herein, the Ln-CPs were prepared by self-assemble of adenosine monophosphate (AMP) with Tb3+ (AMP-Tb) through coordination reaction, and CDs were encapsulated during the assembly process as guest materials. A cofactor, phenanthroline (Phen), could incorporate into the CDs@AMP-Tb, and strongly sensitized the luminescence of Tb3+ through energy transfer. Therefore, the obtained CDs@AMP/Phen-Tb could emit dual fluorescence signals. One is the characteristic emission of Tb3+, which could be specifically quenched by Fe2+ due to the high affinity between Phen and Fe2+. Another is originated from CDs encapsulated in Ln-CPs, which did not change in the presence of Fe2+. Subsequently, CDs@AMP/Phen-Tb was chosen as the ratiomatric fluorescent probe for sensing Fe2+, where the fluorescence of Tb3+ was quenched serving as the reporter, while that of CDs remained constant serving as the internal control for self-calibration. In addition, with the help of a reducing agent, which can reduce Fe3+ to Fe2+ efficiently, the proposed method can also be applied in selective detection Fe3+. By taking advantage of the unique property of Ln-CPs, the proposed strategy promises flexibility for designing of a series of ratiometric fluorescent sensors and expanded in practical applications." @default.
- W2894801267 created "2018-10-12" @default.
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- W2894801267 date "2019-01-01" @default.
- W2894801267 modified "2023-10-17" @default.
- W2894801267 title "Ratiometric fluorescence sensing of Fe2+/3+ by carbon dots doped lanthanide coordination polymers" @default.
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- W2894801267 doi "https://doi.org/10.1016/j.jlumin.2018.10.001" @default.
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