Shulou(Shulou.com)05/31 Report--

In the case of fractures-- more likely caused by weightlessness in space, under Mars' 0.38 gravity-- alternative bones can be inserted into the injured area using 3D bio-printing.

Scientists, including those from the European Space Agency (ESA), have developed a 3D-printed human skin and bone tissue that could help astronauts stay healthy during future missions to Mars.

Nives Cooper of the Dresden Institute of Technology (TUD) said: "skin cells can be biographically printed with human plasma. As a nutritious" biological ink ", they are easily obtained from task-based employees." . Germany.

"however, the plasma has a high degree of flow consistency, which makes it difficult to work under changing gravity conditions.

"therefore, we have developed an improved formula to increase the viscosity of the matrix by adding methylcellulose and alginate," Cubo said.

Astronauts can obtain these substances from plants and algae respectively, which is a feasible solution for self-sufficient space exploration.

The preparation of bone samples includes printing human stem cells with biological ink water samples, adding calcium phosphate cement as structural support materials, and then being absorbed in the growth process.

The researchers say the printing of skin and bone samples has been reversed to prove that bio-printing technology can be transferred to space.

They say that because long-term weight loss is unrealistic, the challenge of the "minus 1G" test represents the next best choice.

These samples represent the first step in an ambitious end-to-end roadmap to make 3D biological printing practical in space.

The project is studying the airborne facilities required for equipment, operating rooms and sterile environments, as well as the ability to create more complex tissues for transplants. It finally reached its peak in the printing of the whole viscera.

"the journey to Mars or other interplanetary destinations will involve space for many years," said Tommaso Gidini, head of the ESA's structure, mechanisms and materials department for the project.

"the crew will face a lot of risks and it will be impossible to go home early. Ghidini said that within the limited space and mass of the spacecraft, it is impossible to carry sufficient medical supplies for all possible events.

"instead, 3D bio-printing enables them to deal with medical emergencies. For example, in the case of burns, new skin can be biologically printed instead of being transplanted from other parts of the astronaut's body, causing secondary damage that may not be easy to heal in an orbital environment," Ghidini said.

In the case of a fracture-- more likely due to weightlessness in space, plus Mars' 0.38 gravity-- the replacement bone can be inserted into the injured area.

"in all cases, the printed material comes from the astronauts themselves, so there is no problem with transplant rejection," Ghidini added.

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