Zinc- poly aniline- Palladium core shell for Non-enzymatic electrochemical detection of Acetaminophen

Abstract

In this work, the electrochemical performance of ZnO-(3-Aminopropyl)triethoxysilane (APTES) was studied, along with poly(2-anilinoethanol)-(M-ZnO-P2AE NC) embedded with Pd nanoparticles for detecting Acetaminophen. The core-shell structure was synthesized in a three-step process: solvothermal synthesis, hydrothermal treatment, and surface decoration with Pd nanoparticles.  Physicochemical analysis shows that Pd decoration enhances the optical and electrochemical performance of the composite, with high  thermal stability. These results suggest that Pd nanoparticles alter the electronic structure of M-ZnO-P2AE NC, as confirmed by diffuse reflectance spectroscopy analysis. Electrochemical detection of Acetaminophen was conducted in the presence of other biomaterials to evaluate the selectivity of the electrode. The electrochemical analysis indicates that the prepared core-shell can effectively monitor Acetaminophen, with a detection limit of 10 nM.