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A nanoshell is composed of a spherical core of a particular compound surrounded by a shell of a few nanometer in thickness. In Europe it is also referred to as "core-shell."
Additional recommended knowledge
One of the promising applications concerns the biological field. Research is being performed to create nanoshells with high absorptions at biologically useful wavelengths by altering the thickness of the shells. Particularly, the Near Infra Red region, which corresponds with low absorption by tissue, may be useful.
In the literature, special attention is given to gold nanoshell with a dielectric core (gold sulfide,silicon dioxide,...). Gold is a biocompatible compound, making it a useful material for medical applications.
Nanoshells are currently being investigated as:
Nanoshells featured in the fictional Alex Rider book Scorpia, where they were filled with cyanide to kill thousands.
See for example: H. S. Zhou, I. Honma, H. Komiyama, J. W. Haus, Phys. Rev. B, 50, 12 052, 1994
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Nanoshell". A list of authors is available in Wikipedia.|