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A monitoring material based on graphene oxide and its preparation method and application

A technology of graphene and photocatalytic materials, which is applied in the direction of material analysis through observation of the influence of chemical indicators, analysis through chemical reactions of materials, thermometers with physical/chemical changes, etc., can solve the problem of vaccines without corresponding Identification, users are not easy to find, critical vaccines, medicines or food users' personal safety and other issues, to achieve the effect of not easy chemical reaction and easy packaging

Inactive Publication Date: 2018-12-21
CHINA ACADEMY OF SPACE TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, when the properties of the corresponding items change, the user is not easy to find out because there is no corresponding obvious prompt or mark, thus endangering the personal safety of the vaccine, medicine or food users
For example, in the Shandong vaccine incident, even experienced doctors did not have the consciousness to judge whether the vaccine had deteriorated or failed because the vaccine did not have a corresponding label when administering the vaccine.

Method used

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  • A monitoring material based on graphene oxide and its preparation method and application
  • A monitoring material based on graphene oxide and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] (1) 10g of graphene oxide and 0.5g of titanium dioxide were added to 1L of water, and ultrasonically dispersed for 30 minutes in the dark and at 6°C to obtain a mixed solution I with a uniform composition; further, 0.1g of glucose was added to the above-mentioned mixed solution, ultrasonic Disperse for 5 minutes to obtain a mixed solution II with uniform composition;

[0035] (2) The above-mentioned mixed solution II was subjected to suction filtration to obtain a film-like monitoring material at 6°C. In the as-prepared state, the color of the material is yellow, such as figure 1 shown;

[0036] (3) fixing the obtained yellow film-like monitoring material on the outer packaging surface of the vaccine to be monitored with plastic packaging;

[0037] (4) irradiating the vaccine with the yellow film-like monitoring material obtained in step (3) under sunlight for 8 hours, and the color of the monitoring material changes to black, such as figure 2 It shows that the moni...

Embodiment 2

[0039] (1) 0.5g graphene oxide, 0.05g titanium dioxide and 0.05g zinc oxide are added in 1L water, and ultrasonically dispersed for 5 minutes under the condition of avoiding light and 1°C to obtain a mixed solution I with uniform composition; Further, in the above-mentioned mixed solution Add 0.1 g of fructose, and ultrasonically disperse for 1 minute to obtain a mixed solution II with uniform composition;

[0040] (2) The above-mentioned mixed solution II is subjected to the atomization drying method to obtain the powdery monitoring material. In the as-prepared state, the color of the material is yellow;

[0041] (3) the obtained yellow powdery monitoring material is fixed on the outer packaging surface of the medicine to be monitored with glass packaging;

[0042] (4) The medicine with yellow powdery monitoring material obtained in step (3) was stored in the dark at 30°C for 24 hours, and the color changed to dark yellow, indicating that the monitoring material had a good l...

Embodiment 3

[0044] (1) 10g graphene oxide, 1g titanium dioxide and 1g zinc oxide are added to 1L of water, and ultrasonically dispersed for 60 minutes in the dark, 4 ℃ of conditions, to obtain a mixed solution I with uniform composition; Further, in above-mentioned mixed solution, add 0.025 g glucose, 0.025g maltose, 0.025g fructose, 0.025g vitamin C, ultrasonically dispersed for 5 minutes to obtain a mixed solution with uniform composition;

[0045] (2) The above-mentioned mixed solution II is subjected to a low-temperature drying method to obtain a bulk material as a temperature monitoring material. In the as-prepared state, the color of the material is yellow;

[0046] (3) the obtained yellow block monitoring material is fixed on the outer packaging surface of the food to be monitored with plastic packaging;

[0047] (4) The food with the yellow block monitoring material obtained in step (3) is stored in sunlight at 25°C for 2 hours, and the color changes to dark yellow, indicating th...

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Abstract

The invention relates to a monitoring material based on graphene oxide and its preparation method and application, in particular to a monitoring material sensitive to temperature and / or light, belonging to the technical field of perishable food, medicine or vaccine monitoring, the material is used for Graphene oxide-based light and temperature monitoring materials for cold chain logistics warehousing. The monitoring material of the present invention is to disperse graphene oxide, photocatalytic material, reducing agent (in water to obtain mixed solution, mixed solution is fully dried, thereby obtains the mixture of above-mentioned three kinds of materials. Under the prepared state, this material is yellow, and when light Or under the condition of higher temperature (>8℃), the color of the material gradually changes from dark yellow to black, and the color change is irreversible, thus realizing the effect of a material monitoring light and temperature at the same time. , low-temperature cold chain logistics, and warehousing fields have important application prospects.

Description

technical field [0001] The invention relates to a graphene oxide-based monitoring material and a preparation method and application thereof, in particular to a monitoring material sensitive to temperature and / or light, belonging to the technical field of monitoring of perishable foods, medicines or vaccines. Graphene oxide-based light and temperature monitoring material for cold chain logistics warehousing. Background technique [0002] At present, a large number of vaccines, medicines and foods need to be stored, transported and used under cold chain conditions at low temperature and protected from light. If one of the links makes the item out of the cold chain environment due to equipment failure and other reasons, the corresponding item properties will change. However, in the prior art, when the properties of the corresponding items change, because there is no corresponding obvious prompt or mark, it is not easy for the user to find out, thereby threatening the personal ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/78G01K11/12
CPCG01K11/12G01N21/78
Inventor 贾怡
Owner CHINA ACADEMY OF SPACE TECHNOLOGY
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