Nanoprobe

[device] A nanoprobe as existing in the real world is an optical device. It was developed by tapering an optical fiber to a tip measuring 100 nm = 1000 angstroms wide. Also, a very thin coating of silver nanoparticles helps to enhance the Raman scattering effect of the light. (The phenomenon of light reflection from an object when illuminat...
Found on http://en.wikipedia.org/wiki/Nanoprobe_(device)

nanoprobe

A device that uses x-rays instead of visible light to form images of very small structures, such as the insides of blood vessels and cells. It can be used to study processes such as angiogenesis (growth of blood vessels). The term nanoprobe is also used to describe very small particles that can be used in the detection, diagnosis, and treatment of ...
Found on http://www.cancer.gov/dictionary?expand=N
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