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nanosphere
nanosphere n.
Brit. 
/ˈnanə(ʊ)sfɪə/
, /ˈnanə(ʊ)sfɪə/U.S. /ˈnænoʊˌsfɪ(ə)r/
(a) a sphere of material having a diameter measured in nanometres; (b) the world of extremely small things, esp. of nanoscience./ˈnænoʊˌsfɪ(ə)r/ΚΠ
1980 R. L. Hines in Proc. 38th Ann. Meeting Electron Microsc. Soc. Amer. 182 A carbon nanosphere is considered to be an approximately spherical particle of amorphous, nonporus [sic] pure carbon with a radius of several nanometers.
1999 New Scientist 20 Feb. 43/3 The solubility of the outside shell means the nanospheres could be suspended in the bloodstream.
2008 C. Rehmann-Sutter in J. S. Ach & B. Lüttenberg Nanobiotechnol., Nanomed. & Human Enhancem. 28 The AFM [= atomic force microscope]..is helping us to see tiny structures in the nanosphere.
2012 Observer 14 Oct. (New Review section) 22/5 Brown refers to the fly as the latest addition to the entomological ‘nanosphere’, a world of ultra-small insects dominated by trichogrammatid and mymarid wasps.
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