Don’t worry about 3D printed organs. Ultimately, the material may have its own lifespan. Phys.org Scientists report developing “living inks” that can be used to print similarly living materials that can be used to create 3D structures. The team genetically engineered cells from E. coli and other microorganisms to create live nanofibers, bundled those fibers, and added other materials to create inks that could be used with standard 3D printers.
Researchers have tried to produce biomaterials, but it has been difficult to adapt them to the intended 3D structure. Here it wasn’t a problem. Scientists have created one material that releases antineoplastics when triggered by chemicals, and another material has removed the toxin BPA from the environment. The design can also be tailored to suit other tasks.
Actual use may still be in several ways. For example, it is not yet clear how to mass produce ink. However, it may go beyond immediate medical and pollution control efforts. The creator imagined a self-organizing material for a building to be repaired by himself, or a building on the Moon and Mars that could reduce the need for resources from Earth. Inks can even be manufactured themselves in the right circumstances. You may only need a few basic resources to make what you need.
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https://www.engadget.com/living-ink-3d-printed-191010409.html?src=rss 3D printed “living ink” can lead to self-healing of buildings