Zheng Jie, Petty Jeffrey T, Dickson Robert M
School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332-0400, USA.
J Am Chem Soc. 2003 Jul 2;125(26):7780-1. doi: 10.1021/ja035473v.
Prepared within biocompatible poly(amidoamine) dendrimer hosts, blue emitting Au8 nanodots were prepared with fluorescence quantum yields more than 100 times larger than any previously prepared. The strong size-dependent blue emission from these from monodisperse Au8 nanodots was measured to be 41% in aqueous solution and 52% in methanol. These easily prepared, water-soluble, and high quantum yield gold nanodots lend insight into the molecular nature of small metal nanoclusters and may find application as novel biocompatible fluorophores.
在生物相容性聚（酰胺胺）树枝状大分子主体中制备的发射蓝光的Au8纳米点，其荧光量子产率比以往制备的任何纳米点都高出100倍以上。这些单分散Au8纳米点强烈的尺寸依赖性蓝光发射在水溶液中的测量值为41%，在甲醇中的测量值为52%。这些易于制备、水溶性且量子产率高的金纳米点有助于深入了解小金属纳米团簇的分子性质，并可能作为新型生物相容性荧光团得到应用。
