Fig. 2

(A) Schematic representation of the edge design of triangular DNA origami for simultaneous detection of two nucleic acid molecules and the corresponding output signal detection. (B) The logic gate symbol corresponding to a two-input AND gate and its truth table. (C) AFM results of output signals after detecting cDNA corresponding to miRNA-155 and miRNA-182, with an enlarged detail of the trimer shown in the upper-right corner. The bar chart illustrates the yields of the trimers and the total assembled structures.