The big flying boys who went to Europe to compete in the competition probably couldn't imagine that their god-like leaders were not much better than the big boys.

"Oh, hello Miss Wang" may have been staring at others for too long, even Wu Chenxuan, who was as thick-skinned as Harvey armor steel, was a little embarrassed. "I came with the constitutional delegation, and I just visited your brother, Ambassador Wang, and was brought here by this Miss Mingyue. If you are disturbed, I hope Miss Wang will forgive me. ”

"Oh, is that so?" The technology woman on the other side didn't seem to care about this person's performance at all, in fact, although she faced this strange man just now, her eyes were not focused on Wu Daguan's face at all, "Then you just talked so much about the truth, but I don't know how you think you can analyze the effective drug ingredients in animals and plants?" ”

"What's this?" Wu Chenxuan looked at the equipment in this laboratory, and said in his heart that if you can use these things to figure out the mechanism of drug extraction, then the future overlords of pharmaceutical companies such as Bayer and AstraZeneca will live for a hundred years. "Miss Wang, I wonder how much you know about physics?"

"When I was a student at Main College, I also learned." The girl replied, "But it's obviously a chemical experiment, so what does it have to do with physics?" ”

Wu Chenxuan didn't take this stubble, because his chemistry score was just enough to pass the sum of the results of the three tests. "There are various reasons for the difference in the molecular structure of matter. The elements that make up the molecules of matter are different, and the molecules and their structures of substances are definitely different; The elements that make up the molecule of matter are exactly the same, but because the number of elements in the molecule is different, the molecular structure of the substance is also different; The elements and their quantities are exactly the same, but the connection order of each element is different, and the molecular structure of the substance is still different. The elements that make up the molecules of matter are the same, and they are the same in quantity and connection order, but the order of spatial arrangement is different, and the structure of the molecules of matter is still different; ……。 ”

A tongue twister-like physics knowledge, the girl didn't seem to feel dizzy at all, but groaned slightly, and said, "You are saying that the basic elements that make up different substances in the world are very limited in quantity, but the types of substances that exist in our world seem to be almost infinite, and the fundamental reason lies in the difference in the molecular structure of matter." The difference in the efficacy of drugs caused by different sources is ultimately due to the difference in the spatial order of drug molecules. ”

A scholar is a scholar, but it is not something that a scumbag of later generations like Wu Chenxuan can fool, even if he is a foreign product produced by a university assembly line hundreds of years later. In 1811, Avogadro published the Avogadro hypothesis, and he had already proposed the concept of molecules and the distinction between atoms and molecules. Generally speaking, the structure determines the properties, and the molecular structure of the two substances is different, so the differences in the physical properties (such as melting point, boiling point, etc.) and chemical properties (the characteristics of reacting with other substances and the characteristics of becoming other substances, etc.) of the two substances are enough to make people separate them and obtain a pure single substance, rather than a mixture of two different substances. However, although there are differences in the structure of some substances and molecules, there is almost no difference in their physical and chemical properties, and it is very difficult to obtain a pure substance, at least under the current technical conditions for some substances with such molecular structure differences. It seems that there is really no way for me to continue with the current conditions, and the analytical instruments here are simply not able to study the composition of matter at the molecular level. ”

Wu Chenxuan didn't expect this scholarly sister to understand it at all, you must know that the difference in the structure of material molecules that makes it very difficult to separate them is like the difference between the left hand and the right hand, so sometimes people also call this property of molecules molecular chirality. If a molecule of a substance is chiral, then there must be a molecule that seems to be its mirror image, i.e., the two molecules are as if one is a real thing, and the other is an image of this object in the mirror.

The only difference in the physical properties of these two molecules is that they can deflect plane-polarized light differently. The observable phenomenon manifested on the instrument is that one substance can deflect plane-polarized light to the right (denoted by "+" when naming) and is called a dextrarophone, and another substance can deflect plane-polarized light to the left (denoted by "-" in the name), which is called a left-rotator. The difference in their chemical properties can only be manifested when they react with molecules of substances that are also chiral.

"How so?" The female scholar understood Wu Chenxuan's plagiarized optical enantiomer theory, "Oh, I mean, how can you be sure that this kind of symmetry is universal, and it will lead to a completely different efficacy?" ”

Wu Chenxuan finally despised this scholarly sister, she was still poor in knowledge, and it was a hard injury to be specialized but not knowledgeable. Any scumbag in later generations could understand the composition of spirochetes, although they did not use a microscope to observe the genes they had contributed.

