[quick news] watch out on March 22, 2019! The period of validity of drugs after opening

Watch out! Recently, the period of validity of the medicine has been sharply reduced after it was opened A message on the Internet has attracted everyone's attention According to the US National Pharmacopoeia (USP), the cotton and desiccant attached to the medicine can absorb water, so once opened, they must be discarded immediately, otherwise they will become the pollution source in the medicine can Shi Huifeng, pharmacist of the Pharmaceutical Department of Aviation General Hospital of China Medical University, pointed out that drugs are usually opened in the hands of patients, and there is no risk of violent shocks Therefore, cotton or white paper can be "retired" and it doesn't matter if they are discarded But the desiccant is not recommended to be discarded immediately after opening, because its "mission" of drying will continue until all the pills in the bottle are consumed Therefore, we should pay attention to the sealing of the bottle at ordinary times, and do not open the bottle cap for a long time when taking the medicine, so as to avoid the failure of the quantitative desiccant in the bottle due to excessive absorption of moisture in the atmosphere Of course, patients should also be careful not to take the desiccant by mistake As for the tablets packed with aluminum and plastic, since each tablet is packed separately, it is OK to discard the desiccant Http://digitalpaper.stdaily.com/http_www.kjrb.com/kjrb/html/2019-03/21/content_.htm? Div = - 1 scientists turn seawater into hydrogen fuel, and the ocean is likely to become a valuable source of renewable energy Researchers have always regarded electrolytic water as a promising renewable energy source But there are many obstacles in this way: a main problem is that only pure water can be used for electrolysis, and seawater often corrodes the electrolysis system So a research team at Stanford University tried to find a way to prevent salt water from corroding the electrolysis device The researchers designed a device to demonstrate the electrolysis process, in which hydrogen is decomposed from seawater and oxygen comes from the anode They stacked nickel iron hydroxide and nickel sulfide on the core of the nickel foam to form a barrier to slow down the decay of the underlying metal By acting as conductor, the nickel foam transfers energy from the power source, and nickel iron hydroxide can stimulate electrolysis With a nickel layer, the device can run for more than 1000 hours This simple approach is expected to accelerate the spread of clean energy Https://www.engadget.com/2019/03/18/scientists-can-turn-regular-seawater-into-hydrogen-fuel/brain and cognitive science laboratory jointly established by University of Macau and Chinese Academy of Sciences Recently, the University of Macau and the Institute of biophysics of the Chinese Academy of sciences have set up a joint laboratory of brain and cognitive sciences in Macao, which will lead the development of Macao in the field of brain and cognitive science research and contribute to the development of related disciplines and talent cultivation in the Great Bay area of Guangdong, Hong Kong and Macao Song Yonghua, President of the University of Macau, and Xu Ruiming, director of the Institute of biophysics of the Chinese Academy of Sciences signed relevant cooperation agreements, and both sides also held a unveiling ceremony for the laboratory In his speech, song Yonghua said that the University of Macau attaches great importance to the development of brain science and cognitive science, and constantly carries out relevant cross research work The establishment of the laboratory is not only a affirmation of the research results of both sides in the field of brain and cognitive science, but also conducive to the complementary advantages and strong alliance of both sides Xu Ruiming said that the University of Macau is an international comprehensive university After comprehensive structural reform in recent years, it has entered an unprecedented stage of development and has unique discipline and strength advantages in cognitive science, neuroscience, brain imaging and other fields The unveiling of the laboratory marks a substantial step in the cooperation between the University of Macau and the Institute of Biophysics, Chinese Academy of Sciences Http://www.xinhuanet.com/gangao/2019-03/20/c_.htm team of Ding Hong, Qian Tian and sun Yujie, researchers of Institute of physics of Chinese Academy of Sciences / National Research Center for condensed matter physics of Beijing, researchers of new chiral fermions discovered three-dimensional material Cosi together with Lei Hechang, Department of physics of Renmin University of China The existence of a new type of chiral fermion The experimental results prove the existence of new chiral fermions and provide an ideal platform for exploring novel physical phenomena caused by chiral fermions Relevant research results were published in nature on March 20 Scientists believe that the discovery of new chiral fermions beyond the fermions is not only a breakthrough in the field of topological Semimetals, but also provides more ways to explore the physical phenomena related to chiral fermions, which has important scientific significance and application value Https://www.nature.com/articles/s41586-019-1031-8 new progress has been made in the single extracellular vesicle analysis of Dalian Institute of chemistry, Chinese Academy of Sciences Recently, Lu Yao, associate researcher team of Dalian Institute of chemistry, Chinese Academy of Sciences, cooperated with Professor Liu tingjiao of Dalian Medical University to make new progress in the multi parameter analysis of single extracellular vesicles The related research results were published in the proceedings of the National Academy of Sciences In this study, the researchers used the antibody bar code array microfluidic chip to achieve high-throughput immunophenotyping of multiple external vesicles from the same single cell source; and applied it to the primary cells of oral squamous cell carcinoma cell line and multiple surgical tissue samples of patients with oral squamous cell carcinoma, initially found the tumor metastasis related external vesicle subpopulation; also achieved the same single cell secretion of egg The results showed that the secretion of protein and vesicle was dominated by different cell subsets https://www.pnas.org/content/suppl/2019/03/08/1814348116.DCSupplemental