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"Shape-controlled synthesis of gold
and silver nanoparticles," by
Yugang Sun and Younan Xia, Science,
298(5601): 2176-9, 13 December 2002.
[Authors' affiliation: University of
Washington, Seattle]
Abstract: "Monodisperse samples of silver nanocubes were
synthesized in large quantities by reducing silver nitrate
with ethylene glycol in the presence of poly(vinyl pyrrolidone) (PVP). These
cubes were single crystals and were
characterized by a slightly truncated shape bounded by {100}, {110}, and {111}
facets. The presence of PVP and
its molar ratio (in terms of repeating unit) relative to silver nitrate both
played important roles in determining the geometric shape and size of the
product. The silver cubes could serve as sacrificial templates to generate
single-crystalline nanoboxes of gold: hollow polyhedra bounded by six {100}
and eight {111} facets. Controlling the size, shape, and structure of metal
nanoparticles is technologically important because of the strong correlation
between these parameters and optical, electrical, and catalytic
properties."
This 2002 report from Science was cited 21
times in current journal articles indexed in the Thomson Scientific database
during May-June 2004. Repeating its performance from the previous count for
March-April, this report currently stands as the second-most-cited chemistry
paper published in the last two years, aside from reviews. Prior to the most
recent bimonthly count, citations to the paper have accrued as follows:
March-April 2004: 22 citations
January-February 2004: 15
November-December 2003: 11
September-October 2003: 18
July-August 2003: 4
May-June 2003: 5
March-April 2003: 2
November-December 2002: 1
Total citations to date: 99
SOURCE: Hot
Papers Database (Included with a subscription to the ISI print newsletter Science
Watch®, available from the ISI
Research Services Group. Packaged on a CD-ROM that is mailed with each Science
Watch issue, the Hot
Papers Database contains data on hundreds of highly cited papers published
during the last two years. User interface permits searching by author,
organization, journal, field, and more. Total citations, as well as citations
accrued during successive bimonthly periods, can be assessed and graphed. An
updated CD containing the most recent bimonthly data is mailed with every new
issue of Science
Watch,
six times a year. The CD also includes an electronic version of the Science
Watch
issue in HTML format, for personal desktop access.)
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