中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Catalysis-reduction strategy for sensing inorganic and organic mercury based on gold nanoparticles

文献类型:期刊论文

作者Li, X. K.; Y. L. Zhang; Y. L. Chang; B. Xue; X. G. Kong and W. Chen
刊名Biosensors & Bioelectronics
出版日期2017
卷号92
英文摘要In view of the high biotoxicity and trace concentration of mercury (Hg) in environmental water, developing simple, ultra-sensitive and highly selective method capable of simultaneous determination of various Hg species has attracted wide attention. Here, we present a novel catalysis-reduction strategy for sensing inorganic and organic mercury in aqueous solution through the cooperative effect of AuNP-catalyzed properties and the formation of gold amalgam. For the first time, a new AuNP-catalyzed-organic reaction has been discovered and directly used for sensing Hg2+, Hg-2(2+) and CH3Hg+ according to the change of the amount of the catalytic product induced by the deposition of Hg atoms on the surface of AuNPs. The detection limit of Hg species is 5.0 pM (1 ppt), which is 3 orders of magnitude lower than the U.S. Environmental Protection Agency (EPA) limit value of Hg for drinking water (2 ppb). The high selectivity can be exceptionally achieved by the specific formation of gold amalgam. Moreover, the application for detecting tap water samples further demonstrates that this AuNP-based assay can be an excellent method used for sensing mercury at very low content in the environment.
语种英语
源URL[http://ir.ciomp.ac.cn/handle/181722/59023]  
专题长春光学精密机械与物理研究所_中科院长春光机所知识产出
推荐引用方式
GB/T 7714
Li, X. K.,Y. L. Zhang,Y. L. Chang,et al. Catalysis-reduction strategy for sensing inorganic and organic mercury based on gold nanoparticles[J]. Biosensors & Bioelectronics,2017,92.
APA Li, X. K.,Y. L. Zhang,Y. L. Chang,B. Xue,&X. G. Kong and W. Chen.(2017).Catalysis-reduction strategy for sensing inorganic and organic mercury based on gold nanoparticles.Biosensors & Bioelectronics,92.
MLA Li, X. K.,et al."Catalysis-reduction strategy for sensing inorganic and organic mercury based on gold nanoparticles".Biosensors & Bioelectronics 92(2017).

入库方式: OAI收割

来源:长春光学精密机械与物理研究所

浏览0
下载0
收藏0
其他版本

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。