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Completed TRL 3 (started at 2, targeting 3)
Three types of prototypes will be made, one tube laden with cellulose-producing cells, a second tube with \u03b2-keratin- producing cells, and a third composite with alternating voxels of both types to study a composite variant. The ultimate strength under tension, compression, and multipoint bending of the three iterations will be compared to NASA's stated needs for lightweight, multifunctional materials. Three tasks are defined to achieve goal: (1) engineer organisms to produce structural biochemicals, (2) 3D print the task 1 organisms into hollow tube prototypes, and (3) mechanical characterization of the task 2 prototypes.
The goal is to revolutionize space architecture by combining the unique properties of biological materials and structures in an engineering-friendly form for in situ, on demand production and\nthe creation of a sustainability strategy for in-space human use. This capability will enable a strategy of easy replacement of damage and natural wear by allowing recycling of pre-designed objects, and rapid production of novel components and structures, thus freeing space explorers and settlers from the need for perfect foresight in anticipating what they will need in their immediate situation and longer term future. This work employs a combination of biologically-inspired component shapes (bird feather vanes) with actual material production by harnessed organisms and processes based on concepts demonstrated in a NIAC Phase I.
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