[quick news] on December 23, 2019, new Raman spectroscopy can "see" particles less than one billionth of a meter

New Raman spectroscopy can "see" particles less than one billionth of a meter Japanese scientists have developed a new Raman spectroscopy, which enables researchers to analyze the chemical composition and structure of metal particles with a diameter of only 0.5-2 nm Professor Yamamoto Xijiu, one of the research leaders, explained: "this spectral technique selectively generates Raman signals of substances very close to the surface of the optical amplifier." In order to test this finding, they measured the Raman spectrum of SnO 2 SNC, and obtained a new discovery, which explained why SnO 2 SNC has such high chemical catalytic activity related to its atom This latest breakthrough is expected to enable scientists to develop new micro materials, which are widely used in electronic, biomedical, chemical and other fields Http://news.sciencenet.cn/htmlnews/2019/12/434031.shtm China's first Fabry disease treatment drug - Sanofi injection of agatase β (fabuzen) was approved for marketing! Recently, the National Drug Administration approved Genzyme Europe B.V.'s application for the import registration of agatase β for injection (trade name: fabuzen) The drug is the first approved drug for treating Fabry disease in China, which is suitable for children, adolescents and adults over 8 years old The approved enzyme β for injection was declared by Sanofi (China) Investment Co., Ltd on behalf of Genzyme Europe B.V., and was listed in the second batch of new drugs urgently needed in clinical practice Http://news.bioon.com/article/6747446.html nature: great discovery! In a new study, researchers from the University of California, San Francisco and the University of California, San Diego have found a striking new strategy, which some phages use to avoid becoming these DNA The next victim of cleavage: after infecting bacteria, these phages build an impenetrable "compartment" inside the bacterial host to protect vulnerable phage DNA from these antiviral enzymes This nuclear like compartment is by far the most effective CRISPR shield found in viruses Http:// scientists found new benefits of caffeine scientists at the University of Illinois found that caffeine may make up for the negative effects of incorrect diet, because it will slow the deposition of lipid metabolism and reduce the level of triglyceride The amount of caffeine consumed is equivalent to four cups of coffee consumed by people Madai tea is a kind of tea drink made by soaking the dry leaves and twigs of Paraguay holly It's rich in caffeine This can also be achieved with the aid of synthetic caffeine and caffeine contained in coffee Http://sputniknews.cn/science/201912221030292526/ scientists have made new progress in solving "the mystery of flowering plants occupying the earth quickly" The paper "evolution of water lily genome and early flowering plants", which was jointly published by scientists from China, the United States, Belgium and other countries, was recently published on the Internet in nature, a top international academic journal The paper announced that the high-quality genome of the blue star water lily has been obtained and analyzed, which is a key step to solve the mystery of "how flowering plants occupy the earth rapidly within 200 million years" In addition, the paper analyzes the way of flower color and fragrance of water lily, which has important reference value for the study of flower color and fragrance of horticultural plants Zhang Liangsheng said, for example, the water lily has a unique blue petal, which is the color many breeders want to copy to other ornamental flowers http://news.sciencenet.cn/htmlnews/2019/12/434036.shtm