Bright far-red/near-infrared gold nanoclusters for highly selective and ultra-sensitive detection of Hg
Zhang Yan
Jiang Jingjing
Li Min
Gao Pengfei
Shi Lihong
Zhang Guomei
Dong Chuan
Shuang Shaomin
· 2017
期刊名称：
Sensors and Actuators, B: Chemical
2017 年
238 卷
摘要：
In this paper, we developed a simple one-pot method, employing inexpensive chicken egg white (EW) as a reducing/capping reagent, for microwave-assisted synthesis of water-soluble and well-dispersed chicken egg white-protected gold nanoclusters (EW@AuNCs) with far-red/near-infrared (FR/NIR) emission. The resultant AuNCs showed strong emission at 667??nm with a quantum yield of 7.23%. The excellent photostability, large Stokes shift (>350??nm), microsecond-scale lifetime and strong emission endowed EW@AuNCs potential as a sensing probe. The photoluminescence of EW@AuNCs could be quenched upon addition of either Hg
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