New ferrofluid composites: Magnetism and optics experiments

International audienc

Temporal heterogeneity and spatial correlation of the slow dynamics of soft glassy systems

International audienc

Heterogeneous dynamics and ageing in a dense ferro-glass

International audienc

Internal structure of Hela magnetic endosomes

International audienc

Relaxation der doppelbrechung magnetischer nanopartikel während bindungsreaktionen

La présente invention concerne un nouveau procédé de détection d'analytes, en particulier de réactions de liaison à l'aide de la mesure de la relaxation de la biréfringence, ainsi que l'utilisation des composés nécessaires à l'analyse.The invention relates to a new method for detecting analytes, especially binding reactions, by means of measurement of the birefringence, and also to the use of compounds which are necessary to the analysis.Die Erfindung betrifft ein neues Verfahren zur Detektion von Analyten bzw. Bindungseaktionen mittels Messung der Doppelbrechung, sowie die Verwendung der dazu notwendigen Verbindungen in der Analytik

Investigation of water-based and oil-based ferrofluids with a new magnetorheological cell: effect of the microstructure.

International audienc

Orientational behavior of an assembly of superparmagnetic rods

In a previous article, we described the synthesis and magnetic characterization of superparamagnetic elongated assembly of iron oxide nanoparticles and block copolymers by electrostatic interactions. We demonstrated that those rod-like aggregates preserved the superparmagnetic behavior of the magnetic nanoparticles that are included in it. Here we investigate the dynamic behavior of those rods using optical dynamic birefringence measurements on rods samples made from different lengths. Herein we confirme the superparamagnetic behavior of the magnetic rods and emphasize a new method for the determination the ensemble averaged length of the rods by a macroscopic optical method.IsoThermal Calorimetry as a Probe of Interactions between Magnetic Nanoparticles, Plasma Proteins and Cell

Magnetic nanocomposites, micelles and vesicles - Local structure of magnetic endosomes

Conférence sur invitation présentée par Regine Perzynsk