Chapter 161：

Unlike the new application in CH5 solution, organ freezing is an applied project. After the results of this project come out, it is not for pharmaceutical companies, but for organ centers and hospitals. It needs a universal technical standard.

For example, the choice of blood substitutes, the flow rate and temperature of blood entering the heart and vessels, etc., every detail needs to be compared, selected, and confirmed countless times, and each selection confirmation requires huge data to support the argument. This kind of experiment is an extremely test of the level of a laboratory.

With the assistance of a supercomputer, it took nearly four months for everyone in the laboratory to complete the preliminary data measurement.

"Li Zheng, the thawed heart cells are kept intact, and the technical problems are not big, but experiments at this stage show that pure freezing cannot keep the organs infinitely stored." Liu Sichao took off the mask and frowned.

Li Zheng pursed his mouth and quickly flipped through the experimental records in his hands. Both he and Liu Sichao were masters in experimental manipulation. This experiment was done by the two themselves, and the technical operation was almost perfect.

Li Zheng closed the experimental record in his hand and said, "Meng Jie and Zheng Guangye, you four will show it to us once."

"Ok...Okay, Li...Professor Li!" Meng Jie was so excited that Lienba was better.

Zheng Guangye also showed a hint of joy on his face. Since the talk at the flower house, he went home and discussed his future development path with his family. After this project is over, he will leave the laboratory and join him in a certain ministry in Huajing.

Zheng Guangye held the experimental notebook tightly. Before leaving, he wanted to make something to commemorate his seven-year biology career.

"The computer debugging is complete, and the No. 1 solution is ready."

"No. 1 liquid is filled and entered, and the external interface controls the flow rate."

"Lu Xue, warm up."

"Okay, the temperature is rising, 20, 25, 30, 40, the temperature rises to 50, the best temperature is reached, and the external interface is opened."

"The No. 1 fluid flows into the heart, the temperature is normal, the flow rate is normal, and the sensor is normal."

Half of the monitors of the supercomputer were installed in the laboratory. The four monitors on the wall flashed countless numbers densely. While quickly recording, Sun Bin looked up and quickly swept from the leftmost screen to the far right.

Li Zheng and Liu Sichao stood by, watching the movements of these four "little guys" without blinking, and their frowning brows did not let go.

"The heart rate continues to slow down, Xiao Liu, highlight the heart data!" Sun Bin shouted to Xiao Liu in the glass compartment next to him.

Xiao Liu kept tapping on the keyboard with both hands. Hearing Sun Bin's shout, he raised his hand and gave him an OK gesture.

With the introduction of No. 1 blood substitute liquid, as well as changes in temperature and flow rate, the beating speed of the heart slowly decreases and gradually stabilizes, keeping the heart's activity at the minimum limit.

"These little guys are very good." Liu Sichao praised it rarely.

Indeed, although they didn't know how many times they had done this experiment in the past four months, it was led by Li Zheng and Liu Sichao. It was the first time that the four of them did it by themselves. It is already very remarkable to be able to do this.

however……

"Beep toot" heart detection sounded an alarm, and the broken line on the screen became smooth at a speed visible to the naked eye.

"Heartbeat drops! Fast! Adjust the temperature and flow rate! The human body simulation environment is ready! Fast!" The four people were panicked when they heard the alarm sound. Even if Zheng Guangye reacted immediately, the data on the sensor was getting smaller and smaller.

"Beep..." With a gentle beep, the wave line on the screen turned into a straight line, and the heart stopped beating!

The faces of the four were pale.

"Professor..." Sun Bin drooped his head.

The corner of Li Zheng's mouth twitched slightly, but his face soon became serious again, "Try again!"

The four of them were shocked, Zheng Guangye pursed his mouth, and said, "Computer preparation, do it again!"

Repeated five times, the four of them finally reached the defrosting stage and carefully neutralized the liquid nitrogen to thaw the heart. The results of the experiment were the same as those of Li Zheng and Liu Sicong. The cells were not depleted, but the heart activity was also weakened during freezing. Freezing alone cannot achieve unlimited storage of organs.

"It's anti-corrosion. One less low-temperature anti-corrosion process!" Li Zheng said in a deep voice.

Liu Sichao nodded after hearing the words.

Although knowing the missing steps in the technical process, the ninth laboratory tried countless existing low-temperature anti-corrosion formulas, none of which could meet the requirements of their experiments. In other words, their experiments were stuck.

This card came to 1986.

During the period Liang Zhe flew over twice, because Li Zheng was still in the project research stage, the two couldn't say a word at all. Li Zheng really felt that Liang Zhe didn't break up with him. It was absolutely true love.

