Results

In this presentation, Kalliopi Trohidou discussed the effect on the magnetic properties of the Fe oxide nanoparticles of four different organic coatings prepared and characterized in the framework of the REMAP project. The numerical results, using a mesoscopic model that includes the ligands and particles characteristics and the interparticle magnetic interactions, show that the magnetic behavior of the four systems is very little affected by the type of ligands. The most important role is played by the percentage of coatings on the surface of nanoparticles which is closely related to the sample preparation conditions and the type of the ligands. The numerical results are in good qualitative agreement with magnetic measurements, confirming the formation of the aggregates, during the surface functionalization process.

Diego Colombara illustrates REMAP’s breakthrough innovation during the 50th Congress of the Inorganic Chemistry Division of Società Chimica Italiana held in Naples.

In the framework of WP1, Kalliopi Trohidou analysed the mechanism of cluster formation/dissociation of high-moment Nanoparticles based Ferrofluids stimulated by application/removal of an external magnetic field. An important finding of the work is that the interplay between in-plane and out-of-plane field can result to a fast cluster dissociation and thus can act as a monitoring mechanism for the achievement of the preferable type of clusters inside the liquids. This is crucial for FFs’ magnetic manipulation in various applications.

In the framework of WP1, Marianna Vasilakaki discussed the simulations framework developed in the NCSRD group to study the magnetic behaviour and kinetics of organic coated magnetic nanoparticles for high-performance green technological applications.