Full-body synchrotron imaging of roundworms reveals cerium nanoparticle accumulation

CERAD-NMBU scientists together with colleagues at the University of Antwerp, Belgium generated the first synchrotron-based X-ray map of the whole body of a nematode in pristine conditions, at such a high resolution that contaminants could be detected at the individual cell level. The images were taken at the DESY’s PETRA III light source in Hamburg, Germany. The research team was able to identify cerium nanoparticles in the digestive system of the roundworm Caenorhabditis elegans while also determining that the nanoparticles showed relatively low toxicity.

The results were published in the journal Environmental Science and Technology ("Synchrotron XRF Analysis Identifies Cerium Accumulation Colocalized with Pharyngeal Deformities in CeO2 NP-Exposed Caenorhabditis elegans") and covered in Nano Werk news.

Published 3. June 2022 - 12:57 - Updated 3. June 2022 - 14:36