银掺杂提高金纳米簇的光稳定性和荧光强度。
High photostability and enhanced fluorescence of gold nanoclusters by silver doping.
机构信息
Pharmaceutical Nanotechnology, Saarland University, Saarbrücken, Germany.
出版信息
Nanoscale. 2012 Dec 21;4(24):7624-31. doi: 10.1039/c2nr30653k. Epub 2012 Nov 9.
PMID:23142868
Abstract
Gold nanoclusters prepared with a controlled amount of Ag exhibit intense fluorescence with a quantum yield of ~16% and a "quasi-monoexponential" long lifetime of >200 ns. Characterization of the luminescent probes indicates high photostability and easy detection in cells. Additionally, fluorescence enhancement in the presence of proteins was found.
摘要
用一定量的 Ag 制备的金纳米簇表现出强烈的荧光，量子产率约为 16%，长寿命为 >200 ns 的“准单指数”。发光探针的特性表明其具有高的光稳定性和在细胞中易于检测的特点。此外，还发现了在存在蛋白质的情况下荧光增强。
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