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首页> 外文期刊>RSC Advances >Amino group dependent sensing properties of metal-organic frameworks: selective turn-on fluorescence detection of lysine and arginine
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Amino group dependent sensing properties of metal-organic frameworks: selective turn-on fluorescence detection of lysine and arginine

机译：金属 - 有机框架的氨基依赖性感应特性：赖氨酸和精氨酸的选择性开启荧光检测

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摘要

Recently, metal-organic frameworks (MOFs) have been extensively investigated as fluorescence chemsensors due to their tunable porosity, framework structure and photoluminescence properties. In this paper, a well-known Zr(iv)-based MOF, UiO-66-NH(2)was demonstrated to have capability for detection ofl-lysine (Lys) andl-arginine (Arg) selectively from common essential amino acids in aqueous mediaviaa fluorescence turn-on mechanism. Further investigation reveals its high sensitivity and strong anti-interference properties. Moreover, the possible mechanism for sensing Lys and Arg was explored by FT-IR and(1)H-NMR, and the results indicate that the enhancement of the fluorescence could be ascribed to the adsorption of Lys/Arg and the hydrogen bonding interactions between Lys/Arg and the amino group of UiO-66-NH2. The difference of the sensing capacity and sensitivity between UiO-66 and UiO-66-NH(2)revealed that the amino group plays an essential role in the sensing performance. This work presents a unique example of the functional group dependent sensing properties of MOFs.
机译：最近，由于其可调谐孔隙率，框架结构和光致发光性能，金属有机框架（MOFS）被广泛研究为荧光化学置型体。本文中，证明了一种众所周知的Zr（IV）的Zr（IV），UIO-66-NH（2），具有从普通必需的氨基酸中选择性地检测赖氨酸（Lys）和-Shinine（Arg）的能力含有含型血清荧光导通机制。进一步调查揭示了其高灵敏度和强烈的抗干扰性能。此外，用于感测Lys和Arg的可能机制是通过FT-IR和（1）H-NMR探讨，结果表明，该荧光的增强可以归因于赖氨酸/精氨酸的吸附和之间的氢键相互作用Lys / Arg和UIO-66-NH2的氨基。 UIO-66和UIO-66-NH（2）之间的感测能力和灵敏度的差异显示氨基在感​​测性能中起重要作用。这项工作呈现了MOF的功能组依赖性感应属性的独特示例。

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  • 来源
    《RSC Advances》 |2020年第61期|共7页
  • 作者

    Dong Jing; Zhang Xiu-Du; Xie Xia-Fei; Guo Fan; Sun Wei-Yin;

  • 作者单位

    Nanjing Univ Collaborat Innovat Ctr Adv Microstruct Nanjing Natl Lab Microstruct Sch Chem &

    Chem Engn Coordinat Chem Inst State Ke Nanjing 210023 Peoples R China;

    Nanjing Univ Collaborat Innovat Ctr Adv Microstruct Nanjing Natl Lab Microstruct Sch Chem &

    Chem Engn Coordinat Chem Inst State Ke Nanjing 210023 Peoples R China;

    Nanjing Univ Collaborat Innovat Ctr Adv Microstruct Nanjing Natl Lab Microstruct Sch Chem &

    Chem Engn Coordinat Chem Inst State Ke Nanjing 210023 Peoples R China;

    Nanjing Univ Collaborat Innovat Ctr Adv Microstruct Nanjing Natl Lab Microstruct Sch Chem &

    Chem Engn Coordinat Chem Inst State Ke Nanjing 210023 Peoples R China;

    Nanjing Univ Collaborat Innovat Ctr Adv Microstruct Nanjing Natl Lab Microstruct Sch Chem &

    Chem Engn Coordinat Chem Inst State Ke Nanjing 210023 Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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