[quick news] December 9, 2019 British media: scientists train plastics to "walk" as fast as snails

British media: scientists train plastic to "walk" at a speed comparable to that of a snail British media say researchers use a new light control technology to train a piece of plastic to "walk" Scientists at the University of Tampere in Finland say it is the first time that non living bodies have been taught to move in this way without using computer programs, the Independent reported in December By using a layer of temperature sensitive dye to convert energy into mechanical movement, the advanced polymer can travel about 1 millimeter per second - about the speed of a garden snail, the report said "I think there are a lot of interesting aspects to this," said primegie These remote-controlled liquid crystal networks are like small artificial muscles I hope and believe that they can bring benefits to biomedicine, photonics and other fields in the future " Http://www.cankaoxiaoxi.com/science/20191206/2397147.shtml biodegradable plastic was selected as one of the top ten emerging technologies in 2019: environmental pollution buster The website of Scientific American monthly published an article in December Scientific American monthly, together with the world economic forum, convened an international steering group composed of well-known technical experts, and launched a review on 2019 The "top ten emerging technologies" were selected and the biodegradable plastics technology was selected According to the paper, biodegradable plastic can alleviate the ubiquitous problem of plastic waste, thus promoting the realization of the goal of "recycling" plastic economy, that is, plastic is produced in biomass and finally converted back to biomass Http://www.cankaoxiaoxi.com/science/20191203/2396887.shtml Russian scientists have developed a new system to deliver drugs to tumor lesions, according to ifmo ）The school's staff created an innovative system based on the principles of stem cell pathology that allows cells to penetrate tumor lesions and deliver drugs, the news center reported On the way to the delivery site (i.e to the tumor), the drug is closed and will not enter the body However, when stem cells "reach" the tumor site, the carrier capsule will be destroyed by laser In this way, the researchers believe, any anti-tumor drugs can be delivered to the diseased organs Scientists have carried out tumor ball model experiments, and the results are published in the Journal of biomaterials science Http://sputniknews.cn/science/201912051030172948/ new findings of Chinese experts' research: gene editing blocks the heredity of hypercholesterolemia family, International Peace Maternal and child health care Institute of China Welfare Association (hereinafter referred to as "National Maternal and child") recently It is disclosed that Huang Hefeng, academician of the Chinese Academy of Sciences, and Zhou Bin, research team of Institute of Biochemistry and cell biology of the Chinese Academy of Sciences, took the lead in finding out that gene mutations can be partially repaired by in vitro gene editing technology, making it possible to treat familial hypercholesterolemia The research is published in the latest issue of the journal Circulation Http://www.chinanews.com/gn/2019/12-05/9025793.shtml science foundation for exploring scientific research paradigm change will improve "six mechanisms" Li Jinghai, director of the National Natural Science Foundation of China (hereinafter referred to as NSFC) and academician of the Chinese Academy of Sciences, said at the International Symposium on the reform and development of NSFC recently that NSFC is promoting systematic reform with the main content of "clear funding orientation, perfect evaluation mechanism and optimize discipline layout" Through the discussion, the research funding institutions of the participating countries deepened their understanding of the transformation of research paradigm and global challenges, laying a solid foundation for further strategic dialogue and cooperation http://digitalpaper.stdaily.com/http_www.kjrb.com/kjrb/html/2019-12/06/content_436344.htm?div=-1