Nanoscale: Robot Arm Places Atoms and Molecules With 100% Accuracy

Until the mid-1990s, the term "nanotechnology" referred to the goal of creating vast arrays of nanoscale assemblers to fabricate useful human-scale products from scratch in an entirely automated process and with atomic precision. Since then, the word has come to mean anything from stain-resistant pants to branches of conventional chemistry — generally anything involving nanoscale objects. But the dream of a new Industrial Revolution based on nanoscale manufacturing has not died, as demonstrated most vividly by the work of NYU professor of chemistry Dr. Nadrian Seeman.

In a 2009 article in Nature Nanotechnology, Dr. Seeman shared the results of experiments performed by his lab, along with collaborators at Nanjing University in China, in which scientists built a two-armed nanorobotic device with the ability to place specific atoms and molecules where scientists want them. The device was approximately 150 x 50 x 8 nanometers in size — over a million could fit in a single red blood cell. Using robust error-correction mechanisms, the device can place DNA molecules with 100% accuracy. Earlier trials had yielded only 60-80% accuracy.

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Comment: Ah, great.