Wu Chenxuan found that the weakness of the scholar is that he will not pretend to be confused, and he knows under what circumstances he can drive the teacher crazy without being legally responsible. "The two optical enantiomers of drugs play different roles in the human body. Some drugs cure the left-handed body, but the right-handed body does not; The dextrogen of some drugs can cure diseases, but the levorotator can cause harm to the human body; The dextrotrophone of some drugs can cure the disease, while the levorotator can counteract the effects of the dextronators. This is related to the high stereoselectivity of biochemical reactions in the human body, that is, the molecules of a specific structure have a specific reaction, and the reaction will change if the structure changes slightly, and the final result is different. ”

"More often interestingly, there is often only one type of optical enantiomer in nature, and when a molecule is synthesized, it is often both molecules at the same time. Synthesizing or isolating purely optical isomers is a challenging task for scientists, and it is precisely because of this difference between synthetic and natural products that different sources of drugs can lead to changes in their effectiveness. ”

"Understood." This finally nodded, so that Wu Chenxuan, who had been a volunteer professor for three hours, finally felt relieved, and really didn't understand why those teachers often like to ask people at the end of class, "Students, do you understand?" If you don't understand something, please raise your hand and ask. …”

"But as far as I know, no such theory has actually been proposed in physics or chemistry. Where did you learn about this theory? The calm logic of the female student bully made Wu Chenxuan very helpless, and it can't be said that these third-rate college promotion textbooks of later generations can be found in them, although 99% of the students don't read them.

"Well, you see, when we mention drugs from nature, the word "traditional Chinese medicine" immediately comes to the minds of Chinese people. Right? Wu Chenxuan looked left and right, and his skills were also good.

This truth is not profound, but it is often misled, just like the pseudoscience promoted in a toothpaste advertisement: when the advertising slogan "combination of Chinese and Western medicine" appears, the structural formula of the material molecule and the image of the plant appear on the screen, which means that the structural formula of the material molecule represents Western medicine, and the plant image represents traditional Chinese medicine. This is purely misleading to the consumer, because it is also possible that the molecular structure of the picture is the molecular structure of the active substance contained in the plant next to it.

Before the introduction of modern science to China, due to the basic ignorance of the scientific fields related to drug manufacturing in China, Chinese cures were often to directly boil the roots, stems and leaves of plants or minerals with water, and finally take the decoction. This primitive method of curing diseases can also be observed in wild animals, such as elephants have been found to feed on certain plants when they are sick, but humans who know how to use fire will use a more advanced method of putting plants in a casserole, pouring water and boiling them, and then drinking the soup. However, the bad thing about this is that it will destroy the active substances that should work, such as the destruction of artemisinin by the decoction of traditional Chinese medicine, which will make the plants that could be used to treat diseases lose their due effect, which is a miracle medicine used to treat malaria in many novels. Sometimes, compounds in a variety of plants react unexpectedly, resulting in unknown changes. The use of modern pharmaceutical technology to extract active substances from plants and make medicines that can cure diseases is completely different from traditional Chinese medicine. Because before the manufacture of modern drugs, the active substances to be extracted will have a full understanding of the physical properties such as molecular formula, melting and boiling point and their related chemical properties, and the quantity of these active ingredients in the drug is specified, while the exact composition and quantity of traditional Chinese medicine cannot be determined after production and sales. Therefore, the difference here is that the traditional Chinese medicine refined by the modern pharmaceutical process is actually a substance whose molecular arrangement has been determined, while the traditional Chinese medicine itself is not clear which thing is useful, which is purely a number, and even some harmful. Of course, if only the pursuit of cure is pursued, Chinese medicine may not be different from modern industrially produced Chinese patent medicines.

"Oh, I see." Sister Xueba finally nodded yes, which made Wu Chenxuan, who had a dry mouth, take a breath, picked up the teacup and poured a few sips of herbal tea, "Are you confusing the concept and diverting your attention, you still haven't said why you can find this property of the molecule?" ”

Damn, isn't it said that girls are only more logical than babies? Why does this seem to have broken away from the ranks of emotional animals, and rationality makes people itch the roots of their teeth.

"Eldest sister, I'm guessing, okay?" Wu Chenxuan finally bowed his head, this person's aura is too powerful, outside the reflection arc of several kilometers, the logic is rigorous and outrageous, the thinking is quick and creepy, but he is still a natural stupid, I really don't understand which product this beautiful technology maniac is? Why don't you look at it and let it out to harm people?

"Eldest sister, I'm a junior college student at a third-rate pheasant university, how do I know the origin of these theories?" Wu Chenxuan almost kowtowed and begged for mercy.

"By the way, haven't you asked Miss yet, which university are these experiments the subject of?" Wu Chenxuan had already come up with the idea of sending someone to raze this harmful university.

"Whose problem? My doctoral dissertation will be reviewed next week, so how can I do it if I don't hurry up and do the experiment. ”

Female doctor, fresh species. Wu Chenxuan's heart muttered, why did this lonely man and widow stay in the basement for a long time, and no one came to see it, could it be that there was some premeditation?

Chu didn't know, the two adults who were upstairs just now were cracking the door, and a pair of old foxes listened to the conversation between the men and women inside, although they couldn't understand it professionally, but such a long conversation still made the two look at each other and smile, with a smile that had succeeded in their tricks