A food freshness sensor using the multistate response from analyte-induced aggregation of a cross-reactive poly(thiophene).
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.
Maynor
Marc S
MS
Department of Chemistry & Biochemistry, University of South Carolina, 631 Sumter Street, Columbia, South Carolina 29208, USA.
Nelson
Toby L
TL
O'Sullivan
Caroline
C
Lavigne
John J
JJ
D000818:Animals; D001679:Biogenic Amines / Q000032:analysis*; D005399:Fishes; D005504:Food Analysis / Q000295:instrumentation / Q000379:methods* / Q000592:standards; D011108:Polymers; D017747:Seafood / Q000032:analysis*; D013876:Thiophenes
D001679:Biogenic Amines; D011108:Polymers; D013876:Thiophenes