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Issue 42, 2008
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DNA-embedded Au/Ag core–shell nanoparticles

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Abstract

Here, we synthesized highly stable DNA-embedded Au/Ag core–shell nanoparticles (NPs) by a straightforward silver-staining of DNA-modified Au nanoparticles (AuNPs); unlike conventional DNA-surface modified NPs that present particle stability issues, DNA-embedded core–shell NPs offer an extraordinary stability with nanoscale controllability of silver shell thickness; these DNA-embedded core–shell NPs show excellent biorecognition properties and Ag shell-thickness-based optical properties, distinctively different from those of a mixture of AuNPs and AgNPs or Ag/Au alloy nanoparticles.

Graphical abstract: DNA-embedded Au/Ag core–shell nanoparticles

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Publication details

The article was received on 16 Jun 2008, accepted on 23 Jul 2008 and first published on 15 Sep 2008


Article type: Communication
DOI: 10.1039/B810195G
Citation: Chem. Commun., 2008,0, 5312-5314
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    DNA-embedded Au/Ag core–shell nanoparticles

    D. Lim, I. Kim and J. Nam, Chem. Commun., 2008, 0, 5312
    DOI: 10.1039/B810195G

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