文献类型： 外文期刊
第一作者： Wang, Miao
作者： Wang, Miao;Li, Minmin;Lu, Jia;Fan, Bei;He, Yan;Huang, Yatao;Wang, Fengzhong;Wang, Miao;Li, Minmin;Lu, Jia;Fan, Bei;He, Yan;Huang, Yatao;Wang, Fengzhong;Wang, Fengzhong
作者机构：
期刊名称：RSC ADVANCES （ 影响因子：3.361； 五年影响因子：3.39 ）
ISSN： 2046-2069
年卷期： 2018 年 8 卷 21 期
页码：
收录情况： SCI
摘要： Herein, we report novel off-on fluorescent sensing of organophosphate pesticides using a carbon dot (CD)-Au(iii) complex/acetylcholinesterase (AChE) system. The above sensor utilizes the quenching of CD fluorescence by Au(iii) and its subsequent recovery by thiocholine, which is generated by AChE-catalyzed hydrolysis of acetylthiocholine (ATCh) and effectively scavenges Au(iii). In the presence of organophosphates, the catalytic activity of AChE is inhibited, allowing these species to be quantified based on the decreased recovery of CD fluorescence intensity. The developed sensor was used to analyze a real pesticide-spiked sample (4.48 mu M), achieving a recovery of 99.85% and exhibiting a linear response range of 0.45-44.80 mu M.
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