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首页> 外文期刊>Advanced Functional Materials >Function-Targeted Lanthanide-Anchored Polyoxometalate- Cyclodextrin Assembly: Discriminative Sensing of Inorganic Phosphate and Organophosphate
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Function-Targeted Lanthanide-Anchored Polyoxometalate- Cyclodextrin Assembly: Discriminative Sensing of Inorganic Phosphate and Organophosphate

机译：功能靶向镧系元素锚定的多氧化嘧啶 - 环糊精组装：无机磷酸盐和有机磷酸磷酸盐的鉴别感

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摘要

Polyoxometalate (POM) clusters containing lanthanide ion (LnPOM) possess excellent luminescence features, but the envisaged applications are hindered by the challenges in integration into functional architectures. Herein, a novel cross-linked cyclodextrin (CL-CD) and LnPOM composite is developed and applied for discriminative detection of inorganic and organic phosphate phases. For inorganic phosphates, a ratiometric fluorescence response is demonstrated with excellent selectivity, and anti-interference ability in complex analyte mixtures. The outstanding performance is attributed to the high affinity of POM and distinct interactions between La3+ and Eu3+ with the phosphate. For organophosphates, a "signal-off" fluorescence response for p-nitrophenyl-substituted organophosphates is discovered due to the encapsulation of nitrophenyl group into the hydrophobic cavity of CD that enhances the interactions between POM and p-nitrophenyl phosphate. The discriminative responses of CL-CD-LnPOM to inorganic phosphates and organophosphates bring new insights into POM-based fluorescence probes for the detection of inorganic and organic phases based on the intrinsic structural difference between the phosphate analogs.
机译：含有镧系元素（LNPOM）的多氧化素（POM）簇具有优异的发光特征，但是通过集成到功能架构中的挑战来阻碍设想的应用。在此，开发了一种新型交联环糊精（CL-CD）和LNPOM复合材料，并施加了无机和有机磷酸阶段的鉴别检测。对于无机磷酸盐，具有优异的选择性和复合分析物混合物中的抗干扰能力来证明比率荧光反应。出色的性能归因于POM的高亲和力和LA3 +和EU3 +与磷酸盐之间的不同相互作用。对于有机磷酸盐，由于硝基苯的包封在CD的疏水腔中，发现了对硝基苯基取代的有机磷酸磷酸的“信号关”荧光响应在CD的疏水腔中，以增强POM和对硝基苯基磷酸酯之间的相互作用。 Cl-CD-LNPom对无机磷酸盐和有机磷的辨别反应为基于POM的荧光探针提供了新的识别，用于检测无机和有机相的基于磷酸盐类似物的内在结构差异。

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  • 来源
    《Advanced Functional Materials》 |2021年第45期|2104572.1-2104572.11|共11页
  • 作者

    Li Qiuju; Wang Dandan; Fang Xian; Wang Xingyi; Mao Shun; Ostrikov Kostya (Ken);

  • 作者单位

    Tongji Univ State Key Lab Pollut Control & Resource Reuse Biomed Multidisciplinary Innovat Res Inst Shanghai East Hosp Coll Environm Sci & Engn 1239 Siping Rd Shanghai 200092 Peoples R China;

    Tongji Univ State Key Lab Pollut Control & Resource Reuse Biomed Multidisciplinary Innovat Res Inst Shanghai East Hosp Coll Environm Sci & Engn 1239 Siping Rd Shanghai 200092 Peoples R China;

    Tongji Univ State Key Lab Pollut Control & Resource Reuse Biomed Multidisciplinary Innovat Res Inst Shanghai East Hosp Coll Environm Sci & Engn 1239 Siping Rd Shanghai 200092 Peoples R China;

    Tongji Univ State Key Lab Pollut Control & Resource Reuse Biomed Multidisciplinary Innovat Res Inst Shanghai East Hosp Coll Environm Sci & Engn 1239 Siping Rd Shanghai 200092 Peoples R China;

    Tongji Univ State Key Lab Pollut Control & Resource Reuse Biomed Multidisciplinary Innovat Res Inst Shanghai East Hosp Coll Environm Sci & Engn 1239 Siping Rd Shanghai 200092 Peoples R China;

    Queensland Univ Technol QUT Sch Chem & Phys Brisbane Qld 4000 Australia|Queensland Univ Technol QUT QUT Ctr Mat Sci Brisbane Qld 4000 Australia;

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  • 正文语种 eng
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  • 关键词

    cyclodextrin; discriminative response; fluorescence; phosphate; organophosphate; polyoxometalate cluster;

    机译：环糊精;鉴别反应;荧光;磷酸盐;有机磷酸盐;聚杂氧酸盐簇;

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