Plasmonic ELISA for the detection of gp120 at ultralow concentrations with the naked eye

D. Cecchin, Roberto De La Rica, R.E.S. Bain, Michael W. Finnis, M.M. Stevens, G. Battaglia

Research output: Contribution to journalArticlepeer-review

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The technique of plasmonic ELISA is utilised here to detect the HIV-1 protein gp120 with the ultralow limit of detection of 8 × 10−20 M (10−17 g mL−1) in an independent laboratory. It was corroborated that changes in the concentration of hydrogen peroxide as small as 0.05 μM could lead to nanoparticle solutions of completely different tonality.
Original languageEnglish
Pages (from-to)9559-9562
Number of pages4
Issue number16
Early online date5 May 2014
Publication statusPublished - 2014


  • plasmonic ELISA
  • ultralow concentrations
  • nanoparticle solutions

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