Journal
ADVANCED MATERIALS
Volume 17, Issue 17, Pages 2066-+Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.200402004
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Sterically mediated aggregation of gold nanoparticles: 13 nm gold nanoparticles can be arrenged in a hexagonal, square, tirgonal, or linear manner (see figure) in two-dimensional (2D) aggregates linked by phosphorothiote oligo-DNA (PS oligo-DNA) of different lengths . The steric effect induced by the parallel orientation of the PS oligo-DNA helix on the particle surface is identified to be of vital importance in controlling the 2D architecture of the particles in the aggregates.
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