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    Enantioselective Detection of D- and L-Phenylalanine Using Optically Active Polyaniline


    Sheridan, Edel M. and Breslin, Carmel B. (2005) Enantioselective Detection of D- and L-Phenylalanine Using Optically Active Polyaniline. Electroanalysis, 17 (5-6). pp. 532-537. ISSN 1040-0397

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    Abstract

    Chiral conducting polyaniline, which was prepared electrochemically from (+) and (−) camphorsulfonic acid, was utilized for the enantiomeric detection of phenylalanine in neutral phosphate buffer solution. Following electropolymerization the polymer films were dedoped in aqueous ammonia and subsequently shown to maintain their chiral character. The electrochemical window for this polymer was determined to be between 0.2 V and 0.8 V (vs. SCE) and enantiomeric discrimination between L- and D-phenylalanine was seen with the application of differential pulse voltammetry. The (+) chiral polymer is shown to behave as an enantiomeric detector for the D enantiomer producing a peak in the voltammogram at ca. 0.7 V (vs. SCE) while the inverse is true for the (−) polymer, which detects the L enantiomer.

    Item Type: Article
    Keywords: Enantioselective detection; Phenylalanine; Chiral polyaniline; Differential pulse voltammetry;
    Academic Unit: Faculty of Science and Engineering > Chemistry
    Item ID: 7927
    Identification Number: https://doi.org/10.1002/elan.200403192
    Depositing User: Dr. Carmel Breslin
    Date Deposited: 15 Feb 2017 16:38
    Journal or Publication Title: Electroanalysis
    Publisher: Wiley
    Refereed: Yes
    Funders: Enterprise Ireland (EI)
    URI:

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