Nanotechnology: From nano to micro to macro

By Samir Mehta, MD; Ryan M. Nunley, MD; Alex Jahangir, MD; Alok D. Sharan and the Washington Health Policy Fellows

Nanotechnology is the precision placement, measurement, manipulation, and modeling of matter that consists of 4 to 400 atoms.

To put that in perspective, one nanometer—one billionth of a meter—is 1/75,000 the width of a human hair. This would be the equivalent of comparing a marble with the planet Earth.

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