The electronic nose is an array of nano-scale gas sensors--the maximized surface area of the nano-particles allows the most gas to pass over them--along with pattern recognition technology that can create a digital fingerprint (or noseprint, as the case may be) of specific smells.

FORBES: Magazine Article

So, in order to go deeper and get a more close-up view of the larvae's internals, the team's currently exploring new methods of fabricating these "nano-suits" using an array of chemicals.

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Rather, it refers to the process of dealing with materials and matter on a nano or molecular scale and, as such, cuts across an array of industries and scientific disciplines.

FORBES: Blue Chips Stack Up On Nanotechnology