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Dye-doped DNA nanofibers can be tuned to emit different colors of light.
Nanocrystals could light the way to using LEDs to replace the lightbulb.
UV-responsive dyes embedded in contact lenses can quickly adapt.
Nanoparticle inks that fade away in hours could be ideal for secure communications.
Technology from Hewlett-Packard could help shoppers find the right color.
Organic crystals change shape and then go back to their original shape when exposed to light of different colors.
A sensor that measures the concentration of viruses in minutes could make possible a handheld device that cheaply and quickly spots pathogens.
A new lighting system uses network cables, instead of electrical wires, to supply power and carry data.
A new optical device could make high-speed computing and communications possible.
A new way of controlling light could open the door to novel optical devices.