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Quantitative single molecule surface-enhanced Raman scattering by optothermal tuning of DNA origami-assembled plasmonic nanoantennas

Abstract:

DNA origami is a powerful approach for assembling plasmonic nanoparticle dimers and Raman dyes with high yields and excellent positioning control. Here we show how optothermal induced shrinking of a DNA origami template can be employed to control the gap sizes between two 40 nm gold nanoparticles in a range of 1 nm – 2 nm. The high field confinement achieved with this optothermal approach was demonstrated by detection of surface-enhanced Raman spectrosco...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Accepted manuscript

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Publisher copy:
10.1021/acsnano.6b05276

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Department:
Oxford, MPLS, Physics, Condensed Matter Physics
Role:
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Publisher:
American Chemical Society Publisher's website
Journal:
ACS Nano Journal website
Volume:
10
Issue:
11
Pages:
9809–9815
Publication date:
2016-09-05
Acceptance date:
2016-09-20
DOI:
ISSN:
1936-086X
Pubs id:
pubs:645861
URN:
uri:1218bf77-1d59-4419-a492-ffce41926937
UUID:
uuid:1218bf77-1d59-4419-a492-ffce41926937
Local pid:
pubs:645861
Language:
English
Keywords:

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