Iridium oxide (IV) nanoparticle-based electrocatalytic detection of PBDE

Daniel Quesada-González, Alessandra Baiocco, Andrea A. Martos, Alfredo de la Escosura-Muñiz, Giuseppe Palleschi, Arben Merkoçi

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    10 Citations (Scopus)


    © 2018 Elsevier B.V. Polybrominated diphenyl ethers (PBDEs) are a type of flame retardants which are currently banned in EU and USA due their hazardousness for humans and mammals. However, these compounds were highly used during more than 30 years and still persist in the environment since they are resistant to degradation. Herein we present a biosensor for the detection of PBDEs using screen printed carbon electrodes (SPCEs) based on the electrochemical monitoring of water oxidation reaction (WOR) catalyzed by iridium oxide (IV) nanoparticles (IrO 2 NPs). Our assay shows a limit of detection of 21.5 ppb of PBDE in distilled water. We believe that such an IrO 2 NPs-based electrocatalytic sensing system can lead to a rapid, sensitive, low cost and miniaturizable device for the detection of PBDEs.
    Original languageEnglish
    Pages (from-to)150-154
    JournalBiosensors and Bioelectronics
    Publication statusPublished - 15 Feb 2019


    • Electrocatalysis
    • Flame retardants
    • Iridium oxide nanoparticles
    • PBDEs
    • Screen printed carbon electrodes


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