Effect of magnetic nanoparticles coating on their electrochemical behaviour at a polarized liquid/liquid interface

MOYA BETANCOURT, SARA N.

JOURNAL OF ELECTROANALYTICAL CHEMISTRY - (Print)

ELSEVIER SCIENCE SA

Lugar: Amsterdam; Año: 2022

1572-6657

he interface between two immiscible electrolyte solutions (ITIES) can act as a platform for the assembly of nanoscale materials. Here, we study the effect of the coated magnetic nanoparticles most commonly used in biomedicine, on their interfacial properties, analysing the effect of applied potential on their interfacial behaviour, and the interactions that occur during these perturbations. The importance of this study is based on the similarity of the water/organic solvent interface with that generated at the cell membrane in the extra-cellular environment. Magnetite nanoparticles were successfully obtained by co-precipitation method, and were coated with chitosan and diethylaminoethyl dextran. Microstructure, magnetic properties and the electrochemical behaviour of the nanoparticles at liquid/liquid interfaces were studied. The presence of these nanoparticles at the interface facilitates the ion transfer process and increases the value of capacity charge, revealed by adsorption curv