There is a myth circulating among the people in our country that an emperor hid in Yishan alone to make an alchemy, and really became a fairy and was able to ascend to heaven. Is Zhishan the Huangshan Mountain in Anhui Province today? Later, according to this myth, Emperor Xuanzong of the Tang Dynasty ordered that Zhishan be changed to Huangshan? Li Bai's famous phrase "Where immortals refine jade, there are feather marks" also says that Huangshan is a place where immortals refine alchemy? Myths such as alchemy ascending to heaven are not credible, but in today's advanced biology? With the rapid development of medicine, human beings can not only ascend to heaven, but also refine real elixirs and exotic medicines in space pharmaceutical factories? Take many people on earth who have incurable diseases back from death?
This is not nonsense, nor is it nonsense? We know that in today's world, many hormones? Enzyme? Antibodies or other specific drug preparations are made from cultured cells? However, there are many insurmountable difficulties in large-scale culture of living cells in vitro?
Usually, pharmaceutical scientists choose mammalian cells for culture? In order for these cells to continue to perform certain functions or carry out normal metabolism after leaving the original body, they must be attached to certain objects? If there is no attached surface, these cells will lose their viability and cannot produce valuable biological agents? In cell culture, it is necessary to specially design a multi-layer membrane culture tank suitable for their "residence" and provide them with necessary "nutrition". However, due to the mutual accumulation of cells, the lower cells will be suffocated by the upper cells?
In order to solve this problem, in recent years, foreign countries have switched to a small ball made of plastic, the diameter of which is less than one millionth of an inch, so that every cell can "live" on this ball, so that cells can survive well without interfering with each other? But on the ground, due to the action of gravity, the cells attached to the particles can easily settle to the bottom of the culture tank, thus forming a stacked layer several times thicker than the cells? The result is that the upper cells are "full" and the lower cells are "hungry"? Especially due to the accumulation of a large amount of metabolic waste at the bottom of the tank, the nutrient-rich cells in the upper layer may be buried by the toxins produced by the withered cells in the lower layer? To keep them alive, you have to keep stirring the nutrient solution? However, will rotating stirring accelerate the death of those already weak cells?
If you are in a pharmaceutical factory in Space City, can you solve some thorny biotechnology problems? Because in the weightless space environment, the cells and particles will not settle to the bottom of the container, so the cells can be safely suspended in the culture medium and keep vigorous vitality forever? In the future, we can use this method to produce a large number of biological agents in the pharmaceutical factory in Space City, and then export them to the earth to treat some stubborn diseases of the earth?
Another important application of weightlessness environment is the separation and purification of biological substances? For example, electrophoresis technology, which biologists and doctors are most interested in, will play an important role in the pharmaceutical factory in the future space city? The so-called electrophoresis technology is a method to separate particles with different mass-to-charge ratios in an electric field? Using this method, we can separate the mixture of different components, cells and protein, even "young" cells from "aging" cells or "healthy" cells from cells containing cancer cells? On the ground, electrophoresis technology is useless and it is difficult to play an effective role? This is because in the process of ground electrophoresis separation, no matter how small the particles are, they are precipitated under the joint action of electric field force and gravity. When cells or their culture media are electrically heated, convection and precipitation can occur simultaneously? If gravity is greater than electric field force, precipitation plays a major role, on the contrary, convection plays a major role? But both precipitation and convection will make the separated components mix again, thus greatly reducing the efficiency of electrophoretic separation? However, in the weightless environment, the above shortcomings no longer exist? During the joint flight of Apollo-Soyuz spacecraft, an electrophoresis separation experiment was carried out. The results show that urinary hormones can be separated from about 5% of renal cells under weightlessness? According to calculation, its separation efficiency is 6~ 10 times higher than that of the earth, and its quality is excellent? Is this urine hormone a specific drug for dissolving blood test or coagulation? On the ground, it is difficult to produce this urinary hormone. Even if it is produced, the cost is amazing? In the future, if mass production can be put into the space city, at least 50,000 people can be saved every year in the United States?
After the space shuttle is officially put into use, some industrial companies in the United States and western Europe plan to further carry out electrophoresis technology experiments in the space laboratory carried by the space shuttle? The first goal of the experiment is to separate hormones from plasma? Enzymes and protein? Weiss, an American expert engaged in the research of biological products in space, points out that the efficiency of producing plasma protein by electrophoresis in space is 700 times higher than that on earth?
Does the space pharmaceutical factory have a future for collagen? Will this collagen form tendons? Nerve? Skin? The basis of bones and blood vessels? Collagen extracted or copied from human tissues can be used as artificial skin and cornea for treating trauma or burn or other membranes for cardiovascular and plastic surgery? At present, Battier Laboratories in the United States is studying the manufacturing technology of collagen? But on the earth, it is very difficult to produce this kind of collagen, especially in the process of replication. Because of gravity, protein fibers are easily fixed, resulting in collagen gels with uneven quality? However, in the case of weightlessness in space, it is easy to produce excellent quality collagen? K, an expert at Battier Laboratories? Hughes believes that the value of high-quality collagen produced in space can reach 654.38+ 10,000 to 654.38+10,000 US dollars per pound, which is several times that of Huang Jingui!
All this can at least show that the prospect of developing medicine or biological products industry in space is exciting and fascinating? The production of vaccine products, the purification and manufacture of human cells and albumin, the preparation of erythropoietin, the production of various hormones or enzymes, and the separation and culture of white blood cells or red blood cells may all develop into a profitable industry? It is estimated that the annual economic benefit of vaccine alone will exceed $6543.8+$500 million? Therefore, the aerospace pharmaceutical industry and biological products industry will occupy a very important position in the future aerospace industrialization, and will also be one of the priority development projects of the future space city? Once the pharmaceutical factories or biological products operated by Aerospace City are put into formal production, a large number of special-effect drugs or valuable biological products will be exported to the earth every year and sold all over the world? It is conceivable that when some people on the earth came back from the dead after suffering from "incurable diseases" and took the miracle medicine of "Dan" from heaven, they would certainly not forget that the "savior" who saved them was originally the earthlings who moved to the space city?