DNA lights

By adding fluorescent dyes to DNA and then spinning the DNA strands into nanofibers, researchers at the University of Connecticut have made a new material that emits bright white light. The material absorbs energy from ultraviolet light and gives off different colors of light--from blue to orange to white--depending on the proportions of dye it contains. They are even able to fine-tune the white color tone to make it warm or cold. The new material could be used to make a novel type of organic light bulb.

link