Synthesis of Fluorescent Gold Nanoclusters Directed by Bovine Serum Albumin and Application for Nitrite Detection

文献类型: 外文期刊

第一作者: Yue, Qiaoli

作者: Yue, Qiaoli;Sun, Lijun;Shen, Tongfei;Liu, Jifeng;Gu, Xiaohong;Zhang, Shuqiu

作者机构:

关键词: Nitrite;Gold nanocluster;Bovine serum albumin;Water samples

期刊名称:JOURNAL OF FLUORESCENCE ( 影响因子:2.217; 五年影响因子:1.906 )

ISSN: 1053-0509

年卷期: 2013 年 23 卷 6 期

页码:

收录情况: SCI

摘要: In the present work, gold nanocluster (GNC) induced by bovine serum albumin (BSA) was synthesized as a novel fluorescence probe to detect nitrite (NO2 (-)) sensitively and selectively. The fluorescence of GNC was found to be quenched effectively by NO2 (-). Under the optimum conditions, it was found that the change of fluorescence intensity was proportional with the concentration of NO2 (-) in the linear range of 0.1-50 mu M (R = 0.9990), with a detection limit (S/N = 3) of 30 nM. The absorption spectroscopy, circular dichroism (CD), and X-ray photoelectron spectroscopy (XPS) studies were employed to discuss the quenching mechanism. In addition, the present approach was successfully applied in real water samples.

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