Abstract

The topics focusing on functionalization of gold nanorods have been reviewed with a view toward their advanced uses. In most cases, as-prepared gold nanorods are hydrophilic and protected by surfactants, since anisotropic growth of gold nanorods by chemical, electrochemical, and photo-induced methods is carried out in aqueous media in the presence of surfactants and additives. Since solvophilicity of gold nanorods predominantly affects on their optical properties, the control of dispersity of gold nanorods in matrices has been performed, without loss of their optical characters, by surface modification and hybridization with small molecules or polymers. As a result of the functionalization procedure, the capability of self-assembly of gold nanorods has been improved. Furthermore, the examples of application using gold nanorods demonstrate that gold nanorod is a promising material.

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