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Three-dimensionally ordered macro-porous structured thin film and electric sensor for detecting diabetes and lung cancer markers

A three-dimensional ordered, porous structure technology, applied in the field of electrical sensors, can solve the problems of large volume, high price, high storage environment and technical level requirements, and achieve the effect of small size, easy operation and high sensitivity

Inactive Publication Date: 2015-11-04
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the spectral line measurement method is widely used and can meet the non-invasive requirements, its popularization is limited due to the shortcomings of large volume, high price, high requirements for storage environment and technical level, and the need for pre-enrichment of the gas to be measured.

Method used

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  • Three-dimensionally ordered macro-porous structured thin film and electric sensor for detecting diabetes and lung cancer markers
  • Three-dimensionally ordered macro-porous structured thin film and electric sensor for detecting diabetes and lung cancer markers
  • Three-dimensionally ordered macro-porous structured thin film and electric sensor for detecting diabetes and lung cancer markers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Acetone sensor based on indium oxide three-dimensional ordered macroporous film

[0036] (1) Synthesis of monodisperse polymethyl methacrylate microspheres by sol-gel method: control the temperature of the oil bath at 90°C, add 4 mL of methyl methacrylate and 25 mg of potassium persulfate to 40 mL of water in sequence, and react for 1.5 hours to prepare A polymethyl methacrylate microsphere emulsion with good stability and uniformity is obtained; the diameter of the microsphere is 300 nm.

[0037] (2) In a constant temperature box, at a temperature of 35 ° C, the polymethyl methacrylate microspheres prepared in step (1) are deposited on a glass substrate by self-assembly method to form regular polymethyl methacrylate microspheres. The spherical opal film has a thickness of 1 μm. Scanning electron microscope picture as figure 2 , which shows the formation of regular PMMA opal structures, using the film as a template;

[0038] (3) dripping the precursor solution on th...

Embodiment 2

[0054] Acetone sensor based on indium oxide / copper oxide composite three-dimensional ordered macroporous film

[0055] (1) Synthesis of monodisperse polymethyl methacrylate microspheres by sol-gel method: control the temperature of the oil bath at 90°C, add 4 mL of methyl methacrylate and 23 mg of potassium persulfate to 38 mL of water in sequence, and react for 1.5 hours to prepare A polymethyl methacrylate microsphere emulsion with good stability and uniformity is obtained; the diameter of the microsphere is 240nm.

[0056] (2) In an incubator, at a temperature of 30 ° C, the polymethyl methacrylate microspheres prepared in step (1) are deposited on a glass substrate by self-assembly method to form regular polymethyl methacrylate microspheres. The spherical opal thin film has a thickness of 1.5 μm. Scanning electron microscope picture as figure 2 , which shows the formation of regular PMMA opal structures, using the film as a template;

[0057] (3) dripping the precursor...

Embodiment 3

[0073] Acetone sensor based on indium oxide three-dimensional ordered macroporous film

[0074] (1) Synthesis of monodisperse polymethyl methacrylate microspheres by sol-gel method: control the temperature of the oil bath at 90°C, add 6 mL of methyl methacrylate and 25 mg of potassium persulfate to 35 mL of water in sequence, and react for 1.5 hours to prepare A polymethyl methacrylate microsphere emulsion with good stability and uniformity is obtained; the diameter of the microsphere is 420 nm.

[0075](2) In a constant temperature box, at a temperature of 35 ° C, the polymethyl methacrylate microspheres prepared in step (1) are deposited on a glass substrate by self-assembly method to form regular polymethyl methacrylate microspheres. The spherical opal thin film has a thickness of 3 μm. Scanning electron microscope picture as figure 2 , which shows the formation of regular PMMA opal structures, using the film as a template;

[0076] (3) dripping the precursor solution o...

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Abstract

The invention belongs to the technical field of material preparation and detection analysis, and specifically relates to a three-dimensionally ordered macro-porous structured thin film and an electric sensor for detecting diabetes and lung cancer markers. The electric sensor comprises a sealed container and an air inlet faucet connected with the sealed container. The gas is exhaled into the sealed container via the air faucet. The three-dimensionally ordered macro-porous structured thin film is placed in the sealed container for detecting gas concentration of an exhaled gas biomarker; an air sensing and testing system is used for measuring response curves of the three-dimensionally ordered macro-porous structured thin film for different target gases in turn, then fitting a relation curve of the gas markers and response values of the three-dimensionally ordered macro-porous structured thin film; the exhaled air of an individual is exhaled into the sealed container; the fitted curve is used to obtain the concentration of the biomarker in individual exhaled gas. The electric sensor of the invention has the advantages of small volume, stable structure, easy operation, repeated use, high sensitivity, and adjustable detecting range and precision.

Description

technical field [0001] The invention belongs to the technical field of material preparation and detection and analysis, and in particular relates to a three-dimensional ordered macroporous structure film and an electrical sensor for detecting diabetes and cancer markers. Background technique [0002] Rapid, accurate, simple and non-invasive detection of diseases is of great significance to the prevention and detection of diseases. Studies have shown that due to the biochemical process of diseased cells in different parts of the human body, a variety of volatile organic compounds (VOCs) closely related to it will be produced, and they can be exchanged by the alveoli through blood circulation and exhaled from the body. Therefore, observing the changes in the concentration of VOCs in exhaled breath provides researchers with a biological window to intuitively monitor human health. In addition, the expression of VOCs in exhalation often precedes the appearance of clinical sympto...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B81C1/00G01N27/12
Inventor 邢瑞庆徐琳宋宏伟董彪张爽
Owner JILIN UNIV