Water-soluble fluorescent Ag nanoclusters obtained from multiarm star poly(acrylic acid) as "molecular hydrogel" templates

被引：244

作者：

Shen, Zhong

Duan, Hongwei

Frey, Holger

机构：

[1] Emory Univ, Dept Biomed Engn, Atlanta, GA 30322 USA

[2] Johannes Gutenberg Univ Mainz, Inst Organ Chem, D-55099 Mainz, Germany

来源：

ADVANCED MATERIALS | 2007年 / 19卷 / 03期

关键词：

CLUSTERS;

D O I：

10.1002/adma.200601740

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Water-soluble fluorescent Ag nanoclusters (see figure) are prepared by using star-branched polyglycerol-block-poly(acrylic acid) (PG-b-PAA) templates. The dimensions of the clusters are conveniently controlled by the synthetic conditions. The "cage effect" associated with densely-grafted PAA and the strong binding of protonated acrylic acid groups with Ag+ are two essential factors for the successful formation of the fluorescent nanoclusters, which exhibit remarkable photostability.

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页码：349 / +

页数：5

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