Salt-triggered Active Plasmonic Systems Based on the Assembly/Disassembly of Gold Nanorods in a DNA Brush Layer on a Solid Substrate
- 5 July 2020
- journal article
- research article
- Published by Oxford University Press (OUP) in Chemistry Letters
- Vol. 49 (7), 749-752
- https://doi.org/10.1246/cl.200185
Abstract
In this study, we demonstrate that the plasmonic properties of gold nanorods (GNRs) electrostatically adsorbed on a DNA brush substrate are reversibly controlled by changes in NaCl concentration. This plasmonic change results from GNR assembly/disassembly in a DNA brush layer. In addition, we show that this active plasmonic system exhibits intense and switchable chiroptical properties.Keywords
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