NANO ECLIPSE
This fiery ring is actually a layer of iron oxide on a 500-nm-wide silicate particle. Researchers at the University of Texas, Dallas, created this image while using transmission electron microscopy to look at the distribution of iron oxide inside the nanoshell; brighter colors in the image represent higher concentrations. The nanoshells are being developed as a contrast agent for real-time Doppler imaging of tumors during surgery (Adv. Funct. Mater. 2015, DOI: 10.1002/adfm.201500610). This image won a 2015 scientific image contest put on by JEOL, an imaging and spectroscopic instrument maker.
Credit: Moon Kim/Ning Lu/University of Texas, Dallas/Andrew Kummel/UC San Diego
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