Construction of a DNA Origami Based Molecular Electro-optical Modulator.

Wang, Xiao; Li, Chen; Niu, Dong; Sha, Ruojie; Seeman, Nadrian C; Canary, James W · Nano Lett · 2018

basic_science · Level V

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Abstract

An electro-optical modulator was constructed using a DNA nanostructure scaffold with oligomers of poly(phenylenevinylene) and polyaniline. A molecular device containing one each of the functional molecules was assembled in a DNA origami. The constructs formed an "X" shape and were visualized by atomic force microscopy. In response to redox reconfiguration, the device reversibly altered fluorescence signal output. This molecular self-assembly strategy provides opportunities to make unique material composites that are difficult to achieve by blending. The strategy offers a "plug and play" format that may lead to many new functions.

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