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Keywords:

  • barcode;
  • DNA;
  • mass spectrometry;
  • monolayer;
  • nanomaterials

Graphical Abstract

Thumbnail image of graphical abstract

The Da Vinci Code: Monolayer-barcoded nanoparticles have been successfully prepared by simultaneous incorporation of probe elements and organic molecules. The organic species serve as mass-tagging surrogates for MS readout and allow on-chip DNA hybridization assay by laser desorption/ionization time-of-flight MS. The strategy could readily be extended to the identification of a vast range of biomolecular binding events.