Nonenzymatic parallel DNA logic circuits

(Figure Presented) It's logical. We report the development of a photochemical DNA logic systems that performs the basic logic operations NOT, AND and OR, as well as full-adder. In addition, several logic steps can be simultaneously operated in a single test tube by assigning an address sequence to each logic gate (see figure). This approach is generally applicable to the design of other complicated combinational logic circuits, such as comparator and full-subtractor. © 2007 Wiley-VCH Verlag GmbH & Co. KGaA.