This picture shows a zebrafish embryo 48 hours after fertilization. At this developmental stage, the embryo is only about 2 mm long and 350 μm thick. The 3-D model is derived from X-ray CT scans collected with a nanoCT instrument developed by Prof. Franz Pfeiffer (Chair of Applied Biophysics, Technical University of Munich) and his colleagues, which can attain a resolution of 100 nm.
S. Ferstl, B. Metscher, M. Müller, S. Allner, M. Dierolf, M. Busse, K. Achterhold, B. Gleich and F. Pfeiffer
Microscopy and Microanalysis 24, Supplement S2 Proceedings of the 14th International Conference on X-ray Microscopy (XRM2018) (2018)