Manufacturing method and application of difunctional furazolidone photoeletrochemistry sensor

A technology of furazolidone and photoelectrochemistry, which is applied in the direction of electrochemical variables of materials, analysis of materials through chemical reactions, scientific instruments, etc., can solve the problems that affect the convenience of operation and limit the wide application, and achieve convenient operation and high efficiency. Selective detection, the effect of relaxed detection environment requirements

Inactive Publication Date: 2016-07-27
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] However, since the electrochemiluminescence sensor requires external light signal capture devices such as photodiodes, and the photoelectrochemical sensor requires an external li...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Embodiment 1 A kind of bifunctional furazolidone photoelectrochemical sensor, the specific preparation steps are:

[0038] (1) Preparation of ECL working electrode W1:

[0039] 1) Using ITO conductive glass as the working electrode, drop-coat AuNRs on the surface of the electrode, covering an area of ​​1cm×1cm, and dry it at room temperature;

[0040] 2) Immerse the working electrode obtained in 1) into the electrolyte, and the immersion area is the area covered by AuNRs, and use the three-electrode system to perform electrochemical deposition on the working electrode. After deposition, take out the working electrode and clean it with ultrapure water at 4 °C. Drying in the dark to prepare the electrochemiluminescent working electrode W1;

[0041] The AuNRs is an aqueous solution of gold nanorods, and the gold nanorods are rod-shaped gold nanoparticles with a length of 20nm;

[0042] Described electrolytic solution is the sulfuric acid solution containing luminol, and ...

Embodiment 2

[0056] Embodiment 2 A kind of bifunctional furazolidone photoelectrochemical sensor, the specific preparation steps are:

[0057] (1) Preparation of ECL working electrode W1:

[0058] The preparation steps are the same as those of W1 in Example 1, except that the length of the gold nanorods is 30nm, the concentration of luminol in the electrolyte is 5mmol / L, the concentration of sulfuric acid is 0.5mol / L, and the cyclic voltammetry is carried out During electrochemical deposition, cycle 25 times.

[0059] (2) Preparation of photoelectrochemical working electrode W2:

[0060] 1) Using ITO conductive glass as the working electrode, drop-coat 10 μL rGO / TiO on the surface of the electrode 2 , dry at room temperature;

[0061] 2) Put the working electrode obtained in 1) into a muffle furnace, perform annealing treatment at 450°C, and cool to room temperature after treatment;

[0062] 3) Apply 10 μL of furazolidone antibody solution on the surface of the working electrode obtain...

Embodiment 3

[0066] Embodiment 3 A kind of bifunctional furazolidone photoelectrochemical sensor, the specific preparation steps are:

[0067] (1) Preparation of ECL working electrode W1:

[0068] The preparation steps are the same as the preparation steps of W1 in Example 1, except that the length of the gold nanorods is 40nm, the concentration of luminol in the electrolyte is 10mmol / L, and the concentration of sulfuric acid is 1.0mol / L, and the cyclic voltammetry is carried out During electrochemical deposition, cycle 30 times.

[0069] (2) Preparation of photoelectrochemical working electrode W2:

[0070] 1) Using ITO conductive glass as the working electrode, drop-coat 12 μL rGO / TiO on the surface of the electrode 2 , dry at room temperature;

[0071] 2) Put the working electrode obtained in 1) into a muffle furnace, perform annealing treatment at 450°C, and cool to room temperature after treatment;

[0072] 3) Apply 12 μL of furazolidone antibody solution on the surface of the wor...

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Abstract

The invention discloses a manufacturing method of a biological immunity sensor which is constructed on the basis of a functional nanometer material and has electrogenerated chemiluminescence and photoeletrochemistry double signal developing strategies.The manufactured sensor is easy to operate, convenient to carry, high in detection speed, low in cost and capable of being used for detecting furazolidone in the fields of daily production and life fast and sensitively.

Description

technical field [0001] The invention relates to a preparation method of a photoelectrochemical sensor for detecting furazolidone. The sensor integrates dual functions of electrochemiluminescence and photoelectrochemistry. It belongs to the field of new nano functional materials and electrochemical biosensing analysis technology. Background technique [0002] Furazolidone (furazolidone) is a nitrofuran antibiotic, which is a broad-spectrum antibacterial drug. When used as a veterinary drug, furazolidone has good medicinal effects on the prevention and treatment of certain protozoan diseases, saprolegniasis, bacterial gill rot, red skin disease, and hemorrhagic diseases. In the breeding industry, furazolidone can be used to treat intestinal infections in livestock and poultry, such as piglet yellow and pullorum. In aquaculture, furazolidone has a certain effect on the infection of Myxosoma cerebri in Salmonidae. However, the Ministry of Agriculture of my country lists furaz...

Claims

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Application Information

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IPC IPC(8): G01N33/543G01N21/76G01N27/30G01N27/327
CPCG01N21/76G01N27/305G01N27/327G01N33/54306G01N33/54386
Inventor 张勇杜斌魏琴吴丹庞雪辉
Owner UNIV OF JINAN
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