In January 1986, Zhao Depei personally came to "warn" Li Zheng that he had been absent for a long time. Huaqing has regulations that no matter how big the professor is, one class a month must be guaranteed. The letter of appointment signed by Li Zheng and Huaqing also included this clause, but Li Zheng was so confused by this project during this period that he simply forgot This crop.

The Huaqing leadership also devoted themselves to the establishment of the Huaqing Award, and they didn't care about it. No, Zhao Depei came to the door after a little free time.

Li Zheng rubbed his temples, "Well, you can arrange your time." He replied.

So the next morning, Li Zheng stood on the podium of the classroom on the first floor of the Teaching and Research Building.

The classroom was densely packed with people, and many people brought their own stools to sit in the hallway of the classroom.

The people in the first few rows are all older, familiar and strangers, probably from the faculty and staff of Huaqing and other schools. By the way, the materials that Li Zheng compiled and described in the last public class have been proofread by Huaqing University Education Press and officially published at the end of 1985.

It was listed as a designated book for biological laboratories by the Huaguo Research Institute, and the biology departments of many universities in China also included it in the list of textbooks. This "Biological Research Guide" is also one of the important reasons why the classroom is full of seats. .

Li Zheng rubbed the watch on his wrist with some guilty conscience. Compared with the last time, he was not prepared for anything this time, so what to say.

Looking at the neatly arranged notebooks on the desks of the first few rows of colleagues, Li Zheng squinted his eyes, but he still had to say something about it.

What he is familiar with, has content, and can talk about it on the spot without preparing now, then there is only the topic of "extending organ storage time" that is currently underway.

"What we are discussing in this class today is the current experimental project of the Ninth Laboratory, organ storage."

"I believe everyone is familiar with this subject. After all, the dispute between UW solution and CH5 solution was raging last year. What I want to talk about today is the second phase of this project, the infinite time storage of the heart."

There was a rustling discussion in the classroom immediately. Although Li Zheng mentioned this concept as early as the Chicago TV station, and the domestic media has also reprinted it, the ordinary people look at the problem, and the professional sees the problem. The depth is still different.

The experts and scholars in the front row realized the significance of this topic as soon as they heard it. The heart is the most sophisticated organ of the human body outside the initial brain. The success of the infinite time storage of the heart means that the storage of organs will enter a permanent era.

"Professor Li, is this really possible with the current level of technology?" A middle-aged man in the second row couldn't help but ask.

He is an associate professor of biology at Yan'an University. Yesterday I heard that Professor Li from Huaqing University was going to class. The Department of Biology at Yan'an University instantly exploded. The professors didn't even want to go to class. They spent a whole day discussing whether they wanted The problem of going to Huaqing to attend a class.

They want to go, of course, but Chinese people love face, and Chinese scholars are among the best. Although Huaqing and Yan University are brother schools, they are both in Huajing, and they are also the top universities in China. This competitive relationship is naturally indispensable.

They were dignified by Professor Yan University and went to listen to a lecture given by a Huaqing lecturer. This was a loss! Yes, although everyone in Huaqing calls Li Zheng a professor, he is still just a lecturer according to his professional title.

But don't go! How does that work!

They also read the "Biological Research Guide". This book almost traverses the development process of biology from its founding to the present, and lists the major experimental projects in the history of biology according to categories, and analyzes its experimental procedures. Skills, summarize and summarize.

This group of Yan University professors looked at it over and over and said they had benefited a lot or underestimated its role.

In case that Professor Li Zheng is still hiding something, in case the group of Huaqing guys are really self-cleaning, and they are not printed and published in a book, then where do they cry, so they struggled for a day, these Yan University professors still decided Come to the class.

"Of course." Li Zheng laughed. "Now the ninth laboratory has achieved damage-free heart freezing, and the storage time of the heart has been extended to 168 hours from the 72 hours announced by the American Organ Transplantation Association. This is also a breakthrough in the history of organ storage. Sexual progress."

"Of course, there is still a big gap between 168 hours and unlimited storage, but the road is always the first step, isn't it?" Li Zheng replied with a smile.

The discussion in the classroom is louder, 96 hours!

Professor Li said that the situation is light, but the people under the stage know what these 96 hours represent. The storage time of organs has more than doubled, which means that countless individuals will benefit from it because this technology is regained newborn.

After a while of discussion, they quickly calmed down, and at the same time held their breath, listening to Li Zheng on the stage to describe the specific matters of the laboratory project.