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New scientific research results: researchers have prepared bio-glass that can efficiently repair damaged skin
▲ Wound healing process in mouse skin defect model. Courtesy of Hefei Research Institute, Chinese Academy of Sciences
On July 6, it was learned from the Hefei Research Institute of the Chinese Academy of Sciences that Wang Junfeng, a researcher at the Center for Strong Magnetic Field of the Institute, and Professor Zhang Teng of Fuzhou University cooperated to successfully prepare nano-scale borate bioactive glass, which can efficiently repair damaged skin.
The results were published in the international journal Chemical Engineering Journal. According to reports, the bio-glass not only greatly reduces the biotoxicity of borate bio-glass, improves the biocompatibility of glass, and significantly promotes the effect of borate bio-glass on skin repair, which is expected to become the next generation of skin wound repair dressing.
——China News Network
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Degradation of algal polysaccharides by Bacteroides cold spring promotes deep-sea nutrition and carbon cycling
▲ Collecting cold spring surface sediments in the deep sea
On July 1, Environmental Microbiology reported on the latest research results of Sun Chaomin's research group at the Institute of Oceanology of the Chinese Academy of Sciences. The results show that Bacteroides in the deep sea cold spring can promote deep-sea nutrition and carbon cycling by degrading algal polysaccharides. This result provides a research example for further understanding the study of deep-sea microbial-mediated material energy metabolism and carbon element biological earth cycle.
——China Science News
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The balance of microbes in the oral cavity helps protect against COVID-19
▲ Image source: China Science and Technology Network
Recently, a project "Metagenomic Analysis Reveals Changes in the Oral Microbiota of Patients with New Coronary Pneumonia" completed by the research group of Professor Ma Shengli, the leader of the National Oral Microecology Group of Microecology of The Chinese Preventive Medicine Association and the director of the Heilongjiang Oral Microecological Technology Innovation Center, was published by the sub-journal of Nature. The results of this study reveal for the first time that after the new crown virus invades the human body, it causes the decline of oral microbial diversity, breaks the balance of oral microecology, and eventually causes the "unbridled wild horse" pathogen to break into the lungs from the mouth, resulting in co-infection of the lungs.
——Science and Technology Daily
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2.7 billion years ago, the planet was ready for an outbreak of life
▲ The 2.7 billion-year-old diamond used in the study. Courtesy of Michael Broadley's research group
▲ The Earth's rock formation map shows where the diamond formed in the upper mantle. Courtesy of Michael Broadley's research group
Recently, a new study found that the basic chemical composition of the Earth's atmosphere was formed at least 2.7 billion years ago, making it an environment suitable for outbreaks of diversity of life. Presenting the work at the Goldschmidt Congress on Geochemistry, lead researcher Michael Broadly said that diamonds found in ancient rocks, where the proportion of volatile gases is similar to that found in today's mantle, suggests that the proportion of volatile gases in the atmosphere has not changed radically over the past few billion years. This also shows that a sufficient number of elements to support life appeared shortly after the formation of the Earth and have been fairly stable ever since.
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Dozens of lakes could exist beneath the south surface of Mars
▲ The south pole of Mars (Source: Physicists Organization Network)
American scientists published a paper in the latest issue of the "Geophysical Research Letters" online edition that radar data shows that there may be dozens of lakes below the surface of the south pole of Mars, suggesting that there may be much more liquid water below the south pole of Mars than scientists imagined.
In the latest study, Aditya Kuhler, a doctoral student at Arizona State University, and Jeffrey Plant of the Jet Propulsion Laboratory (JPL), one of MARSIS co-leaders, analyzed data from 44,000 observations conducted by MARSIS over 15 years and found dozens of identical radar reflection signals beneath the Antarctic surface that were identical to the previous four "hidden" lakes.
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New research says that wisdom teeth extraction improves taste in the long term
Dentists always like to persuade us to extract wisdom teeth, but the consequences of this make many people worry: "What are the consequences of removing wisdom teeth?" Does it affect the sense of taste? According to a paper recently published in the British journal Chemical Senses, researchers at the University of Pennsylvania School of Dentistry in the United States found that wisdom teeth extraction can improve taste, and the effect will last for a long time.
Source: Today's WeChat public account of the Association for Science and Technology
Organizations at all levels of the China Association for Science and Technology should adhere to the responsibility positioning of serving scientific and technological workers, serving innovation-driven development, serving to improve the scientific quality of the whole people, and serving the scientific decision-making of the party and the government, and promote the construction of open, hub-type, and platform-based science and technology association organizations. Take up the long arm, take root in the grass-roots level, unite and lead the vast number of scientific and technological workers to actively march into scientific and technological innovation, organize and carry out innovative scramble actions, promote the prosperity and development of science and technology, promote the popularization and popularization of science, and truly become a people's organization that unites and links the vast number of scientific and technological workers under the leadership of the party, and become an important force in scientific and technological innovation. ——Xi Jinping