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Originally published in Science Express on 15 April 2004
Science 7 May 2004:
Vol. 304. no. 5672, pp. 850 - 852
DOI: 10.1126/science.1095678
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Reports

RNA-Mediated Metal-Metal Bond Formation in the Synthesis of Hexagonal Palladium Nanoparticles

Lina A. Gugliotti, Daniel L. Feldheim,* Bruce E. Eaton*

RNA sequences have been discovered that mediate the growth of hexagonal palladium nanoparticles. In vitro selection techniques were used to evolve an initial library of ~1014 unique RNA sequences through eight cycles of selection to yield several active sequence families. Of the five families, all representative members could form crystalline hexagonal palladium platelets. The palladium particle growth occurred in aqueous solution at ambient temperature, without any endogenous reducing agent, and at low concentrations of metal precursor (100 micromolar). Relative to metal precursor, the RNA concentration was significantly lower (1 micromolar), yet micrometer-size crystalline hexagonal palladium particles were formed rapidly (7.5 to 1 minutes).

Department of Chemistry, North Carolina State University, Raleigh, NC 27695, USA.

* To whom correspondence should be addressed. E-mail: bruce_eaton{at}ncsu.edu (B.E.E.), dan_feldheim{at}ncsu.edu (D.L.F.)

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E-Letters:

Read all E-Letters

E-Letter Concerning Study by Gugliotti et al.
Donovan N. Leonard, et al.
Science Online, 26 Sep 2008 [Full text]
Response to E-Letter Concerning Study by Gugliotti et al.
Lina A. Gugliotti, et al.
Science Online, 26 Sep 2008 [Full text]

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