Fig. 4.

CT through nanoscaled DNA assembly. (a) Schematic representation of CT through nanoscaled DNA assembly based on sticky-end DNAs. Constructed DNA contain three blocks: charge-injection block (red), charge-conductive block (green), and charge-detection block (orange). These blocks are connected by sticky-end DNAs. (b) Sequence of conductive building blocks. (c) Time profiles of the transient absorption of PTZ^•+ monitored at 520 nm during the 355-nm laser flash photolysis of an Ar-saturated solution of NI- and PTZ-modified DNAs at room temperature for DNA1 (green), DNA2 (blue), and DNA3 (cyan), respectively.