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    Electrochemical strategies for the label-free detection of amino acids, peptides and proteins

    Access Status
    Fulltext not available
    Authors
    Herzog, G.
    Arrigan, Damien
    Date
    2007
    Type
    Journal Article
    
    Metadata
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    Citation
    Herzog, G. and Arrigan, D. 2007. Electrochemical strategies for the label-free detection of amino acids, peptides and proteins. The Analyst. 132 (7): pp. 615-632.
    Source Title
    The Analyst
    DOI
    10.1039/b701472d
    ISSN
    00032654
    URI
    http://hdl.handle.net/20.500.11937/31876
    Collection
    • Curtin Research Publications
    Abstract

    Electrochemical methods for the detection of amino acids, peptides, and proteins in a variety of media are reviewed. Label-free strategies in which the detection is based on the inherent electrochemical properties of the analyte are discussed. Various processes such as direct or mediated (in solution or immobilised) redox processes and interfacial ion transfers have been employed for the electrochemical detection and determination of the target analytes. The various methods covered encompass voltammetry at uncoated and modified electrodes and at immiscible liquid–liquid interfaces, potentiometry at polymer membrane electrodes and electrochemical impedance spectroscopy. The determination of the target analytes in complex biological matrices is discussed. The various approaches highlighted here illustrate the rich capabilities of electrochemical methods as simple, low-cost, sensitive tools for the determination of these important biological analytes at trace and ultra-trace levels

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