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首页> 外文期刊>Journal of Hazardous Materials >Hollow MnFeO oxide derived from MOF@MOF with multiple enzyme-like activities for multifunction colorimetric assay of biomolecules and Hg~(2+)
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Hollow MnFeO oxide derived from MOF@MOF with multiple enzyme-like activities for multifunction colorimetric assay of biomolecules and Hg~(2+)

机译：中空MNFeo氧化物衍生自MoF @ MOF，具有多种酶活性的生物分子和Hg〜（2+）的多功能比色测定

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摘要

In this work, a new type of hollow MnFeO oxide derived obtained from the metal-organic framework (MOF) @MOF was designed and proposed, which has intrinsic activity of mimicking enzymes of oxidase and peroxidase by adjustment pH values. Based on the colorimetric reaction and the hindrance of the oxidase-like activity in the presence of L-cysteine (Cys), as well as the recovery of oxidase-like activity due to the specific complexation of Cys and mercury (II) ions (Hg2+), a new type of colorimetric transmission platform for Cys and Hg2+ detection with wide linear ranges of 1-25 mu M for Cys and 0.1-15 mu M for Hg2+ has been developed. Besides, a better colorimetric sensing platform for detecting H2O2 was established with linear ranges of 1-60 mu M and 60-300 mu M based on generating hydroxyl radicals (.OH). Furthermore, the hollow MnFeO oxide has high stability, excellent selectivity with good activity over a long period of time. Surprisingly, the proposed method for Cys, Hg2+ and H2O2 estimation can also be used in actual samples. These characteristics lay a foundation for further investigation about the catalytic activity of the hollow MnFeO oxide nanomaterials and make it show broad prospects in the field of biosensing and catalysis.
机译：在这项工作中，设计并提出了一种从金属 - 有机骨架（MOF）@MOF获得的新型中空酰胺氧化物，其具有通过调节pH值模拟氧化酶和过氧化物酶的内在活性。基于比色反应和氧化酶样活性在L-半胱氨酸（Cys）存在下，以及由于Cys和汞（II）离子的特异性络合（HG2 +）的特异性络合而产生的氧化酶样活性的回收），开发了一种新型Cys和HG2 +检测的比色变速器平台，对于CYS，对于HG2 +，具有1-25μm的宽线性范围为0.1-15μm。此外，基于产生羟基自由基（.oh），以1-60μm和60-300μm的线性范围建立了用于检测H2O2的更好的比色感测平台。此外，中空酰胺氧化物具有高稳定性，在很长一段时间内具有良好的活性选择性。令人惊讶的是，Cys，HG2 +和H2O2估计的提出方法也可用于实际样品。这些特性为进一步研究了关于中空酰胺氧化物纳米物质的催化活性的进一步研究，使其在生物传感和催化领域显示出广阔的前景。

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  • 来源
    《Journal of Hazardous Materials》 |2021年第3期|123979.1-123979.10|共10页
  • 作者

    Lu Zhiwei; Dang Yang; Dai Changlian; Zhang Yan; Zou Ping; Du Haijun; Zhang Yi; Sun Mengmeng; Rao Hanbing; Wang Yanying;

  • 作者单位

    Sichuan Agr Univ Coll Sci Xin Kang Rd Yucheng Dist 625014 Yaan Peoples R China;

    Sichuan Agr Univ Coll Sci Xin Kang Rd Yucheng Dist 625014 Yaan Peoples R China;

    Sichuan Agr Univ Coll Sci Xin Kang Rd Yucheng Dist 625014 Yaan Peoples R China;

    Sichuan Agr Univ Coll Sci Xin Kang Rd Yucheng Dist 625014 Yaan Peoples R China;

    Sichuan Agr Univ Coll Sci Xin Kang Rd Yucheng Dist 625014 Yaan Peoples R China;

    Guizhou Minzu Univ Sch Chem Engn Guiyang 550025 Peoples R China;

    Sichuan Agr Univ Coll Sci Xin Kang Rd Yucheng Dist 625014 Yaan Peoples R China;

    Sichuan Agr Univ Coll Sci Xin Kang Rd Yucheng Dist 625014 Yaan Peoples R China;

    Sichuan Agr Univ Coll Sci Xin Kang Rd Yucheng Dist 625014 Yaan Peoples R China;

    Sichuan Agr Univ Coll Sci Xin Kang Rd Yucheng Dist 625014 Yaan Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Hollow structure; MnFeO oxide; Multi-enzyme activity; Biomolecules; Colorimetric assay;

    机译：空心结构;氧化锰;多酶活性;生物分子;比色测定;

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