This paper briefly introduced the classification of disposal face masks, and the composition and structure of key protective layer, in addition to its protection principle. The feasibility of reuse and disinfection of the disposable face masks with several common medical methods is discussed based on the physical structure and chemical composition of meltblown, the main protective layer, in addition to biochemical characteristics of new coronavirus.
Abundant basic pharmaceutical knowledge is involved in the detection of SARS-CoV-2 and the discovery and development of antiviral drugs. This paper gives detailed summary and provides rich materials for case teaching.
Considering COVID-19 epidemic prevention and control, education materials were excavated and refined, such as chemical disinfectants, typical drugs used in clinical treatment or trial and materials for preparation of medical protective equipment. We have carried out thematic teaching on "The important role of chemistry in the fight against COVID-19 epidemic", and integrated ideological and political education into the thematic teaching. Through thematic teaching, we can make students feel the charm of chemistry subject, stimulate students' interest in learning chemistry, fully mobilize students' learning enthusiasm and initiative, strengthen students' confidence and courage to overcome difficulties, cultivate the students' professional disciplines literacy and scientific literacy, activate students' love for the motherland, the people and the Communist Party of China.
Antiviral drug is a powerful weapon for humans to defeat the virus. The spread of 2019 novel coronavirus pneumonia (COVID-19) outbreak has a serious impact on the world. At the same time, it also makes people aware of the importance of antiviral drug development. This article reviews the application of the phosphoramidate prodrug strategy and the application of ProTide technology in the development of antiviral drugs. The synthesis methods of nucleoside-phosphoramidate prodrugs are introduced. The application of nucleoside-phosphoramidate in different antiviral drugs is also summarized. This review can provide a reference for the development of new antiviral drugs in the future.
A good way to understand the complex structures and mechanisms of SARS-CoV-2 is from the perspective of chemistry. The basic components, structures, and replication processes of SARS-CoV-2 are described in a firstperson perspective to elucidate the essential role of intermolecular forces in living organisms.
Gemini surfactants contain two hydrophilic and two hydrophobic groups connected by a linkage close to the hydrophilic groups. Gemini surfactants have lower critical micelle concentration, higher surface activity, greater efficiency in decreasing the surface tension of water and the interfacial tension between water and oil, and better water solubility than conventional surfactants. Gemini surfactants are widely used as sterilizing, bacteriostatic, anti-foaming, and drug release agents in various enterprises including food production and industrial cleaning. They, therefore, play a very important social, economic, and industrial role. This paper briefly summarizes gemini surfactant development, structure, self-assembly, activity, classification, and characteristics, as well as focuses on the antibacterial mechanisms of these compounds. It is expected that the antibacterial properties of gemini surfactants may help slow the spread of the novel coronavirus (2019-nCoV).
The COVID-19 pandemic caused significant losses to the global community. The pathogen, called SARSCoV-2, showed high infection rate and certain case-fatality rate, which bring great challenges to treatments. Vaccination is the major way for epidemic prevention which attracts several developers to conduct COVID-19 vaccine studies. This paper presents the design principle of a COVID-19 vaccine and summarizes the latest research progress on vaccine development. The authors hope to provide insights for understanding vaccine study of COVID-19.
Virology is a basic biological science which takes virus as the research object. By introducing the structure and detection technology of virus, especially the structure and function of SARS-CoV-2 in the course of Analytical Chemistry, students can understand the role of chemistry in the development of virology. At the same time, the introduction of relevant knowledge can create meaningful learning experience; it can also be combined with course ideology and politics, so that students can realize the importance of basic concepts in Analytical Chemistry, value orientation of Analytical Chemistry, and the importance of interdisciplinarity.
The coronavirus COVID-19 pandemic is the defining global health crisis, and potential drugs have attracted widespread attentions. The authors attempted to use the known potential drugs as teaching cases throughout the whole teaching process of heterocyclic chemistry. Under the special pandemic situation, the authors also focused on exploring and utilizing the ideological and political education cases that were related to pandemic as well as potential drugs of COVID-19. The ultimate purpose was to strengthen the effects on both knowledge teaching and value guiding, and thus improve the curriculum system construction. The reform of heterocyclic chemistry classroom teaching via case methods could build a bridge between "theoretical knowledge-heterocyclic chemistry" and "real world-drug application", which effectively aroused students' enthusiasm as well as initiative for learning, and thus significantly improved the teaching effects.
