Caltech Takes 3D Printing to the Nano Level

Posted Date 02/15/18

Caltech scientists have managed to adapt metal 3D printing to the nano scale. The technology they have developed for 3D printing nanostructures with other materials is called two-photon lithography. At first, using it proved unsuccessful as it involves laser beams that harden liquid resins, and metals are no resins. But a member of the team found a way to make a special resin from molecules that bind to metal, so the printing materials is actually made of polymers and metal. This material allowed the team to print the smallest metal structures to date. The technology could be used for miniature medical implants, computer chip circuits, and even in the design of superlight aircraft components.

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