Future Silk

[Image: Neri Oxman’s otherwise unrelated “Silk Pavilion” at MIT; photo by Steven Keating via Wired].

Research published last month in the journal Nano Letters suggests that silkworms fed a steady diet of carbon nanotubes can produce structurally stronger silk:

Silkworm silk is gaining significant attention from both the textile industry and research society because of its outstanding mechanical properties and lustrous appearance. The possibility of creating tougher silks attracts particular research interest. Carbon nanotubes and graphene are widely studied for their use as reinforcement. In this work, we report mechanically enhanced silk directly collected by feeding Bombyx mori larval silkworms with single-walled carbon nanotubes (SWNTs) and graphene. We found that parts of the fed carbon nanomaterials were incorporated into the as-spun silk fibers, whereas the others went into the excrement of silkworms.

Using animals as living 3D printers is thus more of a reality every year.

It’s also worth noting here that the resulting super-silk exhibited “enhanced electrical conductivity,” implying some strange new world in which conductive textiles and other flexible, wearable electronic circuitry could be woven in space by augmented silkworms.

(Spotted by Benjamin Bratton).

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