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Electrochemical oxidation of ochratoxin A at a glassy carbon electrode and in s...
Oliveira, S. C. B.; Diculescu, V. C.; Palleschi, G.; Compagnone, D.; Oliveira-Brett, A. M.Ochratoxin A (OTA) is a fungal metabolite that occurs in foods, beverages, animal tissues, human blood and presents carcinogenic, teratogenic and nephrotoxic properties. This study concerns the redox properties of OTA using electrochemical techniques which have the potential for providing insights into the biological redox reactions of this molecule. The in situ evaluation of the OTA interaction with DNA using ...
Carbon film electrodes for oxidase-based enzyme sensors in food analysis
Luca, S. De; Florescu, M.; Ghica, M. E.; Lupu, A.; Palleschi, G.; Brett, C. M. A.; Compagnone, D.Carbon film resistor electrodes have been evaluated as transducers for the development of multiple oxidase-based enzyme electrode biosensors. The resistor electrodes were first modified with Prussian Blue (PB) and then covered by a layer of covalently immobilized enzyme. Electrochemical impedance spectroscopy was used to characterize the interfacial behaviour of the Prussian Blue modified and enzyme electrodes;...
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