Preparation and application of molecularly imprinted hybrid material of estrogenic endocrine disrupter

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: 2014-03-19
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

Method used

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  • Preparation and application of molecularly imprinted hybrid material of estrogenic endocrine disrupter
  • Preparation and application of molecularly imprinted hybrid material of estrogenic endocrine disrupter
  • Preparation and application of molecularly imprinted hybrid material of estrogenic endocrine disrupter

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

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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 present invention involves the preparation of molecular seal hybrid materials, especially the preparation and application of molecular seal hybrid materials for estrogen endocrine interference. Background technique [0002] Emberism endocrine interference is a holder of the stability of the female endocrine system and the supporter of the second physiological characteristics of the female individual.If estrogen is unbalanced in an individual, it will adversely affect the genital system, endocrine system and immune system of the organism.It may not only cause malformations of reproductive organs such as testicles, ovaries, but also cause abnormal physiological phenomena such as alcca integration and male and female.As a natural estrogen, estradol can directly or indirectly affect the nervous system and then affect the endocrine system.Estrogen enters the water body through the sewage and industrial wastewater. Due to the difficulty of degradation of estr...

Claims

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Application Information

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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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