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Rapid, sensitive and selective detection of pymetrozine using gold nanoparticles as colourimetric probes

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成果类型:
期刊论文
作者:
Bai, Lian-Yang*;Zhang, Yu-Ping;Chen, Jun;Zhou, Xiao-Mao;Hu, Lin-Feng
通讯作者:
Bai, Lian-Yang
作者机构:
[Chen, Jun; Bai, Lian-Yang; Zhou, Xiao-Mao] Hunan Agr Univ, Pesticide Res Inst, Changsha 410128, Hunan, Peoples R China.
[Hu, Lin-Feng; Chen, Jun; Zhang, Yu-Ping] Henan Inst Sci & Technol, Xinxiang 453003, Peoples R China.
通讯机构:
[Bai, Lian-Yang] H
Hunan Agr Univ, Pesticide Res Inst, Changsha 410128, Hunan, Peoples R China.
语种:
英文
期刊:
Micro & Nano Letters
ISSN:
1750-0443
年:
2010
卷:
5
期:
5
页码:
304-308
基金类别:
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...

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