Synthesis of Fluorescent Gold Nanoclusters Directed by Bovine Serum Albumin and Application for Nitrite Detection
文献类型： 外文期刊
作者： Yue, Qiaoli 1 ; Sun, Lijun 1 ; Shen, Tongfei 1 ; Gu, Xiaohong 2 ; Zhang, Shuqiu 2 ; Liu, Jifeng 1 ;
作者机构： 1.Liaocheng Univ, Dept Chem, Liaocheng 252059, Peoples R China
2.Shandong Acad Agr Sci, Shandong Prov Key Lab Test Technol Food Qual & Sa, Jinan 250100, Peoples R China
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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