Scientists have created what they say is the world's first "living laser" capable of producing a laser beam, which could one day be used to activate drugs inside the human body. Researchers at the Wellman Centre for Photomedicine at Massachusetts General Hospital in the US used a cell from a human kidney and genetically engineered it to produce light in the same way as a jellyfish and flooded it with blue light.This caused a green laser to be beamed out of the other end that was visible to the human eye, the Daily Mail reported. According to the researchers, in future, these "living lasers" could be produced inside live animals which would give unprecedented detail on scanners. Scientists develop world's first 'living laser' - Hindustan Times