As the break out of COVID-19 epidemic, the prevention and control work was consequently carried out. Chemistry plays an important role in the white war. The structure of mask contains the knowledge of interfacial chemistry. The material of mask encompasses the knowledge of polymer chemistry. Nucleic acid test and COVID-19 vaccine research need the knowledge of biological chemistry. The sanitizers involve the knowledge of inorganic and organic chemistry. The knowledge of physical chemistry takes effect in daily hand washing with soap. Each drug against COVID-19 virus was a complex organic compound. All the above things can be taken as appropriate examples in chemistry teaching to display the charm of chemistry. Meanwhile, these examples help students to realize that chemistry works as a vital part in our lives and therefore active their motivation to study chemistry well.
Polymeric materials played an important role in the battle against novel corona virus epidemic. These materials can be seen everywhere not only from the conventional protective masks to professional protective equipment, but also from the expensive extracorporeal membrane oxygenation (ECMO) to the rapid construction of the Huoshenshan and Leishenshan Hospital. In this paper, the synthesis, processing and manufacture of these polymeric materials are introduced from the viewpoint of polymer chemistry, polymer physics and polymer processing, with emphasis on the important role of these materials in the battle against the COVID-19 epidemic.
The novel coronavirus disease 2019 (COVID-19) pandemic has enabled scientists around the world to work on the areas such as prevention of virus spread, virus inactivation, and vaccine preparation. Based on the development of nanotechnology, the emergence of some nanomaterials provides some excellent solutions to overcome the virus pandemic: by spraying nano-coating, the masks and protective clothing in medical institutions can be self-sterilized; by adding nano-adjuvants, vaccines can produce stronger responses to antigen of lower doses; by wrapping with nanocarriers, drugs can escape the monitoring of the immune system so as to obtain better antiviral effects. The unique chemical properties of some nanomaterials indicate the broad prospects in future applications. In conclusion, nanomaterials will play an important role in combating COVID-19 and the future anti-viral pandemics.
During the outbreak of novel coronavirus pneumonia, 84 Disinfectant has been widely used. It is very important to determine the available chlorine content in 84 Disinfectant. A new method to rapidly determine the available chlorine content in 84 Disinfectant by automatic potentiometric titration was established. Statistically, there is no significant difference in results between automatic potentiometric titration and manual titration. Combined the principles of analytical chemistry and the application to the determination of anti-epidemic material, this experiment has theoretical and practical significance, and can be used as an experiment in analytical chemistry laboratory for sophomore students.
COVID-19 has become a worldwide epidemic disease. In this nationwide battle against the novel coronavirus, polymer materials are playing important roles in personal protection, medical supplies, and construction consumables. This article introduces the preparation principle of polymer materials involved in scientific epidemic prevention, and integrates them to polymer chemistry course, so that students can combine them with practical life to deepen their understanding of polymer chemistry.
Biochemistry is a branch subject of chemistry, which is the study of chemical structures and processes associated with living organisms. COVID-19 pandemic is a problem for human beings. From the perspective of biochemistry, this paper demonstrates the chemical structure and interactions of SARS-CoV-2's spike protein and its receptor (human angiotensin converting enzyme 2), and summarizes the related research progresses. The authors hope to provide insights for the development of COVID-19 vaccine.
Through the introduction of several kinds of polymer materials which play an important role in COVID-19 epidemic prevention, the basic knowledge of the related polymers is popularized. In particular, the unique long-chain structure and excellent properties different from small molecular materials, including light weight, flexibility, easiness in processing, easy regulation of properties, are introduced.
The global spread of Corona Virus Disease 2019 (COVID-19) makes face masks become common protective equipment for daily life. This paper introduces the protection mechanism of disposable medical face masks, and investigates the changes of microstructure and filtration efficiency of disposable medical face masks after use and disinfection. It is helpful to get more understanding about protective effect of face masks.
