Preparation method and application for Mn-doped ZnS quantum-dot surface imprinting fluorescent probe

A fluorescent probe, surface imprinting technology, applied in fluorescence/phosphorescence, chemical instruments and methods, luminescent materials, etc., can solve the problems of poor selectivity, low sensitivity, complicated acrylamide operation, etc., and achieve fast fluorescence decay and luminous efficiency. High, improve the recognition efficiency and the effect of combining speed
CN105237677AActive Publication Date: 2016-01-13JIANGSU UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
JIANGSU UNIV
Publication Date
2016-01-13

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Abstract

The invention relates to a preparation method and application for a Mn-doped ZnS quantum-dot surface imprinting fluorescent probe, and belongs to the technical field of preparation of environment functional materials. By utilizing a free radical polymerization method and taking propionamide as a molecular imprinting polymer dummy template, methacrylic acid (MAA) as a functional monomer, Mn-doped ZnS quantum dot graphene oxide (Mn:ZnS@GO) as a matrix material, ethylene dimethacrylate (EGDMA) as a cross-linking agent, azodiisobutyronitrile (AIBN) as an initiator and N,N-dimethyl formamide (DMF) as a solvent, the surface imprinting fluorescent probe is synthesized and is used for enriching detection on acrylamide in food. The fluorescent probe prepared by employing the method embodiments advantages of surface molecular imprinting, avoids the molecule embedding excessive-deep problem of a molecular imprinting polymer template prepared by employing a conventional method, improves identification efficiency and combination speed, and also gives consideration to advantages of high luminescence efficiency, fast fluorescence attenuation and the like of the doped quantum dot, and improves detection rate and sensitivity.
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Description

technical field

[0001] The invention relates to a preparation method and application of a Mn-doped ZnS quantum dot surface imprinted fluorescent probe, in particular to a preparation method of a fluorescent acrylamide virtual molecular imprinted polymer based on Mn-doped ZnS quantum dots on the surface of graphene oxide and applications, belonging to the technical field of preparation of environmental functional materials. Background technique

[0002] Acrylamide is a water-soluble neurotoxic substance that is carcinogenic to rodents. At present, some high-carbohydrate foods have been found to produce different levels of acrylamide after high-temperature cooking such as frying, roasting, and frying. And its content increases with the increase of processing temperature, which is a potential hazard to human health. In addition, polyacrylamide prepared by polymerization of acrylamide can be added to water as a flocculant to absorb and remove impurities in water, but a very sma...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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