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A blocking-free one-step immunosensing strategy using 8-channel screen-printed arrays for the detection of anti-transglutaminase IgA antibodies, celiac disease biomarkers, was developed. A simple but novel immobilization approach to efficiently modify the surface of screen-printed electrodes with a recognition element was employed in order to minimize the non-specific adsorption on the electrode surface,...
In this article, we present two novel methodologies, using a simple electrochemical approach, for the determination of the size and particle concentration of Cd-based Quantum Dots (QDs), nanoparticles widely used as photoluminescent labels in many bioanalytical applications. Such QDs were analyzed directly in organic medium and in water after derivatization with an amphiphilic polymer. Screen-printed...
A miniaturized electrochemical biosensor array with in situ detection of quantum dots (QDs) was developed for the detection of anti-transglutaminase IgG antibodies (a celiac disease biomarker) in human sera. For the fabrication of the sensor, a 8-channel screen-printed carbon electrochemical arrays were used as transducers and modified with tissue-transglutaminase by adsorption. The immunologic reaction...
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