Nano Manufacturing: Banknotes From Butterflies

By Amelia Hennighausen - 2013-09-23T13:23:07Z

Photograph by Grant Harder for

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Etch with Gas

A nanofabrication engineer prepares to etch material, using ionic gases. This enables nano-technology that is 1,500 times thinner than a human hair and is the first of its kind used to create anti-counterfeiting security features.