Vol 2 Chapter 1912: Birth of a skin

Genius to remember the address of this site in one second: []The fastest update! No ads! Wu Hao's words fell, and the short video of the promotion and introduction began to play.

As for Wu Hao, he took the opportunity to breathe a sigh of relief and took the water that Shen Ning handed over to drink. While drinking water, the makeup team next to him also quickly helped him with makeup and dressing.

After finishing this, Wu Hao took a break and waited for the video to end.

Appearing in front of the camera again, Wu Hao said with a smile: "Next, I will introduce to you two technical scientific research results created by our bioprinting technology.

First of all, because it is in the development stage, it is impossible for us to conduct biological clinical trials. So we will use some animals for experiments.

First of all, I would like to introduce to you that we have successfully printed a piece of pig skin tissue using pig cells.

We all know that the body structure of pigs is very similar to our human body, and even scientists and doctors have tried to transplant organs from pigs to humans. The heart is transplanted into the patient to replace the original heart.

Pig skin tissue is also very similar to human skin tissue. As long as pig skin tissue can be printed, in theory, human skin tissue can be printed.

After repeated experiments, we have successfully used pig cells to print a piece of pig skin tissue of 13 square centimeters.

The entire printing time took 11 hours and 7 minutes, which is relatively slow, but we successfully restored and printed a piece of skin tissue that is 100% similar to the skin tissue on the pig.

Please see, the thirteen square centimeters of skin tissue we have printed is very complete, including epidermal tissue and dermal tissue. Including the stratum corneum, transparent layer, granular layer and germinal layer in epidermal tissue. The vaginal and reticular layers in the dermis are also clearly visible under the microscope. We even printed out the cat's pores, sweat glands, hair follicles, and more.

To verify that the printed skin was alive, we transplanted it into a pig.

After continuous observation and care and treatment, we found that the printed skin has survived on the pig, the sutured wound has healed, and new hair has grown in the printed pores. "

At the same time as Wu Hao's introduction, related videos and pictures are also being played synchronously. In the video, a piece of fresh white skin about three or four centimeters square was taken out of the bioprinter by fully armed scientists. This is also the first time that everyone has seen the whole picture of this bioprinter. The whole bioprinter is very large, and it has a lot of prints than everyone imagined, and the overall appearance is white. From the appearance alone, it is impossible to tell that this thing is a bioprinter.

The skin that was taken out was immediately put in a storage box and sent to the operating room. An anesthetized pig was lying on the operating bed. The piglet was covered with green cloth on both sides, and the surgical wound was exposed in the middle. The pig's hair has been shaved, and a wound similar to the size of this printed skin has been cut, and the original skin of the piglet has been removed.

I saw the doctors take the printed skin out of the storage box, and after repeated disinfection, immediately covered the skin on the wound on the piglet, and then carefully sutured it.

Sutured on a piece of skin that was not much bigger than a coin, this extremely tested the patience of the doctors. With the dense figure-eight suture needles, this piece of skin was sutured on the wound of the piglet. After wiping, bandaging was subsequently performed.

The next step is to pay attention to the condition of this piece of skin every day, rush to the initial inflammation and swelling, and then gradually reduce the swelling and recover, the wound heals, and the sutures fall off.

There were even a few thin hairs growing on the implanted skin, and the skin was completely integrated with the skin on the piglet.

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Seeing this, everyone cheered excitedly. This is definitely a great scientific research achievement in medical technology. It is much more difficult to know that this is much more difficult than printing out the kind of blood vessels before. Skin tissue may seem simple, but it is actually very complex and has many functions.

This printed piece of skin not only survived the graft, but also survived very well, with hair growing on it. This shows that during the printing process, the pig skin tissue is perfectly reproduced, including the hair follicles in the skin, and has the growth function, so that hair can grow.

Pig skin tissue is very similar to human skin tissue. The success of this experiment means that since the pig skin that can be transplanted and survived can be printed, then human skin can be printed.

This is undoubtedly a great gospel for those patients with damaged skin and disfigured skin, allowing them to see hope again.

Of course, more people see infinite possibilities in this technology. Now, since this technology can print real skin tissue, it can also print other tissues and organs, which means that human cloned organ transplantation is not a dream in the future, which will greatly link the current lack of organ resources and save countless human life.

However, UU reading www.uukanshu.com When everyone was thinking about it, Wu Hao said: "At present, there are still many imperfections in this technology. The bioprinted skin tissue in this thirteen square meters is It is already a limit of our current technology.

If you want to break through, you must solve more problems. For example, the thorny problem that the printing time is too long and the efficiency is too low.

Unless we have a major breakthrough in these technologies, then it will be possible to print larger sizes of skin tissue and lay the foundation for printing other organs.

Of course, for now, this technology can also enter clinical trials. Although a single printer can only print such a large area of ​​skin tissue, if multiple bioprinters work together, the area of ​​skin tissue printed is also very objective. It is still very useful to use it to treat some critically ill patients with severely damaged skin, as well as some patients in urgent need of skin transplantation.

However, as we all know, this technology has not been successfully developed yet, and is limited by the cost of scientific research of the existing technology. The cost of this kind of bioprinting skin tissue is very expensive.

However, this is temporary, and as the technology continues to mature in the future, the cost will gradually decrease. "