According to reports, after five years of preparation, the Shenzhen National Gene Bank has achieved remarkable results in biological samples and resource storage, gene sequencing , database construction, gene synthesis, gene editing and industrial applications. Level. Relying on biological resources, we will form a full-scale and full-coverage model from resources to scientific research to industry, and realize the integration and application of large resources, big data, big science and large industries. Applications include human health, new agriculture, species diversity and ecological environmental protection. At present, more than 20 international/national key scientific research projects have been carried out, and more than 140 papers have been published. Among them, more than 30 papers have been published in the key journals of "Nature" and "Science" and "Cell" in the United States.
Wang Jian, chairman of Huada Gene, said that at present, the national gene bank has stored 10 million samples of biological resources; the genetic information data storage support capacity reached 60 PB; and has been approved as an ISO/TC276 Chinese counterpart, initially establishing genetic information. Data and biological sample collection, storage, management related standards and technical specifications, issued 5 local standards in Shenzhen, applied for 10 international and domestic standards, applied for 46 domestic and foreign patents, and published 8 monographs on genetic resources.
In addition, the biological samples constructed by the National Gene Bank and the big data storage, management, certification, and basic application systems are in an orderly exchange and sharing with international authoritative databases to form a global alliance system that supports the lead bio-health industry and bio-economy. Rapid development. At present, the National Gene Bank has established strategic partnerships with more than 100 domestic and foreign scientific research institutions and industry organizations such as the International Association for Biological and Environmental Samples, the Global Biodiversity Alliance, the Norwegian Doomsday Seed Bank, the Human Gene Mutation Group Program, and the Chinese Academy of Sciences. Cooperative research has been carried out on human health, biodiversity, and biological evolution mechanisms.
Urinalysis test strips refer to test strips that test for bilirubin, urobilinogen, ketone bodies, ascorbic acid, glucose, protein (albumin), blood cells, PH, etc. in urine.
Detection principle
1. pH: The pH value in the range of 5-9 is measured by the pH indicator, and the pH value of the fresh urine of a normal person is between 5-7.
2. Nitrite: The reaction is based on the reduction of nitrate to nitrite by Gram-positive bacteria in the urine. The nitrite reacts with p-aminobenzenesulfonic acid to form diazonium compounds, which are then combined with N-(1-naphthalene) )-3 aminopropanesulfonate combined with a pink color.
3. Glucose: According to the reaction principle of glucose oxidase, glucose oxidase specifically oxidizes glucose to generate glucuronic acid and hydrogen peroxide. Under the action of hydrogen peroxide, hydrogen peroxide oxidizes the indicator and turns color. .
Classification
Urinalysis test strips are divided into visual series and machine series. The visual inspection series is divided into several models according to different inspection items; the machine inspection series is divided into several models according to different applicable instruments.
1. Classification by measurement method
1) Visual inspection series
When observing the result, compare the color with the standard color code within the time specified on the color code, judge and read the result.
2) Machine test series.
For instrument operation, refer to the instruction manual of the Urine Analyzer used.
2. According to the number of measurement items
There are single-item, 2-item, 4-item and multiple test strips. Currently, 10-item or 11-item multiple test strips are most commonly used in hospitals.
3. Classification by structure
Urinalysis test strips with single-layer membrane structure and multi-layer membrane structure.
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