Dye-loaded zeolite L @silica core-shell composite functionalized with europium(III) complexes for dipicolinic acid detection

Dye-loaded zeolite L @silica core-shell composite functionalized with europium(III) complexes for dipicolinic acid detection
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用于吡啶二甲酸检测的铕(III)配合物功能化的染料负载沸石L@二氧化硅核壳复合材料

DOI:
10.1039/c0pp00273a
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发表时间:
2011-01
影响因子:
3.1
通讯作者:
Cao, Pengpeng
Cao, Pengpeng
中科院分区:
化学3区
文献类型:
--
作者:
Wang, Yige;Yue, Yuping;Li, Huanrong;Zhao, Qi;Fang, Yi;Cao, Pengpeng

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通过将不发光的铕(III)配合物固定到包覆在发光染料负载的沸石L纳米晶体表面的二氧化硅壳的表面上,已经开发了新型核-壳复合物。所得到的核-壳复合材料用于比率检测吡啶二羧酸(DPA)分子。位于沸石L主体的通道中的染料被保护免于与颗粒环境的任何相互作用,因此提供稳定的参考信号,其可以消除对用于分析物中DPA定量的仪器特定校准曲线的需要。
Novel core-shell composites have been developed by immobilization of non-luminescent europium(III) complexes onto the surface of silica shells that are coated on the surface of luminescent dye-loaded zeolite L nano-crystals. The obtained core-shell composites were used for the ratiometric detection of dipicolinic acid (DPA) molecules. The dyes located in the channels of the zeolite L host are protected from any interaction with the environment of the particles and therefore provide a stable reference signal which can eliminate the need for instrument-specific calibration curves for DPA quantification in an analyte.
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