低温硬X-射线荧光微探针技术的初探及其在纳米材料环境行为研究中的应用

In foreign countries, there has been developed cryogenic hard X-ray fluorescence microprobe technique to study the sensitive biological and environmental samples in order to obtain their real structural and chemical composition information. In contrast, the beamlines in the domestic synchronous radiation source have not yet developed this technique. This project aims to develop cryogenic hard X-ray fluorescence microprobe technique in hard X-ray micro-focusing beamline (BL15U1) at Shanghai Synchrotron Radiation Facility, and apply this technique to study the environmental behavior of nanomaterials. This will not only fill the technique vacancy, but also meet the domestic users’ need and promote the biological, environmental, health and safety issues of nanomaterials. While the technology is used to study long-term effects of nanomaterials with environmental pollutants, and fill the current gaps in such research. The project will promote the development and application of hard X- ray fluorescence microprobe technique, and will have important academic value and good prospect.

在国外，已有一些同步辐射光源光束线站发展了针对生物和环境样本的低温硬X-射线荧光微探针技术，对敏感的生物样本进行有效地分析，以便得到其真实结构和化学成分的信息。相比之下，国内的同步辐射光源目前还未有针对性地发展该方法。本项目旨在上海光源硬X射线微聚焦及应用光束线站（BL15U1）发展低温硬X-射线荧光微探针技术，并应用于纳米材料环境行为的研究中，不仅可填补国内同类光束线站实验条件的空缺，更可满足国内广大用户研究的需求，促进我国有关纳米材料的生物应用、环境、健康和安全方面的研究；同时将该技术应用于纳米材料与环境污染物的长期效应研究中，填补目前这类研究的空白。本项目的研究对我国同步辐射光源硬X-射线荧光微探针技术的发展及应用具有重要的学术价值及良好的应用前景。