A team of University of Glasgow researchers has worked to improve the imaging provided by swallowable cameras used to detect cancers in the throat and gut. The new video pills are able to emit fluorescent light, allowing the researchers to better analyze the returned imagery.
Phosphors are essential to fluorescent lighting, and thus office parks the world over, but their use of rare-earth elements makes them less than ideal. To address that issue, new types of phosphors have been developed that use substantially less rare-earth elements than current phosphors found in fluorescent bulbs. This could reduce the reliance on the limited supplies of rare-earth elements until fluorescent lighting can be completely replaced by LED lighting, which isn't expected to occur for over a decade.