Keyword Author: ochratoxin A

Mycotoxin Aptasensing Amplification by using Inherently Electroactive Graphene-Oxide Nanoplatelet Labels

We develop an electrochemical aptasensor for ochratoxinA (OTA) by utilizing graphene-oxide nanoplatelets (GONPs) as electroactive labels. OTA aptamer (OTA-apt), which serves as the recognition element, was first immobilized onto the electrode surface before the modified electrode underwent exposure to OTA. Subsequently, incubation with GONPs was performed and the nanoplatelets conjugated to the immobilized OTA-apt through …

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Simultaneous Anodic and Cathodic Voltammetric Detection of Patulin and Ochratoxin A on Well-Defined Carbon Electrodes

Detection of mycotoxins is paramount importance for food quality control. Here we compare well-defined surfaces for electrochemical detection of patulin and ochratoxin A on edge plane pyrolytic graphite and glassy carbon electrodes. Patulin shows well-defined peak at similar to – 1.5 V, deeply in cathodic region; ochratoxin A is in contrary oxidizable at potential similar …

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