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3D printing saves hair loss! New technology or unlimited supply of hair follicles

2024-02-28 11:21

Recently, a new study by American scientists claimed that they have successfully printed the world's first functional hair follicle, which has been published in the journal Scientific Progress.

It is reported that the study was led by scientists from Rensselaer Institute of Technology in the United States, and the team of scientists for the first time 3D printed hair follicles in human skin tissue cultured in the laboratory, with the potential to treat hair loss symptoms.
In the experiment, scientists first let skin and hair follicle cell samples divide and reproduce in the laboratory until there are enough printable cells. Next, researchers will mix each type of cell with proteins and other materials to create the "bio ink" used by the printer. Using extremely fine needles to deposit bio ink, the printer builds the skin layer by layer while also creating channels for depositing hair cells. Over time, skin cells migrate to these channels around hair cells, reflecting the structure of hair follicles present in real skin.
At present, the lifespan of these 3D hair follicle tissues is 2-3 weeks, and future research aims to extend this period to further mature hair follicles and pave the way for their use in drug testing and skin transplantation.
Although it will take several years to design skin grafts that can grow hair, this study still has potential applications in regenerative medicine and drug testing.

"The current development success is only a proof of concept, confirming that hair follicle structures can be created in a highly precise and repeatable manner using 3D bioprinting. This automated process is necessary to make future skin biomanufacturing possible," said Pankaj Karande, who was responsible for this research.

In 2019, researchers at Columbia University in the United States created a unique mold using a 3D printer to stimulate hair follicle growth
In fact, since the development of 3D technology, scientists have been trying to use it to solve the problem of hair loss. For example, in 2019, researchers at Columbia University in the United States created a unique mold using a 3D printer. The design of these molds is similar to a natural microenvironment, stimulating hair follicle growth through tiny extensions that are half a millimeter wide.