Silver flashes red, yellow, and green
Tiny grains of silver glow in different colors depending on their size.
Emory, S.R., W.E. Haskins, and S. Nie. 1998. Direct observation of size-dependent optical enhancement in single metal nanoparticles. Journal of the American Chemical Society 120(Aug. 12):8009.
Nie, S., and S.R. Emory. 1997. Probing single molecules and single nanoparticles by surface-enhanced Raman scattering. Science 275(Feb. 21):1102.
Department of Chemistry
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From Science News, Vol. 154, No. 14, October 3, 1998,
Copyright Ó 1998 by Science Service.
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