Investigation of the environmental impact of nanoparticles using smart radiolabeling


Investigation of the environmental impact of nanoparticles using smart radiolabeling

Schymura, S.; Fricke, T.; Hildebrand, H.; Steudtner, R.; Hübner, R.; Mansel, A.; Franke, K.

The investigation of the environmental impact of nanoparticles is greatly hindered by a lack of suitable detection methods, especially at the low, environmentally relevant concentrations. The radiolabeling of nanoparticles can overcome these setbacks and provides a possibility of detecting nanoparticles at minimal concentrations against high elemental and particle backgrounds.
In addition to that the sophisticated use of different labeling strategies allows the direct measurement of processes such as dissolution and their relevant in, for example, plant uptake. Using different labeling stragies we produce radiolabeled CeO2 nanoparticles with different radioactivity release kinetics upon dissolution. This enabled us to measure the uptake and translocation of CeO2 nanoparticles in plants and to identify the predominant uptake pathway in the form of particles, as opposed to an uptake of their dissolved remains.

Keywords: Radiomarkierung; radiolabeling; Nanopartikel; nanoparticles; Umwelt; environment; Pflanzen; plants

  • Lecture (Conference)
    13th Cycleur – European Network of Cyclotron Research Centers – Workshop, 23.-24.11.2017, Lissabon, Portugal

Permalink: https://www.hzdr.de/publications/Publ-26360
Publ.-Id: 26360