DNA-templated silver nanoclusters: structural correlation and fluorescence modulation

Nanoscale. 2016 Oct 20;8(41):17729-17746. doi: 10.1039/c6nr05872h.

Abstract

12 years after the introduction of DNA-templated silver nanoclusters (DNA-AgNCs), exciting progress has been made and yet we are still in the midst of trying to fully understand this nanomaterial. The prominent excellence of DNA-AgNCs is undoubtedly its modulatable emission property, of which how variation in DNA templates causes emission tuning remains elusive. Based on the up-to-date DNA-AgNCs, we aim to establish the correlation between the structure/sequence of DNA templates and emission behaviour of AgNCs. Herein, we systematically present a wide-range of DNA-AgNCs based on the structural complexity of the DNA templates, including single-stranded DNA (ssDNA), double-stranded DNA (dsDNA), triple-stranded DNA (tsDNA) and DNA nanostructures. For each DNA category, we discuss the emission property, quantum yield and synthesis condition of the respective AgNCs, before cross-comparing the impact of different DNA scaffolds on the properties of AgNCs. A future outlook for this area is given as a conclusion. By putting the information together, this review may shed new light on understanding DNA-AgNCs while we are expecting continuous breakthroughs in this field.

Publication types

  • Review

MeSH terms

  • DNA / chemistry*
  • DNA, Single-Stranded / chemistry*
  • Metal Nanoparticles*
  • Nucleic Acid Conformation
  • Silver*
  • Spectrometry, Fluorescence

Substances

  • DNA, Single-Stranded
  • Silver
  • DNA