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  • Title: A food freshness sensor using the multistate response from analyte-induced aggregation of a cross-reactive poly(thiophene).
    Author: Maynor MS, Nelson TL, O'Sullivan C, Lavigne JJ.
    Journal: Org Lett; 2007 Aug 16; 9(17):3217-20. PubMed ID: 17637024.
    Abstract:
    A single cross-reactive conjugated polymer generates a multidimensional response capable of identifying and differentiating between 22 structurally similar and biologically relevant amines with 97% accuracy in a highly competitive aqueous environment. Statistical analysis on an array of wavelengths was used to assess the viability of this approach. In a separate investigation, the multidimensional response from a single cross-responsive poly(thiophene) has been analyzed using a different ratiometric method to quantify the amount of biogenic amine present in a fish matrix, thereby evaluating the quality of the food.
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