Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education MinistryScientific Research Foundation for the Returned Overseas Chinese Scholars; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [30070506, 30771436]
机构署名:
本校为第一且通讯机构
院系归属:
植物保护学院
摘要:
The purpose of this study was to develop a sensitive and low-cost optical sensor for screening pymetrozine using unmodified gold nanoparticles (G NPs). The presence of pymetrozine could rapidly induce the aggregation of G NPs, thereby resulting in red to deep blue colour change. The concentration of pymetrozine was determined with a limit of detection lower than 1×10
-6
M by the naked eye and was further easily monitored by a UV-vis spectrometer. The highest selectivity was achieved in comparison with other 11 pesticides and the possible unde...