Non-enzymic glucose sensor of modified nanometer copper oxide screen-printed electrode

A technology of glucose sensor and screen printing electrode, which is applied in the field of preparation of non-enzyme glucose sensor, can solve the problems of cumbersome production and achieve the effects of low preparation cost, good stability and fast response speed

Inactive Publication Date: 2015-06-10
TIANJIN UNIVERSITY OF TECHNOLOGY
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Problems solved by technology

However, the stability of the sensor will be affected by factors such as temperature, solution pH, and dissolved oxygen, and the production is relatively cumbersome. Therefore, the enzyme-free glucose electrochemical sensor has become a research ...

Method used

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  • Non-enzymic glucose sensor of modified nanometer copper oxide screen-printed electrode
  • Non-enzymic glucose sensor of modified nanometer copper oxide screen-printed electrode
  • Non-enzymic glucose sensor of modified nanometer copper oxide screen-printed electrode

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Experimental program
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Embodiment

[0032] A kind of non-enzyme glucose sensor of nano copper oxide modified screen printing electrode, its preparation method steps are as follows:

[0033] 1) Preparation of copper sulfate-cetyltrimethylammonium bromide mixed solution

[0034] Dissolve 2g of copper sulfate in 30mL of deionized water, stir at room temperature for 10min, then add 0.1g of cetyltrimethylammonium bromide (CTAB), and stir magnetically for 30min to obtain copper sulfate-cetyltrimethylammonium bromide mixture;

[0035] 2) Preparation of copper oxide

[0036] In the above copper sulfate-hexadecyltrimethylammonium ammonium bromide mixed solution, add 70mL of NaOH solution with a concentration of 8mol / L dropwise with a separatory funnel, stir for 36h, and vacuum filter to obtain a black precipitate. Heating at 60°C for 1.5h, and grinding to obtain copper oxide;

[0037] figure 1 It is the X-ray powder diffraction pattern of the prepared copper oxide product, which shows that the main component of the...

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Abstract

The invention provides a non-enzymic glucose sensor of a modified nanometer copper oxide screen-printed electrode. According to the making method of the non-enzymic glucose sensor, a double-layer overprinting nano-silver interpolation circuit and a copper oxide sensing layer of a screen process press are adopted, and the non-enzymic glucose sensor which is low in cost and easy and rapid to use and has the large-area printing function is manufactured; flexible quantitative analysis and measurement of glucose are conducted through a current-time curve method. The sensor is high in sensitivity, high in response speed and good in stability, the glucose detection linear range ranges from 1 micron to 3 millimeters, the detection limit is 10 nm, and the sensitivity is 1328.64 muA.L.mmol<-1>cm<-2>.

Description

technical field [0001] The invention relates to a preparation method of a screen printing sensor, in particular to a preparation method of a non-enzymatic glucose sensor with nano copper oxide modified screen printing electrodes. Background technique [0002] Printed electronics is a new type of green industry. It refers to the additive printing of various functional inks on various substrates through appropriate printing technology to prepare large-area, flexible, and low-cost electronic products and devices. . In recent years, the rapid industrialization of the printed electronics industry has driven the formation and development of industries related to printed electronics. Since the current biosensor technology is relatively mature, the most critical issue is low cost and easy production. The use of printed electronics technology can just achieve low cost and easy production. [0003] Using the method of screen printing to prepare organic nanocomposites as conductive ...

Claims

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Application Information

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IPC IPC(8): G01N27/30
Inventor 魏臻张志梅刘学文
Owner TIANJIN UNIVERSITY OF TECHNOLOGY
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