Nanorobot molecules to repair our cells

We told you in March about the DNA nanotubes against cancer, developed at McGill University in Montreal. This time the American researchers have developed robotic molecules capable of modifying DNA to repair damaged or flawed tissues, like small robotic spiders. The robot measures 4 nanometers in diameter (4 billionths of a meter). Its body is a tetramer protein of 52 800 Da called streptavidin. It has four legs, three of which act on the DNA and one to tether the robot to its start site. Milan Stojanovic is the researcher who led the project at Columbia University in New York. The work has just been published in the British journal, Nature. via physorg