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All-solid-state acetone sensor taking NiTa2O6 as sensitive electrode for diabetes diagnosis and preparation method of all-solid-state acetone sensor

A technology for diabetes diagnosis and sensitive electrodes, which is used in instruments, scientific instruments, material analysis by electromagnetic means, etc., can solve the problems of inability to meet the real-time self-diagnosis and monitoring requirements of patients, complicated operation, and large size of large-scale instruments. Chemical and humidity stability, simple preparation method, and the effect of facilitating mass production

Inactive Publication Date: 2019-12-20
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition to the shortcomings of large-scale instruments such as large volume, high price, complicated operation and long time consumption, the above methods cannot meet the real-time self-diagnosis and monitoring requirements of patients, and also have the problem of human injury and destruction.

Method used

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  • All-solid-state acetone sensor taking NiTa2O6 as sensitive electrode for diabetes diagnosis and preparation method of all-solid-state acetone sensor
  • All-solid-state acetone sensor taking NiTa2O6 as sensitive electrode for diabetes diagnosis and preparation method of all-solid-state acetone sensor
  • All-solid-state acetone sensor taking NiTa2O6 as sensitive electrode for diabetes diagnosis and preparation method of all-solid-state acetone sensor

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Embodiment 1

[0038] Preparation of NiTa by Sol-Gel Method 2 o 6 material, NiTa sintered at 1000°C 2 o 6(1000℃) As a sensitive electrode material, make an all-solid-state acetone sensor, and test the gas-sensing performance of the sensor. The specific process is as follows:

[0039] 1. Make a Pt reference electrode: use Pt slurry to make a Pt reference electrode with a size of 0.5mm×2mm and a thickness of 15μm on one end of the upper surface of the YSZ substrate with a length and width of 2×2mm and a thickness of 0.2mm, and fold it in half with a Pt wire Then stick the electrode lead wire on the middle position of the reference electrode; then bake the YSZ substrate at 100°C for 1.5 hours, and then sinter the YSZ substrate at 1000°C for 1 hour, so as to eliminate the terpineol in the platinum paste, and finally reduce the to room temperature.

[0040] 2. Make NiTa 2 o 6 Sensitive electrode: first prepare NiTa by sol-gel method 2 o 6 Material. Weigh 1mmol of Ta 2 o 5 , it was diss...

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Abstract

The invention discloses an all-solid-state acetone sensor taking NiTa2O6 as a sensitive electrode for diabetes diagnosis and a preparation method of the all-solid-state acetone sensor, belongs to thetechnical field of gas sensors, and is mainly used for noninvasive home screening for diabetes in medical diagnosis and treatment. The sensor is sequentially composed of an Al2O3 ceramic plate with aPt heating electrode, a YSZ substrate, a Pt reference electrode and a NiTa2O6 sensitive electrode. The reference electrode and the sensitive electrode are separated from each other and are symmetrically prepared at two ends of the upper surface of the YSZ substrate, and the lower surface of the YSZ substrate is bonded to the Al2O3 ceramic plate with the Pt heating electrode. The sensor developed by the invention is an all-solid-state device, the lower limit of acetone detection of the sensor is as low as 200 ppb, the detection range is 200 ppb to 200 ppm, and the sensor completely meets the concentration required by detection for exhaling of normal people and diabetic patients. Clinical tests find that the sensor can be used to screen diabetic patients effectively.

Description

technical field [0001] The invention belongs to the technical field of gas sensors, in particular to a NiTa 2 o 6 An all-solid-state acetone sensor for diabetes diagnosis which is a sensitive electrode and a preparation method thereof, which is mainly used for non-invasive home screening of diabetes in medical diagnosis and treatment. Background technique [0002] Clinical medicine shows that acetone can be produced in diabetics, and the concentration of acetone in the breath of patients is significantly higher than that of normal people. The concentration of acetone in the breath of normal people is 0.3-0.9ppm, while that of diabetic patients exceeds 1.8ppm, which is 2~ 6 times. Through accurate detection of acetone concentration in exhaled breath, non-invasive diagnosis can be performed. If the miniaturization and low price of the detection instrument can be realized, it can be used for home diagnosis and condition monitoring of diabetic patients. [0003] At present, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/327G01N27/407
CPCG01N27/3272G01N27/4074
Inventor 刘方猛王静卢革宇孙鹏
Owner JILIN UNIV
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