Issue 44, 2015

One-pot synthesis of long twin gold nanorods in a gelled surfactant solution

Abstract

A new one-pot synthesis method was developed for producing long twin gold nanorods with lengths of ca. 1755 nm, which have the potential to be arranged on a substrate using anisotropic surface modification. This method was achieved by using citrate-stabilized seeds in a gelled surfactant solution, i.e., in the mixture of hexadecyltrimethylammonium bromide and octadecyltrimethylammonium bromide at low temperature (20 °C). The yield (ca. 60%) of this method is relatively high. The mechanism of the present growth conditions was compared with those reported in previous studies. As expected, NO3 had an influence on the length of the gold nanorods and the longest ones were obtained at an optimal concentration of NO3, even for growth in the gelled surfactant solution. In contrast, the number of seeds in the growth solution had no effect on the lengths of the nanorod grown in the gelled surfactant.

Graphical abstract: One-pot synthesis of long twin gold nanorods in a gelled surfactant solution

Supplementary files

Article information

Article type
Paper
Submitted
25 Dec 2014
Accepted
07 Apr 2015
First published
07 Apr 2015

RSC Adv., 2015,5, 34690-34695

Author version available

One-pot synthesis of long twin gold nanorods in a gelled surfactant solution

Y. Takenaka, RSC Adv., 2015, 5, 34690 DOI: 10.1039/C4RA17031H

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