Water Drop Holds a Trillion Computers

November 21, 2002 | Source: November 22, 2001

Researchers have built a machine that solves mathematical problems using DNA as software and enzymes as hardware. A trillion such biomolecular machines – working at more than 99.8% accuracy – can fit into a drop of water. Computers with DNA input and output have been made before, but they involved a laborious series of reactions, each needing human supervision. The new automaton requires only the right molecular mix.