Peptide modified SWNT array-based copper sensor

Monessha Nambiar, Joseph Shapter

    Research output: Contribution to conferencePaperpeer-review

    Abstract

    A vertically aligned nanotube (NT) array platform with peptide-modified ends is used for sensing metal ions in aqueous environments. The NT arrays were assembled on gold substrates and characterised using confocal Raman microscopy to confirm the electrode fabrication process. A copper ion selective peptide GlyGlyHis was used as the sensing recognition element. Cyclic voltammetry was used to measure the sensor's electrochemical response of the bound copper and to determine the stability of the sensor. The sensor showed minimum interference from other species and was proven to be very sensitive, enabling detection in the nanomolar range.

    Original languageEnglish
    Pages124-127
    Number of pages4
    DOIs
    Publication statusPublished - 1 Dec 2010
    Event2010 International Conference On Nanoscience and Nanotechnology (ICONN2010) -
    Duration: 22 Feb 2010 → …

    Conference

    Conference2010 International Conference On Nanoscience and Nanotechnology (ICONN2010)
    Period22/02/10 → …

    Keywords

    • Carbon nanotubes
    • Confocal Raman spectroscopy
    • Copper sensor
    • Cyclic voltammetry
    • GlyGlyHis

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