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Keywords:

  • gold nanoparticles;
  • heterogeneous catalysts;
  • self-assembled monolayers;
  • hydrophobic interactions;
  • molecular recognition
Thumbnail image of graphical abstract

An unprecedented substrate-selective catalytic enhancement effect of an alkanethiol-self-assembled monolayer (SAM) on Au nanoparticles (AuNPs) is reported. In the supported 2D-array of AuNPs, the alkanethiol-SAM acts as a protein-like soft reaction space in which the substrate molecules are encapsulated through non-covalent intermolecular hydrophobic interactions, and thus catalytic reactions are accelerated at AuNP surfaces.