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首页> 外文期刊>Electroanalysis >MOF-Derived Spinel NiCo2O4 Hollow Nanocages for the Construction of Non-enzymatic Electrochemical Glucose Sensor
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MOF-Derived Spinel NiCo2O4 Hollow Nanocages for the Construction of Non-enzymatic Electrochemical Glucose Sensor

机译：MOF衍生的尖晶石Nico2O4中空纳米可用于构建非酶促电化学葡萄糖传感器

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摘要

Non-enzymatic glucose sensor is greatly expected to take over its enzymatic counterpart in the future. In this paper, we reported on a facile strategy to construct a non-enzymatic glucose sensor by use of NiCo2O4 hollow nanocages (NiCo2O4 HNCs) as catalyst, which was derived from Co-based zeolite imidazole frame (ZIF-67). The NiCo2O4 HNCs modified glassy carbon electrode (NiCo2O4 HNCs/GCE), the key component of the glucose sensor, showed highly electrochemical catalytic activity towards the oxidation of glucose in alkaline media. As a result, the proposed non-enzymatic glucose sensor afforded excellent analytical performances assessed with the aid of cyclic voltammetry and amperometry (i-t). A wide linear range spanning from 0.18 mu M to 5.1 mM was achieved at the NiCo2O4 HNCs/GCE with a high sensitivity of 1306 mu A mM(-1) cm(-2) and a fast response time of 1 s. The calculated limit of detection (LOD) of the sensor was as low as 27 nM (S/N=3). Furthermore, it was demonstrated that the non-enzymatic glucose sensor showed considerable anti-interference ability and excellent stability. The practical application of the sensor was also evaluated by determination of glucose levels in real serum samples.
机译：预期非酶促葡萄糖传感器将来接管其酶促对应物。在本文中，我们报道了通过使用NicO2O4中空纳米病（NicO 2 O 4 HNC）作为催化剂来构建非酶促葡萄糖传感器的容易策略，该催化剂衍生自Co-沸石咪唑框架（ZIF-67）。 NicO2O4 HNCS改性玻璃碳电极（NicO2O4 HNC / GCE），葡萄糖传感器的关键组分，显示出高度电化学催化活性朝向碱性介质中的葡萄糖的氧化。结果，所提出的非酶促葡萄糖传感器提供了借助于循环伏安法和Amperometry（I-T）评估的优异的分析性能。在Nico2O4 HNCS / GCE上实现跨越0.18μm至5.1mm的宽线性范围，具有高灵敏度为1306μmmm（-1）cm（-2）和1 s的快速响应时间。传感器的检测限（LOD）的计算限制低至27nm（s / n = 3）。此外，证明非酶促葡萄糖传感器显示出相当大的抗干扰能力和优异的稳定性。还通过测定真实血清样品中的葡萄糖水平来评估传感器的实际应用。

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  • 来源
    《Electroanalysis》 |2020年第3期|共10页
  • 作者

    Feng Yun; Xiang Dong; Qiu Yaru; Li Li; Li Yusheng; Wu Keyan; Zhu Liande;

  • 作者单位

    Northeast Normal Univ Key Lab Nanobiosensing &

    Nanobioanal Univ Jilin P Sch Chem Changchun 130024 Jilin Peoples R China;

    Northeast Normal Univ Key Lab Nanobiosensing &

    Nanobioanal Univ Jilin P Sch Chem Changchun 130024 Jilin Peoples R China;

    Northeast Normal Univ Key Lab Nanobiosensing &

    Nanobioanal Univ Jilin P Sch Chem Changchun 130024 Jilin Peoples R China;

    Northeast Normal Univ Key Lab Nanobiosensing &

    Nanobioanal Univ Jilin P Sch Chem Changchun 130024 Jilin Peoples R China;

    Northeast Normal Univ Key Lab Nanobiosensing &

    Nanobioanal Univ Jilin P Sch Chem Changchun 130024 Jilin Peoples R China;

    Northeast Normal Univ Key Lab Nanobiosensing &

    Nanobioanal Univ Jilin P Sch Chem Changchun 130024 Jilin Peoples R China;

    Northeast Normal Univ Key Lab Nanobiosensing &

    Nanobioanal Univ Jilin P Sch Chem Changchun 130024 Jilin Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 电化学、电解、磁化学;
  • 关键词

    ZIF-67; NiCo2O4 hollow nanocages; non-enzymatic glucose sensor;

    机译：ZIF-67;Nico2O4中空纳米病;非酶促葡萄糖传感器;

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