Ok, this may challenge this Mac group...

I understand that gold nanoparticles are different colors depending on the size of the nanoparticle. I'm trying to understand why this occurs in terms I can understand. I've run across terms such as, "surface plasmon oscillation," etc.--these make my eyes glaze over.

Anybody have an easy-to-understand explanation?

Thanks.

Michael Wrote:
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> I've run across terms such as,
> "surface plasmon oscillation," etc.--these make my
> eyes glaze over.


"surface plasmon oscillation" - until now, I've never run across such a term! LOL. And I'm with ya on the eyes glazing over thing.

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*´¨)
¸.·´¸.·*´¨) ¸.·*¨)
(¸.·´ (¸.·´How about if you greased them up first? Are chihuahua's cooperative pack hunters? ~TheCaber

This seems to privide a pretty decent explanation:
[www.physorg.com]

Chocolate is a dark, dark, orange.

(Just thought I'd throw that in)

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probably something to do with the various wavelengths of light not ahving enough room to get reflected back. The longer ones aren't hitting the surface so those colors are gone.

MacMagus Wrote:
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> This seems to privide a pretty decent
> explanation:
>

Thanks-that's helpful!