Glucose sensor electrode and manufacturing method thereof

A glucose sensor and electrode technology, applied in the field of biosensors, can solve the problems of patient pain, non-continuous detection, limited number of measurements, etc., and achieve the effect of high catalytic response current

Inactive Publication Date: 2012-01-04
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this method is very accurate, frequent testing will bring certain pain and great inconvenience to the patient, and due to the limited number of measurements, it is unlikely to obtain continuous blood glucose testing results, which is not conducive to the treatment of the patient's condition , and rea

Method used

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  • Glucose sensor electrode and manufacturing method thereof
  • Glucose sensor electrode and manufacturing method thereof
  • Glucose sensor electrode and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] An electrolyte solution with a concentration of 2.5 mg / ml was prepared, and the electrolyte solution was composed of chloroplatinic acid, lead acetate, and hydrochloric acid. The concentration of hydrochloric acid in the electrolyte is fixed at 0.5mol / L, and the molar ratio of the solid matter in the electrolyte is chloroplatinic acid:lead acetate=1:1. At room temperature, take the processed stainless steel acupuncture needle electrode, control the deposition current to 5mA, and the deposition time to 10 minutes. In the electrolyte of the above configuration, constant current ultrasonic vibration 200w co-deposition. The prepared electrode was rinsed with twice distilled water, dried at room temperature, and stored in a refrigerator at 4°C until use.

Embodiment 2

[0025] An electrolyte solution with a concentration of 1 mg / ml was prepared, and the electrolyte solution was composed of chloroplatinic acid, lead acetate, and hydrochloric acid. The concentration of hydrochloric acid in the electrolyte is fixed at 0.5mol / L. The molar ratio of solid matter in the electrolyte is chloroplatinic acid:lead acetate=1:1. At room temperature, take the processed stainless steel acupuncture needle electrode, control the deposition current to 40mA, and the deposition time to 20 minutes. In the electrolyte of the above configuration, constant current ultrasonic vibration 100w co-deposition. The prepared electrode was rinsed with twice distilled water, dried at room temperature, and stored in a refrigerator at 4°C until use.

[0026] Select the prepared electrode sample to analyze its surface morphology on the XL-30 scanning electron microscope, such as figure 2 Shown is a 10,000X scanning electron microscope picture of the electrode surface modified ...

Embodiment 3

[0028] An electrolyte solution with a concentration of 5 mg / ml was prepared, and the electrolyte solution was composed of chloroplatinic acid, lead acetate, and hydrochloric acid. The concentration of hydrochloric acid in the electrolyte is fixed at 0.5mol / L. The molar ratio of solid matter in the electrolyte is chloroplatinic acid:lead acetate=1:1. At room temperature, take the processed stainless steel acupuncture needle electrode, control the deposition current to 20mA, and the deposition time to 40 minutes. In the electrolyte of the above configuration, constant current ultrasonic vibration 100w co-deposition. The prepared electrode was rinsed with twice distilled water, dried at room temperature, and stored in a refrigerator at 4°C until use.

[0029] Select the prepared electrode sample to analyze its surface morphology on the XL-30 scanning electron microscope, such as image 3 Shown is a 30000 times scanning electron microscope picture of the surface of the electrode...

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Abstract

The invention discloses a glucose sensor electrode and a manufacturing method thereof. A stainless steel acupuncture needle is used as a matrix electrode and Pt-Pb alloy particles are co-precipitated by constant current. Through energy scattering spectral analysis, the alloy particles mainly comprise Pt, and Pb alloy; and through the observation of a scanning electron microscope, the Pt-Pb alloy particles with large specific surface areas and uniform sizes are uniformly distributed on the surface of the electrode, and the roughness of the surface of the electrode is greatly improved. Through cyclic voltammetric measurement, the manufactured electrode has high electro catalytic activity in the suffer solution of phosphate.

Description

technical field [0001] The present invention relates to biosensors, and more particularly, to implantable needle-type glucose sensor electrodes and methods for their preparation. Background technique [0002] For diabetics, the most common way to measure blood sugar is to collect peripheral blood samples through acupuncture for detection. Although this method is very accurate, frequent testing will bring certain pain and great inconvenience to the patient, and due to the limited number of measurements, it is unlikely to obtain continuous blood glucose testing results, which is not conducive to the treatment of the patient's condition , and real-time continuous detection of blood glucose concentration can effectively monitor the occurrence of hyperglycemia and hypoglycemia. Therefore, in the existing blood glucose measurement technology, there are disadvantages that continuous detection cannot be performed and the number of sampling times is limited. Contents of the invent...

Claims

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Application Information

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IPC IPC(8): G01N27/30
Inventor 许鑫华方海东郭美卿
Owner TIANJIN UNIV
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