Excited! Four Good News Comes from the Science and Technology Field, and Chinese Scientists Have Difficulties to Solve

Tech 2023-07-13 15:21:52 Source: Network

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If you like it, you can click on the word "Follow" above. Your support is my driving force for continuous updates.

On the way to work, brushing my phone has brought four good news from the Chinese technology industry, which makes me feel refreshed and full of motivation even for work. Quickly code and share with everyone!

First: Major Breakthrough in Chinese Scientists' Research: Hydrogen Breathing Strategy Helps Solve the Problem of Waste Plastics

According to Xinhua News Agency, Professor Zeng Jie's research group of University of Science and Technology of China has made a major breakthrough in the field of plastic recycling and upgrading. They drew on the technology of the petroleum industry and regarded waste polyethylene plastics as a "solid petroleum" and designed a "hydrogen breathing" strategy. This strategy successfully realized the conversion of high-density polyethylene plastics into cyclohydrocarbons with high added value without the need for additional hydrogen or solvents, providing a new way for the "artificial Carbon cycle" of plastic waste.

Polyethylene plastic, as one of the five general plastics, can be seen everywhere in daily life, but Plastic pollution is becoming increasingly serious. The existing polyethylene plastics have high stability and are difficult to degrade naturally. For this reason, researchers treat it as "solid petroleum" and use it to prepare petroleum based downstream chemical products.

The research team drew inspiration from the petroleum industry process and designed a "hydrogen breathing" strategy. They developed a molecular sieve supported metal ruthenium catalyst, which enables polyethylene plastics to "exhale" hydrogen gas into cyclic hydrocarbons, while "absorb" the released hydrogen gas to decompose into short chain hydrocarbons. This strategy has successfully reduced costs and achieved the preparation of high-value cyclic hydrocarbon products. As an important Petrochemistry product, cyclic hydrocarbons are widely used, such as synthetic drugs, dyes, resins, fibers and other raw materials.

Han Buxing, a researcher and academician of the Institute of Chemistry of the Chinese Academy of Sciences, said that this research provided a new method for the "artificial Carbon cycle" of waste plastics and a new idea for the partial replacement of oil. This study was published in the internationally authoritative academic journal Nature Nanotechnology.

My viewpoint:Research achievements of Professor Zeng Jie's research group in the field of plastic cycle upgradingIt provides a new way to solve the problem of Plastic pollution. This study successfully transformed waste polyethylene plastics into cyclic hydrocarbons with high added value,Promote the upgrading of plastic recycling technology and reduce environmental pressure. We look forward to further promoting this technology,Make greater contributions to protecting the Earth's environment. This breakthrough achievement once again demonstrates the ability and strength of Chinese researchers in innovative research, and is worthy of our pride and pride.

Secondly, the successful development of flexible monocrystalline silicon solar cells ushers in new opportunities for the photovoltaic industry

According to Beijing Daily, China's scientific research team has successfully developed a flexible monocrystalline silicon solar cell with the characteristics of light, thin and strong, and its minimum bending radius is less than 5mm. This important achievement has been published in the form of a cover article in the journal Nature. This technology will bring huge development space for fields such as aerospace, photovoltaic building integration, and wearable electronics.

Monocrystalline silicon solar cells can efficiently convert solar energy into electrical energy. In recent years, the Solar-cell efficiency has increased to 26.8%. However, the thinner the monocrystalline silicon, the more fragile it becomes, and the research team has been striving to seek breakthroughs to achieve the goals of high efficiency, lightweight, large area, and low cost. Di Zengfeng, a researcher at the Chinese Academy of Sciences Shanghai Institute of Microsystems and Information Technology, said that the "mechanical weakness" of silicon wafers was successfully overcome through the smooth edge processing technology, so that the 60 micron thick monocrystalline silicon solar cells could be bent like A4 paper.

This simple and effective processing technology not only endows silicon wafers with stronger flexibility, but also does not affect the photoelectric conversion efficiency of solar cells. At present, this process has been verified by batch production, providing a feasible Technology roadmap for the development of lightweight and flexible monocrystalline silicon solar cells.

The successfully developed flexible monocrystalline silicon solar cells will bring new opportunities to the photovoltaic industry. Large area flexible photovoltaic modules have been successfully applied in fields such as near space aircraft, building photovoltaic integration, and in vehicle photovoltaic. In the future, flexible monocrystalline silicon solar cells have broad application prospects in space applications, green buildings, portable power supplies, and other fields.

