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Structured Aggregates of Variously Sized Gold Nanoparticles

Transmission electron micrographs of structured aggregates of gold nanoparticles of different sizes. Shown are symmetric spherical aggregates with gold nanoparticles of (A) 60 and 15 nm; (B) 50 and 10 nm; and (C,D) 60, 15, and 5 nm. The gold nanoparticles were aggregated through the linkage of synthetic oligonucleotides that were functionalized onto their surfaces. Images were collected using the Philips/FEI CM200 transmission electron microscope (TEM) in the Beckman Microscopy Suite.

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Uploaded Sun Sep 5 18:11:51 2010 by Scott Jay Robinson

Updated Sun Sep 5 18:41:17 2010 by Daniel E. Weber