Understanding how toxics influence various species is a major research goal in ecotoxicology. Daphnia is a genus of small planktonic crustaceans approximately 0.2–6.0 mm Iength. Along the intestinal wall we can detect uranium nanoparticles (UNPs) in the microvilli. UNPs have penetrated into the epithelial cells and can be seen bound with material left over in the gut lumen.
Recorded on CAMECA NanoSIMS 50L at the Chemical Imaging Infrastructure at Chalmers University of Technology and University of Gothenburg, Sweden. Image courtesy of E. Ranjbari, P. Malmberg, M. Kurczy, I.T Behnke Byrnes and O.C Lind.