Medicine all over the world is in acute shortagedonor organs. The doctors came to the aid of the technology of 3D printing of donor organs, developed by scientists from the University of Berkeley, who are also trying to solve the main problems arising from this method of creating organs for transplantation.
Biological material is quite plastic and notretains its shape during a long 3D printing process. Developers took the path of parallel layered printing of flat layers of organs, which later integrated into a voluminous solid body. To move and overlay the printed layers, a special rigid hydrophilic surface has been created, to which the printed material simply sticks, which allows it to be moved in different directions.
The second problem was the durationprinting process. For all the time from the beginning of the creation of an organ, the cells that were printed first are beginning to die off. The solution of the problem consists in the use of cryogenic printing, when, after the creation and application of each layer, the initial billet is frozen. The process is tightly controlled so that ice crystals do not destroy living tissue.
The use of cryopets has found another unexpectedapplication. With the help of 3D-printing, you can create food, which when melted into the mouth begins to melt. This will help to solve the problem of nutrition of patients who have problems with the use of hard food.