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Preparation method of 3D electrode for non-enzymatic blood glucose detection

A blood sugar detection and electrode technology, applied in the field of non-enzymatic glucose sensors, can solve the problems of narrow linear range and low sensitivity, and achieve the effect of solving low sensitivity and improving performance

Active Publication Date: 2021-06-01
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

When the obtained material is applied in the field of non-enzymatic glucose sensor, it exhibits excellent performance, solving the problem of traditional Cu 2 Low sensitivity and narrow linear range of O-based non-enzymatic glucose sensor

Method used

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  • Preparation method of 3D electrode for non-enzymatic blood glucose detection
  • Preparation method of 3D electrode for non-enzymatic blood glucose detection
  • Preparation method of 3D electrode for non-enzymatic blood glucose detection

Examples

Experimental program
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Effect test

Embodiment 1

[0029] A 3D Cu / Cu for Non-enzymatic Blood Glucose Detection 2 The preparation method of O / NiO electrode comprises the steps:

[0030] (1) Configure the reaction solution

[0031] First weigh 0.5 millimoles of copper sulfate, and then weigh the ingredients according to the molar ratio, copper sulfate: sodium dodecylbenzenesulfonate: sodium hydroxide: sodium ascorbate = 1: 4.5: 90-110: 15-25, Add copper sulfate and sodium dodecylbenzene sulfonate together to a beaker containing 50ml of deionized water, add sodium hydroxide and sodium ascorbate to a beaker containing 50ml of deionized water respectively, and stir thoroughly to obtain a uniform solution;

[0032] (2) Preparation of Cu 2 O-packed octahedra

[0033] Add the mixed solution of copper nitrate and sodium dodecylbenzene sulfonate into 5 25ml beakers according to 10, 9, 9, 9, 9ml respectively, and mark them as A-E respectively; take 0.2ml of sodium ascorbate solution and add it dropwise Put into beaker A, after shaki...

Embodiment 2

[0039] A 3D Cu / Cu for Non-enzymatic Blood Glucose Detection 2 The preparation method of O / NiO electrode comprises the steps:

[0040] (1) Configure the reaction solution

[0041] First weigh 0.5 millimoles of copper sulfate, then weigh the ingredients in molar ratio, copper sulfate: sodium dodecylbenzenesulfonate: sodium hydroxide: sodium ascorbate = 1:5:100:20, and mix copper sulfate and Sodium dodecylbenzenesulfonate was added to a beaker containing 50ml of deionized water, sodium hydroxide and sodium ascorbate were respectively added to a beaker containing 50ml of deionized water, and fully stirred to obtain a uniform solution;

[0042] (2) Preparation of Cu 2 O-packed octahedra

[0043] Add the mixed solution of copper nitrate and sodium dodecylbenzene sulfonate into 5 25ml beakers according to 10, 9, 9, 9, 9ml respectively, and mark them as A-E respectively; take 0.25ml of sodium ascorbate solution and add dropwise Put into beaker A, after shaking for 10s, add 0.5ml o...

Embodiment 3

[0050] A 3D Cu / Cu for Non-enzymatic Blood Glucose Detection 2 The preparation method of O / NiO electrode comprises the steps:

[0051] (1) Configure the reaction solution

[0052] First weigh 0.5 millimoles of copper sulfate, then weigh the ingredients in molar ratio, copper sulfate: sodium dodecylbenzenesulfonate: sodium hydroxide: sodium ascorbate = 1: 5.5: 110: 25, and mix copper sulfate and Sodium dodecylbenzenesulfonate was added to a beaker containing 50ml of deionized water, sodium hydroxide and sodium ascorbate were respectively added to a beaker containing 50ml of deionized water, and fully stirred to obtain a uniform solution;

[0053] (2) Preparation of Cu 2 O-packed octahedra

[0054] Add the mixed solution of copper nitrate and sodium dodecylbenzene sulfonate into five 25ml beakers according to 10, 9, 9, 9, 9ml respectively, and mark them as A-E respectively; take 0.3ml of sodium ascorbate solution and add it dropwise Put into beaker A, after shaking for 10s, a...

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Abstract

The invention relates to the technical field of non-enzymatic glucose sensors, in particular to a preparation method of a 3D electrode for non-enzymatic blood glucose detection. According to the method, a Cu2O stacked octahedron is prepared by using a seed mediation method, then NiO quantum dots are deposited on the surface of the obtained Cu2O stacked octahedron by using an electrochemical deposition technology, and a Cu layer appears between contact surfaces of a sensing material and a signal receiving electrode due to partial reduction of Cu2O occurring in the deposition process, so that the 3D Cu / Cu2O / NiO mixed electrode is obtained. When the obtained material is applied to the field of non-enzymatic glucose sensors, excellent performance is shown, and the problems that a traditional Cu2O-based non-enzymatic glucose sensor is low in sensitivity and narrow in linear range are solved.

Description

technical field [0001] The invention relates to the technical field of non-enzymatic glucose sensors, in particular to a method for preparing a 3D electrode for non-enzymatic blood sugar detection. Background technique [0002] Diabetes often leads to a range of life-threatening complications such as blindness, high blood pressure, kidney failure, and more. The onset of diabetes is usually associated with high glucose levels in a person's blood. Therefore, it is necessary to study a glucose sensor that can be used to measure blood glucose levels in real time. Currently commonly used glucose sensors are mainly divided into two categories: one is an enzyme sensor based on biologically active proteins such as glucose oxidase; the other is mainly a non-enzymatic glucose sensor based on gold, platinum and other precious metals. The former, as a typical biologically active molecule, can easily lose its activity under unfavorable conditions of temperature, humidity and pH, which ...

Claims

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Application Information

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IPC IPC(8): G01N27/30G01N27/327
CPCG01N27/308G01N27/327
Inventor 祁阳刘文彬
Owner NORTHEASTERN UNIV
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