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Preparation and Application of Molecularly Imprinted Hybrid Materials of Estrogenic Endocrine Disruptors

A technology of endocrine disruptors and molecular imprinting, which is applied to the electrochemical variables of materials, chemical instruments and methods, and other chemical processes, can solve problems such as short service life, low detection sensitivity, and slow response speed, and achieve broadened scope and process Reasonable and convenient separation effect

Active Publication Date: 2015-11-18
TIANJIN POLYTECHNIC UNIV
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  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the shortcomings of slow response speed, low detection sensitivity and short service life in the traditional detection method of estrogen endocrine disruptors, to provide a preparation of molecularly imprinted hybrid materials of estrogen endocrine disruptors, and to It is applied to the rapid response and high sensitivity detection of estrogen endocrine disruptors in drinking water

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  • Preparation and Application of Molecularly Imprinted Hybrid Materials of Estrogenic Endocrine Disruptors
  • Preparation and Application of Molecularly Imprinted Hybrid Materials of Estrogenic Endocrine Disruptors
  • Preparation and Application of Molecularly Imprinted Hybrid Materials of Estrogenic Endocrine Disruptors

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Embodiment

[0030] Preparation of a molecularly imprinted hybrid material of estrogenic endocrine disruptors by first loading Fe on the surface of graphene using a hydrothermal one-step method 3 o 4 Microspheres to obtain magnetic graphene, and then use the magnetic graphene as a carrier to synthesize a magnetic graphene-based molecularly imprinted nanomembrane on its surface using molecular imprinting technology, including the following steps:

[0031] 1) Synthesis of magnetic graphene by hydrothermal method

[0032] 1mmolFeCl 3 ·6H 2 O was dissolved in 40mL of ethylene glycol, and after ultrasonic stirring to obtain a yellow transparent solution, 100mg of graphene oxide was added, ultrasonically dispersed and mixed uniformly, then 5mmol of anhydrous sodium acetate was added, ultrasonically stirred for 30min, and the uniformly mixed solution was transferred to stainless steel for reaction Put it in an oven, put it into an oven for crystallization reaction at 200°C for 16 hours, and af...

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Abstract

The invention provides the preparation of a molecularly imprinted hybrid material of an estrogenic endocrine disrupter. The preparation comprises the following steps: firstly, loading Fe3O4 microspheres on the surface of graphene by a hydrothermal one-step method to obtain magnetic graphene, and then taking the magnetic graphene as a carrier, and synthesizing a magnetic graphene-based molecularly imprinted nanofilm on the surface of the magnetic graphene through the molecular imprinting technique. The preparation of the molecularly imprinted hybrid material provided by the invention is rational in process and easy to implement; the magnetically functionalized graphene in the prepared magnetic graphene-based molecularly imprinted hybrid material is magnetic and thus convenient to separate, and simultaneously, capable of enhancing the response signals of an electrochemical sensor; the molecularly imprinted hybrid material has the characteristics of excellent chemical stability and reusability, quick response and high sensitivity in detection of estrogen in drinking water; therefore, the molecularly imprinted hybrid material is greatly convenient for the detection of the estrogenic endocrine disrupters; as a result, the utilization efficiency of the molecular imprinting technique can be greatly improved and the range of molecular imprinting application can be expanded.

Description

technical field [0001] The invention relates to the preparation of molecularly imprinted hybrid materials, in particular to the preparation and application of molecularly imprinted hybrid materials of estrogen endocrine disruptors. Background technique [0002] Estrogenic endocrine disruptors are the maintainers of the stability of the endocrine system of female individuals and the maintainers of the second physiological characteristics of female individuals. If estrogen is in an unbalanced state in an individual, it will have adverse effects on the reproductive system, endocrine system and immune system of the organism. It may not only cause deformities of reproductive organs such as testicles and ovaries, but also cause abnormal physiological phenomena such as androgyny and male feminization. As a natural estrogen, estradiol can directly or indirectly affect the nervous system, and then affect the endocrine system. Estrogen enters water bodies through domestic sewage and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F212/36C08F220/06C08F2/38C08J9/28B01J20/26B01J20/30G01N27/26
Inventor 李颖李苹黄艳凤李加辉吴军寇潇雨
Owner TIANJIN POLYTECHNIC UNIV
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