Chapter 2711 A new generation of biological 3D printer
Seeing such a captivating scene, everyone could not help but frown slightly and feel chills on their backs. Lin Wei and Zhou Xi even hugged their arms and felt a hint of chill.
Qin Ziheng smiled when he saw this and said: "The human tissues you see are actually related works printed by us through a biological 3D printer.
Of course, due to technical reasons, many of the printouts are actually failures."
Speaking of this, Qin Ziheng walked up to a transparent glass container, pointed to a complete liver inside and introduced to everyone: "For example, this liver is actually an artificial liver tissue printed by us using a biological 3D printer.
Although its printed form is complete, it lacks activity and therefore cannot be transplanted, so we made it into a specimen and displayed it here."
Isn't this good? Why did it fail? Hearing this, Zhou Xi looked at the very complete liver tissue in the container and couldn't help but ask.
Qin Ziheng smiled and said: "The principle of our bio-3D printing technology is to use human tissue cells to arrange and combine to form a complete tissue and organ.
In fact, all the organs and tissues of our human body are composed like this.
However, our rapid printing may bring about a series of problems, such as the relationship between printed cells and tissues, the activity of the cells themselves, and the function of the organ and tissue itself, which is healthy and able to function.
As for this liver, because the printing time was too long, the first printed tissue cells suffered massive necrosis, so it was no longer suitable for transplantation. It was originally going to be destroyed, but our scientific researchers felt that the shape of this liver was printed
The one was relatively perfect, so I suggested making this model.”
After hearing Qin Ziheng's introduction, everyone couldn't help but nodded. Indeed, biological 3D printing of organ tissue was unimaginable before. As Qin Ziheng said, it is composed of cells, and the technical difficulty involved
But it's not as simple as what he said.
Otherwise, this laboratory would not have attracted so much interest from foreign countries, who are trying every means to obtain relevant technologies. The security level here would not have been so strict, which can illustrate the advancement and importance of these technologies.
Zhang Jun, as for Zhang Jun, nodded slightly after listening to Qin Ziheng's introduction, and then walked straight into a cylindrical glass container, and what was displayed inside was a heart.
Half of this heart is complete, and the other half has been cut open, revealing the ventricles, new chambers, and valves inside. The entire shape, structure, and organization are exactly the same as a real heart. People who don’t know this would think this is a real heart.
The heart was removed from the corpse.
"Is this one also printed?"
Hearing Zhang Jun's words, Qin Ziheng nodded slightly and said: "Yes, this is also a complete heart tissue we printed. Like the previous liver tissue, it was also a failure in the experiment. Its overall function is not good, so
It was made into an exhibit and placed here.”
"The bulge on the surface is probably the coronary artery tissue." Zhang Jun said, looking at the heart.
"Yes, these raised blood vessels are tubular arterial tissue." Speaking of this, Qin Ziheng said to Zhang Jun: "Don't worry, we have accumulated a lot of experience in blood vessel printing. Whether the printed blood vessel tissue is...
Both the activity and function are very good, so there is no need to worry at all.”
Zhang Jun nodded, then turned to Qin Ziheng and said, "Let's go, wait until we go to your laboratory to take a look."
"Okay." Qin Ziheng nodded, and then led the way. Then everyone came to a very special laboratory. This laboratory was divided into two parts. One part was brighter and had various large screens on it.
There are various data information and pictures. The other part is relatively dark, with faint blue light scattered inside, and some smoke flowing.
The two parts are blocked by a full-body glass, and people can see what's going on inside through the glass. However, if you want to enter, you must go through another cleaning and disinfection channel.
And if you want to enter this laboratory, you need to wear relevant laboratory clothes and go through a cleaning and disinfection channel before entering.
After putting on special protective clothing and masks, Wu Hao and the others finally entered the laboratory.
Walking into the laboratory, everyone couldn't help but look at it curiously.
Facing the curious crowd, Qin Ziheng smiled and introduced: "This is our Bio-3D Printing Technology Laboratory No. 1, and on the other side of this glass is our latest generation bio-3D printer.
Compared with the previous generation of biological 3D printers, it has made great progress in technology.
The first is the printing size. The printing size of the previous generation of biological 3D printers is relatively limited, and the size and volume of the printed organs and tissues are relatively small. Therefore, only some small-sized organs and tissues can be printed, and large organs and tissues cannot be printed, or
Said that it needs to be divided into several parts and printed separately, and then sewn together.
Now, our new generation of biological 3D printers has expanded its printing size several times, and can basically print any organ or tissue in the human body, such as relatively large lungs, liver, small intestine, and some large muscles, bones, etc.
wait.
In addition to the expansion of printing size, we have also greatly improved the printing speed. First of all, on the printing nozzle, we use a new generation of biological cell printing nozzle. Its output is five to ten times that of the previous generation product.
In other words, its printing speed is five to ten times that of the previous generation product.
This also means that its printing time is shorter, and the printed organs and tissues are fresher and more active. In addition, it can also reduce the waiting time of patients, and can provide emergency printing services for some critically ill patients.
Don't make them wait.
Moreover, in order to adapt to the needs of printing some large-sized organs and tissues, we use a multi-printing nozzle design on the new generation of bio-3D printers, which means that the new generation of bio-3D printers can increase the number of printing nozzles according to the printing task requirements.
, thereby further shortening the entire printing time.
Like our generation of biological 3D printers, it can support up to six nozzles for simultaneous printing, which also means that its speed will be six times or even higher than that of traditional single-nozzle biological 3D printers.
Because the orbital coordinate stroke is shorter, each printing nozzle is only responsible for printing one area, and there is no need to make large movements, so the printing speed is faster."
