Title

Monofunctional gold nanoparticles: synthesis and applications

Authors

Authors

Q. Huo;J. G. Worden

Comments

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Abbreviated Journal Title

J. Nanopart. Res.

Keywords

monolayer; gold nanoparticles; monofunctional; solid phase synthesis; Brust-Schiffrin reaction; nanoassembling; nanostructure; ENHANCED RAMAN-SCATTERING; MONOLAYER-PROTECTED GOLD; PLACE-EXCHANGE-REACTIONS; PHASE SYNTHESIS APPROACH; SILVER; NANOPARTICLES; SINGLE-MOLECULE; CONTROLLED FUNCTIONALIZATION; CLUSTER; MOLECULES; DNA; NANOCLUSTERS; Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials; Science, Multidisciplinary

Abstract

The ability to control the assembly of nanoparticle building blocks is critically important for the development of new materials and devices. The properties and functions of nanomaterials are not only dependent on the size and properties of individual particles, but also the interparticle distance and interactions. In order to control the structures of nanoassemblies, it is important to first achieve a precise control on the chemical functionality of nanoparticle building blocks. This review discusses three methods that have been reported recently for the preparation of monofunctional gold nanoparticles, i.e., nanoparticles with a single chemical functional group attached to each particle. The advantages and disadvantages of the three methods are discussed and compared. With a single functional group attached to the surface, one can treat such nanoparticles as molecular building blocks to react with other molecules or nanoparticles. In other words, by using appropriate chemical reactions, nanoparticles can be linked together into nanoassemblies and materials by covalent bonds, similar to the total chemical synthesis of complicated organic compounds from smaller molecular units. An example of using this approach for the synthesis of nanoparticle/polymer hybrid materials with optical limiting properties is presented. Other potential applications and advantages of covalent bond-based nanoarchitectures vs. non-covalent interaction-based supramolecular self-assemblies are also discussed briefly in this review.

Journal Title

Journal of Nanoparticle Research

Volume

9

Issue/Number

6

Publication Date

1-1-2007

Document Type

Article

Language

English

First Page

1013

Last Page

1025

WOS Identifier

WOS:000249651400004

ISSN

1388-0764

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