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Programming surface-enhanced raman scattering of DNA Origami-templated metamolecules

DNA origami holds an unprecedented capability on assembling metallic nanoparticles into designer plasmonic metamolecules of emerging properties, including surface-enhanced Raman scattering (SERS). SERS metamolecules were produced by positioning nanoparticles in close proximity to each other on a DNA...

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Bibliographic Details
Main Authors: Zhou, Chunyang (Author) , Liu, Na (Author)
Format: Article (Journal)
Language:English
Published: April 14, 2020
In: Nano letters
Year: 2020, Volume: 20, Issue: 5, Pages: 3155-3159
ISSN:1530-6992
DOI:10.1021/acs.nanolett.9b05161
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1021/acs.nanolett.9b05161
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Author Notes:Chunyang Zhou, Yanjun Yang, Haofei Li, Fei Gao, Chunyuan Song, Donglei Yang, Fan Xu, Na Liu, Yonggang Ke, Shao Su, and Pengfei Wang
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Summary:DNA origami holds an unprecedented capability on assembling metallic nanoparticles into designer plasmonic metamolecules of emerging properties, including surface-enhanced Raman scattering (SERS). SERS metamolecules were produced by positioning nanoparticles in close proximity to each other on a DNA origami template for Raman enhancement. In earlier reports, SERS metamolecules were generally assembled into clusters containing small number of nanoparticles (2, 3, or 4) and thus had limited programmability over SERS. Herein, we expanded the structural complexity of SERS metamolecules by increasing the number of nanoparticles and by arranging them into sophisticated configurations. DNA origami hexagon tile was used as the assembling template to fabricate clusters consisting of 6, 7, 12, 18, and 30+ metallic nanoparticles. Programmable SERS was realized via controlling the size, number, or spatial arrangement of nanoparticles. We believe this method offers a general platform for fabricating sophisticated nanodevices with programmable SERS that may be applied to a variety of fields including plasmonics, nanophotonics, and sensing.
Item Description:Gesehen am 17.08.2020
Physical Description:Online Resource
ISSN:1530-6992
DOI:10.1021/acs.nanolett.9b05161

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