Abstract:
In recent years, researchers have replaced some of DNA's natural bases with those that attach to metal atoms in order to coax DNA to organize metal ions into tiny structures. Researchers from the University of Tokyo in Japan have tapped the method to form stacks of single metal ions. The work shows that DNA can be used to precisely position and control arrays of metal. The relatively simple method is a step toward building and controlling tiny metal devices and nanomachines atom by atom.