Chiroplasmonic DNA-based nanostructures

Alessandro Cecconello, Lucas V. Besteiro, Alexander O. Govorov, Itamar Willner*

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

120 Scopus citations

Abstract

Chiroplasmonic properties of nanoparticles, organized using DNA-based nanostructures, have attracted both theoretical and experimental interest. Theory suggests that the circular dichroism spectra accompanying chiroplasmonic nanoparticle assemblies are controlled by the sizes, shapes, geometries and interparticle distances of the nanoparticles. In this Review, we present different methods to assemble chiroplasmonic nanoparticle or nanorod systems using DNA scaffolds, and we discuss the operations of dynamically reconfigurable chiroplasmonic nanostructures. The chiroplasmonic properties of the different systems are characterized by circular dichroism and further supported by high-resolution transmission electron microscopy or cryo-transmission electron microscopy imaging and theoretical modelling. We also outline the applications of chiroplasmonic assemblies, including their use as DNA-sensing platforms and as functional systems for information processing and storage. Finally, future perspectives in applying chiroplasmonic nanoparticles as waveguides for selective information transfer and their use as ensembles for chiroselective synthesis are discussed. Specifically, we highlight the upscaling of the systems to device-like configurations.

Original languageEnglish
Article number17039
JournalNature Reviews Materials
Volume2
DOIs
StatePublished - 20 Jul 2017

Bibliographical note

Publisher Copyright:
© 2017 Macmillan Publishers Limited, part of Springer Nature.

Fingerprint

Dive into the research topics of 'Chiroplasmonic DNA-based nanostructures'. Together they form a unique fingerprint.

Cite this