A new radiolabeling method for commercial Ag0 nanopowder with 110mAg for sensitive nanoparticle detection in complex media
Source abstract
Abstract
Nanoparticle (NP) tracking in complex media is still a challenge since NP concentrations are expected to be low compared to elemental background levels as it can be found in environmental matrices. This study presents a new method for radiolabeling of commercial silver nanopowder (Ag0-NPs, dp < 100 nm) with 110mAg radionuclides (t 1/2 = 249.9 days) that provide an adequate time frame for particle detection, localization, and tracking under various experimental conditions. The radiolabeling procedure insures high efficiency, stability, and consistency of important particle properties such as size and morphology. Detection of Ag0-NP in concentrations as low as 125 ng kg−1 could be reached. For the first time, an appropriate tool for life-cycle studies of commercial Ag0-NPs is provided without changing chemical composition of the material. This is of great importance e.g., for research in the field of nanotoxicology.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Nanoparticles: synthesis and applications · Electrochemical Analysis and Applications · Recycling and Waste Management Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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