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DNA-Directed Assembly of Anisotropic Nanoparticles on Lithographically Defined Surfaces and in Solution

Published online by Cambridge University Press:  17 March 2011

Brian D. Reiss ,
Jeremiah N. K. Mbindyo ,
Benjamin R. Martin ,
Sheila R. Nicewarner ,
Thomas E. Mallouk ,
Michael J. Natan  and
Christine D. Keating
Brian D. Reiss
Affiliation:
Department of Chemistry, The Pennsylvania State University, University Park, PA 16802, USA
Jeremiah N. K. Mbindyo
Affiliation:
Department of Chemistry, The Pennsylvania State University, University Park, PA 16802, USA
Benjamin R. Martin
Affiliation:
Department of Chemistry, The Pennsylvania State University, University Park, PA 16802, USA
Sheila R. Nicewarner
Affiliation:
Department of Chemistry, The Pennsylvania State University, University Park, PA 16802, USA
Thomas E. Mallouk
Affiliation:
Department of Chemistry, The Pennsylvania State University, University Park, PA 16802, USA
Michael J. Natan
Affiliation:
Department of Chemistry, The Pennsylvania State University, University Park, PA 16802, USA
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Abstract

Anisotropic, noble metal nanoparticles have been synthesized using a template synthesis strategy. In short, metallic salts are reduced in the nanometer scale pores of either an alumina or polycarbonate membrane. The particles can then been released from the template to form suspensions of anisotropic nanoparticles. These nanoparticles have been modified with deoxyribonucleic acid (DNA) oligomers of varying length using several different attachment chemistries. The thermodynamics and kinetics of modifying these particles with DNA has been explored. DNA has also been used to assemble the particles on planar Au surfaces as well as lithographically defined Au pads on Si wafers. In addition to surface assembly, DNA has been used to assemble the nanowires into simple, yet deterministic structures in solution.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 635: Symposium C – Anisotropic Nanoparticles-Synthesis, Characterization & Applications , 2001 , C6.2
Copyright
Copyright © Materials Research Society 2001

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