My viewpoint:The successful development of flexible monocrystalline silicon solar cells willOpening up a New Development Path for the Photovoltaic Industry. The application of this technology willGreatly promoting innovation and development in fields such as aerospace, photovoltaic building integration, and wearable electronics. With the continuous improvement of flexible monocrystalline silicon solar cell technology, we have reason to believe that itIt will bring broader market space to the new energy industry.

Third: Tianjin University team develops new fingerprint developer to improve fingerprint identification quality and efficiency

According to Beijing Daily, the team of Li Zhen and Xie Yujun from Tianjin University has made an important breakthrough in the field of fingerprint identification technology and successfully developed a new type of amphiphilic fingerprint developer. This developer has excellent performance in identifying detailed features and can achieve high-quality fingerprint image development. This research achievement has been supported by the National Natural Science Foundation of China, and the relevant papers have been published in the authoritative journal "Advanced Materials".

Fingerprint identification technology has important application value in Criminal investigation, identity recognition, etc. However, existing technologies still have certain limitations in detail recognition, which poses difficulties for case investigation. After grinding in air, the luminescent color of the new fingerprint developer will change and can even recover on its own. At the same time, the developer uses water as the solvent, which helps to protect the Fine structure of the fingerprint and shows a good development effect on a variety of substrates.

Researchers have stated that the new fingerprint developer can achieve almost the best performance of the current three-level fingerprint feature development, which will bring significant breakthroughs in case fingerprint evidence collection and identity recognition technology, and is of great significance in the field of criminal investigation.

The successful development of new fingerprint developers indicates that fingerprint recognition technology will usher in new development opportunities. While protecting the Fine structure of fingerprints, the developer can also provide high-resolution fingerprint images, thus providing more effective technical means for identification and case investigation. This innovative achievement has a profound impact on the development of fingerprint recognition field.

My viewpoint:Breakthroughs made by the team of Tianjin University in the research and development of fingerprint developerWill be conducive to promoting the continuous progress of fingerprint recognition technologyProvide stronger technical support for criminal investigation work. WeLooking forward to the wider application of this technology in the future,Provide strong guarantees for social security and public services. This achievement is alsoThis once again proves the ability and strength of Chinese researchers in innovative researchWe are proud and proud of it.

Fourth: Chinese scientists clone broad-spectrum anti Clubroot genes: "Weiqing" helps plants resist diseases

According to China News Network, Chinese scientists have made a major breakthrough in the field of plant disease resistance, successfully cloned a broad-spectrum gene resistant to Clubroot disease, named after Wei Qing, a famous general of the Western Han Dynasty. This achievement will contribute to the breeding of Brassicaceae crops for resistance to Clubroot disease, and also reveal a new type of calcium release channel and its mediated plant immune mechanism, providing a new theoretical basis for the field of plant immunity.

According to reports, Clubroot disease is a major agricultural threat to Brassicaceae crops such as rape, with an annual incidence area of 48 million to 60 million mu in China. To cope with this problem, the cooperative team of Chen Yuhang and Zhou Jianmin, researchers from the Institute of Genetics and Development of the Chinese Academy of Sciences, relying on years of research experience, successfully cloned a high resistance gene named "Wei Qing" and clarified its molecular mechanism.

The study found that "Weiqing" gene encodes an unreported Transmembrane protein, which has broad spectrum resistance and can be used as a valuable resource for breeding resistance to Clubroot. The Weiqing gene has a novel pentamer structure with a transmembrane pore in the center. Electrophysiology and calcium imaging studies revealed that Weiqing gene can penetrate calcium ions. In the process of infection by Rhizoma tumefaciens, the Weiqing gene is specifically expressed in the pericycle cells and self assembles into a calcium Ion channel of the endoplasmic reticulum, which activates the immune response process by mediating the release of calcium ions from the Endoplasmic reticulum, thus protecting the root Vascular bundle system from the invasion of pathogenic bacteria.

Personal viewpoint:This major breakthrough by Chinese scientists in the field of plant disease resistance not onlyIt is helpful to improve the disease resistance of Brassicaceae crops, and also provides a new theoretical basis for plant immunity research. This research result is sufficientShowcasing the strength and innovative ability of Chinese researchers in the field of plant disease resistance research. It is hoped that this achievement can provide strong support for future breeding work against Clubroot disease and help China's agricultural sustainable development. This groundbreaking study alsoOnce again, scientific research requires sustained investment and innovative spiritTo achieve more significant breakthroughs.

#Headline Creation Challenge#

So, what do you think of these four good news? Welcome to leave a comment and discuss in the comment section!

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