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Maria Elena Materia

Early stage researcher* (ESR)/ Early Career Investigator (ECI)
PhD student
Period of mission: 27/09/2015 to 11/10/ 2015
Host institution: iMdea Nanociencia, Madrid (Spain)

Home institution:

Fondazione Istituto Italiano di Tecnologia, Genova (Italy)

The objective of this short-term scientific mission was to obtain a more complete magnetic characterization of different magnetic nanoparticles developed in my group at the Istituto Italiano di Tecnologia (IIT) of Genova. In particular objective of the study were cubic shaped iron oxide (Fe3O4) or cobalt ferrite (CoxFe3-xO4) nanoparticles, and gold iron oxide dimers (AuFe3O4) with a characteristic dumbbell-like structure. These magnetic materials presented outstanding heating ability under the effect of an alternating magnetic field (AMF) resulting very promising tools for hyperthermia applications. For this reason it is of great interest to understand in deep the relaxation processes which regulate the heating response of these magnetic nanoparticles and in particular how size, chemical composition and also solvent viscosity affect these mechanisms. The consolidate experience of Teran’s group in magnetic characterization and in particular in inductive magnetometry and calorimetric measurements allowed to monitor the hysteresis loops of these magnetic materials under different colloidal and AMF conditions and at the same time compare these data with their heating ability shedding light on the relaxation mechanisms involved. At the same time, this experience was also a great opportunity for me to extend my knowledge in the field of magnetism learning new magnetic characterization techniques.


Poster/Oral presentation(s) /Conference abstract(s) originating from this mission

Event: COST meeting: Physical requirements of MH
Location: Athens, Greece
Period: 07-08 April 2016
Authors: Maria Elena Materia
Title: Frequency and viscosity dependence of magnetic nanoparticles hysteresis

Event: 11th International Conference on the Scientific and Clinical Applications of Magnetic Carriers
Location: Vancouver, BC, Canada
Period: May 31-June 4, 2016
Authors: David Cabrera, Maria Elena Materia, Aidin Lak, Daniel Ortega, Pablo Guardia, Ayyappan Sathya, Frank Ludwig, Teresa Pellegrino and Francisco J. Teran
Title: Harnessing viscosity effects to tailor the dynamical magnetic response of magnetic nanoparticles

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