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A modification to existing LEDs based on firefly abdomens can boost the brightness of the light source.
Silicon backing should make high-efficiency lighting more affordable.
Mice tap into their own neural reward circuits with the help of a new optogenetics device.
A startup believes combining LED technology and smart-phone apps will offer precise indoor location data.
In work that could improve solar cells and LEDs, researchers have, for the first time, made practical working devices out of three-dimensional photonic crystals.