Stable silver isotope fractionation in the natural transformation process of silver nanoparticles

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境化学与生态毒理学国家重点实验室

	Stable silver isotope fractionation in the natural transformation process of silver nanoparticles
	Lu, Dawei; Liu, Qian; Zhang, Tuoya; Cai, Yong; Yin, Yongguang; Jiang, Guibin
刊名	Nature Nanotechnology
	2016-08
卷号	11 期号:8 页码:682-+
英文摘要	Nanoparticles in the environment can form by natural processes or be released due to human activities(1). Owing to limited analytical methods, the behaviour of nanoparticles in the natural environment is poorly understood and until now they have only been described by the variations in the nanoparticle size or the concentration of the element of interest. Here we show that by using inductively coupled plasma mass spectrometry to measure silver (Ag) isotope ratios it is possible to understand the transformation processes of silver nanoparticles (AgNPs) in the environment. We found that the formation and dissolution of AgNPs under natural conditions caused significant variations in the ratio of natural Ag isotopes (Ag-107 and Ag-109) with an isotopic enrichment factor (epsilon) up to 0.86 parts per thousand. Furthermore, we show that engineered AgNPs have distinctly different isotope fractionation effects to their naturally formed counterparts. Further studies will be needed to understand whether isotope analysis can be used to reveal the sources of AgNPs in the environment.
收录类别	SCI
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/35952]
专题	生态环境研究中心_环境化学与生态毒理学国家重点实验室
推荐引用方式 GB/T 7714	Lu, Dawei,Liu, Qian,Zhang, Tuoya,et al. Stable silver isotope fractionation in the natural transformation process of silver nanoparticles[J]. Nature Nanotechnology,2016,11(8):682-+.
APA	Lu, Dawei,Liu, Qian,Zhang, Tuoya,Cai, Yong,Yin, Yongguang,&Jiang, Guibin.(2016).Stable silver isotope fractionation in the natural transformation process of silver nanoparticles.Nature Nanotechnology,11(8),682-+.
MLA	Lu, Dawei,et al."Stable silver isotope fractionation in the natural transformation process of silver nanoparticles".Nature Nanotechnology 11.8(2016):682-+.