DNA
DNA repair has been captured in a step-by-step molecular movie
Researchers now know how a light-powered DNA repair system works Alexey Kotelnikov/Alamy Two teams of researchers have uncovered microscopic details of how a protein called photolyase uses light to repair DNA. The discovery could help develop sustainable technologies for chemical manufacture that rely on sunlight. Most organisms, except many mammals, have photolyase. These proteins repair…
DNA nanobots can exponentially self-replicate
DNA can be used to make nanomachines Kiyoshi Takahase Segundo/Alamy Nanoscale “robots” made of DNA that rapidly self-replicate could be harnessed to manufacture drugs or other chemicals inside the body, say researchers. Feng Zhou at New York University and his colleagues created the tiny machines, which are just 100 nanometres across, using four strands of…