Programmable ink made from E. coli can "regulate the growth of its own cells." "Leather bags" in Super Mario Bros. But researchers Anna M. Duraj-Tatte and Avinash Manjula-Basavanna plan to pour a truly live stream into this direction.
A new type of ink for 3D printers with self-healing properties could play an important role in the future development of renewable building materials. Researchers at Harvard University and Harvard Medical School, among others, reported their findings in an article published Tuesday in Nature Communications. According to Phys.org on Saturday, the researchers' paper features ink made from cells of the intestinal bacterium Escherichia coli (E. coli), modified by bioengineering to produce nanofibers. The document explains that despite the success of 3D printing, creating freeform shapes and patterns is still quite a challenge. Therefore, the researchers set out to create what they themselves call "microbial ink" composed entirely of genetically modified microbial cells programmed to perform an upward hierarchical self-assembly of protein monomers into nanofibers, and then into networks of nanofibers that contain extruded hydrogels. " According to the researchers, the ink can "isolate toxic agents, release biomaterials and regulate the growth of its own cells" by chemical induction of genetic circuits. that can be used in a conventional 3D printer. By adding more components to the composition, including microbes, fibers and other biological materials, scientists were able to 3D print living materials, including one that, when chemically exposed, can release an anticancer drug.
Manufactured A bespoke 3D printer used by researchers.
Researchers also used living 3D printer ink to remove toxic BPA and were able to regulate the ink's own growth. In theory, such ink can produce ink on its own (imagine an infinite cartridge in your printer). The researchers said that living ink could be used for biomedical and biotechnological purposes. The document even proposes futuristic plans to create buildings from living and self-healing materials in space or other "extraterrestrial habitats" on Earth, the Moon and Mars. However, so far this is only research work, without the development of methods of mass production.
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