Water-soluble fluorescent Ag nanoclusters obtained from multiarm star poly(acrylic acid) as "molecular hydrogel" templates
Water-soluble fluorescent Ag nanoclusters obtained from multiarm star poly(acrylic acid) as "molecular hydrogel" templates
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DOI：
10.1002/adma.200601740
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发表时间：
2007-02-05
影响因子：
29.4
通讯作者：
Frey, Holger
中科院分区：
文献类型：
--
作者：
Shen, Zhong;Duan, Hongwei;Frey, Holger
利用星形支化聚甘油-嵌段-聚丙烯酸（PG-b-PAA）模板制备了水溶性荧光Ag纳米团簇（见图）。簇合物的尺寸可通过合成条件方便地控制。与密集接枝PAA相关的“笼效应”和质子化丙烯酸基团与Ag+的强结合是成功形成具有显著光稳定性的荧光纳米团簇的两个重要因素。
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.