From Hollow to Dense Spheres: Control of Dipolar Interactions by Tailoring the Architecture in Colloidal Aggregates of Superparamagnetic Iron Oxide Nanocrystals

摘要

The fabrication of colloids with desired properties has been the aim of many recent investigations. The modification of colloids was found to be a powerful tool for drastically changing or precisely tuning their optical, mechanical, and surface properties. Of special interest for applications in biotechnology and for studying fundamental phenomena in physics is the preparation and manipulation of colloidal organizations containing magnetic nanocrystals.