Hot electron-induced electrogenerated chemiluminescence of Ru(bpy)3 2 + chelate at a pointed active metal cathode in fully aqueous solutions

Päivi Kuosmanen, Kalle Salminen*, Matti Pusa, Timo Ala-Kleme, Sakari Kulmala

*Corresponding author for this work

    Research output: Contribution to journalArticleScientificpeer-review

    6 Citations (Scopus)

    Abstract

    Tris(2,2′-bipyridine)ruthenium(II) chelate exhibits strong electrogenerated chemiluminescence during cathodic high-voltage pulse-polarization of pointed Pt electrode in aqueous solutions. The present method is based on a field emission or other type of tunnel emission of hot electrons into an aqueous electrolyte solution. The method allows the detection of tris(2,2′-bipyridine)ruthenium(II) and its derivatives below nanomolar concentration levels and yields linear log-log calibration plots spanning several orders of magnitude of concentration.

    Original languageEnglish
    Pages (from-to)63-67
    Number of pages5
    JournalJournal of Electroanalytical Chemistry
    Volume783
    DOIs
    Publication statusPublished - 15 Dec 2016
    MoE publication typeA1 Journal article-refereed

    Keywords

    • Bioaffinity assay
    • DNA probe assay
    • Electrochemiluminescence
    • Hot electron
    • Immunoassay

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