Template protection of gold nanoclusters for the detection of organophosphorus pesticides
作者： Huan Li , Hongyu Chen , Mingxia Li , Qiujun Lu , Youyu Zhang
DOI: 10.1039/C9NJ01007F
关键词: Trypsin 、 Bovine serum albumin 、 Nanoclusters 、 Trypsin Digestion 、 Quenching (fluorescence) 、 Fluorescence 、 Chemistry 、 Detection limit 、 Organophosphorus pesticides 、 Chromatography
摘要: The simple and highly sensitive detection of organophosphorus pesticides (OPs) is urgently required. Here, we have developed a sensing method for OPs based on the trypsin digestion template bovine serum albumin-stabilized gold nanoclusters (BSA-AuNCs), thus leading to BSA-AuNC aggregation quenching their fluorescence. While activity was irreversibly inhibited in presence OPs, fluorescence efficiency BSA-AuNCs decreased. Under optimal conditions, logarithm concentration proportional inhibition range 0.1 ng mL−1 5 μg mL−1. limit reached 0.037 What's more, successfully utilized real food samples. These results indicated that sensor has potential applications safety monitoring agricultural
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