Although seven days is not enough time to rush from Sizhou Island to the mainland, don't forget that this epidemic is spread by humans. [phoenix/phoenix/ please search] There are ways to extend the incubation time, such as using two boats to relay, etc. .
Therefore, Jiang Xingchen is very urgent now. Once the other party gets crazy and wants to spread the epidemic to the mainland, there is no way to prevent it. Although there are only two ports, the coastline of the mainland stretches for thousands of miles, and some are landing places.
The old man also understood the importance of this matter. Once Jiang Xingchen's prediction came true, the disaster would be immeasurable.
As for who is secretly spreading the epidemic and what purpose they have, we can no longer worry about these for the time being. The most important thing is to develop penicillin as soon as possible.
"What's the progress now?" Jiang Xingchen asked.
Xin'er had been standing nearby with her eyebrows furrowed, not knowing what she was thinking. She was so lost in thought that she didn't even react when Jiang Xingchen asked.
"It still doesn't work!" The old man took over and said: "Cultivating Penicillium is not a big problem now, the main problem is extraction!"
Jiang Xingchen was scratching his head a little. He had definitely seen the method of making home-made penicillin in his previous life, and it was described in the TV series "The Benevolent Doctor". But at the time, he thought it was a bit exaggerated. Penicillin has high requirements on acid, alkali, temperature, and so on. It also requires aseptic operation, which seems to require many steps and multiple stages of reverse extraction to achieve sufficient concentration. It is not that simple.
Later, he forgot who he heard said that this homespun method was feasible, but he didn't review it carefully. As a result, he can't remember it at all now.
"After extracting a large amount of Penicillium for culture, what should we do next?" Jiang Xingchen was depressed. He would have just looked more carefully at that time. In addition, he remembered that during the Anti-Japanese War, Dr. Fu Lai also worked in Yan'an in an extremely simple and crude way. Penicillin was produced in a certain environment, but he did not know the formal methods and procedures.
"Xin'er, Xin'er!" When Jiang Xingchen was worried, the old man called to Xin'er beside him, what's wrong with this girl? She's been in a daze since just now.
"Ah!" Xin'er came back to her senses and asked, "Master, what's the matter?"
"What are you thinking about? I asked you about any progress and didn't say anything!" The old man raised his hand and knocked on Xin'er's head, with a feeling of doting. He was very, very satisfied with this apprentice.
Xin'er pondered for a moment and said: "I was just thinking about what this kind of refined penicillin would look like. Sir Alex didn't seem to mention it. But it certainly won't be applied externally to wounds like before. To treat the epidemic, it should be taken orally. Or injection. Then the extracted penicillin will not be this green and sticky thing..."
After Xin'er finished speaking, a flash of lightning flashed across Jiang Xingchen's mind, instantly illuminating the deepest memory image.
"Injection, colorless and transparent aqueous solution. By the way, penicillin is soluble in water!" Xin'er's unintentional reminder finally reminded Jiang Xingchen, and the scenes in the TV series reappeared in his mind bit by bit.
"After culturing, large impurities should be filtered, and then vegetable oil should be used to filter out fat-soluble substances and insoluble substances, leaving behind a penicillin aqueous solution..."
After remembering one scene, the following scenes will emerge one after another. Then, sterilized carbon is used to absorb penicillin. It is washed with distilled water, then acetic acid solution is used to filter out alkaline impurities, and finally a weak alkaline solution is used to precipitate weak acidity. of penicillin.
"Boy, have you thought of something?" The old man couldn't help but asked in a low voice as he saw Jiang Xingchen's expression constantly changing, sometimes pensive, sometimes surprised.
"Yeah!" Jiang Xingchen nodded vigorously and said, "Hurry up and get a pen and paper, I'll record it!"
The old man and Xin'er didn't care what Jiang Xingchen thought of. At the same time, he turned around and got a pen and paper. Jiang Xingchen lowered his head and quickly recorded the scene that flashed in his mind. He was afraid of forgetting.
In fact, he had no idea whether this home-made method would work, and the concentration was certainly low. In addition, the impurities left behind by using this method to separate penicillin were inevitable.
But now there is no other way, this is the only solution. Maybe Xin'er will develop a formal method of cultivating and refining penicillin in the future. But there is simply no time.
Normally, skin tests are required when using penicillin, but with the epidemic so raging, he ignored even this issue. Even if a few people died from drug allergies, it would be better than the epidemic being uncontrollable.
Soon Jiang Xingchen wrote down the steps. Master and Xin'er grabbed them immediately, read them twice, turned around and ran into the laboratory.
Jiang Xingchen did not follow. He had to make enough preparations. Petri dishes, test tubes, various glassware, carbon sterilization, and a sterile environment were all needed.
Turning out of the laboratory, Jiang Xingchen went straight to the glass production factory. All kinds of glassware must be made as soon as possible. In addition, needles also need to be mass-produced.
After leaving the glass factory, Jiang Xingchen went to Zhaojia Pharmaceutical. Mass production of penicillin cannot be done by just Xin'er and the old man, it requires a large number of manpower.
Zhao Zixiang was so frightened that he broke into a cold sweat after hearing what Jiang Xingchen said about the epidemic. He had also been caught up in an epidemic once, and the scene was really terrifying.
Then I heard that a drug was being developed, and without saying a word, I personally took hundreds of people to the university to help the old man and Xin'er.
After finishing all this work, Jiang Xingchen wrote a letter to the emperor and the emperors of the four kingdoms, explaining the overseas epidemic and his suspicions, asking all places to take more precautions, otherwise with the latent nature of this epidemic, once
It's impossible to control the explosion.
And just after Jiang Xingchen sent out a few letters, he received a letter from Lao Si, saying that an epidemic had also appeared on Mingque Island. Although he was informed by the old man that the precautions were very strict, he still could not stop it. Before sending the letter, the port
A sick patient has appeared, and everyone who has been in contact with this person has been quarantined.
Jiang Xingchen's face was as gloomy as water. Now he was sure that this method was aimed at him. Otherwise, why would Chongming Island and Mandan Island be fine? They were the hardest hit.
"The eldest son of the An family, Nangong? Is it you again?" Jiang Xingchen slapped the table hard...
At the same time, to the north of a small island three hundred miles away from Ming Port, two five-story treasure ships were floating quietly on the sea.
In the cabin of one of the ships, the man in black robes who had appeared in the capital of Moon Shadow Kingdom was sitting on a chair, his head and face still hidden in the shadows.
Two big men were kneeling in front of him, reporting in a low voice: "Sir, we are ready. Do you really want to enter the mainland? Then will our actions on the mainland in the future..."
"You talk too much!" The man in black robe said in a deep voice.
The big man trembled violently and said quickly: "I'll do it now, I'll do it now!" As he said that, he pulled the people next to him and ran out of the cabin quickly.
"Hmph!" The man in black robe sneered, and the light in his eyes flashed under the shadow! (To be continued.)
p: After checking a lot of information this afternoon, I can only write out two thousand for this chapter! Sorry!