In a fantastic collaboration co-led by Ana Diaz (@psich.bsky.social), Carles Bosch @carlesbosch.bsky.social) and Andreas Schaefer (@andreas-t-schaefer.bsky.social) from @crick.ac.uk,we tackled a key barrier in X-ray ultrastructural imaging: achieving <40 nm resolution without destroying tissue.

By repurposing a radiation-hard epoxy resin from the nuclear/aerospace industry, we made samples withstand >1.15×10¹⁰ Gy and reached sub-40 nm resolution, revealing axons, dendrites, mitochondria and synapses without sectioning.