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Architecture

A 3D printed "living ink" can give us self-repairing buildings

Properly engineered bacterial cells have produced a 3D printable ink capable of organizing itself into a thousand structures.

November 29, 2021
Gianluca RiccioGianluca Riccio
⚪ 2 minutes
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Living ink

Electron microscope images of self-assembled nanofibers from "living ink". A. Duraj-Thatte, A. Manjula-Basvanna et. to the.

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Forget the (albeit important) 3D printed organs: the latest news is that the materials could have a life of their own. A group of researchers from Harvard and Brighton Universities have developed a "living" ink that could transform three-dimensional structures as we know them today.

In research, published in the latest issue of the scientific journal Nature Communications., the team genetically engineered E. Coli cells and other microbes to create living nanofibers. The fibers were then grouped, and with the addition of other materials they formed an ink compatible with any standard 3D printer model.

Living material

Living ink
In the image, the scheme of the design, production and functional application strategy of the microbial ink. 

Researchers have already tried to produce living material, but it has been difficult to get those substances to fit the expected 3D structures. This time or the results were very different.

Drawing solutions with an ink that becomes what you need

In this new study, however, scientists have created an extremely functional material with this living ink, which has been used successfully for two "missions".

The article continues after the related links

First nerve networks 3D printed with bioink

3D printed muscles: a bioink can change the rules of the game

In the first, the material released an anticancer drug when "stimulated" with chemicals. In another, it removed BPA, a toxin that also causes fertility problems. The versatility of this ink also allows its structures to be adapted to other activities.

There are still open questions: for example, how will it be possible to produce this ink in series? Any practical uses may still be a long way off, but there is potential. Much potential, even beyond pure medical or environmental applications.

Among the possible applications, the creators of living ink envisioned self-repairing buildings or self-assembling materials for buildings on the Moon and Mars that could reduce the need for resources from Earth. The ink could even produce itself under the right circumstances: truly advanced frontiers, all to be discovered.

Tags: Bio-inkbuilding3d Press

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