Figure 5: Logic behaviors of dye-labeled [3]pseudocatenane at four input modes.
From: Interlocked DNA nanostructures controlled by a reversible logic circuit
Fluorescence intensity of (a) RG-BHQ1 FQ system and (b) Cy3-Cy5 FRET system was recorded at 534 nm (FI534) and 663 nm (FI663), respectively. The normalized FI534 and FI663 serve as outputs (1/0) with a threshold of 0.6, consistent with two-input ID and AND logic gates, respectively. Insets: corresponding truth tables (corresponding fluorescence spectra: Supplementary Fig. 5). (c) Logic circuit that consists of the two tandem gates. Here a one-input YES gate equivalent to the two-input ID gate is adopted. (d) Reversibility of the logic circuit in several working cycles measured by fluorescence.
