writer：Liping Fang, Yunfeng Li, Zhaolai Chen, Wendong Liu, Junhu Zhang, Siyuan Xiang, Huaizhong Shen, Z
keywords：gold nanoparticle arrays, host?guest interaction, tunable optical properties, hybrid, colloid lithography, polymer brush
source：期刊
specific source：ACS Appl. Mater. Interfaces
Issue time：2014年

The fabrication of versatile gold nanoparticle

(Au NP) arrays with tunable optical properties by a novel

host?guest interaction are presented. The gold nanoparticles

were incorporated into polymer brushes by host?guest

interaction between β-cyclodextrin (β-CD) ligand of gold

nanoparticles and dimethylamino group of poly(2-

(dimethylamino)ethyl methacrylate) (PDMAEMA). The

gold nanoparticle arrays were prepared through the template

of PDMAEMA brush patterns which were fabricated

combining colloidal lithography and surface-initiated atom-

transfer radical polymerization (SI-ATRP). The structure

parameters of gold nanoparticle patterns mediated by polymer

brushes such as height, diameters, periods and distances, could be easily tuned by tailoring the etching time or size of colloidal

spheres in the process of colloidal lithography. The change of optical properties induced by di?erent gold nanoparticle structures

was demonstrated. The direct utilization of PDMAEMA brushes as guest avoids a series of complicated modi?cation process and

the PDMAEMA brushes can be grafted on various substrates, which broaden its applications. The prepared gold naoparticle

arrays are promising in applications of nanosensors, memory storage and surface enhanced spectroscopy.