Journal
CHEMISTRY OF MATERIALS
Volume 19, Issue 1, Pages 6-13Publisher
AMER CHEMICAL SOC
DOI: 10.1021/cm0622912
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Herein we describe the surface modification of gold nanorods via the postpolymerization immobilization of polymers prepared by reversible addition-fragmentation chain transfer (RAFT). Gold nanorods have been synthesized via a three-step seed-mediated process and then subsequently modified with RAFT-preformed poly(2-(dimethylamino)ethyl methacrylate), poly(acrylic acid), and polystyrene homopolymers, with and without the use of reducing agents. Transmission electron microscopy has been used to visually monitor nanorod formations and UV-visible spectroscopy has been used to observe the absorption properties of nanorod formations. Both techniques monitored nanorods with and without surface modifications. This research provides a general and versatile technique for the surface modification of gold nanorods utilizing a wide range of polymers. Polymer modification of nanorods will potentially aid in nanorod self-assembly and ordering processes.
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