Fluorescent Au nanoclusters: Recent progress and sensing applications

  • Sun J
  • Jin Y
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Recent progress in nanotechnology has given rise to a new class of
fluorescent nanomaterials: fluorescent noble metal nanoclusters.
The noble metal nanoclusters include Ag{,} Au{,} Cu and Pt and typically
consist of a ligand shell and a metal core{,} which incorporates
various numbers of atoms ranging from only a few to several hundred{,}
with diameters of these materials because of their attractive features{,} including
convenient synthesis{,} ultra-small size{,} fluorescent properties{,}
excellent optical/colloidal stability and biocompatibility. This
paper summarizes the common synthesis strategies for obtaining water-soluble{,}
highly fluorescent Au nanoclusters using different capping agents{,}
and highlights recent advances in their fluorescent sensing applications
with an emphasis on the sensing mechanisms. We also consider the
prospects{,} opportunities and challenges for the synthesis and application
of Au nanoclusters.

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  • Jian Sun

  • Yongdong Jin

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