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Keywords:

  • corona discharge;
  • gold;
  • nanoparticle;
  • plasma;
  • SERS
Thumbnail image of graphical abstract

Highly localized and controlled metal nanoparticle synthesis using nanoscale corona discharge in aqueous solutions is illustrated. As a case study, gold nanoparticles are successfully deposited at the very tip of carbon nanopipettes to act as surface-enhanced Raman spectroscopy (SERS) probes.