70. Clusters of Magnetite-Maghemite Nanocrystals with a Chemically-tailored Average Diameter

Miguel A. Ramos-Docampo, Martín Testa-Anta, Beatriz Rivas-Murias, Verónica Salgueiriño

Journal of Nanoscience and Nanotechnology (2019), 19, 4930-4937 (DOI: 10.1166/jnn.2019.16788).

Clusters of magnetic nanocrystals are very advantageous if keeping the superparamagnetic state of the individual nanocrystals while taking advantage of a large total magnetic moment, as very convenient in sensing, catalysis and bio-related applications. Herein, we demonstrate how the molecular weight of poly(ethylene glycol) exerts a dominant role in controlling the final size of the clusters and the average crystallites forming them, which delineate the final magnetic properties and their potential applications.

35 2019 JNN