On the Relationship between Modern Life and Chemistry Abstract: 2 1 Century, there is a close relationship between human life and chemistry, and chemistry plays an extremely important role in information and life sciences. The intersection of chemistry and these disciplines will bring profound changes to human life. Chemistry is closely related to all sectors of the national economy, frontier science and technology fields and all aspects of people's lives. 2 1 century, people enjoy and rely on the convenience and high-quality life brought by chemistry more and more. Keywords: chemistry and life; Biotechnology; Chemistry is everywhere in information technology life, and there are many problems in daily life, such as materials, energy, environment, life science and so on. , all reflect the close relationship between chemistry and human and social development and the latest achievements in chemical development. With the improvement of living standards, people are increasingly pursuing a healthy and high-grade life, and the relationship between chemistry and life is getting closer and closer. As long as you pay attention to observation and test with your heart, you will find that chemical knowledge in life can be seen everywhere. Chemistry is a natural science with rich experimental contents. Chemistry should be a lively, close to life, natural and mysterious subject. Life is full of traces of chemistry, chemistry is around us, and practical problems in life can be solved with chemical knowledge. Chemistry can serve the society, other disciplines and mankind. In 2 1 century, the demand and utilization of chemistry will increase day by day, and the new demands of people for food, clothing, housing and transportation are closely related to chemistry. Gene therapy, genetically modified food, stem cell technology, environmental protection clothing, intelligent materials, clean biomass energy, nanotechnology, etc. People should constantly create new chemical products by chemical methods; Create new drugs to fight cancer, AIDS, SARS and other viral diseases; Overcome Alzheimer's disease, heart disease, stroke and other diseases that affect health and longevity. 2 1 century, the research on biological structure in the field of biochemistry has changed from static to dynamic, from molecular structure to complex structure at molecular and even cellular level, and the research on the relationship between the structure, properties and functions of biological functional molecules has changed from single molecule to multi-molecular system and even cellular system. Modern technology has been able to isolate and identify genes that can be used to make special protein, and then combine these genes with organisms such as yeast to make the desired protein. For example, insulin or human growth hormone, which is very important to human beings, can modify the gene sequence through chemical changes, thus producing protein with better characteristics. In the 2 1 century, there is a particularly concerned field, that is, the serialization of the human genome. All the important protein in the human body are made under the guidance of genes. Genome refers to all the genetic DNA in the nucleus, which carries thousands of individual genes, each of which contains hundreds or more DNA units and plays the role of cipher letters. There are hundreds of millions of such units in the human body. It is necessary to find out the gene sequence of human body and determine the chemical sequence in each gene. It is very important to further understand the chemical nature and importance of life and its importance to health. Gene therapy is one of the most interesting new fields in the medical and health field in 2 1 century. Some diseases in the human body are not caused by the invasion of certain microorganisms, but are related to our own genetic defects. Pharmaceutical chemists are trying to develop a method to release DNA fragments into cells to replace defective parts; This is a highly competitive field in 2 1 century, and future gene therapy will help to solve the health-related problems that cannot be solved at present. Bill Clinton, the former president of the United States, once showed the public the blueprint of personalized medical care in the future: if you go to a hospital and are diagnosed with a certain disease by a doctor and have a series of tests, the doctor will only provide you with a set of treatment information for you to choose from. You only need to insert a floppy disk with your own gene file into the computer, and at the same time, input the information of diseases and treatments, and the computer will prompt you to choose what medicine, the best dosage and dosage form, and the effect after taking it. In this way, people will get the best therapeutic effect and the side effects of drugs will be minimized. Entering the 2 1 century, we are experiencing a new technological revolution, the core and mainstream of which is the information technology revolution, which will definitely have a great impact on our lives. In information science and information technology, sensing technology, communication technology and computer technology are typical. They are roughly equivalent to human sensory organs, nervous system and thinking organs. The integration of sensing, communication and computer technology into the network marks the arrival of the information society. The task of sensing technology is to collect all kinds of information accurately, efficiently and reliably. Therefore, it is necessary to develop remote sensing, telemetry and various high-performance sensors, transducers and displays, such as satellite remote sensing technology, infrared remote sensing technology, infrasound and ultrasonic detection technology, as well as various heat-sensitive, sound-sensitive, taste-sensitive, smell-sensitive and intelligent sensing systems. The development of information technology is changing people's living standards. The close relationship between information technology and chemistry is mainly manifested in the production of information materials with different functions through various chemical synthesis methods, mainly including electronic materials and optoelectronic materials. Various new materials with continuously improved electrical, magnetic and optical properties have promoted the development of electronics. What will the function and speed of the computer become in the future, and will it really rival or even surpass the level of the human brain one day? I'm afraid it depends on whether the miniaturization of computer circuits can continue and whether the integration of chips can be continuously improved. Microelectronics technology based on semiconductor silicon follows a very famous law: Moore's Law, that is, the running speed of the circuit is about doubled every 18 to 24 months. After 40 years of reform, solid-state microelectronics technology has developed to the level that millions of transistors with the size of 0. 18 (micron) can be fabricated on a silicon wafer as small as a few square centimeters. But compared with molecular devices, it is still too big. Suppose that the current transistor is equivalent to a page full of words, and the molecular device is only equivalent to one cycle. Even though the scale of silicon transistor may be reduced to 12 ohm (nanometer) within 12 years, compared with molecular devices, silicon chip is still 60o00 times larger! Furthermore, no one thinks that the traditional silicon-based microelectronics society will continue to develop according to Moore's law, which is related to the fact that chip manufacturing experts think that it is not economical to continue. When more transistors are made on a chip, stray signals, chip heat dissipation caused by too dense devices and the manufacturing difficulty of devices themselves will all affect the progress of this technology. In fact, it is becoming more and more difficult to innovate and manufacture effective subminiature silicon transistor and its connection technology. Many experts believe that when the transistor reaches the level of 0. 1 micron, the challenge will become more intense, because the difficulties encountered by integrated circuit processing technology increase exponentially with the increase of transistor density, but its economic benefits may not reach the same growth rate. Many experts believe that the output value of the chip will reach $200 billion around 215, and its continuous miniaturization will also stagnate, because the cost of increasing the chip capacity is too high at this time. The great progress in molecular computer research in recent years provides another possible direction to solve this problem. Although it is too early to predict its success, many achievements in this field in recent years show extremely encouraging prospects. In short, in the 2 1 century, chemistry is closely related to all sectors of the national economy, all fields of cutting-edge science and technology and all aspects of people's lives. It is an important basic science, and its relationship and position in the whole natural science, as [America] PI-MentelGC pointed out in the book Opportunities in Chemistry-Today and Tomorrow, "Chemistry is a central science, which is closely related to all aspects of social development." The intersection of chemistry and other disciplines will be the inevitable trend of scientific development in the 265,438+0 century. Many emerging interdisciplinary fields, such as life science, materials science, environmental chemistry, green chemistry, energy chemistry, medicinal chemistry, computational chemistry, nano-chemistry, etc., will greatly change the scope and significance of traditional chemical science, and have and will greatly change the survival, development and lifestyle of society and individuals.