DNA-embedded Au/Ag core-shell nanoparticles

Dong-Kwon Lim, In Jung Kim, Jwa Min Nam

Research output: Contribution to journalArticle

74 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)5312-5314
Number of pages3
JournalChemical Communications
Issue number42
DOIs
Publication statusPublished - 2008 Nov 10
Externally publishedYes

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ASJC Scopus subject areas

  • Catalysis
  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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