Autonomous magnetic devices for micro/nano particle handling

This article describes a lab practical based on the fabrication of thick hard magnetic films, their patterning at the micro-scale, their integration into microfluidic systems and their use in particle capture and sorting. It combines both standard and recently developed microfabrication techniques in order to create autonomous, downscaled magnetic micro-systems which can produce high magnetic forces on micro- and nano-sized objects. The lab practical was designed for Master students, but can be used as an introductory course for higher-level students starting in the field

VO2 thin films & nanostructures for micro-systems

International audienc

A dual nanosecond-pulsed laser setup for nanocomposite synthesis—Ag nanoparticles in Al 2 O 3 /VO 2 matrix

International audienc

Growth of isolated Co clusters in the gas phase: experiment and molecular dynamics simulation

International audienceThe structures of cobalt clusters are investigated by simulations and experiments. The growth process of isolated clusters in gas phase is simulated by molecular dynamics, growing clusters atom by atom from a small seed up to the size of 600 atoms. Experimentally, clusters are generated by a laser ablation cluster generator using low energy clusters beam deposition. Then, the deposited aggregates are characterized with high resolution transmission electronic microscope. Simulation results are compared with the experiment, and with previous density functional theory and semiempirical calculations, obtaining a good agreement both for the geometric structures and for the behavior of lattice contraction. Finally, aggregation simulations are performed to determine the nucleation rate of cobalt monomers

Magneto-optical imaging and analysis of magnetic field micro-distributions with the aid of biased indicator films

International audienc

Fabrication and characterization of polymer membranes with integrated arrays of high performance micro-magnets

International audienc

Magnetic microfluidic microsystems (Bio-Mag-MEMS) combining magnetophoresis and dielectrophoris for cell sorting

International audienc