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首页> 外文期刊>Chemistry: A European journal >Hydroxyapatite Nanowires@Metal-Organic Framework Core/Shell Nanofibers: Templated Synthesis, Peroxidase-Like Activity, and Derived Flexible Recyclable Test Paper
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Hydroxyapatite Nanowires@Metal-Organic Framework Core/Shell Nanofibers: Templated Synthesis, Peroxidase-Like Activity, and Derived Flexible Recyclable Test Paper

机译：羟基磷灰石纳米线@金属 - 有机骨架芯/壳纳料：模板合成，过氧化物酶样活性，并衍生灵活可回收试验纸

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摘要

The templated synthesis of hydroxyapatite (HAP) nanowires@metal-organic framework (MOF) core/shell nanofibers (named HAP@MIL-100(Fe) nanofibers) is demonstrated. The ultralong hydroxyapatite nanowires are adopted as a hard template for the nucleation and growth of MIL- 100(Fe) (a typical MOF) through the layer-by-layer method. The Coulombic and chelation interactions between Ca~(2+) ions on the surface of the HAP nanowires and the COO~- organic linkers of MIL-100(Fe) play key roles in the formation process. The as-prepared, water-stable HAP@MIL-100(Fe) nanofibers exhibit peroxidase-like activity toward the oxidation of different peroxidase substrates in the presence of H_2O_2, accompanied by a clear color change of the solution. Furthermore, a flexible, recyclable HAP@MIL-100(Fe) test paper is prepared successfully by using HAP@MIL-100(Fe) nanofibers as building blocks. A simple, low-cost, and sensitive colorimetric method for the detection of H_2O_2 and glucose is established based on the as-prepared, flexible, recyclable HAP@MIL-100(Fe) test paper. More importantly, the HAP@MIL-100(Fe) test paper can be recovered easily for reuse by simply dipping in absolute ethanol for just 30 min, thus showing excellent recyclability. With its combination of advantages such as easy transportation, easy storage and use, rapid recyclability, light weight, and high flexibility, this HAP@MIL-100(Fe) test paper is promising for wide applications in various fields.
机译：对羟基磷灰石（HAP）纳米线的模板合成@金属有机框架（MOF）核/壳纳米纤维（名为HAP @ MIL-100（Fe）纳米纤维）。通过层逐层法核解和生长来采用超羟基磷灰石纳米线，以使MIL-100（Fe）（Fe）（典型MOF）的成核和生长。 Ca〜（2+）离子在HAP纳米线表面上的库仑和螯合相互作用和MIL-100（Fe）的CoO〜 - 有机接头在地层过程中发挥关键作用。制备的水稳定HAP @ MIL-100（Fe）纳米纤维在H_2O_2存在下表现出过氧化酶样活性朝向不同过氧酶底物的氧化，伴随着溶液的透明颜色变化。此外，通过使用HAP @ MIL-100（Fe）纳米纤维作为构建块，成功制备了一种柔性的可再循环的HAP @ MIL-100（Fe）试验纸。用于检测H_2O_2和葡萄糖的简单，低成本和敏感的比色方法是基于制备的制备的，柔性可再循环的HAP @ MIL-100（FE）试验纸。更重要的是，通过在绝对乙醇中只浸入30分钟的绝对乙醇中，可以容易地回收HAP @ MIL-100（Fe）试验纸，因此显示出优异的可再循环性。随着交通便利，易于储存和使用等优点，这种HAP @ MIL-100（FE）测试纸的易用性，重量轻，重量轻盈，重量轻，重量轻，易用，重量轻，重量轻，储存和使用速度快，可储存，重量轻，重量轻，重量轻，储存，重量轻。

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  • 来源
    《Chemistry: A European journal》 |2017年第14期|共10页
  • 作者

    Fei-Fei Chen; Ying-Jie Zhu; Zhi-Chao Xiong; Tuan-Wei Sun;

  • 作者单位

    State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of Ceramics Chinese Academy of Sciences Shanghai 200050 (P.R. China);

    State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of Ceramics Chinese Academy of Sciences Shanghai 200050 (P.R. China);

    State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of Ceramics Chinese Academy of Sciences Shanghai 200050 (P.R. China);

    State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of Ceramics Chinese Academy of Sciences Shanghai 200050 (P.R. China);

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 应用化学;
  • 关键词

    biosensors; enzymes; hydroxyapatite; metal- organic frameworks; nanowires; test papers;

    机译：生物传感器;酶;羟基磷灰石;金属 - 有机框架;纳米线;测试论文;

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