Analytical Sciences
Online ISSN : 1348-2246
Print ISSN : 0910-6340
ISSN-L : 0910-6340
Reviews
Facile Method for Constructing Metallic Nanoarrays on a Solid Surface
Hidenobu NAKAO
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JOURNAL FREE ACCESS

2009 Volume 25 Issue 12 Pages 1387-1396

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Abstract

This review highlights work using the author's method to construct metallic nanoarrays. This method is a DNA-templated assembly, to assemble metal nanoparticles (MNPs) in which DNA molecules are initially stretched and aligned on surfaces. Simple interface (air-liquid) moving and surface coating with polymers containing π-conjugation units, lead to the controlled formation of one-dimensional (1D) nanoarrays of DNA without special equipment. The assembly of MNPs onto DNA can be driven by electrostatic binding of newly prepared gold nanoparticles with positive charges, leading the formation of 1D metallic nanoarrays. Dark-field microscopy observations indicate that MNPs on DNA are uniaxially aligned. Finally, the fabrication and patterning of metallic nanoarrays achieved with DNA nanofibers and transfer printing techniques are discussed.

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© 2009 by The Japan Society for Analytical Chemistry
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