Abstract
We demonstrate here a DNA-based conformationally switchable nanodumbell structure that modulates the interparticle distance between two gold-silver core-shell nanoparticles to induce significant changes in the SERS signal.
Publication types
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Research Support, U.S. Gov't, Non-P.H.S.
MeSH terms
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Carbocyanines / chemistry
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DNA / chemistry
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Gold / chemistry
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Metal Nanoparticles / chemistry*
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Nucleic Acid Conformation
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Particle Size
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Silver / chemistry
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Spectrum Analysis, Raman*
Substances
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Carbocyanines
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cyanine dye 3
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Silver
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Gold
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DNA