Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7584333 | Food Chemistry | 2018 | 5 Pages |
Abstract
Optical waveguide lightmode spectroscopy (OWLS) was applied for the detection of aflatoxin B1, in a competitive immunoassay format, to compare the analytical sensitivity achieved with an immunosensor design allowing signal enhancement by increasing the sensor surface through immobilization of gold nanoparticles (AuNPs) of different size and origin (obtained by chemical or biotechnological synthesis). The effects of AuNPs median size, the methods of sensitization and the biochemical parameters on immunosensor performace were examined. After optimization of the sensitized sensor surface, an immunosensing method was developed for the analysis of aflatoxin in paprika matrix and the results were compared with HPLC reference measurements.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Nóra Adányi, Ádám György Nagy, Bettina Takács, István SzendrÅ, George Szakacs, Rózsa Szűcs, Eszter Tóth-Szeles, István Lagzi, Diána Weiser, Viktória Bódai, Péter Sátorhelyi, Balázs Erdélyi,