Surface modification of gold nanorods with polymers synthesized by reversible addition-fragmentation chain transfer polymerization

被引：94

作者：

Hotchkiss, Jay W.

Lowe, Andrew B.

Boyes, Stephen G. ^{[1
]}

机构：

[1] Colorado Sch Mines, Dept Chem & Geochem, Golden, CO 80401 USA

[2] Univ So Mississippi, Dept Chem & Biochem, Hattiesburg, MS 39406 USA

来源：

CHEMISTRY OF MATERIALS | 2007年 / 19卷 / 01期

关键词：

D O I：

10.1021/cm0622912

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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.

引用

页码：6 / 13

页数：8

共 44 条

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