| Literature DB >> 23852130 |
Qiaoli Yue1, Lijun Sun, Tongfei Shen, Xiaohong Gu, Shuqiu Zhang, Jifeng Liu.
Abstract
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 μM (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.Entities:
Mesh：
Substances：
Year: 2013 PMID： 23852130 DOI： 10.1007/s10895-013-1265-z
Source DB: PubMed Journal: J Fluoresc ISSN： 1053-0509 Impact factor: 2.217