Synthesis and characterization of magnetite particles covered with α-trietoxysilil-polydimethylsiloxane

Particles that slide over the water surface: Synthesis and characterization of iron oxides particles coated with PDMS, with hydrophobic and magnetic properties

“…M€ ossbauer spectrum at room temperature (300 K) for the samples S1, S2 and S4. with the results reported by Durdureanu-Angheluta et al [38]. However, the saturation magnetization value is significantly lower than that of bulk magnetite (92 emu g À1 ) due to the presence of maghemite phase (g-Fe 2 O 3 ) in samples of magnetic iron oxide, which causes a disorder in the surface decreasing its magnetic moment [39,40].…”

Tailored and Functionalized Magnetite Particles for Biomedical and Industrial Applications

“…Electrostatic or steric stabilization represent the main step in obtaining "core-shell" magnetic particles with magnetite core and a shell formed by different surfactants. We summarize here some examples and also some data previously reported by our group (figure 1) on the preparation of magnetite particles coated by different Si-containing compounds (monomers and polymers) (Durdureanu-Angheluta et al, 2008;Durdureanu-Angheluta et al, 2009;Durdureanu-Angheluta et al, 2010;Pricop et al, 2010).…”

Magneto‐Mechanical Surfaces Design

“…Magnetization curves of nanoparticles and magnetic composites are required in order to obtain their response against an external magnetic field. This information can be obtained through vibrating sample magnetometer (VSM),, or superconduc‐ting quantum interference device magnetometer (SQID) experiments ,,. Magnetization versus external magnetic field (MH) graphs, along with zero field cooling (ZFC) and field cooling (FC) plots, are obtained.…”

“…Nanocomposites are dispersions of magnetic nanoparticles (MNP) in a typically polymeric matrix. The range of available MNPs is in permanent growth, from new rare earth magnetic compositions, to novel superparamagnetic particles with functional coatings, or even particle clusters of controlled size and multifunctionality, Table summarizes some of the most common magnetic nanoparticles employed for this purpose.…”